./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c4f91361 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 ../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound1.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 1e1d72742850b95338b71e8d041fa264ac4d7956cbe86d6603297a369e94cb76 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-c4f9136-m [2023-11-23 16:05:44,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 16:05:45,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 16:05:45,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 16:05:45,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 16:05:45,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 16:05:45,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 16:05:45,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 16:05:45,069 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 16:05:45,069 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 16:05:45,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 16:05:45,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 16:05:45,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 16:05:45,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 16:05:45,073 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 16:05:45,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 16:05:45,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 16:05:45,077 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 16:05:45,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 16:05:45,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 16:05:45,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 16:05:45,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 16:05:45,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 16:05:45,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 16:05:45,080 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 16:05:45,080 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 16:05:45,080 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 16:05:45,081 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 16:05:45,081 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 16:05:45,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 16:05:45,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 16:05:45,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 16:05:45,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 16:05:45,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:05:45,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 16:05:45,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 16:05:45,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 16:05:45,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 16:05:45,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 16:05:45,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 16:05:45,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 16:05:45,084 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 16:05:45,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 16:05:45,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 16:05:45,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e1d72742850b95338b71e8d041fa264ac4d7956cbe86d6603297a369e94cb76 [2023-11-23 16:05:45,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 16:05:45,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 16:05:45,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 16:05:45,320 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 16:05:45,320 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 16:05:45,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound1.c [2023-11-23 16:05:46,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 16:05:46,459 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 16:05:46,459 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound1.c [2023-11-23 16:05:46,465 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b5b4419/a400c947b9164b0ba093b09ccbc96f42/FLAG0c0866971 [2023-11-23 16:05:46,477 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b5b4419/a400c947b9164b0ba093b09ccbc96f42 [2023-11-23 16:05:46,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 16:05:46,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 16:05:46,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 16:05:46,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 16:05:46,486 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 16:05:46,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a43c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46, skipping insertion in model container [2023-11-23 16:05:46,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,507 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 16:05:46,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:05:46,642 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 16:05:46,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:05:46,689 INFO L206 MainTranslator]: Completed translation [2023-11-23 16:05:46,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46 WrapperNode [2023-11-23 16:05:46,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 16:05:46,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 16:05:46,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 16:05:46,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 16:05:46,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,718 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 116 [2023-11-23 16:05:46,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 16:05:46,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 16:05:46,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 16:05:46,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 16:05:46,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,744 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]. [2023-11-23 16:05:46,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 16:05:46,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 16:05:46,753 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 16:05:46,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 16:05:46,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (1/1) ... [2023-11-23 16:05:46,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:05:46,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:46,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 16:05:46,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 16:05:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 16:05:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 16:05:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 16:05:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 16:05:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 16:05:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 16:05:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 16:05:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 16:05:46,869 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 16:05:46,871 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 16:05:47,149 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 16:05:47,168 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 16:05:47,168 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 16:05:47,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:47 BoogieIcfgContainer [2023-11-23 16:05:47,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 16:05:47,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 16:05:47,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 16:05:47,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 16:05:47,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:05:46" (1/3) ... [2023-11-23 16:05:47,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2b2a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:47, skipping insertion in model container [2023-11-23 16:05:47,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:46" (2/3) ... [2023-11-23 16:05:47,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2b2a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:47, skipping insertion in model container [2023-11-23 16:05:47,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:47" (3/3) ... [2023-11-23 16:05:47,175 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound1.c [2023-11-23 16:05:47,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 16:05:47,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-23 16:05:47,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 16:05:47,229 INFO L357 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, mHoare=true, 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;@4000bce8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 16:05:47,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-11-23 16:05:47,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 16:05:47,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 16:05:47,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:47,239 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:47,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:47,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:47,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1031300897, now seen corresponding path program 1 times [2023-11-23 16:05:47,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:47,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325800808] [2023-11-23 16:05:47,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:47,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 16:05:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 16:05:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:47,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:47,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325800808] [2023-11-23 16:05:47,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325800808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:47,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:47,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:05:47,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61755256] [2023-11-23 16:05:47,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:47,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 16:05:47,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:47,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 16:05:47,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 16:05:47,442 INFO L87 Difference]: Start difference. First operand has 136 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:47,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:47,470 INFO L93 Difference]: Finished difference Result 270 states and 287 transitions. [2023-11-23 16:05:47,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 16:05:47,472 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-23 16:05:47,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:47,477 INFO L225 Difference]: With dead ends: 270 [2023-11-23 16:05:47,477 INFO L226 Difference]: Without dead ends: 133 [2023-11-23 16:05:47,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 16:05:47,482 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:47,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:05:47,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-23 16:05:47,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-11-23 16:05:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 70 states have (on average 1.8428571428571427) internal successors, (129), 127 states have internal predecessors, (129), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 135 transitions. [2023-11-23 16:05:47,512 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 135 transitions. Word has length 13 [2023-11-23 16:05:47,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:47,513 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 135 transitions. [2023-11-23 16:05:47,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 135 transitions. [2023-11-23 16:05:47,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 16:05:47,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:47,514 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:47,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 16:05:47,514 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:47,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:47,515 INFO L85 PathProgramCache]: Analyzing trace with hash 638333469, now seen corresponding path program 1 times [2023-11-23 16:05:47,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:47,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448932962] [2023-11-23 16:05:47,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:47,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 16:05:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 16:05:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:47,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:47,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448932962] [2023-11-23 16:05:47,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448932962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:47,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:47,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:05:47,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593596931] [2023-11-23 16:05:47,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:47,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:05:47,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:47,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:05:47,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:05:47,593 INFO L87 Difference]: Start difference. First operand 133 states and 135 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:47,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:47,682 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2023-11-23 16:05:47,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:05:47,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-23 16:05:47,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:47,684 INFO L225 Difference]: With dead ends: 133 [2023-11-23 16:05:47,684 INFO L226 Difference]: Without dead ends: 129 [2023-11-23 16:05:47,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:05:47,685 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 117 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:47,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 81 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:47,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-23 16:05:47,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-11-23 16:05:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 70 states have (on average 1.7857142857142858) internal successors, (125), 123 states have internal predecessors, (125), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:47,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 131 transitions. [2023-11-23 16:05:47,693 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 131 transitions. Word has length 13 [2023-11-23 16:05:47,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:47,694 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 131 transitions. [2023-11-23 16:05:47,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:47,694 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 131 transitions. [2023-11-23 16:05:47,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 16:05:47,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:47,695 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:47,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 16:05:47,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:47,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:47,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1686498902, now seen corresponding path program 1 times [2023-11-23 16:05:47,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:47,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613371194] [2023-11-23 16:05:47,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:47,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 16:05:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 16:05:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:47,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:47,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613371194] [2023-11-23 16:05:47,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613371194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:47,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:47,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:05:47,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659765351] [2023-11-23 16:05:47,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:47,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:05:47,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:47,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:05:47,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:05:47,764 INFO L87 Difference]: Start difference. First operand 129 states and 131 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:47,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:47,837 INFO L93 Difference]: Finished difference Result 129 states and 131 transitions. [2023-11-23 16:05:47,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:05:47,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-23 16:05:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:47,843 INFO L225 Difference]: With dead ends: 129 [2023-11-23 16:05:47,845 INFO L226 Difference]: Without dead ends: 125 [2023-11-23 16:05:47,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:05:47,847 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 112 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:47,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 81 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:47,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-23 16:05:47,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-11-23 16:05:47,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 70 states have (on average 1.7285714285714286) internal successors, (121), 119 states have internal predecessors, (121), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:47,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2023-11-23 16:05:47,859 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 14 [2023-11-23 16:05:47,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:47,860 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2023-11-23 16:05:47,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:47,860 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2023-11-23 16:05:47,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 16:05:47,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:47,860 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:47,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 16:05:47,861 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:47,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:47,862 INFO L85 PathProgramCache]: Analyzing trace with hash -741858369, now seen corresponding path program 1 times [2023-11-23 16:05:47,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:47,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146204202] [2023-11-23 16:05:47,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:47,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 16:05:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 16:05:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:47,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:47,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146204202] [2023-11-23 16:05:47,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146204202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:47,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:47,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:47,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180861933] [2023-11-23 16:05:47,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:47,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:47,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:47,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:47,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:47,917 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:48,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:48,038 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2023-11-23 16:05:48,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:05:48,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2023-11-23 16:05:48,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:48,041 INFO L225 Difference]: With dead ends: 125 [2023-11-23 16:05:48,042 INFO L226 Difference]: Without dead ends: 122 [2023-11-23 16:05:48,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:48,043 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 219 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:48,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 75 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:48,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-23 16:05:48,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-11-23 16:05:48,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.6857142857142857) internal successors, (118), 116 states have internal predecessors, (118), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2023-11-23 16:05:48,054 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 15 [2023-11-23 16:05:48,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:48,054 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2023-11-23 16:05:48,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:48,054 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2023-11-23 16:05:48,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 16:05:48,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:48,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:48,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 16:05:48,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:48,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:48,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1522772916, now seen corresponding path program 1 times [2023-11-23 16:05:48,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:48,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586617374] [2023-11-23 16:05:48,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:48,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 16:05:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 16:05:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:48,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:48,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586617374] [2023-11-23 16:05:48,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586617374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:48,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:48,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:48,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310840895] [2023-11-23 16:05:48,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:48,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:48,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:48,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:48,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:48,128 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:48,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:48,212 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2023-11-23 16:05:48,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:05:48,212 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2023-11-23 16:05:48,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:48,214 INFO L225 Difference]: With dead ends: 122 [2023-11-23 16:05:48,215 INFO L226 Difference]: Without dead ends: 119 [2023-11-23 16:05:48,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:48,219 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 212 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:48,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 75 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:48,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-23 16:05:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-11-23 16:05:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 70 states have (on average 1.6428571428571428) internal successors, (115), 113 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:48,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2023-11-23 16:05:48,225 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 16 [2023-11-23 16:05:48,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:48,226 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2023-11-23 16:05:48,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:48,226 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2023-11-23 16:05:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 16:05:48,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:48,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:48,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 16:05:48,227 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:48,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:48,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1199077326, now seen corresponding path program 1 times [2023-11-23 16:05:48,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:48,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552773807] [2023-11-23 16:05:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:48,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:48,234 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:48,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874053473] [2023-11-23 16:05:48,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:48,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:48,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:48,252 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) [2023-11-23 16:05:48,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 16:05:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:48,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:05:48,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:48,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:48,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:48,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552773807] [2023-11-23 16:05:48,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:48,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874053473] [2023-11-23 16:05:48,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874053473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:48,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:48,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:05:48,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193517367] [2023-11-23 16:05:48,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:48,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:05:48,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:48,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:05:48,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:05:48,307 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:48,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:48,344 INFO L93 Difference]: Finished difference Result 222 states and 226 transitions. [2023-11-23 16:05:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:05:48,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-23 16:05:48,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:48,345 INFO L225 Difference]: With dead ends: 222 [2023-11-23 16:05:48,345 INFO L226 Difference]: Without dead ends: 216 [2023-11-23 16:05:48,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:05:48,350 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 95 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:48,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 214 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:05:48,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-23 16:05:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 144. [2023-11-23 16:05:48,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 94 states have (on average 1.6382978723404256) internal successors, (154), 137 states have internal predecessors, (154), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 16:05:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 162 transitions. [2023-11-23 16:05:48,369 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 162 transitions. Word has length 18 [2023-11-23 16:05:48,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:48,369 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 162 transitions. [2023-11-23 16:05:48,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 162 transitions. [2023-11-23 16:05:48,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 16:05:48,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:48,370 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:48,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 16:05:48,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 16:05:48,592 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:48,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:48,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1262076752, now seen corresponding path program 1 times [2023-11-23 16:05:48,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:48,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440371124] [2023-11-23 16:05:48,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:48,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:48,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:48,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010734438] [2023-11-23 16:05:48,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:48,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:48,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:48,599 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) [2023-11-23 16:05:48,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 16:05:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:48,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:05:48,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:48,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:48,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:48,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440371124] [2023-11-23 16:05:48,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:48,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010734438] [2023-11-23 16:05:48,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010734438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:48,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:48,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:05:48,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102193008] [2023-11-23 16:05:48,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:48,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:05:48,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:05:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:05:48,643 INFO L87 Difference]: Start difference. First operand 144 states and 162 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:48,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:48,677 INFO L93 Difference]: Finished difference Result 247 states and 267 transitions. [2023-11-23 16:05:48,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:05:48,678 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-23 16:05:48,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:48,679 INFO L225 Difference]: With dead ends: 247 [2023-11-23 16:05:48,679 INFO L226 Difference]: Without dead ends: 241 [2023-11-23 16:05:48,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:05:48,680 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 93 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:48,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 212 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:05:48,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-23 16:05:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 193. [2023-11-23 16:05:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.647887323943662) internal successors, (234), 185 states have internal predecessors, (234), 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) [2023-11-23 16:05:48,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 244 transitions. [2023-11-23 16:05:48,693 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 244 transitions. Word has length 20 [2023-11-23 16:05:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:48,693 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 244 transitions. [2023-11-23 16:05:48,693 INFO L496 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 244 transitions. [2023-11-23 16:05:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 16:05:48,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:48,694 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:48,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:48,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 16:05:48,919 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:48,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:48,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1674983122, now seen corresponding path program 1 times [2023-11-23 16:05:48,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:48,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465813673] [2023-11-23 16:05:48,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:48,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:48,925 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:48,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066777176] [2023-11-23 16:05:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:48,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:48,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:48,932 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) [2023-11-23 16:05:48,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 16:05:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:48,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:05:48,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:48,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:48,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465813673] [2023-11-23 16:05:48,994 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066777176] [2023-11-23 16:05:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066777176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:48,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:48,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:48,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719891051] [2023-11-23 16:05:48,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:48,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:48,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:48,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:48,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:48,995 INFO L87 Difference]: Start difference. First operand 193 states and 244 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:49,103 INFO L93 Difference]: Finished difference Result 272 states and 315 transitions. [2023-11-23 16:05:49,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:05:49,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-23 16:05:49,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:49,105 INFO L225 Difference]: With dead ends: 272 [2023-11-23 16:05:49,105 INFO L226 Difference]: Without dead ends: 270 [2023-11-23 16:05:49,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:49,106 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:49,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 250 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:49,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-11-23 16:05:49,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 194. [2023-11-23 16:05:49,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 143 states have (on average 1.6363636363636365) internal successors, (234), 186 states have internal predecessors, (234), 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) [2023-11-23 16:05:49,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 244 transitions. [2023-11-23 16:05:49,116 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 244 transitions. Word has length 22 [2023-11-23 16:05:49,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:49,116 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 244 transitions. [2023-11-23 16:05:49,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:49,116 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 244 transitions. [2023-11-23 16:05:49,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 16:05:49,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:49,117 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:49,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:49,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:49,321 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:49,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:49,322 INFO L85 PathProgramCache]: Analyzing trace with hash 384869294, now seen corresponding path program 1 times [2023-11-23 16:05:49,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:49,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52120786] [2023-11-23 16:05:49,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:49,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:49,337 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:49,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262857838] [2023-11-23 16:05:49,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:49,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:49,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:49,339 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) [2023-11-23 16:05:49,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 16:05:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:49,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:05:49,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:49,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:49,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:49,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52120786] [2023-11-23 16:05:49,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:49,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262857838] [2023-11-23 16:05:49,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262857838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:49,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:49,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:49,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103392576] [2023-11-23 16:05:49,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:49,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:49,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:49,404 INFO L87 Difference]: Start difference. First operand 194 states and 244 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:49,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:49,501 INFO L93 Difference]: Finished difference Result 270 states and 313 transitions. [2023-11-23 16:05:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:05:49,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-23 16:05:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:49,503 INFO L225 Difference]: With dead ends: 270 [2023-11-23 16:05:49,503 INFO L226 Difference]: Without dead ends: 268 [2023-11-23 16:05:49,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:49,505 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:49,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 252 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:49,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-23 16:05:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 195. [2023-11-23 16:05:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.625) internal successors, (234), 187 states have internal predecessors, (234), 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) [2023-11-23 16:05:49,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 244 transitions. [2023-11-23 16:05:49,512 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 244 transitions. Word has length 23 [2023-11-23 16:05:49,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:49,513 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 244 transitions. [2023-11-23 16:05:49,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:49,513 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 244 transitions. [2023-11-23 16:05:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 16:05:49,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:49,514 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:49,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:49,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:49,717 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:49,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:49,717 INFO L85 PathProgramCache]: Analyzing trace with hash -953953708, now seen corresponding path program 1 times [2023-11-23 16:05:49,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:49,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839888524] [2023-11-23 16:05:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:49,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:49,722 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:49,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182376231] [2023-11-23 16:05:49,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:49,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:49,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:49,723 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) [2023-11-23 16:05:49,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 16:05:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:49,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:05:49,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:49,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:49,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:49,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839888524] [2023-11-23 16:05:49,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:49,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182376231] [2023-11-23 16:05:49,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182376231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:49,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:49,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:49,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64987072] [2023-11-23 16:05:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:49,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:49,767 INFO L87 Difference]: Start difference. First operand 195 states and 244 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:49,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:49,877 INFO L93 Difference]: Finished difference Result 257 states and 273 transitions. [2023-11-23 16:05:49,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:05:49,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-23 16:05:49,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:49,878 INFO L225 Difference]: With dead ends: 257 [2023-11-23 16:05:49,878 INFO L226 Difference]: Without dead ends: 255 [2023-11-23 16:05:49,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:49,879 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 194 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:49,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 251 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:49,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-23 16:05:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 195. [2023-11-23 16:05:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.6041666666666667) internal successors, (231), 187 states have internal predecessors, (231), 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) [2023-11-23 16:05:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2023-11-23 16:05:49,885 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 24 [2023-11-23 16:05:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:49,885 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2023-11-23 16:05:49,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2023-11-23 16:05:49,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 16:05:49,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:49,885 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:49,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:50,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 16:05:50,086 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:50,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:50,086 INFO L85 PathProgramCache]: Analyzing trace with hash 492206192, now seen corresponding path program 1 times [2023-11-23 16:05:50,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:50,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809400496] [2023-11-23 16:05:50,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:50,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:50,091 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:50,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928368107] [2023-11-23 16:05:50,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:50,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:50,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:50,092 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) [2023-11-23 16:05:50,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 16:05:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:50,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:05:50,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:50,140 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:50,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:50,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809400496] [2023-11-23 16:05:50,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:50,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928368107] [2023-11-23 16:05:50,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928368107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:50,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:50,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:50,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156176075] [2023-11-23 16:05:50,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:50,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:50,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:50,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:50,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:50,144 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:50,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:50,239 INFO L93 Difference]: Finished difference Result 255 states and 270 transitions. [2023-11-23 16:05:50,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:05:50,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-23 16:05:50,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:50,241 INFO L225 Difference]: With dead ends: 255 [2023-11-23 16:05:50,241 INFO L226 Difference]: Without dead ends: 253 [2023-11-23 16:05:50,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:50,241 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 189 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:50,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 257 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-23 16:05:50,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 195. [2023-11-23 16:05:50,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.5833333333333333) internal successors, (228), 187 states have internal predecessors, (228), 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) [2023-11-23 16:05:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 238 transitions. [2023-11-23 16:05:50,247 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 238 transitions. Word has length 25 [2023-11-23 16:05:50,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:50,247 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 238 transitions. [2023-11-23 16:05:50,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:50,247 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 238 transitions. [2023-11-23 16:05:50,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 16:05:50,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:50,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:50,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:50,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:50,459 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:50,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:50,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1921477162, now seen corresponding path program 1 times [2023-11-23 16:05:50,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:50,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530587066] [2023-11-23 16:05:50,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:50,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:50,464 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:50,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624399834] [2023-11-23 16:05:50,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:50,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:50,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:50,465 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) [2023-11-23 16:05:50,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 16:05:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:50,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:05:50,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:50,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:50,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:50,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:50,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530587066] [2023-11-23 16:05:50,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:50,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624399834] [2023-11-23 16:05:50,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624399834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:50,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:50,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 16:05:50,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918381211] [2023-11-23 16:05:50,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:50,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 16:05:50,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:50,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 16:05:50,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:50,520 INFO L87 Difference]: Start difference. First operand 195 states and 238 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:50,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:50,629 INFO L93 Difference]: Finished difference Result 264 states and 303 transitions. [2023-11-23 16:05:50,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 16:05:50,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-23 16:05:50,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:50,631 INFO L225 Difference]: With dead ends: 264 [2023-11-23 16:05:50,631 INFO L226 Difference]: Without dead ends: 262 [2023-11-23 16:05:50,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 16:05:50,631 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 233 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:50,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 253 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:50,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-23 16:05:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 198. [2023-11-23 16:05:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 147 states have (on average 1.564625850340136) internal successors, (230), 190 states have internal predecessors, (230), 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) [2023-11-23 16:05:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 240 transitions. [2023-11-23 16:05:50,638 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 240 transitions. Word has length 26 [2023-11-23 16:05:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:50,639 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 240 transitions. [2023-11-23 16:05:50,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:50,639 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 240 transitions. [2023-11-23 16:05:50,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 16:05:50,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:50,639 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:50,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:50,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:50,855 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:50,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:50,856 INFO L85 PathProgramCache]: Analyzing trace with hash 563750194, now seen corresponding path program 1 times [2023-11-23 16:05:50,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:50,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128824137] [2023-11-23 16:05:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:50,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:50,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:50,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457329054] [2023-11-23 16:05:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:50,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:50,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:50,861 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) [2023-11-23 16:05:50,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 16:05:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:50,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:05:50,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:50,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:50,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:50,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128824137] [2023-11-23 16:05:50,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:50,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457329054] [2023-11-23 16:05:50,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457329054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:50,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:50,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 16:05:50,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569002144] [2023-11-23 16:05:50,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:50,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 16:05:50,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:50,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 16:05:50,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:50,934 INFO L87 Difference]: Start difference. First operand 198 states and 240 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:51,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:51,055 INFO L93 Difference]: Finished difference Result 256 states and 269 transitions. [2023-11-23 16:05:51,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 16:05:51,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-23 16:05:51,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:51,057 INFO L225 Difference]: With dead ends: 256 [2023-11-23 16:05:51,057 INFO L226 Difference]: Without dead ends: 254 [2023-11-23 16:05:51,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 16:05:51,057 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 180 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:51,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 324 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-23 16:05:51,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 198. [2023-11-23 16:05:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 147 states have (on average 1.5442176870748299) internal successors, (227), 190 states have internal predecessors, (227), 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) [2023-11-23 16:05:51,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 237 transitions. [2023-11-23 16:05:51,063 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 237 transitions. Word has length 27 [2023-11-23 16:05:51,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:51,063 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 237 transitions. [2023-11-23 16:05:51,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:51,063 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 237 transitions. [2023-11-23 16:05:51,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 16:05:51,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:51,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:51,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:51,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 16:05:51,275 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:51,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:51,276 INFO L85 PathProgramCache]: Analyzing trace with hash 296386904, now seen corresponding path program 1 times [2023-11-23 16:05:51,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:51,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933876401] [2023-11-23 16:05:51,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:51,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:51,280 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:51,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241382608] [2023-11-23 16:05:51,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:51,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:51,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:51,281 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) [2023-11-23 16:05:51,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 16:05:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:51,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 16:05:51,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:51,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:51,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:51,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:51,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933876401] [2023-11-23 16:05:51,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:51,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241382608] [2023-11-23 16:05:51,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241382608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:51,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:51,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 16:05:51,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385107647] [2023-11-23 16:05:51,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:51,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 16:05:51,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:51,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 16:05:51,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-23 16:05:51,386 INFO L87 Difference]: Start difference. First operand 198 states and 237 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:51,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:51,577 INFO L93 Difference]: Finished difference Result 264 states and 297 transitions. [2023-11-23 16:05:51,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 16:05:51,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-23 16:05:51,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:51,578 INFO L225 Difference]: With dead ends: 264 [2023-11-23 16:05:51,578 INFO L226 Difference]: Without dead ends: 262 [2023-11-23 16:05:51,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-23 16:05:51,579 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 346 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:51,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 208 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:05:51,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-23 16:05:51,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 200. [2023-11-23 16:05:51,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 149 states have (on average 1.5302013422818792) internal successors, (228), 192 states have internal predecessors, (228), 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) [2023-11-23 16:05:51,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 238 transitions. [2023-11-23 16:05:51,585 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 238 transitions. Word has length 28 [2023-11-23 16:05:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:51,585 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 238 transitions. [2023-11-23 16:05:51,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 238 transitions. [2023-11-23 16:05:51,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 16:05:51,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:51,586 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:51,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-23 16:05:51,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 16:05:51,798 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:51,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:51,798 INFO L85 PathProgramCache]: Analyzing trace with hash 598059508, now seen corresponding path program 1 times [2023-11-23 16:05:51,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:51,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538482423] [2023-11-23 16:05:51,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:51,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:51,803 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:51,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929233666] [2023-11-23 16:05:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:51,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:51,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:51,804 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) [2023-11-23 16:05:51,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 16:05:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:51,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 16:05:51,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:51,920 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:51,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:51,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538482423] [2023-11-23 16:05:51,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929233666] [2023-11-23 16:05:51,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929233666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:51,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:51,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 16:05:51,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709368556] [2023-11-23 16:05:51,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:51,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 16:05:51,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:51,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 16:05:51,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-23 16:05:51,922 INFO L87 Difference]: Start difference. First operand 200 states and 238 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:52,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:52,122 INFO L93 Difference]: Finished difference Result 262 states and 295 transitions. [2023-11-23 16:05:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 16:05:52,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-11-23 16:05:52,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:52,123 INFO L225 Difference]: With dead ends: 262 [2023-11-23 16:05:52,123 INFO L226 Difference]: Without dead ends: 260 [2023-11-23 16:05:52,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-23 16:05:52,124 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 407 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:52,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 190 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:05:52,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-23 16:05:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 201. [2023-11-23 16:05:52,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 150 states have (on average 1.52) internal successors, (228), 193 states have internal predecessors, (228), 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) [2023-11-23 16:05:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 238 transitions. [2023-11-23 16:05:52,129 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 238 transitions. Word has length 29 [2023-11-23 16:05:52,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:52,130 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 238 transitions. [2023-11-23 16:05:52,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:52,130 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 238 transitions. [2023-11-23 16:05:52,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 16:05:52,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:52,130 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:52,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:52,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 16:05:52,331 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:52,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1266536540, now seen corresponding path program 1 times [2023-11-23 16:05:52,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:52,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338345391] [2023-11-23 16:05:52,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:52,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:52,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:52,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606407811] [2023-11-23 16:05:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:52,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:52,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:52,339 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) [2023-11-23 16:05:52,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 16:05:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:52,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 16:05:52,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:52,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:52,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:52,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338345391] [2023-11-23 16:05:52,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:52,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606407811] [2023-11-23 16:05:52,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606407811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:52,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:52,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 16:05:52,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116875297] [2023-11-23 16:05:52,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:52,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 16:05:52,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:52,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 16:05:52,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 16:05:52,491 INFO L87 Difference]: Start difference. First operand 201 states and 238 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:52,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:52,831 INFO L93 Difference]: Finished difference Result 260 states and 293 transitions. [2023-11-23 16:05:52,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 16:05:52,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2023-11-23 16:05:52,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:52,832 INFO L225 Difference]: With dead ends: 260 [2023-11-23 16:05:52,833 INFO L226 Difference]: Without dead ends: 258 [2023-11-23 16:05:52,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-23 16:05:52,833 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 435 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:52,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 140 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:05:52,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-11-23 16:05:52,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 204. [2023-11-23 16:05:52,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 153 states have (on average 1.5032679738562091) internal successors, (230), 196 states have internal predecessors, (230), 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) [2023-11-23 16:05:52,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 240 transitions. [2023-11-23 16:05:52,839 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 240 transitions. Word has length 32 [2023-11-23 16:05:52,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:52,839 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 240 transitions. [2023-11-23 16:05:52,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:52,839 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 240 transitions. [2023-11-23 16:05:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 16:05:52,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:52,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:52,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:53,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 16:05:53,051 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:53,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash 607927160, now seen corresponding path program 1 times [2023-11-23 16:05:53,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:53,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169378668] [2023-11-23 16:05:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:53,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:53,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:53,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008383296] [2023-11-23 16:05:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:53,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:53,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:53,056 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) [2023-11-23 16:05:53,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 16:05:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:53,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 16:05:53,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:53,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:53,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:53,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169378668] [2023-11-23 16:05:53,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:53,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008383296] [2023-11-23 16:05:53,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008383296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:53,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:53,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 16:05:53,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532533919] [2023-11-23 16:05:53,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:53,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 16:05:53,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:53,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 16:05:53,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 16:05:53,190 INFO L87 Difference]: Start difference. First operand 204 states and 240 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:53,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:53,434 INFO L93 Difference]: Finished difference Result 258 states and 291 transitions. [2023-11-23 16:05:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 16:05:53,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-11-23 16:05:53,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:53,436 INFO L225 Difference]: With dead ends: 258 [2023-11-23 16:05:53,436 INFO L226 Difference]: Without dead ends: 256 [2023-11-23 16:05:53,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-23 16:05:53,436 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 428 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:53,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 140 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:05:53,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-23 16:05:53,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 205. [2023-11-23 16:05:53,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 154 states have (on average 1.4935064935064934) internal successors, (230), 197 states have internal predecessors, (230), 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) [2023-11-23 16:05:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 240 transitions. [2023-11-23 16:05:53,441 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 240 transitions. Word has length 33 [2023-11-23 16:05:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:53,441 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 240 transitions. [2023-11-23 16:05:53,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 16:05:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 240 transitions. [2023-11-23 16:05:53,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 16:05:53,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:53,442 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:53,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:53,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 16:05:53,643 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:53,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:53,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1665872862, now seen corresponding path program 1 times [2023-11-23 16:05:53,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:53,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208072996] [2023-11-23 16:05:53,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:53,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:53,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:53,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307236456] [2023-11-23 16:05:53,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:53,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:53,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:53,650 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) [2023-11-23 16:05:53,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 16:05:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:53,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:05:53,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:53,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:53,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:53,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208072996] [2023-11-23 16:05:53,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:53,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307236456] [2023-11-23 16:05:53,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307236456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:53,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:53,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:53,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194010996] [2023-11-23 16:05:53,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:53,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:53,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:53,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:53,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:53,720 INFO L87 Difference]: Start difference. First operand 205 states and 240 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:53,816 INFO L93 Difference]: Finished difference Result 232 states and 265 transitions. [2023-11-23 16:05:53,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:05:53,816 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-23 16:05:53,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:53,817 INFO L225 Difference]: With dead ends: 232 [2023-11-23 16:05:53,817 INFO L226 Difference]: Without dead ends: 230 [2023-11-23 16:05:53,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:53,839 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 78 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:53,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 128 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:53,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-11-23 16:05:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 206. [2023-11-23 16:05:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 155 states have (on average 1.4838709677419355) internal successors, (230), 198 states have internal predecessors, (230), 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) [2023-11-23 16:05:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 240 transitions. [2023-11-23 16:05:53,845 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 240 transitions. Word has length 34 [2023-11-23 16:05:53,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:53,845 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 240 transitions. [2023-11-23 16:05:53,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:53,845 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 240 transitions. [2023-11-23 16:05:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 16:05:53,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:53,845 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:53,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:54,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 16:05:54,071 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:54,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:54,072 INFO L85 PathProgramCache]: Analyzing trace with hash 102451258, now seen corresponding path program 1 times [2023-11-23 16:05:54,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:54,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183871825] [2023-11-23 16:05:54,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:54,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:54,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:54,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961795960] [2023-11-23 16:05:54,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:54,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:54,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:54,077 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) [2023-11-23 16:05:54,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 16:05:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:54,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:05:54,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:54,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:54,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:54,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183871825] [2023-11-23 16:05:54,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:54,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961795960] [2023-11-23 16:05:54,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961795960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:54,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:54,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:54,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123363005] [2023-11-23 16:05:54,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:54,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:54,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:54,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:54,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:54,140 INFO L87 Difference]: Start difference. First operand 206 states and 240 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:54,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:54,270 INFO L93 Difference]: Finished difference Result 230 states and 263 transitions. [2023-11-23 16:05:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:05:54,270 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2023-11-23 16:05:54,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:54,271 INFO L225 Difference]: With dead ends: 230 [2023-11-23 16:05:54,271 INFO L226 Difference]: Without dead ends: 228 [2023-11-23 16:05:54,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:54,272 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 39 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:54,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 160 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:54,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-11-23 16:05:54,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 207. [2023-11-23 16:05:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 156 states have (on average 1.4743589743589745) internal successors, (230), 199 states have internal predecessors, (230), 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) [2023-11-23 16:05:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 240 transitions. [2023-11-23 16:05:54,277 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 240 transitions. Word has length 35 [2023-11-23 16:05:54,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:54,277 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 240 transitions. [2023-11-23 16:05:54,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 16:05:54,278 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 240 transitions. [2023-11-23 16:05:54,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 16:05:54,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:54,278 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:54,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:54,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:54,488 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:54,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:54,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1145505025, now seen corresponding path program 1 times [2023-11-23 16:05:54,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:54,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2325153] [2023-11-23 16:05:54,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:54,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:54,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:54,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [705004409] [2023-11-23 16:05:54,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:54,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:54,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:54,494 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) [2023-11-23 16:05:54,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 16:05:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:54,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:05:54,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:54,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:54,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:54,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2325153] [2023-11-23 16:05:54,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:54,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705004409] [2023-11-23 16:05:54,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705004409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:54,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:54,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 16:05:54,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381020583] [2023-11-23 16:05:54,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:54,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 16:05:54,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:54,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 16:05:54,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:54,604 INFO L87 Difference]: Start difference. First operand 207 states and 240 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:54,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:54,701 INFO L93 Difference]: Finished difference Result 228 states and 261 transitions. [2023-11-23 16:05:54,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:05:54,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2023-11-23 16:05:54,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:54,703 INFO L225 Difference]: With dead ends: 228 [2023-11-23 16:05:54,703 INFO L226 Difference]: Without dead ends: 226 [2023-11-23 16:05:54,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 16:05:54,704 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 195 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:54,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 125 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:54,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-23 16:05:54,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 216. [2023-11-23 16:05:54,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 165 states have (on average 1.4545454545454546) internal successors, (240), 208 states have internal predecessors, (240), 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) [2023-11-23 16:05:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 250 transitions. [2023-11-23 16:05:54,709 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 250 transitions. Word has length 45 [2023-11-23 16:05:54,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:54,709 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 250 transitions. [2023-11-23 16:05:54,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:54,709 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 250 transitions. [2023-11-23 16:05:54,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-23 16:05:54,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:54,710 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:54,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-23 16:05:54,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:54,921 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:54,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:54,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1150917302, now seen corresponding path program 1 times [2023-11-23 16:05:54,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:54,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252101737] [2023-11-23 16:05:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:54,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:54,925 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:54,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [587176316] [2023-11-23 16:05:54,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:54,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:54,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:54,927 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) [2023-11-23 16:05:54,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 16:05:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:54,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:05:54,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:55,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:55,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:55,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:55,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252101737] [2023-11-23 16:05:55,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:55,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587176316] [2023-11-23 16:05:55,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587176316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:55,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:55,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 16:05:55,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838349992] [2023-11-23 16:05:55,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:55,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 16:05:55,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:55,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 16:05:55,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:55,005 INFO L87 Difference]: Start difference. First operand 216 states and 250 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:55,138 INFO L93 Difference]: Finished difference Result 226 states and 259 transitions. [2023-11-23 16:05:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:05:55,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2023-11-23 16:05:55,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:55,139 INFO L225 Difference]: With dead ends: 226 [2023-11-23 16:05:55,139 INFO L226 Difference]: Without dead ends: 225 [2023-11-23 16:05:55,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 16:05:55,140 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 192 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:55,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 143 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:55,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-11-23 16:05:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 217. [2023-11-23 16:05:55,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 166 states have (on average 1.4518072289156627) internal successors, (241), 209 states have internal predecessors, (241), 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) [2023-11-23 16:05:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 251 transitions. [2023-11-23 16:05:55,146 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 251 transitions. Word has length 46 [2023-11-23 16:05:55,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:55,147 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 251 transitions. [2023-11-23 16:05:55,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 251 transitions. [2023-11-23 16:05:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 16:05:55,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:55,147 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:55,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:55,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:55,359 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:55,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:55,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2070039148, now seen corresponding path program 1 times [2023-11-23 16:05:55,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:55,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582395789] [2023-11-23 16:05:55,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:55,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:55,366 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:55,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630947452] [2023-11-23 16:05:55,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:55,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:55,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:55,367 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) [2023-11-23 16:05:55,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 16:05:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:55,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:05:55,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:55,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:55,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:55,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:55,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582395789] [2023-11-23 16:05:55,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:55,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630947452] [2023-11-23 16:05:55,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630947452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:55,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:55,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:55,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447804901] [2023-11-23 16:05:55,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:55,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:55,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:55,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:55,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:55,439 INFO L87 Difference]: Start difference. First operand 217 states and 251 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:55,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:55,555 INFO L93 Difference]: Finished difference Result 217 states and 251 transitions. [2023-11-23 16:05:55,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:05:55,555 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2023-11-23 16:05:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:55,556 INFO L225 Difference]: With dead ends: 217 [2023-11-23 16:05:55,556 INFO L226 Difference]: Without dead ends: 216 [2023-11-23 16:05:55,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:55,557 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 78 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:55,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 217 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:55,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-23 16:05:55,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2023-11-23 16:05:55,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 166 states have (on average 1.4397590361445782) internal successors, (239), 208 states have internal predecessors, (239), 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) [2023-11-23 16:05:55,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 249 transitions. [2023-11-23 16:05:55,562 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 249 transitions. Word has length 48 [2023-11-23 16:05:55,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:55,562 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 249 transitions. [2023-11-23 16:05:55,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:55,562 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 249 transitions. [2023-11-23 16:05:55,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 16:05:55,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:55,563 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:55,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:55,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:55,774 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:55,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:55,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1643991946, now seen corresponding path program 1 times [2023-11-23 16:05:55,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:55,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485140907] [2023-11-23 16:05:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:55,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:55,780 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:55,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424256818] [2023-11-23 16:05:55,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:55,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:55,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:55,781 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) [2023-11-23 16:05:55,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 16:05:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:55,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:05:55,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:55,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:55,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:55,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:55,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485140907] [2023-11-23 16:05:55,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:55,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424256818] [2023-11-23 16:05:55,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424256818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:55,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:55,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 16:05:55,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557300843] [2023-11-23 16:05:55,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:55,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 16:05:55,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:55,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 16:05:55,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:55,924 INFO L87 Difference]: Start difference. First operand 216 states and 249 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:56,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:56,025 INFO L93 Difference]: Finished difference Result 224 states and 256 transitions. [2023-11-23 16:05:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:05:56,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2023-11-23 16:05:56,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:56,027 INFO L225 Difference]: With dead ends: 224 [2023-11-23 16:05:56,027 INFO L226 Difference]: Without dead ends: 223 [2023-11-23 16:05:56,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:56,028 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 160 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:56,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 113 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:56,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-23 16:05:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 217. [2023-11-23 16:05:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 167 states have (on average 1.437125748502994) internal successors, (240), 209 states have internal predecessors, (240), 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) [2023-11-23 16:05:56,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 250 transitions. [2023-11-23 16:05:56,034 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 250 transitions. Word has length 48 [2023-11-23 16:05:56,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:56,034 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 250 transitions. [2023-11-23 16:05:56,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:56,034 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 250 transitions. [2023-11-23 16:05:56,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 16:05:56,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:56,035 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:56,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:56,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:56,246 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:56,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:56,247 INFO L85 PathProgramCache]: Analyzing trace with hash -253295723, now seen corresponding path program 1 times [2023-11-23 16:05:56,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:56,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359313450] [2023-11-23 16:05:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:56,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:56,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:56,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533461028] [2023-11-23 16:05:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:56,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:56,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:56,255 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) [2023-11-23 16:05:56,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 16:05:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:56,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:05:56,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:56,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:56,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:56,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:56,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359313450] [2023-11-23 16:05:56,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:56,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533461028] [2023-11-23 16:05:56,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533461028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:56,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:56,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:56,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147312563] [2023-11-23 16:05:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:56,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:56,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:56,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:56,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:56,313 INFO L87 Difference]: Start difference. First operand 217 states and 250 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:56,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:56,340 INFO L93 Difference]: Finished difference Result 234 states and 267 transitions. [2023-11-23 16:05:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:05:56,340 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2023-11-23 16:05:56,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:56,341 INFO L225 Difference]: With dead ends: 234 [2023-11-23 16:05:56,341 INFO L226 Difference]: Without dead ends: 233 [2023-11-23 16:05:56,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:56,342 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 37 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:56,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 317 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:05:56,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-23 16:05:56,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 225. [2023-11-23 16:05:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 175 states have (on average 1.4285714285714286) internal successors, (250), 217 states have internal predecessors, (250), 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) [2023-11-23 16:05:56,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 260 transitions. [2023-11-23 16:05:56,349 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 260 transitions. Word has length 49 [2023-11-23 16:05:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:56,349 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 260 transitions. [2023-11-23 16:05:56,350 INFO L496 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:56,350 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 260 transitions. [2023-11-23 16:05:56,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 16:05:56,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:56,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:56,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:56,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:56,562 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:56,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:56,562 INFO L85 PathProgramCache]: Analyzing trace with hash 575857347, now seen corresponding path program 1 times [2023-11-23 16:05:56,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:56,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287502618] [2023-11-23 16:05:56,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:56,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:56,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:56,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907073042] [2023-11-23 16:05:56,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:56,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:56,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:56,568 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) [2023-11-23 16:05:56,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 16:05:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:56,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:05:56,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:56,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:56,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:56,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287502618] [2023-11-23 16:05:56,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:56,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907073042] [2023-11-23 16:05:56,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907073042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:56,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:56,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:56,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579052393] [2023-11-23 16:05:56,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:56,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:56,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:56,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:56,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:56,634 INFO L87 Difference]: Start difference. First operand 225 states and 260 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:56,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:56,722 INFO L93 Difference]: Finished difference Result 225 states and 260 transitions. [2023-11-23 16:05:56,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:05:56,722 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2023-11-23 16:05:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:56,723 INFO L225 Difference]: With dead ends: 225 [2023-11-23 16:05:56,723 INFO L226 Difference]: Without dead ends: 223 [2023-11-23 16:05:56,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:56,723 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 75 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:56,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 213 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:05:56,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-23 16:05:56,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2023-11-23 16:05:56,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 175 states have (on average 1.4114285714285715) internal successors, (247), 215 states have internal predecessors, (247), 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) [2023-11-23 16:05:56,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 257 transitions. [2023-11-23 16:05:56,730 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 257 transitions. Word has length 49 [2023-11-23 16:05:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:56,730 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 257 transitions. [2023-11-23 16:05:56,730 INFO L496 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 257 transitions. [2023-11-23 16:05:56,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-23 16:05:56,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:56,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:56,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:56,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 16:05:56,936 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:56,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:56,936 INFO L85 PathProgramCache]: Analyzing trace with hash 671708696, now seen corresponding path program 1 times [2023-11-23 16:05:56,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:56,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153617421] [2023-11-23 16:05:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:56,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:56,941 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:56,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961284618] [2023-11-23 16:05:56,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:56,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:56,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:56,945 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) [2023-11-23 16:05:56,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 16:05:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:56,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:05:56,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:57,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:57,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:57,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153617421] [2023-11-23 16:05:57,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:57,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961284618] [2023-11-23 16:05:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961284618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:57,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:57,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:05:57,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604683885] [2023-11-23 16:05:57,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:57,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:05:57,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:57,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:05:57,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:05:57,011 INFO L87 Difference]: Start difference. First operand 223 states and 257 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:57,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:57,042 INFO L93 Difference]: Finished difference Result 263 states and 271 transitions. [2023-11-23 16:05:57,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:05:57,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2023-11-23 16:05:57,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:57,044 INFO L225 Difference]: With dead ends: 263 [2023-11-23 16:05:57,044 INFO L226 Difference]: Without dead ends: 262 [2023-11-23 16:05:57,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:05:57,045 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 61 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:57,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 341 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:05:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-23 16:05:57,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 231. [2023-11-23 16:05:57,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 183 states have (on average 1.3989071038251366) internal successors, (256), 223 states have internal predecessors, (256), 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) [2023-11-23 16:05:57,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 266 transitions. [2023-11-23 16:05:57,053 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 266 transitions. Word has length 50 [2023-11-23 16:05:57,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:57,054 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 266 transitions. [2023-11-23 16:05:57,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:57,054 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 266 transitions. [2023-11-23 16:05:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-23 16:05:57,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:57,054 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:57,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:57,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-23 16:05:57,266 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:57,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:57,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1395947735, now seen corresponding path program 1 times [2023-11-23 16:05:57,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:57,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900790754] [2023-11-23 16:05:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:57,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:57,270 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:57,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264406194] [2023-11-23 16:05:57,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:57,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:57,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:57,271 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) [2023-11-23 16:05:57,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 16:05:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:57,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 16:05:57,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:05:57,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:05:57,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:57,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900790754] [2023-11-23 16:05:57,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:57,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264406194] [2023-11-23 16:05:57,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264406194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:05:57,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:05:57,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 16:05:57,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882202605] [2023-11-23 16:05:57,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:57,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:05:57,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:05:57,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:05:57,449 INFO L87 Difference]: Start difference. First operand 231 states and 266 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:57,654 INFO L93 Difference]: Finished difference Result 237 states and 271 transitions. [2023-11-23 16:05:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 16:05:57,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2023-11-23 16:05:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:57,656 INFO L225 Difference]: With dead ends: 237 [2023-11-23 16:05:57,656 INFO L226 Difference]: Without dead ends: 235 [2023-11-23 16:05:57,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-23 16:05:57,656 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 241 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:57,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 342 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:05:57,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-11-23 16:05:57,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 229. [2023-11-23 16:05:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 183 states have (on average 1.3770491803278688) internal successors, (252), 221 states have internal predecessors, (252), 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) [2023-11-23 16:05:57,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 262 transitions. [2023-11-23 16:05:57,662 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 262 transitions. Word has length 51 [2023-11-23 16:05:57,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:57,662 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 262 transitions. [2023-11-23 16:05:57,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:05:57,663 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 262 transitions. [2023-11-23 16:05:57,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-23 16:05:57,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:57,663 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:57,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:57,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-23 16:05:57,874 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:57,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:57,875 INFO L85 PathProgramCache]: Analyzing trace with hash 324706881, now seen corresponding path program 1 times [2023-11-23 16:05:57,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:57,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122767444] [2023-11-23 16:05:57,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:57,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:57,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:57,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663735492] [2023-11-23 16:05:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:57,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:57,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:57,881 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) [2023-11-23 16:05:57,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 16:05:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:57,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 16:05:57,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:58,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:05:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:58,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:58,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122767444] [2023-11-23 16:05:58,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:58,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663735492] [2023-11-23 16:05:58,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663735492] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 16:05:58,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:05:58,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2023-11-23 16:05:58,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076189882] [2023-11-23 16:05:58,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:05:58,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:05:58,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:58,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:05:58,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:05:58,291 INFO L87 Difference]: Start difference. First operand 229 states and 262 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:58,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:58,532 INFO L93 Difference]: Finished difference Result 332 states and 367 transitions. [2023-11-23 16:05:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 16:05:58,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2023-11-23 16:05:58,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:58,534 INFO L225 Difference]: With dead ends: 332 [2023-11-23 16:05:58,534 INFO L226 Difference]: Without dead ends: 330 [2023-11-23 16:05:58,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-23 16:05:58,534 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 433 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:58,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 356 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:05:58,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-23 16:05:58,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 270. [2023-11-23 16:05:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 223 states have (on average 1.4080717488789238) internal successors, (314), 261 states have internal predecessors, (314), 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) [2023-11-23 16:05:58,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 326 transitions. [2023-11-23 16:05:58,540 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 326 transitions. Word has length 52 [2023-11-23 16:05:58,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:58,541 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 326 transitions. [2023-11-23 16:05:58,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:05:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 326 transitions. [2023-11-23 16:05:58,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 16:05:58,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:58,543 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:58,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:58,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:58,754 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:58,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:58,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1076398939, now seen corresponding path program 1 times [2023-11-23 16:05:58,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:58,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628750442] [2023-11-23 16:05:58,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:58,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:58,760 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:58,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [686342384] [2023-11-23 16:05:58,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:58,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:58,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:58,762 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) [2023-11-23 16:05:58,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 16:05:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:58,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 16:05:58,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:05:58,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:05:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:05:59,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:05:59,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628750442] [2023-11-23 16:05:59,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:05:59,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686342384] [2023-11-23 16:05:59,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686342384] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:05:59,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:05:59,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-23 16:05:59,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956029242] [2023-11-23 16:05:59,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:05:59,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 16:05:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:05:59,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 16:05:59,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-23 16:05:59,043 INFO L87 Difference]: Start difference. First operand 270 states and 326 transitions. Second operand has 15 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 16:05:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:05:59,537 INFO L93 Difference]: Finished difference Result 442 states and 528 transitions. [2023-11-23 16:05:59,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 16:05:59,537 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 55 [2023-11-23 16:05:59,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:05:59,538 INFO L225 Difference]: With dead ends: 442 [2023-11-23 16:05:59,538 INFO L226 Difference]: Without dead ends: 436 [2023-11-23 16:05:59,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-11-23 16:05:59,539 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 969 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 16:05:59,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 284 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 16:05:59,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-11-23 16:05:59,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 322. [2023-11-23 16:05:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 275 states have (on average 1.3963636363636365) internal successors, (384), 311 states have internal predecessors, (384), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 16:05:59,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 400 transitions. [2023-11-23 16:05:59,547 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 400 transitions. Word has length 55 [2023-11-23 16:05:59,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:05:59,548 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 400 transitions. [2023-11-23 16:05:59,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 16:05:59,549 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 400 transitions. [2023-11-23 16:05:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 16:05:59,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:05:59,549 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:05:59,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-23 16:05:59,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-23 16:05:59,761 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:05:59,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:05:59,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1477004917, now seen corresponding path program 1 times [2023-11-23 16:05:59,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:05:59,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805550802] [2023-11-23 16:05:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:59,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:05:59,767 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:05:59,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962492795] [2023-11-23 16:05:59,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:05:59,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:05:59,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:05:59,772 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:05:59,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-23 16:05:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:05:59,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 16:05:59,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:05:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:05:59,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:00,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:00,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805550802] [2023-11-23 16:06:00,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:00,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962492795] [2023-11-23 16:06:00,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962492795] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:06:00,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:06:00,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-23 16:06:00,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311761207] [2023-11-23 16:06:00,015 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:00,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 16:06:00,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:00,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 16:06:00,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-23 16:06:00,016 INFO L87 Difference]: Start difference. First operand 322 states and 400 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:00,251 INFO L93 Difference]: Finished difference Result 353 states and 408 transitions. [2023-11-23 16:06:00,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 16:06:00,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2023-11-23 16:06:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:00,252 INFO L225 Difference]: With dead ends: 353 [2023-11-23 16:06:00,252 INFO L226 Difference]: Without dead ends: 351 [2023-11-23 16:06:00,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-23 16:06:00,253 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 239 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:00,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 363 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:06:00,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-23 16:06:00,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 320. [2023-11-23 16:06:00,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 275 states have (on average 1.3745454545454545) internal successors, (378), 309 states have internal predecessors, (378), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 16:06:00,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 394 transitions. [2023-11-23 16:06:00,262 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 394 transitions. Word has length 57 [2023-11-23 16:06:00,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:00,262 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 394 transitions. [2023-11-23 16:06:00,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:00,262 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 394 transitions. [2023-11-23 16:06:00,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 16:06:00,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:00,263 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:00,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:00,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:00,463 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:00,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:00,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1457487889, now seen corresponding path program 1 times [2023-11-23 16:06:00,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:00,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761563314] [2023-11-23 16:06:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:00,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:00,468 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:00,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618754633] [2023-11-23 16:06:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:00,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:00,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:00,471 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:00,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-23 16:06:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:00,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 16:06:00,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:06:00,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:00,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:00,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761563314] [2023-11-23 16:06:00,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:00,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618754633] [2023-11-23 16:06:00,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618754633] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:06:00,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:06:00,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-23 16:06:00,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936134805] [2023-11-23 16:06:00,829 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:00,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 16:06:00,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:00,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 16:06:00,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-23 16:06:00,830 INFO L87 Difference]: Start difference. First operand 320 states and 394 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:06:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:01,078 INFO L93 Difference]: Finished difference Result 480 states and 556 transitions. [2023-11-23 16:06:01,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 16:06:01,078 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2023-11-23 16:06:01,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:01,080 INFO L225 Difference]: With dead ends: 480 [2023-11-23 16:06:01,080 INFO L226 Difference]: Without dead ends: 478 [2023-11-23 16:06:01,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-23 16:06:01,081 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 348 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:01,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 362 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:06:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-11-23 16:06:01,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 392. [2023-11-23 16:06:01,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 345 states have (on average 1.4144927536231884) internal successors, (488), 379 states have internal predecessors, (488), 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) [2023-11-23 16:06:01,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 508 transitions. [2023-11-23 16:06:01,093 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 508 transitions. Word has length 58 [2023-11-23 16:06:01,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:01,093 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 508 transitions. [2023-11-23 16:06:01,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 16:06:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 508 transitions. [2023-11-23 16:06:01,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 16:06:01,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:01,094 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:01,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:01,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-23 16:06:01,300 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:01,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:01,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1744077345, now seen corresponding path program 1 times [2023-11-23 16:06:01,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:01,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607547432] [2023-11-23 16:06:01,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:01,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:01,306 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:01,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476388906] [2023-11-23 16:06:01,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:01,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:01,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:01,321 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:01,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-23 16:06:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:01,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:06:01,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:01,387 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-23 16:06:01,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-23 16:06:01,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:01,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607547432] [2023-11-23 16:06:01,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:01,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476388906] [2023-11-23 16:06:01,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476388906] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:01,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:01,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-23 16:06:01,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139410298] [2023-11-23 16:06:01,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:01,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 16:06:01,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:01,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 16:06:01,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 16:06:01,429 INFO L87 Difference]: Start difference. First operand 392 states and 508 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:01,563 INFO L93 Difference]: Finished difference Result 436 states and 536 transitions. [2023-11-23 16:06:01,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 16:06:01,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-11-23 16:06:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:01,568 INFO L225 Difference]: With dead ends: 436 [2023-11-23 16:06:01,569 INFO L226 Difference]: Without dead ends: 434 [2023-11-23 16:06:01,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:06:01,570 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 277 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:01,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 230 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:06:01,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-23 16:06:01,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 392. [2023-11-23 16:06:01,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 345 states have (on average 1.4057971014492754) internal successors, (485), 379 states have internal predecessors, (485), 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) [2023-11-23 16:06:01,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 505 transitions. [2023-11-23 16:06:01,585 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 505 transitions. Word has length 59 [2023-11-23 16:06:01,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:01,586 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 505 transitions. [2023-11-23 16:06:01,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:01,586 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 505 transitions. [2023-11-23 16:06:01,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 16:06:01,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:01,586 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-11-23 16:06:01,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:01,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:01,798 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:01,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:01,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1021080799, now seen corresponding path program 1 times [2023-11-23 16:06:01,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:01,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460391501] [2023-11-23 16:06:01,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:01,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:01,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:01,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1797520258] [2023-11-23 16:06:01,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:01,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:01,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:01,805 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:01,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-23 16:06:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:01,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-23 16:06:01,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:02,241 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:02,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:02,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460391501] [2023-11-23 16:06:02,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:02,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797520258] [2023-11-23 16:06:02,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797520258] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:02,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:02,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-23 16:06:02,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251812945] [2023-11-23 16:06:02,460 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:02,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 16:06:02,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:02,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 16:06:02,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-11-23 16:06:02,461 INFO L87 Difference]: Start difference. First operand 392 states and 505 transitions. Second operand has 19 states, 18 states have (on average 5.5) internal successors, (99), 19 states have internal predecessors, (99), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:03,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:03,341 INFO L93 Difference]: Finished difference Result 489 states and 586 transitions. [2023-11-23 16:06:03,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-23 16:06:03,343 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.5) internal successors, (99), 19 states have internal predecessors, (99), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 61 [2023-11-23 16:06:03,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:03,345 INFO L225 Difference]: With dead ends: 489 [2023-11-23 16:06:03,345 INFO L226 Difference]: Without dead ends: 461 [2023-11-23 16:06:03,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-11-23 16:06:03,345 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 968 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:03,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 295 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 16:06:03,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-23 16:06:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 377. [2023-11-23 16:06:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 332 states have (on average 1.3855421686746987) internal successors, (460), 364 states have internal predecessors, (460), 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) [2023-11-23 16:06:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 480 transitions. [2023-11-23 16:06:03,357 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 480 transitions. Word has length 61 [2023-11-23 16:06:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:03,358 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 480 transitions. [2023-11-23 16:06:03,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.5) internal successors, (99), 19 states have internal predecessors, (99), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:03,358 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 480 transitions. [2023-11-23 16:06:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 16:06:03,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:03,358 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:03,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:03,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:03,569 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:03,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:03,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2097599729, now seen corresponding path program 1 times [2023-11-23 16:06:03,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:03,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180997052] [2023-11-23 16:06:03,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:03,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:03,574 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:03,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769750939] [2023-11-23 16:06:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:03,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:03,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:03,575 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:03,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-23 16:06:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:03,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 16:06:03,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:03,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:03,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:03,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:03,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180997052] [2023-11-23 16:06:03,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:03,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769750939] [2023-11-23 16:06:03,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769750939] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:03,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:03,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-11-23 16:06:03,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691702911] [2023-11-23 16:06:03,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:03,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 16:06:03,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:03,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 16:06:03,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-23 16:06:03,862 INFO L87 Difference]: Start difference. First operand 377 states and 480 transitions. Second operand has 13 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:04,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:04,785 INFO L93 Difference]: Finished difference Result 737 states and 856 transitions. [2023-11-23 16:06:04,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 16:06:04,786 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 61 [2023-11-23 16:06:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:04,788 INFO L225 Difference]: With dead ends: 737 [2023-11-23 16:06:04,788 INFO L226 Difference]: Without dead ends: 735 [2023-11-23 16:06:04,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=791, Unknown=0, NotChecked=0, Total=1122 [2023-11-23 16:06:04,788 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 1430 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:04,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 493 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 16:06:04,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-11-23 16:06:04,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 525. [2023-11-23 16:06:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 476 states have (on average 1.415966386554622) internal successors, (674), 508 states have internal predecessors, (674), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 16:06:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 702 transitions. [2023-11-23 16:06:04,805 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 702 transitions. Word has length 61 [2023-11-23 16:06:04,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:04,805 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 702 transitions. [2023-11-23 16:06:04,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:04,806 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 702 transitions. [2023-11-23 16:06:04,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 16:06:04,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:04,806 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:04,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-23 16:06:05,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:05,018 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:05,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:05,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1588733621, now seen corresponding path program 1 times [2023-11-23 16:06:05,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:05,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90122997] [2023-11-23 16:06:05,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:05,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:05,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:05,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762828534] [2023-11-23 16:06:05,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:05,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:05,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:05,025 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:05,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-23 16:06:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:05,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:06:05,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:05,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:05,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:05,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90122997] [2023-11-23 16:06:05,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:05,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762828534] [2023-11-23 16:06:05,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762828534] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:05,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:05,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 16:06:05,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103829010] [2023-11-23 16:06:05,167 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:05,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:06:05,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:05,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:06:05,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:06:05,168 INFO L87 Difference]: Start difference. First operand 525 states and 702 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:05,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:05,408 INFO L93 Difference]: Finished difference Result 525 states and 702 transitions. [2023-11-23 16:06:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 16:06:05,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 62 [2023-11-23 16:06:05,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:05,409 INFO L225 Difference]: With dead ends: 525 [2023-11-23 16:06:05,409 INFO L226 Difference]: Without dead ends: 523 [2023-11-23 16:06:05,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-23 16:06:05,410 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 164 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:05,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 277 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:06:05,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-11-23 16:06:05,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2023-11-23 16:06:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 476 states have (on average 1.388655462184874) internal successors, (661), 506 states have internal predecessors, (661), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 16:06:05,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 689 transitions. [2023-11-23 16:06:05,427 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 689 transitions. Word has length 62 [2023-11-23 16:06:05,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:05,427 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 689 transitions. [2023-11-23 16:06:05,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 689 transitions. [2023-11-23 16:06:05,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 16:06:05,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:05,428 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:05,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:05,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-23 16:06:05,640 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:05,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:05,640 INFO L85 PathProgramCache]: Analyzing trace with hash -601082091, now seen corresponding path program 1 times [2023-11-23 16:06:05,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:05,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765818820] [2023-11-23 16:06:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:05,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:05,644 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:05,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724779105] [2023-11-23 16:06:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:05,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:05,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:05,646 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:05,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-23 16:06:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:05,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-23 16:06:05,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:05,892 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:06:05,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:06:06,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:06,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765818820] [2023-11-23 16:06:06,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:06,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724779105] [2023-11-23 16:06:06,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724779105] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:06,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:06,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-11-23 16:06:06,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330763145] [2023-11-23 16:06:06,001 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:06,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 16:06:06,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 16:06:06,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-23 16:06:06,002 INFO L87 Difference]: Start difference. First operand 523 states and 689 transitions. Second operand has 16 states, 15 states have (on average 6.933333333333334) internal successors, (104), 16 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:06,542 INFO L93 Difference]: Finished difference Result 649 states and 767 transitions. [2023-11-23 16:06:06,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-23 16:06:06,542 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.933333333333334) internal successors, (104), 16 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 62 [2023-11-23 16:06:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:06,544 INFO L225 Difference]: With dead ends: 649 [2023-11-23 16:06:06,544 INFO L226 Difference]: Without dead ends: 647 [2023-11-23 16:06:06,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2023-11-23 16:06:06,545 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 1321 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:06,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 479 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 16:06:06,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-11-23 16:06:06,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 523. [2023-11-23 16:06:06,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 476 states have (on average 1.3739495798319328) internal successors, (654), 506 states have internal predecessors, (654), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 16:06:06,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 682 transitions. [2023-11-23 16:06:06,578 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 682 transitions. Word has length 62 [2023-11-23 16:06:06,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:06,579 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 682 transitions. [2023-11-23 16:06:06,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.933333333333334) internal successors, (104), 16 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:06,579 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 682 transitions. [2023-11-23 16:06:06,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 16:06:06,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:06,579 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:06,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:06,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-23 16:06:06,790 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:06,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:06,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1453675567, now seen corresponding path program 1 times [2023-11-23 16:06:06,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:06,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403104849] [2023-11-23 16:06:06,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:06,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:06,795 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602067322] [2023-11-23 16:06:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:06,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:06,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:06,796 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:06,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-23 16:06:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:06,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 16:06:06,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:06,926 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:06,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:07,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:07,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403104849] [2023-11-23 16:06:07,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:07,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602067322] [2023-11-23 16:06:07,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602067322] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:07,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:07,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-23 16:06:07,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885181206] [2023-11-23 16:06:07,127 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:07,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 16:06:07,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:07,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 16:06:07,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-23 16:06:07,128 INFO L87 Difference]: Start difference. First operand 523 states and 682 transitions. Second operand has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:08,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:08,067 INFO L93 Difference]: Finished difference Result 926 states and 1167 transitions. [2023-11-23 16:06:08,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-23 16:06:08,067 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 63 [2023-11-23 16:06:08,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:08,069 INFO L225 Difference]: With dead ends: 926 [2023-11-23 16:06:08,069 INFO L226 Difference]: Without dead ends: 924 [2023-11-23 16:06:08,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=491, Invalid=1401, Unknown=0, NotChecked=0, Total=1892 [2023-11-23 16:06:08,070 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 1135 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:08,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 466 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 16:06:08,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2023-11-23 16:06:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 700. [2023-11-23 16:06:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 648 states have (on average 1.3873456790123457) internal successors, (899), 678 states have internal predecessors, (899), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 16:06:08,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 937 transitions. [2023-11-23 16:06:08,092 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 937 transitions. Word has length 63 [2023-11-23 16:06:08,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:08,092 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 937 transitions. [2023-11-23 16:06:08,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:08,092 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 937 transitions. [2023-11-23 16:06:08,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 16:06:08,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:08,093 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:08,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:08,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:08,305 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:08,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:08,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2114269545, now seen corresponding path program 1 times [2023-11-23 16:06:08,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:08,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409487050] [2023-11-23 16:06:08,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:08,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:08,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:08,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971943275] [2023-11-23 16:06:08,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:08,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:08,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:08,311 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:08,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-23 16:06:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:08,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 16:06:08,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:08,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:08,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409487050] [2023-11-23 16:06:08,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971943275] [2023-11-23 16:06:08,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971943275] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:06:08,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:06:08,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-23 16:06:08,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115421525] [2023-11-23 16:06:08,637 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:08,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:06:08,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:08,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:06:08,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-23 16:06:08,638 INFO L87 Difference]: Start difference. First operand 700 states and 937 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:09,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:09,061 INFO L93 Difference]: Finished difference Result 728 states and 954 transitions. [2023-11-23 16:06:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 16:06:09,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 64 [2023-11-23 16:06:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:09,063 INFO L225 Difference]: With dead ends: 728 [2023-11-23 16:06:09,063 INFO L226 Difference]: Without dead ends: 724 [2023-11-23 16:06:09,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2023-11-23 16:06:09,064 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 371 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:09,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 348 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:06:09,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-11-23 16:06:09,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 620. [2023-11-23 16:06:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 574 states have (on average 1.3449477351916377) internal successors, (772), 600 states have internal predecessors, (772), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 16:06:09,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 806 transitions. [2023-11-23 16:06:09,086 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 806 transitions. Word has length 64 [2023-11-23 16:06:09,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:09,086 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 806 transitions. [2023-11-23 16:06:09,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:09,086 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 806 transitions. [2023-11-23 16:06:09,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 16:06:09,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:09,087 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:09,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:09,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-23 16:06:09,297 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:09,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:09,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1117846381, now seen corresponding path program 1 times [2023-11-23 16:06:09,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:09,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255104262] [2023-11-23 16:06:09,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:09,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:09,312 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:09,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935168099] [2023-11-23 16:06:09,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:09,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:09,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:09,316 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:09,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-23 16:06:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:09,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 16:06:09,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:06:09,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:09,838 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:09,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:09,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255104262] [2023-11-23 16:06:09,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:09,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935168099] [2023-11-23 16:06:09,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935168099] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:09,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:09,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2023-11-23 16:06:09,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387287128] [2023-11-23 16:06:09,839 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:09,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-23 16:06:09,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:09,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-23 16:06:09,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-11-23 16:06:09,842 INFO L87 Difference]: Start difference. First operand 620 states and 806 transitions. Second operand has 18 states, 17 states have (on average 6.352941176470588) internal successors, (108), 18 states have internal predecessors, (108), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-23 16:06:11,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:11,012 INFO L93 Difference]: Finished difference Result 768 states and 941 transitions. [2023-11-23 16:06:11,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-23 16:06:11,012 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.352941176470588) internal successors, (108), 18 states have internal predecessors, (108), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 65 [2023-11-23 16:06:11,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:11,014 INFO L225 Difference]: With dead ends: 768 [2023-11-23 16:06:11,014 INFO L226 Difference]: Without dead ends: 766 [2023-11-23 16:06:11,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2023-11-23 16:06:11,015 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 946 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:11,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 498 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 16:06:11,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-11-23 16:06:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 622. [2023-11-23 16:06:11,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 576 states have (on average 1.3333333333333333) internal successors, (768), 602 states have internal predecessors, (768), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 16:06:11,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 802 transitions. [2023-11-23 16:06:11,044 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 802 transitions. Word has length 65 [2023-11-23 16:06:11,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:11,044 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 802 transitions. [2023-11-23 16:06:11,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.352941176470588) internal successors, (108), 18 states have internal predecessors, (108), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-23 16:06:11,045 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 802 transitions. [2023-11-23 16:06:11,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-23 16:06:11,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:11,045 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:11,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:11,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-23 16:06:11,256 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:11,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:11,256 INFO L85 PathProgramCache]: Analyzing trace with hash 687793999, now seen corresponding path program 1 times [2023-11-23 16:06:11,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:11,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67871069] [2023-11-23 16:06:11,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:11,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:11,260 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:11,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261984592] [2023-11-23 16:06:11,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:11,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:11,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:11,261 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:11,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-23 16:06:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:11,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:06:11,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:11,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:11,478 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:11,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:11,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67871069] [2023-11-23 16:06:11,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:11,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261984592] [2023-11-23 16:06:11,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261984592] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:11,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:11,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 16:06:11,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681727558] [2023-11-23 16:06:11,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:11,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:06:11,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:11,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:06:11,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:06:11,480 INFO L87 Difference]: Start difference. First operand 622 states and 802 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:11,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:11,713 INFO L93 Difference]: Finished difference Result 684 states and 855 transitions. [2023-11-23 16:06:11,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 16:06:11,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 66 [2023-11-23 16:06:11,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:11,715 INFO L225 Difference]: With dead ends: 684 [2023-11-23 16:06:11,715 INFO L226 Difference]: Without dead ends: 682 [2023-11-23 16:06:11,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-23 16:06:11,716 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 174 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:11,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 220 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:06:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-11-23 16:06:11,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 649. [2023-11-23 16:06:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 603 states have (on average 1.3233830845771144) internal successors, (798), 629 states have internal predecessors, (798), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 16:06:11,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 832 transitions. [2023-11-23 16:06:11,738 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 832 transitions. Word has length 66 [2023-11-23 16:06:11,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:11,738 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 832 transitions. [2023-11-23 16:06:11,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:11,739 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 832 transitions. [2023-11-23 16:06:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 16:06:11,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:11,739 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:11,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-23 16:06:11,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-23 16:06:11,950 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:11,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash -153222425, now seen corresponding path program 1 times [2023-11-23 16:06:11,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:11,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002009197] [2023-11-23 16:06:11,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:11,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:11,954 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:11,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397249625] [2023-11-23 16:06:11,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:11,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:11,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:11,964 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:11,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-23 16:06:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:11,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:06:11,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:12,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:06:12,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:12,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002009197] [2023-11-23 16:06:12,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:12,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397249625] [2023-11-23 16:06:12,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397249625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:06:12,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:06:12,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 16:06:12,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263585279] [2023-11-23 16:06:12,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:06:12,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 16:06:12,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:12,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 16:06:12,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:06:12,040 INFO L87 Difference]: Start difference. First operand 649 states and 832 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 16:06:12,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:12,225 INFO L93 Difference]: Finished difference Result 973 states and 1241 transitions. [2023-11-23 16:06:12,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 16:06:12,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 67 [2023-11-23 16:06:12,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:12,227 INFO L225 Difference]: With dead ends: 973 [2023-11-23 16:06:12,228 INFO L226 Difference]: Without dead ends: 971 [2023-11-23 16:06:12,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 16:06:12,228 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 69 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:12,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 279 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:06:12,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-11-23 16:06:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 864. [2023-11-23 16:06:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 812 states have (on average 1.3165024630541873) internal successors, (1069), 838 states have internal predecessors, (1069), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 16:06:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1115 transitions. [2023-11-23 16:06:12,267 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1115 transitions. Word has length 67 [2023-11-23 16:06:12,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:12,267 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1115 transitions. [2023-11-23 16:06:12,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 16:06:12,267 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1115 transitions. [2023-11-23 16:06:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 16:06:12,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:12,268 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:12,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:12,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:12,478 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:12,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:12,478 INFO L85 PathProgramCache]: Analyzing trace with hash -454927791, now seen corresponding path program 1 times [2023-11-23 16:06:12,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:12,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111633273] [2023-11-23 16:06:12,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:12,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:12,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:12,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64068410] [2023-11-23 16:06:12,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:12,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:12,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:12,483 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:12,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-23 16:06:12,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 16:06:12,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:06:12,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:06:12,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:12,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111633273] [2023-11-23 16:06:12,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:12,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64068410] [2023-11-23 16:06:12,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64068410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:06:12,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:06:12,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 16:06:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094027527] [2023-11-23 16:06:12,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:06:12,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:06:12,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:12,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:06:12,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:06:12,736 INFO L87 Difference]: Start difference. First operand 864 states and 1115 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:12,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:12,977 INFO L93 Difference]: Finished difference Result 889 states and 1131 transitions. [2023-11-23 16:06:12,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 16:06:12,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2023-11-23 16:06:12,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:12,980 INFO L225 Difference]: With dead ends: 889 [2023-11-23 16:06:12,980 INFO L226 Difference]: Without dead ends: 887 [2023-11-23 16:06:12,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-23 16:06:12,981 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 183 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:12,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 294 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:06:12,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-11-23 16:06:13,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 873. [2023-11-23 16:06:13,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 821 states have (on average 1.3118148599269184) internal successors, (1077), 847 states have internal predecessors, (1077), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 16:06:13,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1123 transitions. [2023-11-23 16:06:13,012 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1123 transitions. Word has length 68 [2023-11-23 16:06:13,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:13,013 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1123 transitions. [2023-11-23 16:06:13,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:13,013 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1123 transitions. [2023-11-23 16:06:13,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 16:06:13,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:13,013 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:13,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:13,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:13,224 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:13,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:13,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1735424739, now seen corresponding path program 1 times [2023-11-23 16:06:13,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:13,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151328776] [2023-11-23 16:06:13,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:13,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:13,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:13,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [955366826] [2023-11-23 16:06:13,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:13,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:13,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:13,230 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:13,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-23 16:06:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:13,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-23 16:06:13,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:06:13,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:16,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:16,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151328776] [2023-11-23 16:06:16,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:16,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955366826] [2023-11-23 16:06:16,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955366826] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:06:16,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:06:16,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-23 16:06:16,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130513378] [2023-11-23 16:06:16,094 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:16,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 16:06:16,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:16,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 16:06:16,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=354, Unknown=1, NotChecked=0, Total=420 [2023-11-23 16:06:16,100 INFO L87 Difference]: Start difference. First operand 873 states and 1123 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:16,615 INFO L93 Difference]: Finished difference Result 898 states and 1132 transitions. [2023-11-23 16:06:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 16:06:16,616 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2023-11-23 16:06:16,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:16,618 INFO L225 Difference]: With dead ends: 898 [2023-11-23 16:06:16,618 INFO L226 Difference]: Without dead ends: 896 [2023-11-23 16:06:16,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=580, Unknown=1, NotChecked=0, Total=702 [2023-11-23 16:06:16,618 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 291 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:16,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 355 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 16:06:16,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-23 16:06:16,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 873. [2023-11-23 16:06:16,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 821 states have (on average 1.3093788063337393) internal successors, (1075), 847 states have internal predecessors, (1075), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 16:06:16,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1121 transitions. [2023-11-23 16:06:16,651 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1121 transitions. Word has length 70 [2023-11-23 16:06:16,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:16,652 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1121 transitions. [2023-11-23 16:06:16,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:16,652 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1121 transitions. [2023-11-23 16:06:16,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 16:06:16,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:16,652 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:16,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-23 16:06:16,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-23 16:06:16,863 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:16,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:16,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2036408025, now seen corresponding path program 1 times [2023-11-23 16:06:16,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:16,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287371569] [2023-11-23 16:06:16,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:16,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:16,867 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:16,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875381827] [2023-11-23 16:06:16,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:16,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:16,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:16,868 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:16,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-23 16:06:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:16,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 16:06:16,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:17,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:17,311 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:06:17,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:17,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287371569] [2023-11-23 16:06:17,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:17,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875381827] [2023-11-23 16:06:17,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875381827] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:17,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:17,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-23 16:06:17,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691425961] [2023-11-23 16:06:17,312 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:17,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 16:06:17,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:17,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 16:06:17,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-11-23 16:06:17,313 INFO L87 Difference]: Start difference. First operand 873 states and 1121 transitions. Second operand has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:17,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:17,965 INFO L93 Difference]: Finished difference Result 992 states and 1239 transitions. [2023-11-23 16:06:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-23 16:06:17,965 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 71 [2023-11-23 16:06:17,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:17,967 INFO L225 Difference]: With dead ends: 992 [2023-11-23 16:06:17,968 INFO L226 Difference]: Without dead ends: 990 [2023-11-23 16:06:17,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2023-11-23 16:06:17,968 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 557 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:17,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 318 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 16:06:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2023-11-23 16:06:18,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 863. [2023-11-23 16:06:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 811 states have (on average 1.3082614056720099) internal successors, (1061), 837 states have internal predecessors, (1061), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 16:06:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1107 transitions. [2023-11-23 16:06:18,008 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1107 transitions. Word has length 71 [2023-11-23 16:06:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:18,008 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1107 transitions. [2023-11-23 16:06:18,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1107 transitions. [2023-11-23 16:06:18,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 16:06:18,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:18,009 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:18,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:18,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-23 16:06:18,220 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:18,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:18,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1295860577, now seen corresponding path program 1 times [2023-11-23 16:06:18,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:18,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974233517] [2023-11-23 16:06:18,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:18,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:18,224 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:18,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729835327] [2023-11-23 16:06:18,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:18,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:18,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:18,225 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:18,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-23 16:06:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:18,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 16:06:18,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:06:18,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:06:18,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:18,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974233517] [2023-11-23 16:06:18,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:18,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729835327] [2023-11-23 16:06:18,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729835327] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:18,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:18,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-23 16:06:18,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110210942] [2023-11-23 16:06:18,561 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:18,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 16:06:18,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:18,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 16:06:18,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-23 16:06:18,562 INFO L87 Difference]: Start difference. First operand 863 states and 1107 transitions. Second operand has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 16:06:18,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:18,867 INFO L93 Difference]: Finished difference Result 993 states and 1249 transitions. [2023-11-23 16:06:18,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 16:06:18,867 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 72 [2023-11-23 16:06:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:18,869 INFO L225 Difference]: With dead ends: 993 [2023-11-23 16:06:18,869 INFO L226 Difference]: Without dead ends: 991 [2023-11-23 16:06:18,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-23 16:06:18,870 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 235 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:18,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 327 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:06:18,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2023-11-23 16:06:18,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 891. [2023-11-23 16:06:18,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 839 states have (on average 1.2955899880810489) internal successors, (1087), 865 states have internal predecessors, (1087), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 16:06:18,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1133 transitions. [2023-11-23 16:06:18,913 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1133 transitions. Word has length 72 [2023-11-23 16:06:18,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:18,913 INFO L495 AbstractCegarLoop]: Abstraction has 891 states and 1133 transitions. [2023-11-23 16:06:18,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 16:06:18,914 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1133 transitions. [2023-11-23 16:06:18,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 16:06:18,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:18,914 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2023-11-23 16:06:18,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:19,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-23 16:06:19,120 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:19,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:19,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2099405738, now seen corresponding path program 1 times [2023-11-23 16:06:19,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:19,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011770565] [2023-11-23 16:06:19,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:19,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:19,125 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:19,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [624381203] [2023-11-23 16:06:19,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:19,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:19,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:19,125 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:19,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-23 16:06:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:19,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:06:19,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:19,295 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:19,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:19,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:19,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011770565] [2023-11-23 16:06:19,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:19,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624381203] [2023-11-23 16:06:19,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624381203] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:19,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:19,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-23 16:06:19,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126777525] [2023-11-23 16:06:19,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:19,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 16:06:19,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:19,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 16:06:19,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-23 16:06:19,395 INFO L87 Difference]: Start difference. First operand 891 states and 1133 transitions. Second operand has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 16:06:19,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:19,652 INFO L93 Difference]: Finished difference Result 1161 states and 1427 transitions. [2023-11-23 16:06:19,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 16:06:19,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 78 [2023-11-23 16:06:19,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:19,655 INFO L225 Difference]: With dead ends: 1161 [2023-11-23 16:06:19,661 INFO L226 Difference]: Without dead ends: 1159 [2023-11-23 16:06:19,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-23 16:06:19,662 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 460 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:19,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 262 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:06:19,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2023-11-23 16:06:19,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1018. [2023-11-23 16:06:19,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 962 states have (on average 1.2837837837837838) internal successors, (1235), 988 states have internal predecessors, (1235), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 16:06:19,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1289 transitions. [2023-11-23 16:06:19,701 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1289 transitions. Word has length 78 [2023-11-23 16:06:19,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:19,702 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1289 transitions. [2023-11-23 16:06:19,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 16:06:19,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1289 transitions. [2023-11-23 16:06:19,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 16:06:19,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:19,702 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2023-11-23 16:06:19,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:19,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-23 16:06:19,914 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:19,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:19,914 INFO L85 PathProgramCache]: Analyzing trace with hash -657068333, now seen corresponding path program 1 times [2023-11-23 16:06:19,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:19,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560934540] [2023-11-23 16:06:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:19,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:19,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:19,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492941487] [2023-11-23 16:06:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:19,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:19,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:19,926 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:19,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-23 16:06:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:19,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:06:19,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:20,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:20,220 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:20,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:20,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560934540] [2023-11-23 16:06:20,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:20,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492941487] [2023-11-23 16:06:20,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492941487] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:20,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:20,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-23 16:06:20,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012792025] [2023-11-23 16:06:20,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:20,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 16:06:20,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:20,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 16:06:20,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-23 16:06:20,222 INFO L87 Difference]: Start difference. First operand 1018 states and 1289 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-23 16:06:20,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:20,556 INFO L93 Difference]: Finished difference Result 1193 states and 1454 transitions. [2023-11-23 16:06:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 16:06:20,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 79 [2023-11-23 16:06:20,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:20,558 INFO L225 Difference]: With dead ends: 1193 [2023-11-23 16:06:20,559 INFO L226 Difference]: Without dead ends: 1192 [2023-11-23 16:06:20,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-11-23 16:06:20,559 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 493 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:20,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 317 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:06:20,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2023-11-23 16:06:20,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1020. [2023-11-23 16:06:20,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 964 states have (on average 1.2780082987551866) internal successors, (1232), 990 states have internal predecessors, (1232), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 16:06:20,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1286 transitions. [2023-11-23 16:06:20,598 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1286 transitions. Word has length 79 [2023-11-23 16:06:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:20,598 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1286 transitions. [2023-11-23 16:06:20,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-23 16:06:20,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1286 transitions. [2023-11-23 16:06:20,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 16:06:20,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:20,599 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:20,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-23 16:06:20,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:20,802 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:20,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:20,802 INFO L85 PathProgramCache]: Analyzing trace with hash 498464703, now seen corresponding path program 1 times [2023-11-23 16:06:20,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:20,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890188525] [2023-11-23 16:06:20,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:20,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:20,806 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:20,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330017667] [2023-11-23 16:06:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:20,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:20,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:20,807 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:20,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-23 16:06:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:20,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:06:20,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:20,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:21,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:21,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890188525] [2023-11-23 16:06:21,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:21,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330017667] [2023-11-23 16:06:21,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330017667] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:21,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:21,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 16:06:21,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676956035] [2023-11-23 16:06:21,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:21,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:06:21,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:21,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:06:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:06:21,083 INFO L87 Difference]: Start difference. First operand 1020 states and 1286 transitions. Second operand has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:21,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:21,451 INFO L93 Difference]: Finished difference Result 1501 states and 1849 transitions. [2023-11-23 16:06:21,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 16:06:21,452 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 81 [2023-11-23 16:06:21,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:21,455 INFO L225 Difference]: With dead ends: 1501 [2023-11-23 16:06:21,455 INFO L226 Difference]: Without dead ends: 1500 [2023-11-23 16:06:21,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-11-23 16:06:21,455 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 288 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:21,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 395 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:06:21,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2023-11-23 16:06:21,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1245. [2023-11-23 16:06:21,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1182 states have (on average 1.2851099830795263) internal successors, (1519), 1208 states have internal predecessors, (1519), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 16:06:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1587 transitions. [2023-11-23 16:06:21,504 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1587 transitions. Word has length 81 [2023-11-23 16:06:21,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:21,505 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1587 transitions. [2023-11-23 16:06:21,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1587 transitions. [2023-11-23 16:06:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-23 16:06:21,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:21,505 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 16:06:21,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-23 16:06:21,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-23 16:06:21,706 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:21,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:21,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1738350956, now seen corresponding path program 1 times [2023-11-23 16:06:21,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:21,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226908866] [2023-11-23 16:06:21,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:21,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:21,710 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:21,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [688065138] [2023-11-23 16:06:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:21,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:21,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:21,711 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:21,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-23 16:06:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:21,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:06:21,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:21,813 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:21,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:21,886 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:21,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:21,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226908866] [2023-11-23 16:06:21,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:21,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688065138] [2023-11-23 16:06:21,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688065138] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:21,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:21,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-23 16:06:21,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883851176] [2023-11-23 16:06:21,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:21,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 16:06:21,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:21,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 16:06:21,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-23 16:06:21,887 INFO L87 Difference]: Start difference. First operand 1245 states and 1587 transitions. Second operand has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:22,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:22,117 INFO L93 Difference]: Finished difference Result 1590 states and 1959 transitions. [2023-11-23 16:06:22,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 16:06:22,117 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 82 [2023-11-23 16:06:22,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:22,120 INFO L225 Difference]: With dead ends: 1590 [2023-11-23 16:06:22,121 INFO L226 Difference]: Without dead ends: 1589 [2023-11-23 16:06:22,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-23 16:06:22,121 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 337 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:22,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 549 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:06:22,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2023-11-23 16:06:22,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1367. [2023-11-23 16:06:22,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1303 states have (on average 1.27168073676132) internal successors, (1657), 1329 states have internal predecessors, (1657), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 16:06:22,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1727 transitions. [2023-11-23 16:06:22,174 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1727 transitions. Word has length 82 [2023-11-23 16:06:22,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:22,175 INFO L495 AbstractCegarLoop]: Abstraction has 1367 states and 1727 transitions. [2023-11-23 16:06:22,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:22,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1727 transitions. [2023-11-23 16:06:22,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 16:06:22,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:22,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2023-11-23 16:06:22,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:22,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-23 16:06:22,386 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:22,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:22,386 INFO L85 PathProgramCache]: Analyzing trace with hash 634608902, now seen corresponding path program 1 times [2023-11-23 16:06:22,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:22,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582455068] [2023-11-23 16:06:22,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:22,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:22,391 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:22,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460578566] [2023-11-23 16:06:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:22,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:22,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:22,392 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:22,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-23 16:06:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:22,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:06:22,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:22,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:22,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582455068] [2023-11-23 16:06:22,755 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460578566] [2023-11-23 16:06:22,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460578566] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:22,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:22,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-23 16:06:22,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258504191] [2023-11-23 16:06:22,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:22,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 16:06:22,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:22,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 16:06:22,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-23 16:06:22,756 INFO L87 Difference]: Start difference. First operand 1367 states and 1727 transitions. Second operand has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-23 16:06:23,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:23,145 INFO L93 Difference]: Finished difference Result 1474 states and 1816 transitions. [2023-11-23 16:06:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 16:06:23,146 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 84 [2023-11-23 16:06:23,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:23,149 INFO L225 Difference]: With dead ends: 1474 [2023-11-23 16:06:23,149 INFO L226 Difference]: Without dead ends: 1473 [2023-11-23 16:06:23,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2023-11-23 16:06:23,149 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 515 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:23,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 348 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:06:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2023-11-23 16:06:23,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1393. [2023-11-23 16:06:23,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1329 states have (on average 1.2656132430398797) internal successors, (1682), 1355 states have internal predecessors, (1682), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 16:06:23,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1752 transitions. [2023-11-23 16:06:23,209 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1752 transitions. Word has length 84 [2023-11-23 16:06:23,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:23,209 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 1752 transitions. [2023-11-23 16:06:23,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-23 16:06:23,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1752 transitions. [2023-11-23 16:06:23,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 16:06:23,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:23,210 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2023-11-23 16:06:23,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-23 16:06:23,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-23 16:06:23,416 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:23,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:23,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1801960399, now seen corresponding path program 1 times [2023-11-23 16:06:23,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:23,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937132625] [2023-11-23 16:06:23,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:23,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:23,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:23,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078733807] [2023-11-23 16:06:23,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:23,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:23,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:23,423 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:23,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-23 16:06:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:23,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 16:06:23,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:23,688 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:23,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:23,910 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:23,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:23,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937132625] [2023-11-23 16:06:23,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:23,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078733807] [2023-11-23 16:06:23,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078733807] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:23,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:23,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-23 16:06:23,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529320074] [2023-11-23 16:06:23,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:23,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 16:06:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:23,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 16:06:23,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-11-23 16:06:23,912 INFO L87 Difference]: Start difference. First operand 1393 states and 1752 transitions. Second operand has 14 states, 13 states have (on average 10.384615384615385) internal successors, (135), 14 states have internal predecessors, (135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 16:06:24,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:24,392 INFO L93 Difference]: Finished difference Result 1445 states and 1792 transitions. [2023-11-23 16:06:24,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 16:06:24,393 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.384615384615385) internal successors, (135), 14 states have internal predecessors, (135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 85 [2023-11-23 16:06:24,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:24,396 INFO L225 Difference]: With dead ends: 1445 [2023-11-23 16:06:24,396 INFO L226 Difference]: Without dead ends: 1444 [2023-11-23 16:06:24,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2023-11-23 16:06:24,397 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 644 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:24,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 403 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:06:24,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2023-11-23 16:06:24,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1393. [2023-11-23 16:06:24,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1329 states have (on average 1.2633559066967646) internal successors, (1679), 1355 states have internal predecessors, (1679), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 16:06:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1749 transitions. [2023-11-23 16:06:24,479 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1749 transitions. Word has length 85 [2023-11-23 16:06:24,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:24,479 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 1749 transitions. [2023-11-23 16:06:24,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.384615384615385) internal successors, (135), 14 states have internal predecessors, (135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 16:06:24,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1749 transitions. [2023-11-23 16:06:24,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 16:06:24,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:24,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:24,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:24,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:24,692 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:24,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:24,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1903468058, now seen corresponding path program 1 times [2023-11-23 16:06:24,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:24,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616826452] [2023-11-23 16:06:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:24,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:24,698 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:24,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40369295] [2023-11-23 16:06:24,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:24,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:24,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:24,699 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:24,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-23 16:06:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:24,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 16:06:24,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:24,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:25,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:25,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616826452] [2023-11-23 16:06:25,053 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:25,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40369295] [2023-11-23 16:06:25,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40369295] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:25,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:25,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-23 16:06:25,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496850095] [2023-11-23 16:06:25,053 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:25,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 16:06:25,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:25,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 16:06:25,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-23 16:06:25,054 INFO L87 Difference]: Start difference. First operand 1393 states and 1749 transitions. Second operand has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:26,182 INFO L93 Difference]: Finished difference Result 1477 states and 1821 transitions. [2023-11-23 16:06:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 16:06:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 86 [2023-11-23 16:06:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:26,186 INFO L225 Difference]: With dead ends: 1477 [2023-11-23 16:06:26,186 INFO L226 Difference]: Without dead ends: 1474 [2023-11-23 16:06:26,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-11-23 16:06:26,186 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 595 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:26,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 609 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 16:06:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2023-11-23 16:06:26,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1401. [2023-11-23 16:06:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1337 states have (on average 1.2602842183994016) internal successors, (1685), 1363 states have internal predecessors, (1685), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 16:06:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1755 transitions. [2023-11-23 16:06:26,243 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1755 transitions. Word has length 86 [2023-11-23 16:06:26,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:26,244 INFO L495 AbstractCegarLoop]: Abstraction has 1401 states and 1755 transitions. [2023-11-23 16:06:26,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:26,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1755 transitions. [2023-11-23 16:06:26,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 16:06:26,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:26,245 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 16:06:26,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:26,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:26,456 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:26,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:26,456 INFO L85 PathProgramCache]: Analyzing trace with hash 899994254, now seen corresponding path program 1 times [2023-11-23 16:06:26,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:26,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453797645] [2023-11-23 16:06:26,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:26,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:26,467 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:26,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437068561] [2023-11-23 16:06:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:26,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:26,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:26,469 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:26,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-23 16:06:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:26,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 16:06:26,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:26,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:27,349 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:27,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:27,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453797645] [2023-11-23 16:06:27,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:27,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437068561] [2023-11-23 16:06:27,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437068561] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:27,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:27,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-11-23 16:06:27,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431238217] [2023-11-23 16:06:27,349 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:27,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-23 16:06:27,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:27,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-23 16:06:27,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2023-11-23 16:06:27,350 INFO L87 Difference]: Start difference. First operand 1401 states and 1755 transitions. Second operand has 23 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 23 states have internal predecessors, (148), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-23 16:06:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:29,669 INFO L93 Difference]: Finished difference Result 2128 states and 2622 transitions. [2023-11-23 16:06:29,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-23 16:06:29,669 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 23 states have internal predecessors, (148), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 89 [2023-11-23 16:06:29,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:29,672 INFO L225 Difference]: With dead ends: 2128 [2023-11-23 16:06:29,672 INFO L226 Difference]: Without dead ends: 1680 [2023-11-23 16:06:29,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=846, Invalid=3060, Unknown=0, NotChecked=0, Total=3906 [2023-11-23 16:06:29,674 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 1603 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:29,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 505 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 16:06:29,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2023-11-23 16:06:29,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1474. [2023-11-23 16:06:29,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1407 states have (on average 1.2686567164179106) internal successors, (1785), 1433 states have internal predecessors, (1785), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-23 16:06:29,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 1861 transitions. [2023-11-23 16:06:29,735 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 1861 transitions. Word has length 89 [2023-11-23 16:06:29,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:29,735 INFO L495 AbstractCegarLoop]: Abstraction has 1474 states and 1861 transitions. [2023-11-23 16:06:29,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 23 states have internal predecessors, (148), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-23 16:06:29,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 1861 transitions. [2023-11-23 16:06:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 16:06:29,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:29,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 16:06:29,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:29,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:29,948 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:29,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:29,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1807813962, now seen corresponding path program 1 times [2023-11-23 16:06:29,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:29,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545234886] [2023-11-23 16:06:29,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:29,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:29,953 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:29,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369518117] [2023-11-23 16:06:29,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:29,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:29,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:29,954 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:29,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-23 16:06:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:29,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 16:06:29,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:30,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:30,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:30,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545234886] [2023-11-23 16:06:30,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:30,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369518117] [2023-11-23 16:06:30,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369518117] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:06:30,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:06:30,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-23 16:06:30,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559866472] [2023-11-23 16:06:30,683 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:30,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 16:06:30,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:30,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 16:06:30,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2023-11-23 16:06:30,684 INFO L87 Difference]: Start difference. First operand 1474 states and 1861 transitions. Second operand has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 16:06:31,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:31,420 INFO L93 Difference]: Finished difference Result 1676 states and 2075 transitions. [2023-11-23 16:06:31,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-23 16:06:31,420 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 93 [2023-11-23 16:06:31,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:31,429 INFO L225 Difference]: With dead ends: 1676 [2023-11-23 16:06:31,429 INFO L226 Difference]: Without dead ends: 1671 [2023-11-23 16:06:31,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2023-11-23 16:06:31,430 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 535 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:31,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 597 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 16:06:31,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2023-11-23 16:06:31,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1539. [2023-11-23 16:06:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1470 states have (on average 1.2673469387755103) internal successors, (1863), 1496 states have internal predecessors, (1863), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 16:06:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1943 transitions. [2023-11-23 16:06:31,496 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1943 transitions. Word has length 93 [2023-11-23 16:06:31,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:31,496 INFO L495 AbstractCegarLoop]: Abstraction has 1539 states and 1943 transitions. [2023-11-23 16:06:31,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 16:06:31,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1943 transitions. [2023-11-23 16:06:31,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-23 16:06:31,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:31,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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] [2023-11-23 16:06:31,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:31,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-23 16:06:31,708 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:31,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:31,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1298429678, now seen corresponding path program 1 times [2023-11-23 16:06:31,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:31,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920419543] [2023-11-23 16:06:31,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:31,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:31,713 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:31,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935259449] [2023-11-23 16:06:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:31,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:31,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:31,714 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:31,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-23 16:06:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:31,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 16:06:31,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:32,279 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:32,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:34,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:34,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920419543] [2023-11-23 16:06:34,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:34,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935259449] [2023-11-23 16:06:34,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935259449] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:34,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:34,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2023-11-23 16:06:34,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375921144] [2023-11-23 16:06:34,321 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:34,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 16:06:34,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 16:06:34,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2023-11-23 16:06:34,322 INFO L87 Difference]: Start difference. First operand 1539 states and 1943 transitions. Second operand has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-23 16:06:38,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:38,334 INFO L93 Difference]: Finished difference Result 1605 states and 1992 transitions. [2023-11-23 16:06:38,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-23 16:06:38,335 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 94 [2023-11-23 16:06:38,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:38,337 INFO L225 Difference]: With dead ends: 1605 [2023-11-23 16:06:38,337 INFO L226 Difference]: Without dead ends: 1604 [2023-11-23 16:06:38,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=772, Invalid=2768, Unknown=0, NotChecked=0, Total=3540 [2023-11-23 16:06:38,339 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 960 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:38,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 405 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 16:06:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2023-11-23 16:06:38,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1523. [2023-11-23 16:06:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1454 states have (on average 1.2689133425034387) internal successors, (1845), 1480 states have internal predecessors, (1845), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 16:06:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1925 transitions. [2023-11-23 16:06:38,403 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1925 transitions. Word has length 94 [2023-11-23 16:06:38,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:38,403 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1925 transitions. [2023-11-23 16:06:38,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-23 16:06:38,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1925 transitions. [2023-11-23 16:06:38,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 16:06:38,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:38,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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] [2023-11-23 16:06:38,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-23 16:06:38,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-23 16:06:38,605 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:38,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:38,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2115616630, now seen corresponding path program 1 times [2023-11-23 16:06:38,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:38,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960491039] [2023-11-23 16:06:38,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:38,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:38,612 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:38,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730988675] [2023-11-23 16:06:38,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:38,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:38,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:38,613 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:38,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-23 16:06:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:38,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 16:06:38,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:38,900 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:39,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:39,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960491039] [2023-11-23 16:06:39,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:39,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730988675] [2023-11-23 16:06:39,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730988675] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:39,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:39,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-23 16:06:39,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379356497] [2023-11-23 16:06:39,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:39,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 16:06:39,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:39,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 16:06:39,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-23 16:06:39,062 INFO L87 Difference]: Start difference. First operand 1523 states and 1925 transitions. Second operand has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:39,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:39,630 INFO L93 Difference]: Finished difference Result 1560 states and 1960 transitions. [2023-11-23 16:06:39,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 16:06:39,630 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 95 [2023-11-23 16:06:39,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:39,632 INFO L225 Difference]: With dead ends: 1560 [2023-11-23 16:06:39,632 INFO L226 Difference]: Without dead ends: 1559 [2023-11-23 16:06:39,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=688, Unknown=0, NotChecked=0, Total=870 [2023-11-23 16:06:39,633 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 262 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:39,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 565 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 16:06:39,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2023-11-23 16:06:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1544. [2023-11-23 16:06:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1475 states have (on average 1.265084745762712) internal successors, (1866), 1501 states have internal predecessors, (1866), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 16:06:39,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 1946 transitions. [2023-11-23 16:06:39,706 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 1946 transitions. Word has length 95 [2023-11-23 16:06:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:39,707 INFO L495 AbstractCegarLoop]: Abstraction has 1544 states and 1946 transitions. [2023-11-23 16:06:39,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 1946 transitions. [2023-11-23 16:06:39,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 16:06:39,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:39,708 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:39,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-23 16:06:39,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-23 16:06:39,910 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:39,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:39,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2078295400, now seen corresponding path program 1 times [2023-11-23 16:06:39,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:39,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869107441] [2023-11-23 16:06:39,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:39,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:39,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:39,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611759837] [2023-11-23 16:06:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:39,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:39,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:39,916 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:39,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-23 16:06:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:39,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 16:06:39,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 23 proven. 25 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:40,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 23 proven. 25 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:40,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:40,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869107441] [2023-11-23 16:06:40,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:40,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611759837] [2023-11-23 16:06:40,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611759837] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:40,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:40,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-11-23 16:06:40,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395919796] [2023-11-23 16:06:40,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:40,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 16:06:40,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:40,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 16:06:40,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:06:40,176 INFO L87 Difference]: Start difference. First operand 1544 states and 1946 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-23 16:06:40,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:40,523 INFO L93 Difference]: Finished difference Result 1834 states and 2292 transitions. [2023-11-23 16:06:40,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 16:06:40,523 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) Word has length 96 [2023-11-23 16:06:40,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:40,524 INFO L225 Difference]: With dead ends: 1834 [2023-11-23 16:06:40,524 INFO L226 Difference]: Without dead ends: 849 [2023-11-23 16:06:40,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-23 16:06:40,526 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 646 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:40,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 456 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:06:40,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2023-11-23 16:06:40,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 811. [2023-11-23 16:06:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 762 states have (on average 1.2414698162729658) internal successors, (946), 788 states have internal predecessors, (946), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 16:06:40,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 986 transitions. [2023-11-23 16:06:40,560 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 986 transitions. Word has length 96 [2023-11-23 16:06:40,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:40,561 INFO L495 AbstractCegarLoop]: Abstraction has 811 states and 986 transitions. [2023-11-23 16:06:40,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-23 16:06:40,561 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 986 transitions. [2023-11-23 16:06:40,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 16:06:40,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:40,562 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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] [2023-11-23 16:06:40,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:40,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-23 16:06:40,772 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:40,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:40,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1159605914, now seen corresponding path program 1 times [2023-11-23 16:06:40,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:40,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897344524] [2023-11-23 16:06:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:40,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:40,777 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:40,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998017816] [2023-11-23 16:06:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:40,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:40,779 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:40,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-23 16:06:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:40,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:06:40,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:40,876 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 16:06:40,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:06:40,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:40,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897344524] [2023-11-23 16:06:40,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:40,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998017816] [2023-11-23 16:06:40,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998017816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:06:40,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:06:40,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:06:40,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553607343] [2023-11-23 16:06:40,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:06:40,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:06:40,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:40,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:06:40,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:06:40,877 INFO L87 Difference]: Start difference. First operand 811 states and 986 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:41,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:41,004 INFO L93 Difference]: Finished difference Result 814 states and 987 transitions. [2023-11-23 16:06:41,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:06:41,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 96 [2023-11-23 16:06:41,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:41,006 INFO L225 Difference]: With dead ends: 814 [2023-11-23 16:06:41,006 INFO L226 Difference]: Without dead ends: 791 [2023-11-23 16:06:41,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:06:41,006 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 16 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:41,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 189 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:06:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2023-11-23 16:06:41,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 790. [2023-11-23 16:06:41,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 741 states have (on average 1.2456140350877194) internal successors, (923), 767 states have internal predecessors, (923), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 16:06:41,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 963 transitions. [2023-11-23 16:06:41,039 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 963 transitions. Word has length 96 [2023-11-23 16:06:41,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:41,039 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 963 transitions. [2023-11-23 16:06:41,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 16:06:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 963 transitions. [2023-11-23 16:06:41,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 16:06:41,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:41,040 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 16:06:41,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-23 16:06:41,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-23 16:06:41,249 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:41,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:41,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1587584718, now seen corresponding path program 1 times [2023-11-23 16:06:41,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:41,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540887635] [2023-11-23 16:06:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:41,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:41,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147434610] [2023-11-23 16:06:41,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:41,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:41,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:41,255 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:41,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-23 16:06:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:41,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 16:06:41,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:41,572 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:41,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:41,731 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:41,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:41,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540887635] [2023-11-23 16:06:41,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:41,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147434610] [2023-11-23 16:06:41,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147434610] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:41,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:41,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-23 16:06:41,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035905674] [2023-11-23 16:06:41,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:41,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 16:06:41,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:41,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 16:06:41,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2023-11-23 16:06:41,733 INFO L87 Difference]: Start difference. First operand 790 states and 963 transitions. Second operand has 19 states, 18 states have (on average 9.055555555555555) internal successors, (163), 19 states have internal predecessors, (163), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-23 16:06:42,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:42,777 INFO L93 Difference]: Finished difference Result 1181 states and 1420 transitions. [2023-11-23 16:06:42,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-23 16:06:42,780 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.055555555555555) internal successors, (163), 19 states have internal predecessors, (163), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 97 [2023-11-23 16:06:42,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:42,782 INFO L225 Difference]: With dead ends: 1181 [2023-11-23 16:06:42,782 INFO L226 Difference]: Without dead ends: 1177 [2023-11-23 16:06:42,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=233, Invalid=823, Unknown=0, NotChecked=0, Total=1056 [2023-11-23 16:06:42,783 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 1203 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:42,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 660 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 16:06:42,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2023-11-23 16:06:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 947. [2023-11-23 16:06:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 892 states have (on average 1.2410313901345291) internal successors, (1107), 918 states have internal predecessors, (1107), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-23 16:06:42,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1159 transitions. [2023-11-23 16:06:42,828 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1159 transitions. Word has length 97 [2023-11-23 16:06:42,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:42,828 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1159 transitions. [2023-11-23 16:06:42,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.055555555555555) internal successors, (163), 19 states have internal predecessors, (163), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-23 16:06:42,829 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1159 transitions. [2023-11-23 16:06:42,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-23 16:06:42,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:42,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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] [2023-11-23 16:06:42,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-23 16:06:43,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-23 16:06:43,030 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:43,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:43,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1820908924, now seen corresponding path program 1 times [2023-11-23 16:06:43,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:43,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910444041] [2023-11-23 16:06:43,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:43,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:43,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:43,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762292874] [2023-11-23 16:06:43,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:43,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:43,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:43,035 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:43,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-23 16:06:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:43,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:06:43,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:43,166 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:43,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:06:43,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:43,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910444041] [2023-11-23 16:06:43,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:43,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762292874] [2023-11-23 16:06:43,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762292874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:06:43,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:06:43,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 16:06:43,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935272889] [2023-11-23 16:06:43,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:06:43,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 16:06:43,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:43,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 16:06:43,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-23 16:06:43,167 INFO L87 Difference]: Start difference. First operand 947 states and 1159 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:43,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:43,311 INFO L93 Difference]: Finished difference Result 948 states and 1159 transitions. [2023-11-23 16:06:43,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 16:06:43,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 99 [2023-11-23 16:06:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:43,312 INFO L225 Difference]: With dead ends: 948 [2023-11-23 16:06:43,312 INFO L226 Difference]: Without dead ends: 947 [2023-11-23 16:06:43,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:06:43,314 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 88 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:43,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 281 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:06:43,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2023-11-23 16:06:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 946. [2023-11-23 16:06:43,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 892 states have (on average 1.2399103139013452) internal successors, (1106), 917 states have internal predecessors, (1106), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-23 16:06:43,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1158 transitions. [2023-11-23 16:06:43,363 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1158 transitions. Word has length 99 [2023-11-23 16:06:43,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:43,364 INFO L495 AbstractCegarLoop]: Abstraction has 946 states and 1158 transitions. [2023-11-23 16:06:43,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:43,364 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1158 transitions. [2023-11-23 16:06:43,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-23 16:06:43,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:43,372 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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] [2023-11-23 16:06:43,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-23 16:06:43,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:43,583 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:43,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:43,583 INFO L85 PathProgramCache]: Analyzing trace with hash 613601972, now seen corresponding path program 1 times [2023-11-23 16:06:43,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:43,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008447964] [2023-11-23 16:06:43,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:43,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:43,587 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:43,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466975198] [2023-11-23 16:06:43,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:43,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:43,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:43,589 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:43,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-23 16:06:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:43,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 16:06:43,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:44,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:45,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:45,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008447964] [2023-11-23 16:06:45,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:45,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466975198] [2023-11-23 16:06:45,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466975198] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:45,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:45,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2023-11-23 16:06:45,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540931301] [2023-11-23 16:06:45,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:45,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-23 16:06:45,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:45,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-23 16:06:45,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2023-11-23 16:06:45,411 INFO L87 Difference]: Start difference. First operand 946 states and 1158 transitions. Second operand has 25 states, 24 states have (on average 6.708333333333333) internal successors, (161), 25 states have internal predecessors, (161), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:55,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:55,554 INFO L93 Difference]: Finished difference Result 972 states and 1181 transitions. [2023-11-23 16:06:55,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-23 16:06:55,555 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.708333333333333) internal successors, (161), 25 states have internal predecessors, (161), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 100 [2023-11-23 16:06:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:55,556 INFO L225 Difference]: With dead ends: 972 [2023-11-23 16:06:55,556 INFO L226 Difference]: Without dead ends: 945 [2023-11-23 16:06:55,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=542, Invalid=1438, Unknown=0, NotChecked=0, Total=1980 [2023-11-23 16:06:55,557 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 243 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:55,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 495 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 16:06:55,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2023-11-23 16:06:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 941. [2023-11-23 16:06:55,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 887 states have (on average 1.2401352874859075) internal successors, (1100), 912 states have internal predecessors, (1100), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-23 16:06:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1152 transitions. [2023-11-23 16:06:55,602 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1152 transitions. Word has length 100 [2023-11-23 16:06:55,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:55,602 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1152 transitions. [2023-11-23 16:06:55,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.708333333333333) internal successors, (161), 25 states have internal predecessors, (161), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:55,602 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1152 transitions. [2023-11-23 16:06:55,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 16:06:55,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:55,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:06:55,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-23 16:06:55,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:55,803 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:55,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:55,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1064445514, now seen corresponding path program 1 times [2023-11-23 16:06:55,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:55,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854110297] [2023-11-23 16:06:55,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:55,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:55,807 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:55,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [950898841] [2023-11-23 16:06:55,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:55,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:55,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:55,809 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:55,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-23 16:06:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:55,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 16:06:55,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 59 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:56,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 28 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:56,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:56,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854110297] [2023-11-23 16:06:56,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:56,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950898841] [2023-11-23 16:06:56,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950898841] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:56,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:56,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-23 16:06:56,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748187765] [2023-11-23 16:06:56,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:56,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 16:06:56,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:56,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 16:06:56,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-23 16:06:56,386 INFO L87 Difference]: Start difference. First operand 941 states and 1152 transitions. Second operand has 15 states, 14 states have (on average 12.5) internal successors, (175), 15 states have internal predecessors, (175), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-23 16:06:56,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:56,815 INFO L93 Difference]: Finished difference Result 984 states and 1184 transitions. [2023-11-23 16:06:56,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 16:06:56,816 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.5) internal successors, (175), 15 states have internal predecessors, (175), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 103 [2023-11-23 16:06:56,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:56,817 INFO L225 Difference]: With dead ends: 984 [2023-11-23 16:06:56,817 INFO L226 Difference]: Without dead ends: 982 [2023-11-23 16:06:56,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2023-11-23 16:06:56,817 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 471 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:56,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 333 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:06:56,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2023-11-23 16:06:56,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 954. [2023-11-23 16:06:56,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 900 states have (on average 1.2222222222222223) internal successors, (1100), 925 states have internal predecessors, (1100), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-23 16:06:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1152 transitions. [2023-11-23 16:06:56,863 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1152 transitions. Word has length 103 [2023-11-23 16:06:56,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:56,864 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 1152 transitions. [2023-11-23 16:06:56,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.5) internal successors, (175), 15 states have internal predecessors, (175), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-23 16:06:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1152 transitions. [2023-11-23 16:06:56,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-23 16:06:56,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:56,864 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 16:06:56,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-23 16:06:57,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:57,065 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:57,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash 729925260, now seen corresponding path program 1 times [2023-11-23 16:06:57,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:57,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322682993] [2023-11-23 16:06:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:57,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:57,069 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:57,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806205379] [2023-11-23 16:06:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:57,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:57,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:57,071 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:57,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-23 16:06:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:57,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 16:06:57,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:57,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 16:06:57,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:57,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322682993] [2023-11-23 16:06:57,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:57,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806205379] [2023-11-23 16:06:57,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806205379] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:57,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:57,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-23 16:06:57,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737927358] [2023-11-23 16:06:57,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:57,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 16:06:57,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 16:06:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:06:57,448 INFO L87 Difference]: Start difference. First operand 954 states and 1152 transitions. Second operand has 12 states, 11 states have (on average 15.545454545454545) internal successors, (171), 12 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:58,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:58,001 INFO L93 Difference]: Finished difference Result 1196 states and 1409 transitions. [2023-11-23 16:06:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 16:06:58,002 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.545454545454545) internal successors, (171), 12 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 105 [2023-11-23 16:06:58,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:58,003 INFO L225 Difference]: With dead ends: 1196 [2023-11-23 16:06:58,003 INFO L226 Difference]: Without dead ends: 791 [2023-11-23 16:06:58,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2023-11-23 16:06:58,004 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 365 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:58,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 504 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 16:06:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2023-11-23 16:06:58,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 736. [2023-11-23 16:06:58,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 688 states have (on average 1.2209302325581395) internal successors, (840), 713 states have internal predecessors, (840), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 16:06:58,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 880 transitions. [2023-11-23 16:06:58,040 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 880 transitions. Word has length 105 [2023-11-23 16:06:58,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:58,040 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 880 transitions. [2023-11-23 16:06:58,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.545454545454545) internal successors, (171), 12 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 16:06:58,040 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 880 transitions. [2023-11-23 16:06:58,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-23 16:06:58,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:58,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2023-11-23 16:06:58,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-23 16:06:58,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-23 16:06:58,251 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:58,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1257976168, now seen corresponding path program 2 times [2023-11-23 16:06:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505625347] [2023-11-23 16:06:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:58,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:58,256 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:58,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176623158] [2023-11-23 16:06:58,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:06:58,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:58,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:58,257 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:58,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-23 16:06:58,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:06:58,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:06:58,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 16:06:58,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 24 proven. 46 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:58,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:06:58,722 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 24 proven. 46 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 16:06:58,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:58,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505625347] [2023-11-23 16:06:58,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:58,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176623158] [2023-11-23 16:06:58,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176623158] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:06:58,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:06:58,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-23 16:06:58,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670259866] [2023-11-23 16:06:58,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:06:58,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-23 16:06:58,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:58,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-23 16:06:58,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-11-23 16:06:58,724 INFO L87 Difference]: Start difference. First operand 736 states and 880 transitions. Second operand has 17 states, 16 states have (on average 11.4375) internal successors, (183), 17 states have internal predecessors, (183), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-23 16:06:59,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:59,198 INFO L93 Difference]: Finished difference Result 736 states and 880 transitions. [2023-11-23 16:06:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 16:06:59,199 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 11.4375) internal successors, (183), 17 states have internal predecessors, (183), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 107 [2023-11-23 16:06:59,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:59,200 INFO L225 Difference]: With dead ends: 736 [2023-11-23 16:06:59,200 INFO L226 Difference]: Without dead ends: 734 [2023-11-23 16:06:59,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2023-11-23 16:06:59,201 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 381 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:59,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 506 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:06:59,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-11-23 16:06:59,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 716. [2023-11-23 16:06:59,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 670 states have (on average 1.2119402985074628) internal successors, (812), 693 states have internal predecessors, (812), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 16:06:59,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 852 transitions. [2023-11-23 16:06:59,237 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 852 transitions. Word has length 107 [2023-11-23 16:06:59,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:59,237 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 852 transitions. [2023-11-23 16:06:59,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 11.4375) internal successors, (183), 17 states have internal predecessors, (183), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-23 16:06:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 852 transitions. [2023-11-23 16:06:59,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-23 16:06:59,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:59,237 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 16:06:59,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-23 16:06:59,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-11-23 16:06:59,438 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:06:59,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:06:59,438 INFO L85 PathProgramCache]: Analyzing trace with hash -74232489, now seen corresponding path program 1 times [2023-11-23 16:06:59,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:06:59,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092462637] [2023-11-23 16:06:59,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:59,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:06:59,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:06:59,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64176611] [2023-11-23 16:06:59,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:06:59,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:06:59,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:06:59,443 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:06:59,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-23 16:06:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:06:59,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 16:06:59,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:06:59,676 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-23 16:06:59,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:06:59,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:06:59,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092462637] [2023-11-23 16:06:59,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:06:59,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64176611] [2023-11-23 16:06:59,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64176611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:06:59,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:06:59,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 16:06:59,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868409582] [2023-11-23 16:06:59,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:06:59,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:06:59,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:06:59,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:06:59,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:06:59,678 INFO L87 Difference]: Start difference. First operand 716 states and 852 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:59,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:06:59,927 INFO L93 Difference]: Finished difference Result 717 states and 852 transitions. [2023-11-23 16:06:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 16:06:59,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 118 [2023-11-23 16:06:59,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:06:59,928 INFO L225 Difference]: With dead ends: 717 [2023-11-23 16:06:59,928 INFO L226 Difference]: Without dead ends: 648 [2023-11-23 16:06:59,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-23 16:06:59,929 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 99 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:06:59,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 263 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:06:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2023-11-23 16:06:59,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 648. [2023-11-23 16:06:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 604 states have (on average 1.2334437086092715) internal successors, (745), 627 states have internal predecessors, (745), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 16:06:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 781 transitions. [2023-11-23 16:06:59,963 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 781 transitions. Word has length 118 [2023-11-23 16:06:59,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:06:59,963 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 781 transitions. [2023-11-23 16:06:59,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 16:06:59,963 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 781 transitions. [2023-11-23 16:06:59,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-23 16:06:59,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:06:59,964 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2023-11-23 16:06:59,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2023-11-23 16:07:00,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:07:00,168 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:07:00,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:07:00,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1839062559, now seen corresponding path program 1 times [2023-11-23 16:07:00,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:07:00,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523240173] [2023-11-23 16:07:00,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:07:00,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:07:00,173 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:07:00,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824721876] [2023-11-23 16:07:00,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:07:00,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:07:00,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:07:00,175 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:07:00,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-23 16:07:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:07:00,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 16:07:00,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:07:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 16:07:00,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:07:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 16:07:00,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:07:00,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523240173] [2023-11-23 16:07:00,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:07:00,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824721876] [2023-11-23 16:07:00,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824721876] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:07:00,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:07:00,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-23 16:07:00,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944088374] [2023-11-23 16:07:00,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:07:00,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 16:07:00,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:07:00,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 16:07:00,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:07:00,687 INFO L87 Difference]: Start difference. First operand 648 states and 781 transitions. Second operand has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 12 states have internal predecessors, (189), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-23 16:07:01,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:07:01,319 INFO L93 Difference]: Finished difference Result 837 states and 954 transitions. [2023-11-23 16:07:01,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 16:07:01,319 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 12 states have internal predecessors, (189), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 119 [2023-11-23 16:07:01,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:07:01,320 INFO L225 Difference]: With dead ends: 837 [2023-11-23 16:07:01,320 INFO L226 Difference]: Without dead ends: 836 [2023-11-23 16:07:01,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2023-11-23 16:07:01,321 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 637 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 16:07:01,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 446 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 16:07:01,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2023-11-23 16:07:01,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 688. [2023-11-23 16:07:01,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 643 states have (on average 1.2332814930015552) internal successors, (793), 666 states have internal predecessors, (793), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 16:07:01,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 831 transitions. [2023-11-23 16:07:01,358 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 831 transitions. Word has length 119 [2023-11-23 16:07:01,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:07:01,358 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 831 transitions. [2023-11-23 16:07:01,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 12 states have internal predecessors, (189), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-23 16:07:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 831 transitions. [2023-11-23 16:07:01,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 16:07:01,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:07:01,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:07:01,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-23 16:07:01,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:07:01,559 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:07:01,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:07:01,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1756002568, now seen corresponding path program 1 times [2023-11-23 16:07:01,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:07:01,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012176661] [2023-11-23 16:07:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:07:01,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:07:01,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:07:01,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349352901] [2023-11-23 16:07:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:07:01,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:07:01,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:07:01,570 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:07:01,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-23 16:07:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:07:01,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 16:07:01,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:07:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 16:07:01,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:07:01,839 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 16:07:01,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:07:01,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012176661] [2023-11-23 16:07:01,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:07:01,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349352901] [2023-11-23 16:07:01,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349352901] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:07:01,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:07:01,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-23 16:07:01,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419815909] [2023-11-23 16:07:01,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:07:01,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 16:07:01,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:07:01,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 16:07:01,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-23 16:07:01,842 INFO L87 Difference]: Start difference. First operand 688 states and 831 transitions. Second operand has 14 states, 13 states have (on average 15.307692307692308) internal successors, (199), 14 states have internal predecessors, (199), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-23 16:07:02,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:07:02,084 INFO L93 Difference]: Finished difference Result 1486 states and 1807 transitions. [2023-11-23 16:07:02,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 16:07:02,084 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.307692307692308) internal successors, (199), 14 states have internal predecessors, (199), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 124 [2023-11-23 16:07:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:07:02,086 INFO L225 Difference]: With dead ends: 1486 [2023-11-23 16:07:02,086 INFO L226 Difference]: Without dead ends: 1464 [2023-11-23 16:07:02,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-11-23 16:07:02,087 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 311 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:07:02,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 779 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:07:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-11-23 16:07:02,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1229. [2023-11-23 16:07:02,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1168 states have (on average 1.2808219178082192) internal successors, (1496), 1191 states have internal predecessors, (1496), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 16:07:02,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1566 transitions. [2023-11-23 16:07:02,154 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1566 transitions. Word has length 124 [2023-11-23 16:07:02,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:07:02,155 INFO L495 AbstractCegarLoop]: Abstraction has 1229 states and 1566 transitions. [2023-11-23 16:07:02,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.307692307692308) internal successors, (199), 14 states have internal predecessors, (199), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-23 16:07:02,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1566 transitions. [2023-11-23 16:07:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 16:07:02,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:07:02,156 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:07:02,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-23 16:07:02,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-23 16:07:02,367 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:07:02,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:07:02,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1124290319, now seen corresponding path program 2 times [2023-11-23 16:07:02,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:07:02,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303948678] [2023-11-23 16:07:02,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:07:02,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:07:02,372 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:07:02,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861106905] [2023-11-23 16:07:02,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:07:02,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:07:02,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:07:02,373 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:07:02,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-23 16:07:02,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:07:02,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:07:02,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 16:07:02,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:07:02,816 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 40 proven. 77 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-23 16:07:02,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:07:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 40 proven. 77 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-23 16:07:03,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:07:03,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303948678] [2023-11-23 16:07:03,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:07:03,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861106905] [2023-11-23 16:07:03,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861106905] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:07:03,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:07:03,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2023-11-23 16:07:03,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117232159] [2023-11-23 16:07:03,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:07:03,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-23 16:07:03,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:07:03,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-23 16:07:03,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2023-11-23 16:07:03,144 INFO L87 Difference]: Start difference. First operand 1229 states and 1566 transitions. Second operand has 23 states, 23 states have (on average 9.0) internal successors, (207), 23 states have internal predecessors, (207), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2023-11-23 16:07:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:07:04,071 INFO L93 Difference]: Finished difference Result 1697 states and 2157 transitions. [2023-11-23 16:07:04,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-23 16:07:04,072 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.0) internal successors, (207), 23 states have internal predecessors, (207), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 132 [2023-11-23 16:07:04,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:07:04,073 INFO L225 Difference]: With dead ends: 1697 [2023-11-23 16:07:04,073 INFO L226 Difference]: Without dead ends: 734 [2023-11-23 16:07:04,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=454, Invalid=1802, Unknown=0, NotChecked=0, Total=2256 [2023-11-23 16:07:04,074 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 747 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 16:07:04,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 614 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 16:07:04,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-11-23 16:07:04,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 706. [2023-11-23 16:07:04,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 661 states have (on average 1.2723146747352496) internal successors, (841), 683 states have internal predecessors, (841), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 16:07:04,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 881 transitions. [2023-11-23 16:07:04,112 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 881 transitions. Word has length 132 [2023-11-23 16:07:04,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:07:04,113 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 881 transitions. [2023-11-23 16:07:04,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.0) internal successors, (207), 23 states have internal predecessors, (207), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2023-11-23 16:07:04,113 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 881 transitions. [2023-11-23 16:07:04,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-23 16:07:04,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:07:04,114 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-11-23 16:07:04,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2023-11-23 16:07:04,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-23 16:07:04,325 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:07:04,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:07:04,325 INFO L85 PathProgramCache]: Analyzing trace with hash -185818446, now seen corresponding path program 1 times [2023-11-23 16:07:04,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:07:04,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257597594] [2023-11-23 16:07:04,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:07:04,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:07:04,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:07:04,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731569198] [2023-11-23 16:07:04,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:07:04,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:07:04,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:07:04,332 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:07:04,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-23 16:07:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:07:04,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 16:07:04,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:07:04,769 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 16:07:04,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:07:05,264 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 16:07:05,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:07:05,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257597594] [2023-11-23 16:07:05,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:07:05,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731569198] [2023-11-23 16:07:05,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731569198] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:07:05,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:07:05,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-23 16:07:05,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747105821] [2023-11-23 16:07:05,265 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:07:05,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-23 16:07:05,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:07:05,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-23 16:07:05,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2023-11-23 16:07:05,266 INFO L87 Difference]: Start difference. First operand 706 states and 881 transitions. Second operand has 24 states, 24 states have (on average 9.958333333333334) internal successors, (239), 24 states have internal predecessors, (239), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-23 16:07:06,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:07:06,180 INFO L93 Difference]: Finished difference Result 731 states and 901 transitions. [2023-11-23 16:07:06,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 16:07:06,180 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.958333333333334) internal successors, (239), 24 states have internal predecessors, (239), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 150 [2023-11-23 16:07:06,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:07:06,181 INFO L225 Difference]: With dead ends: 731 [2023-11-23 16:07:06,181 INFO L226 Difference]: Without dead ends: 685 [2023-11-23 16:07:06,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=305, Invalid=1501, Unknown=0, NotChecked=0, Total=1806 [2023-11-23 16:07:06,182 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 172 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 16:07:06,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 862 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 16:07:06,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-11-23 16:07:06,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 682. [2023-11-23 16:07:06,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 637 states have (on average 1.2747252747252746) internal successors, (812), 659 states have internal predecessors, (812), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 16:07:06,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 852 transitions. [2023-11-23 16:07:06,219 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 852 transitions. Word has length 150 [2023-11-23 16:07:06,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:07:06,219 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 852 transitions. [2023-11-23 16:07:06,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.958333333333334) internal successors, (239), 24 states have internal predecessors, (239), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-23 16:07:06,220 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 852 transitions. [2023-11-23 16:07:06,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-23 16:07:06,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:07:06,220 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 16:07:06,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-23 16:07:06,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:07:06,423 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-23 16:07:06,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:07:06,423 INFO L85 PathProgramCache]: Analyzing trace with hash -670272554, now seen corresponding path program 2 times [2023-11-23 16:07:06,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:07:06,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973905945] [2023-11-23 16:07:06,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:07:06,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:07:06,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 16:07:06,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1562321020] [2023-11-23 16:07:06,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:07:06,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:07:06,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:07:06,429 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:07:06,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-23 16:07:06,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:07:06,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:07:06,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 16:07:06,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:07:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 53 proven. 149 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 16:07:06,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:07:07,067 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 78 proven. 124 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 16:07:07,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:07:07,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973905945] [2023-11-23 16:07:07,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 16:07:07,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562321020] [2023-11-23 16:07:07,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562321020] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:07:07,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 16:07:07,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-23 16:07:07,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648786442] [2023-11-23 16:07:07,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 16:07:07,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 16:07:07,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:07:07,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 16:07:07,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-23 16:07:07,069 INFO L87 Difference]: Start difference. First operand 682 states and 852 transitions. Second operand has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-23 16:07:07,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:07:07,378 INFO L93 Difference]: Finished difference Result 686 states and 855 transitions. [2023-11-23 16:07:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 16:07:07,379 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 166 [2023-11-23 16:07:07,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:07:07,379 INFO L225 Difference]: With dead ends: 686 [2023-11-23 16:07:07,379 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 16:07:07,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-11-23 16:07:07,380 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 103 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:07:07,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 423 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:07:07,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 16:07:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 16:07:07,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:07:07,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 16:07:07,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2023-11-23 16:07:07,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:07:07,381 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 16:07:07,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-23 16:07:07,381 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 16:07:07,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 58 remaining) [2023-11-23 16:07:07,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 58 remaining) [2023-11-23 16:07:07,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 58 remaining) [2023-11-23 16:07:07,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 58 remaining) [2023-11-23 16:07:07,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 58 remaining) [2023-11-23 16:07:07,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 58 remaining) [2023-11-23 16:07:07,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 58 remaining) [2023-11-23 16:07:07,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 58 remaining) [2023-11-23 16:07:07,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 58 remaining) [2023-11-23 16:07:07,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 58 remaining) [2023-11-23 16:07:07,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 58 remaining) [2023-11-23 16:07:07,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 58 remaining) [2023-11-23 16:07:07,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 58 remaining) [2023-11-23 16:07:07,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 58 remaining) [2023-11-23 16:07:07,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 58 remaining) [2023-11-23 16:07:07,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 58 remaining) [2023-11-23 16:07:07,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 58 remaining) [2023-11-23 16:07:07,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 58 remaining) [2023-11-23 16:07:07,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 58 remaining) [2023-11-23 16:07:07,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 58 remaining) [2023-11-23 16:07:07,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 58 remaining) [2023-11-23 16:07:07,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 58 remaining) [2023-11-23 16:07:07,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 58 remaining) [2023-11-23 16:07:07,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 58 remaining) [2023-11-23 16:07:07,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 58 remaining) [2023-11-23 16:07:07,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 58 remaining) [2023-11-23 16:07:07,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 58 remaining) [2023-11-23 16:07:07,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 58 remaining) [2023-11-23 16:07:07,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 58 remaining) [2023-11-23 16:07:07,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 58 remaining) [2023-11-23 16:07:07,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 58 remaining) [2023-11-23 16:07:07,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2023-11-23 16:07:07,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-23 16:07:07,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 16:07:11,078 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-6(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-7(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~X~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~Y~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~X~0#1|)) [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-8(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-9(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-10(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-11(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-12(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L899 garLoopResultBuilder]: For program point L35-13(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,079 INFO L895 garLoopResultBuilder]: At program point L35-14(line 35) the Hoare annotation is: (let ((.cse10 (+ |ULTIMATE.start_main_~v~0#1| 1))) (let ((.cse2 (= |ULTIMATE.start_main_~xy~0#1| 0)) (.cse3 (= .cse10 0)) (.cse4 (= |ULTIMATE.start_main_~y~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~Y~0#1| 0)) (.cse11 (= |ULTIMATE.start_main_~yx~0#1| 0)) (.cse1 (= 2 |ULTIMATE.start_main_~x~0#1|)) (.cse6 (= |ULTIMATE.start_main_~X~0#1| 1)) (.cse0 (div (* (- 1) |ULTIMATE.start_main_~yx~0#1|) 2)) (.cse7 (= (mod |ULTIMATE.start_main_~yx~0#1| 2) 0)) (.cse12 (= |ULTIMATE.start_main_~x~0#1| 1)) (.cse9 (<= 0 |ULTIMATE.start_main_~X~0#1|))) (or (and (= .cse0 0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (let ((.cse8 (* 2 |ULTIMATE.start_main_~Y~0#1|))) (and (<= |ULTIMATE.start_main_~Y~0#1| 1) .cse2 (<= 0 |ULTIMATE.start_main_~Y~0#1|) .cse4 (= .cse8 (+ |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~v~0#1|)) .cse9 (= |ULTIMATE.start_main_~x~0#1| 0) (<= .cse8 .cse10) .cse11)) (and .cse2 .cse3 .cse12 .cse4 .cse5 .cse6 .cse11) (and (<= 0 (+ .cse0 1)) .cse1 (<= |ULTIMATE.start_main_~xy~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~v~0#1| 1) (exists ((v_subst_11 Int) (v_subst_10 Int)) (and (<= 0 v_subst_11) (<= 1 v_subst_10) (<= (* v_subst_11 v_subst_10) |ULTIMATE.start_main_~xy~0#1|))) (= |ULTIMATE.start_main_~Y~0#1| 1) .cse6 (<= .cse0 0) .cse7) (and (= |ULTIMATE.start_main_~yx~0#1| |ULTIMATE.start_main_~Y~0#1|) (= (* |ULTIMATE.start_main_~Y~0#1| 4) (+ |ULTIMATE.start_main_~v~0#1| (* 3 |ULTIMATE.start_main_~X~0#1|))) .cse12 (= |ULTIMATE.start_main_~y~0#1| 1) (<= |ULTIMATE.start_main_~yx~0#1| 1) .cse9 (= |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~X~0#1|) (<= 0 |ULTIMATE.start_main_~v~0#1|))))) [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point L35-15(lines 32 47) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point L28-2(line 28) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-11-23 16:07:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 45) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 45) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 47) the Hoare annotation is: (let ((.cse4 (+ |ULTIMATE.start_main_~v~0#1| 1))) (let ((.cse0 (<= |ULTIMATE.start_main_~Y~0#1| 1)) (.cse7 (<= 0 |ULTIMATE.start_main_~yx~0#1|)) (.cse8 (= |ULTIMATE.start_main_~x~0#1| 1)) (.cse10 (<= |ULTIMATE.start_main_~yx~0#1| 1)) (.cse3 (<= 0 |ULTIMATE.start_main_~X~0#1|)) (.cse12 (= (mod |ULTIMATE.start_main_~yx~0#1| 2) 0)) (.cse5 (= |ULTIMATE.start_main_~xy~0#1| 0)) (.cse6 (= .cse4 0)) (.cse1 (= |ULTIMATE.start_main_~y~0#1| 0)) (.cse9 (= |ULTIMATE.start_main_~Y~0#1| 0)) (.cse13 (= 2 |ULTIMATE.start_main_~x~0#1|)) (.cse11 (= |ULTIMATE.start_main_~X~0#1| 1))) (or (let ((.cse2 (* 2 |ULTIMATE.start_main_~Y~0#1|))) (and .cse0 (<= 0 |ULTIMATE.start_main_~Y~0#1|) .cse1 (= .cse2 (+ |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~v~0#1|)) .cse3 (= |ULTIMATE.start_main_~x~0#1| 0) (<= .cse2 .cse4))) (and .cse5 .cse6 .cse7 .cse8 .cse1 .cse9 .cse10 .cse11 .cse12) (and .cse0 .cse5 (= (* |ULTIMATE.start_main_~Y~0#1| 4) (+ |ULTIMATE.start_main_~v~0#1| (* 3 |ULTIMATE.start_main_~X~0#1|))) .cse7 .cse8 (= |ULTIMATE.start_main_~y~0#1| 1) .cse10 .cse3 (<= 0 |ULTIMATE.start_main_~v~0#1|) .cse12) (and .cse13 .cse5 .cse6 .cse1 .cse9 .cse11 (<= 0 (+ 4611686018427387903 |ULTIMATE.start_main_~yx~0#1|)) (<= |ULTIMATE.start_main_~yx~0#1| 4611686018427387903)) (and .cse13 (= |ULTIMATE.start_main_~yx~0#1| 1) (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~v~0#1| 1) (= |ULTIMATE.start_main_~xy~0#1| 1) (= |ULTIMATE.start_main_~Y~0#1| 1) .cse11)))) [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point L32-3(lines 32 47) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L41-2(line 41) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L41-3(line 41) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~X~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~X~0#1| 2147483648))) [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50-2(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50-3(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50-4(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50-5(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50-6(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50-7(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50-8(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,082 INFO L899 garLoopResultBuilder]: For program point L50-9(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L50-10(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L50-11(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L50-12(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L50-13(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L50-14(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L50-15(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L50-16(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L50-17(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L902 garLoopResultBuilder]: At program point L50-18(line 50) the Hoare annotation is: true [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L50-19(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L43-2(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L43-3(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L43-4(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L43-5(line 43) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,083 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-23 16:07:11,084 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-11-23 16:07:11,084 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2023-11-23 16:07:11,084 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 12) no Hoare annotation was computed. [2023-11-23 16:07:11,084 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 10 12) no Hoare annotation was computed. [2023-11-23 16:07:11,084 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 17) no Hoare annotation was computed. [2023-11-23 16:07:11,084 INFO L899 garLoopResultBuilder]: For program point L14-2(lines 13 19) no Hoare annotation was computed. [2023-11-23 16:07:11,084 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 13 19) no Hoare annotation was computed. [2023-11-23 16:07:11,084 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 13 19) the Hoare annotation is: true [2023-11-23 16:07:11,086 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:07:11,087 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 16:07:11,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:07:11 BoogieIcfgContainer [2023-11-23 16:07:11,100 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 16:07:11,100 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 16:07:11,101 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 16:07:11,101 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 16:07:11,101 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:47" (3/4) ... [2023-11-23 16:07:11,102 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 16:07:11,105 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 16:07:11,105 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 16:07:11,110 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-23 16:07:11,110 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 16:07:11,110 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 16:07:11,111 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 16:07:11,191 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-23 16:07:11,191 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2023-11-23 16:07:11,191 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 16:07:11,191 INFO L158 Benchmark]: Toolchain (without parser) took 84711.19ms. Allocated memory was 136.3MB in the beginning and 453.0MB in the end (delta: 316.7MB). Free memory was 82.0MB in the beginning and 154.5MB in the end (delta: -72.5MB). Peak memory consumption was 246.2MB. Max. memory is 16.1GB. [2023-11-23 16:07:11,191 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 136.3MB. Free memory was 98.5MB in the beginning and 98.4MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 16:07:11,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.23ms. Allocated memory is still 136.3MB. Free memory was 81.8MB in the beginning and 71.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 16:07:11,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.03ms. Allocated memory is still 136.3MB. Free memory was 71.2MB in the beginning and 69.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 16:07:11,192 INFO L158 Benchmark]: Boogie Preprocessor took 33.47ms. Allocated memory is still 136.3MB. Free memory was 69.1MB in the beginning and 67.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 16:07:11,192 INFO L158 Benchmark]: RCFGBuilder took 415.63ms. Allocated memory is still 136.3MB. Free memory was 67.4MB in the beginning and 97.8MB in the end (delta: -30.5MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-11-23 16:07:11,192 INFO L158 Benchmark]: TraceAbstraction took 83929.90ms. Allocated memory was 136.3MB in the beginning and 453.0MB in the end (delta: 316.7MB). Free memory was 96.9MB in the beginning and 160.8MB in the end (delta: -63.9MB). Peak memory consumption was 263.2MB. Max. memory is 16.1GB. [2023-11-23 16:07:11,192 INFO L158 Benchmark]: Witness Printer took 90.64ms. Allocated memory is still 453.0MB. Free memory was 160.8MB in the beginning and 154.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 16:07:11,195 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 136.3MB. Free memory was 98.5MB in the beginning and 98.4MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.23ms. Allocated memory is still 136.3MB. Free memory was 81.8MB in the beginning and 71.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.03ms. Allocated memory is still 136.3MB. Free memory was 71.2MB in the beginning and 69.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.47ms. Allocated memory is still 136.3MB. Free memory was 69.1MB in the beginning and 67.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 415.63ms. Allocated memory is still 136.3MB. Free memory was 67.4MB in the beginning and 97.8MB in the end (delta: -30.5MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 83929.90ms. Allocated memory was 136.3MB in the beginning and 453.0MB in the end (delta: 316.7MB). Free memory was 96.9MB in the beginning and 160.8MB in the end (delta: -63.9MB). Peak memory consumption was 263.2MB. Max. memory is 16.1GB. * Witness Printer took 90.64ms. Allocated memory is still 453.0MB. Free memory was 160.8MB in the beginning and 154.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 136 locations, 58 error locations. Started 1 CEGAR loops. OverallTime: 83.9s, OverallIterations: 70, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 39.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27091 SdHoareTripleChecker+Valid, 21.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27049 mSDsluCounter, 23249 SdHoareTripleChecker+Invalid, 18.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18050 mSDsCounter, 964 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35955 IncrementalHoareTripleChecker+Invalid, 36919 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 964 mSolverCounterUnsat, 5199 mSDtfsCounter, 35955 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7901 GetRequests, 6817 SyntacticMatches, 4 SemanticMatches, 1080 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6499 ImplicationChecksByTransitivity, 21.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1544occurred in iteration=56, InterpolantAutomatonStates: 869, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 70 MinimizatonAttempts, 4691 StatesRemovedByMinimization, 60 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 100 PreInvPairs, 116 NumberOfFragments, 364 HoareAnnotationTreeSize, 100 FomulaSimplifications, 721582 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1074 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 22.6s InterpolantComputationTime, 4524 NumberOfCodeBlocks, 4524 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 7322 ConstructedInterpolants, 18 QuantifiedInterpolants, 60826 SizeOfPredicates, 199 NumberOfNonLiveVariables, 8172 ConjunctsInSsa, 585 ConjunctsInUnsatCore, 103 InterpolantComputations, 33 PerfectInterpolantSequences, 1215/3628 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 58 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((Y <= 1) && (0 <= Y)) && (y == 0)) && ((2 * Y) == (X + v))) && (0 <= X)) && (x == 0)) && ((2 * Y) <= (v + 1))) || (((((((((x == 0) && ((v + 1) == 0)) && (0 <= x)) && (x == 1)) && (y == 0)) && (Y == 0)) && (x <= 1)) && (X == 1)) && ((x % 2) == 0))) || ((((((((((Y <= 1) && (x == 0)) && ((Y * 4) == (v + (3 * X)))) && (0 <= x)) && (x == 1)) && (y == 1)) && (x <= 1)) && (0 <= X)) && (0 <= v)) && ((x % 2) == 0))) || ((((((((2 == x) && (x == 0)) && ((v + 1) == 0)) && (y == 0)) && (Y == 0)) && (X == 1)) && (0 <= (4611686018427387903 + x))) && (x <= 4611686018427387903))) || ((((((((2 == x) && (x == 1)) && (y <= 2)) && (1 <= y)) && (v == 1)) && (x == 1)) && (Y == 1)) && (X == 1))) RESULT: Ultimate proved your program to be correct! [2023-11-23 16:07:11,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE