/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-80.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:12:39,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:12:39,440 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:12:39,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:12:39,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:12:39,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:12:39,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:12:39,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:12:39,471 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:12:39,474 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:12:39,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:12:39,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:12:39,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:12:39,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:12:39,476 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:12:39,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:12:39,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:12:39,477 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:12:39,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:12:39,477 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:12:39,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:12:39,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:12:39,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:12:39,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:12:39,479 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:12:39,479 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:12:39,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:12:39,479 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:12:39,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:12:39,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:12:39,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:12:39,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:12:39,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:12:39,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:12:39,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:12:39,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:12:39,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:12:39,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:12:39,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:12:39,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:12:39,482 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:12:39,482 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:12:39,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:12:39,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:12:39,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:12:39,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:12:39,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:12:39,706 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:12:39,706 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:12:39,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-80.i [2023-12-15 21:12:40,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:12:41,001 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:12:41,002 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-80.i [2023-12-15 21:12:41,013 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac7ad46c/09ba7f33ef3146688d70841b0894d7c9/FLAG9554128d6 [2023-12-15 21:12:41,025 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac7ad46c/09ba7f33ef3146688d70841b0894d7c9 [2023-12-15 21:12:41,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:12:41,028 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:12:41,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:12:41,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:12:41,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:12:41,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b585a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41, skipping insertion in model container [2023-12-15 21:12:41,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,076 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:12:41,175 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-80.i[916,929] [2023-12-15 21:12:41,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:12:41,293 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:12:41,308 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-80.i[916,929] [2023-12-15 21:12:41,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:12:41,383 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:12:41,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41 WrapperNode [2023-12-15 21:12:41,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:12:41,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:12:41,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:12:41,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:12:41,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,448 INFO L138 Inliner]: procedures = 26, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 387 [2023-12-15 21:12:41,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:12:41,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:12:41,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:12:41,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:12:41,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,461 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,511 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]. [2023-12-15 21:12:41,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:12:41,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:12:41,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:12:41,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:12:41,541 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (1/1) ... [2023-12-15 21:12:41,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:12:41,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:41,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 21:12:41,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 21:12:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:12:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:12:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:12:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:12:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:12:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:12:41,713 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:12:41,715 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:12:42,229 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:12:42,289 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:12:42,289 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:12:42,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:12:42 BoogieIcfgContainer [2023-12-15 21:12:42,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:12:42,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:12:42,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:12:42,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:12:42,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:12:41" (1/3) ... [2023-12-15 21:12:42,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21402843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:12:42, skipping insertion in model container [2023-12-15 21:12:42,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:41" (2/3) ... [2023-12-15 21:12:42,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21402843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:12:42, skipping insertion in model container [2023-12-15 21:12:42,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:12:42" (3/3) ... [2023-12-15 21:12:42,297 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-80.i [2023-12-15 21:12:42,311 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:12:42,311 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:12:42,358 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:12:42,364 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;@6f038779, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:12:42,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:12:42,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 108 states have (on average 1.5185185185185186) internal successors, (164), 109 states have internal predecessors, (164), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-15 21:12:42,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2023-12-15 21:12:42,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:42,395 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:42,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:42,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:42,400 INFO L85 PathProgramCache]: Analyzing trace with hash 248286090, now seen corresponding path program 1 times [2023-12-15 21:12:42,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:42,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949637569] [2023-12-15 21:12:42,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:42,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:42,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:42,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949637569] [2023-12-15 21:12:42,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:12:42,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348963705] [2023-12-15 21:12:42,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:42,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:42,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:42,699 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) [2023-12-15 21:12:42,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:12:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:42,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:12:42,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:43,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4608 trivial. 0 not checked. [2023-12-15 21:12:43,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:43,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348963705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:43,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:43,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:12:43,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200180035] [2023-12-15 21:12:43,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:43,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:12:43,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:43,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:12:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:12:43,078 INFO L87 Difference]: Start difference. First operand has 160 states, 108 states have (on average 1.5185185185185186) internal successors, (164), 109 states have internal predecessors, (164), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-15 21:12:43,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:43,131 INFO L93 Difference]: Finished difference Result 317 states and 571 transitions. [2023-12-15 21:12:43,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:12:43,134 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 2 states have call successors, (49) Word has length 312 [2023-12-15 21:12:43,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:43,143 INFO L225 Difference]: With dead ends: 317 [2023-12-15 21:12:43,143 INFO L226 Difference]: Without dead ends: 158 [2023-12-15 21:12:43,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:12:43,153 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:43,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:12:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-15 21:12:43,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-12-15 21:12:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 107 states have (on average 1.4766355140186915) internal successors, (158), 107 states have internal predecessors, (158), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-15 21:12:43,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 256 transitions. [2023-12-15 21:12:43,206 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 256 transitions. Word has length 312 [2023-12-15 21:12:43,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:43,206 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 256 transitions. [2023-12-15 21:12:43,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-15 21:12:43,207 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 256 transitions. [2023-12-15 21:12:43,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2023-12-15 21:12:43,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:43,211 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:43,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 21:12:43,420 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,SelfDestructingSolverStorable0 [2023-12-15 21:12:43,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:43,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:43,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1384689856, now seen corresponding path program 1 times [2023-12-15 21:12:43,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:43,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370423211] [2023-12-15 21:12:43,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:43,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:43,503 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:43,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675309243] [2023-12-15 21:12:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:43,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:43,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:43,516 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) [2023-12-15 21:12:43,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:12:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:43,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:12:43,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:44,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-15 21:12:44,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:44,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:44,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370423211] [2023-12-15 21:12:44,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:44,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675309243] [2023-12-15 21:12:44,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675309243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:44,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:44,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:12:44,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499964419] [2023-12-15 21:12:44,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:44,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:12:44,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:44,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:12:44,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:12:44,100 INFO L87 Difference]: Start difference. First operand 158 states and 256 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-15 21:12:44,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:44,295 INFO L93 Difference]: Finished difference Result 508 states and 821 transitions. [2023-12-15 21:12:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 21:12:44,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 312 [2023-12-15 21:12:44,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:44,299 INFO L225 Difference]: With dead ends: 508 [2023-12-15 21:12:44,299 INFO L226 Difference]: Without dead ends: 351 [2023-12-15 21:12:44,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:12:44,300 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 330 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:44,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 746 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:12:44,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-15 21:12:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 312. [2023-12-15 21:12:44,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 211 states have (on average 1.4739336492890995) internal successors, (311), 211 states have internal predecessors, (311), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-15 21:12:44,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 507 transitions. [2023-12-15 21:12:44,329 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 507 transitions. Word has length 312 [2023-12-15 21:12:44,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:44,329 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 507 transitions. [2023-12-15 21:12:44,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-15 21:12:44,330 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 507 transitions. [2023-12-15 21:12:44,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-15 21:12:44,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:44,333 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:44,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:44,539 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,SelfDestructingSolverStorable1 [2023-12-15 21:12:44,540 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:44,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:44,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1178102353, now seen corresponding path program 1 times [2023-12-15 21:12:44,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:44,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796037782] [2023-12-15 21:12:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:44,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:44,582 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:44,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005672579] [2023-12-15 21:12:44,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:44,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:44,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:44,584 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) [2023-12-15 21:12:44,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:12:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:44,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 21:12:44,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:44,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-15 21:12:44,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:44,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:44,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796037782] [2023-12-15 21:12:44,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:44,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005672579] [2023-12-15 21:12:44,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005672579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:44,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:44,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:12:44,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327987937] [2023-12-15 21:12:44,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:44,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:12:44,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:44,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:12:44,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:12:44,862 INFO L87 Difference]: Start difference. First operand 312 states and 507 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-15 21:12:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:44,920 INFO L93 Difference]: Finished difference Result 748 states and 1210 transitions. [2023-12-15 21:12:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:12:44,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 313 [2023-12-15 21:12:44,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:44,924 INFO L225 Difference]: With dead ends: 748 [2023-12-15 21:12:44,924 INFO L226 Difference]: Without dead ends: 437 [2023-12-15 21:12:44,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:12:44,925 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 78 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 516 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 [2023-12-15 21:12:44,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 516 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:12:44,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-12-15 21:12:44,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 433. [2023-12-15 21:12:44,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 326 states have (on average 1.5061349693251533) internal successors, (491), 328 states have internal predecessors, (491), 102 states have call successors, (102), 4 states have call predecessors, (102), 4 states have return successors, (102), 100 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-15 21:12:44,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 695 transitions. [2023-12-15 21:12:44,953 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 695 transitions. Word has length 313 [2023-12-15 21:12:44,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:44,954 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 695 transitions. [2023-12-15 21:12:44,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-15 21:12:44,954 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 695 transitions. [2023-12-15 21:12:44,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-15 21:12:44,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:44,957 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:44,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:45,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:45,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:45,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1373816184, now seen corresponding path program 1 times [2023-12-15 21:12:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:45,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332323526] [2023-12-15 21:12:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:45,201 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:45,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227967298] [2023-12-15 21:12:45,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:45,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:45,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:45,203 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) [2023-12-15 21:12:45,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:12:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:45,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 21:12:45,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-15 21:12:45,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:45,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332323526] [2023-12-15 21:12:45,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227967298] [2023-12-15 21:12:45,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227967298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:45,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:45,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:12:45,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073881756] [2023-12-15 21:12:45,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:45,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:12:45,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:45,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:12:45,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:12:45,700 INFO L87 Difference]: Start difference. First operand 433 states and 695 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-15 21:12:46,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:46,246 INFO L93 Difference]: Finished difference Result 1809 states and 2897 transitions. [2023-12-15 21:12:46,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:12:46,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 314 [2023-12-15 21:12:46,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:46,253 INFO L225 Difference]: With dead ends: 1809 [2023-12-15 21:12:46,253 INFO L226 Difference]: Without dead ends: 1377 [2023-12-15 21:12:46,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:12:46,256 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 715 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:46,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1353 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 21:12:46,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2023-12-15 21:12:46,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 942. [2023-12-15 21:12:46,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 733 states have (on average 1.5225102319236017) internal successors, (1116), 735 states have internal predecessors, (1116), 200 states have call successors, (200), 8 states have call predecessors, (200), 8 states have return successors, (200), 198 states have call predecessors, (200), 200 states have call successors, (200) [2023-12-15 21:12:46,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1516 transitions. [2023-12-15 21:12:46,388 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1516 transitions. Word has length 314 [2023-12-15 21:12:46,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:46,391 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1516 transitions. [2023-12-15 21:12:46,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-15 21:12:46,391 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1516 transitions. [2023-12-15 21:12:46,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-15 21:12:46,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:46,394 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:46,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:46,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:46,595 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:46,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:46,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1980446426, now seen corresponding path program 1 times [2023-12-15 21:12:46,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:46,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689610767] [2023-12-15 21:12:46,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:46,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:46,642 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:46,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904176277] [2023-12-15 21:12:46,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:46,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:46,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:46,660 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) [2023-12-15 21:12:46,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 21:12:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:46,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 21:12:46,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-15 21:12:47,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:47,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:47,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689610767] [2023-12-15 21:12:47,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:47,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904176277] [2023-12-15 21:12:47,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904176277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:47,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:47,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:12:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036540911] [2023-12-15 21:12:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:47,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:12:47,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:12:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:12:47,591 INFO L87 Difference]: Start difference. First operand 942 states and 1516 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-15 21:12:47,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:47,676 INFO L93 Difference]: Finished difference Result 2394 states and 3853 transitions. [2023-12-15 21:12:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:12:47,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 315 [2023-12-15 21:12:47,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:47,682 INFO L225 Difference]: With dead ends: 2394 [2023-12-15 21:12:47,682 INFO L226 Difference]: Without dead ends: 1453 [2023-12-15 21:12:47,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:12:47,684 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 112 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:47,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 740 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:12:47,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2023-12-15 21:12:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1451. [2023-12-15 21:12:47,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1140 states have (on average 1.5201754385964912) internal successors, (1733), 1142 states have internal predecessors, (1733), 298 states have call successors, (298), 12 states have call predecessors, (298), 12 states have return successors, (298), 296 states have call predecessors, (298), 298 states have call successors, (298) [2023-12-15 21:12:47,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2329 transitions. [2023-12-15 21:12:47,774 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2329 transitions. Word has length 315 [2023-12-15 21:12:47,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:47,775 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2329 transitions. [2023-12-15 21:12:47,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-15 21:12:47,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2329 transitions. [2023-12-15 21:12:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-15 21:12:47,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:47,778 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:47,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:47,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:47,985 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:47,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:47,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1612920996, now seen corresponding path program 1 times [2023-12-15 21:12:47,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:47,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732328207] [2023-12-15 21:12:47,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:47,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:48,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:48,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427312469] [2023-12-15 21:12:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:48,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:48,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:48,029 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) [2023-12-15 21:12:48,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 21:12:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:48,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 21:12:48,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:48,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 1588 proven. 114 refuted. 0 times theorem prover too weak. 3002 trivial. 0 not checked. [2023-12-15 21:12:48,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:12:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 30 proven. 114 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2023-12-15 21:12:48,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:48,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732328207] [2023-12-15 21:12:48,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:48,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427312469] [2023-12-15 21:12:48,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427312469] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:12:48,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:12:48,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-15 21:12:48,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103946581] [2023-12-15 21:12:48,701 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:12:48,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 21:12:48,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:48,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 21:12:48,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:12:48,703 INFO L87 Difference]: Start difference. First operand 1451 states and 2329 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2023-12-15 21:12:49,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:49,157 INFO L93 Difference]: Finished difference Result 2937 states and 4687 transitions. [2023-12-15 21:12:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 21:12:49,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 315 [2023-12-15 21:12:49,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:49,185 INFO L225 Difference]: With dead ends: 2937 [2023-12-15 21:12:49,186 INFO L226 Difference]: Without dead ends: 1487 [2023-12-15 21:12:49,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 620 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-15 21:12:49,189 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 201 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:49,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 630 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 21:12:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2023-12-15 21:12:49,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1475. [2023-12-15 21:12:49,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1158 states have (on average 1.498272884283247) internal successors, (1735), 1160 states have internal predecessors, (1735), 298 states have call successors, (298), 18 states have call predecessors, (298), 18 states have return successors, (298), 296 states have call predecessors, (298), 298 states have call successors, (298) [2023-12-15 21:12:49,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2331 transitions. [2023-12-15 21:12:49,358 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2331 transitions. Word has length 315 [2023-12-15 21:12:49,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:49,358 INFO L495 AbstractCegarLoop]: Abstraction has 1475 states and 2331 transitions. [2023-12-15 21:12:49,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2023-12-15 21:12:49,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2331 transitions. [2023-12-15 21:12:49,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-15 21:12:49,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:49,378 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:49,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-15 21:12:49,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:49,585 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:49,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:49,586 INFO L85 PathProgramCache]: Analyzing trace with hash -226717602, now seen corresponding path program 1 times [2023-12-15 21:12:49,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:49,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106083518] [2023-12-15 21:12:49,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:49,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:49,617 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:49,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345945049] [2023-12-15 21:12:49,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:49,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:49,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:49,618 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) [2023-12-15 21:12:49,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 21:12:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:49,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-15 21:12:49,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 1541 proven. 48 refuted. 0 times theorem prover too weak. 3115 trivial. 0 not checked. [2023-12-15 21:12:50,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:12:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 117 proven. 27 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2023-12-15 21:12:50,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:50,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106083518] [2023-12-15 21:12:50,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:50,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345945049] [2023-12-15 21:12:50,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345945049] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:12:50,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:12:50,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2023-12-15 21:12:50,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084003217] [2023-12-15 21:12:50,381 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:12:50,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-15 21:12:50,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:50,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-15 21:12:50,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-12-15 21:12:50,382 INFO L87 Difference]: Start difference. First operand 1475 states and 2331 transitions. Second operand has 15 states, 15 states have (on average 8.0) internal successors, (120), 14 states have internal predecessors, (120), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) [2023-12-15 21:12:51,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:51,162 INFO L93 Difference]: Finished difference Result 3521 states and 5442 transitions. [2023-12-15 21:12:51,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 21:12:51,164 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.0) internal successors, (120), 14 states have internal predecessors, (120), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) Word has length 315 [2023-12-15 21:12:51,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:51,178 INFO L225 Difference]: With dead ends: 3521 [2023-12-15 21:12:51,178 INFO L226 Difference]: Without dead ends: 2047 [2023-12-15 21:12:51,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2023-12-15 21:12:51,183 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 414 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:51,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1113 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 21:12:51,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2023-12-15 21:12:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2015. [2023-12-15 21:12:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 1434 states have (on average 1.399581589958159) internal successors, (2007), 1442 states have internal predecessors, (2007), 532 states have call successors, (532), 48 states have call predecessors, (532), 48 states have return successors, (532), 524 states have call predecessors, (532), 532 states have call successors, (532) [2023-12-15 21:12:51,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 3071 transitions. [2023-12-15 21:12:51,348 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 3071 transitions. Word has length 315 [2023-12-15 21:12:51,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:51,350 INFO L495 AbstractCegarLoop]: Abstraction has 2015 states and 3071 transitions. [2023-12-15 21:12:51,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.0) internal successors, (120), 14 states have internal predecessors, (120), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) [2023-12-15 21:12:51,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 3071 transitions. [2023-12-15 21:12:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-15 21:12:51,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:51,353 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:51,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:51,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:51,560 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:51,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:51,561 INFO L85 PathProgramCache]: Analyzing trace with hash 860250826, now seen corresponding path program 1 times [2023-12-15 21:12:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:51,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277271208] [2023-12-15 21:12:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:51,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:51,637 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:51,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684300879] [2023-12-15 21:12:51,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:51,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:51,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:51,638 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) [2023-12-15 21:12:51,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 21:12:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:51,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 21:12:51,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:52,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 420 proven. 138 refuted. 0 times theorem prover too weak. 4146 trivial. 0 not checked. [2023-12-15 21:12:52,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:12:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 6 proven. 138 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2023-12-15 21:12:52,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277271208] [2023-12-15 21:12:52,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684300879] [2023-12-15 21:12:52,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684300879] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:12:52,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:12:52,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-15 21:12:52,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675735557] [2023-12-15 21:12:52,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:12:52,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:12:52,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:52,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:12:52,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:12:52,327 INFO L87 Difference]: Start difference. First operand 2015 states and 3071 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-12-15 21:12:52,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:52,638 INFO L93 Difference]: Finished difference Result 3366 states and 5087 transitions. [2023-12-15 21:12:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:12:52,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 315 [2023-12-15 21:12:52,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:52,643 INFO L225 Difference]: With dead ends: 3366 [2023-12-15 21:12:52,643 INFO L226 Difference]: Without dead ends: 1352 [2023-12-15 21:12:52,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 622 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:12:52,648 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 229 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:52,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 452 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:12:52,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2023-12-15 21:12:52,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1324. [2023-12-15 21:12:52,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 947 states have (on average 1.3801478352692713) internal successors, (1307), 948 states have internal predecessors, (1307), 333 states have call successors, (333), 43 states have call predecessors, (333), 43 states have return successors, (333), 332 states have call predecessors, (333), 333 states have call successors, (333) [2023-12-15 21:12:52,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1973 transitions. [2023-12-15 21:12:52,744 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1973 transitions. Word has length 315 [2023-12-15 21:12:52,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:52,745 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 1973 transitions. [2023-12-15 21:12:52,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-12-15 21:12:52,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1973 transitions. [2023-12-15 21:12:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-15 21:12:52,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:52,748 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:52,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:52,955 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,SelfDestructingSolverStorable7 [2023-12-15 21:12:52,955 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:52,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:52,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1499801508, now seen corresponding path program 1 times [2023-12-15 21:12:52,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:52,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702934603] [2023-12-15 21:12:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:52,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:52,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:52,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177129365] [2023-12-15 21:12:52,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:52,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:52,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:53,008 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) [2023-12-15 21:12:53,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-15 21:12:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:53,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-15 21:12:53,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:54,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 3468 proven. 345 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2023-12-15 21:12:54,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:12:58,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 315 proven. 375 refuted. 0 times theorem prover too weak. 4014 trivial. 0 not checked. [2023-12-15 21:12:58,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:58,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702934603] [2023-12-15 21:12:58,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:58,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177129365] [2023-12-15 21:12:58,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177129365] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:12:58,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:12:58,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2023-12-15 21:12:58,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617505673] [2023-12-15 21:12:58,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:12:58,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-15 21:12:58,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:58,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-15 21:12:58,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=1372, Unknown=0, NotChecked=0, Total=1722 [2023-12-15 21:12:58,706 INFO L87 Difference]: Start difference. First operand 1324 states and 1973 transitions. Second operand has 42 states, 41 states have (on average 3.7560975609756095) internal successors, (154), 40 states have internal predecessors, (154), 11 states have call successors, (86), 6 states have call predecessors, (86), 15 states have return successors, (87), 11 states have call predecessors, (87), 11 states have call successors, (87) [2023-12-15 21:13:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:13:08,772 INFO L93 Difference]: Finished difference Result 6960 states and 10028 transitions. [2023-12-15 21:13:08,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-12-15 21:13:08,773 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.7560975609756095) internal successors, (154), 40 states have internal predecessors, (154), 11 states have call successors, (86), 6 states have call predecessors, (86), 15 states have return successors, (87), 11 states have call predecessors, (87), 11 states have call successors, (87) Word has length 316 [2023-12-15 21:13:08,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:13:08,791 INFO L225 Difference]: With dead ends: 6960 [2023-12-15 21:13:08,791 INFO L226 Difference]: Without dead ends: 5713 [2023-12-15 21:13:08,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5199 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=3673, Invalid=13619, Unknown=0, NotChecked=0, Total=17292 [2023-12-15 21:13:08,799 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 2872 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 3195 mSolverCounterSat, 674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2892 SdHoareTripleChecker+Valid, 2737 SdHoareTripleChecker+Invalid, 3869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 674 IncrementalHoareTripleChecker+Valid, 3195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-15 21:13:08,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2892 Valid, 2737 Invalid, 3869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [674 Valid, 3195 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-15 21:13:08,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5713 states. [2023-12-15 21:13:09,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5713 to 2942. [2023-12-15 21:13:09,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 2214 states have (on average 1.358175248419151) internal successors, (3007), 2224 states have internal predecessors, (3007), 573 states have call successors, (573), 154 states have call predecessors, (573), 154 states have return successors, (573), 563 states have call predecessors, (573), 573 states have call successors, (573) [2023-12-15 21:13:09,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 4153 transitions. [2023-12-15 21:13:09,142 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 4153 transitions. Word has length 316 [2023-12-15 21:13:09,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:13:09,142 INFO L495 AbstractCegarLoop]: Abstraction has 2942 states and 4153 transitions. [2023-12-15 21:13:09,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.7560975609756095) internal successors, (154), 40 states have internal predecessors, (154), 11 states have call successors, (86), 6 states have call predecessors, (86), 15 states have return successors, (87), 11 states have call predecessors, (87), 11 states have call successors, (87) [2023-12-15 21:13:09,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 4153 transitions. [2023-12-15 21:13:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-15 21:13:09,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:13:09,145 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:13:09,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-15 21:13:09,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:13:09,351 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:13:09,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:13:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash -90382970, now seen corresponding path program 1 times [2023-12-15 21:13:09,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:13:09,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097439682] [2023-12-15 21:13:09,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:09,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:13:09,386 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:13:09,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216883286] [2023-12-15 21:13:09,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:09,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:13:09,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:13:09,387 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) [2023-12-15 21:13:09,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-15 21:13:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:13:10,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-15 21:13:10,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:13:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 3080 proven. 231 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2023-12-15 21:13:11,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-15 21:13:49,381 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:13:49,382 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:13:49,392 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:13:49,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-15 21:13:49,592 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,SelfDestructingSolverStorable9 [2023-12-15 21:13:49,593 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 317 with TraceHistMax 49,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 21 known predicates. [2023-12-15 21:13:49,596 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:13:49,598 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:13:49,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:13:49 BoogieIcfgContainer [2023-12-15 21:13:49,600 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:13:49,600 INFO L158 Benchmark]: Toolchain (without parser) took 68572.80ms. Allocated memory was 175.1MB in the beginning and 725.6MB in the end (delta: 550.5MB). Free memory was 124.4MB in the beginning and 467.5MB in the end (delta: -343.1MB). Peak memory consumption was 208.7MB. Max. memory is 8.0GB. [2023-12-15 21:13:49,601 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 175.1MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:13:49,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.39ms. Allocated memory is still 175.1MB. Free memory was 124.1MB in the beginning and 100.7MB in the end (delta: 23.4MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-15 21:13:49,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.69ms. Allocated memory is still 175.1MB. Free memory was 100.7MB in the beginning and 92.9MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-15 21:13:49,601 INFO L158 Benchmark]: Boogie Preprocessor took 91.01ms. Allocated memory was 175.1MB in the beginning and 278.9MB in the end (delta: 103.8MB). Free memory was 92.9MB in the beginning and 240.4MB in the end (delta: -147.5MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. [2023-12-15 21:13:49,601 INFO L158 Benchmark]: RCFGBuilder took 749.10ms. Allocated memory is still 278.9MB. Free memory was 240.4MB in the beginning and 185.9MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2023-12-15 21:13:49,601 INFO L158 Benchmark]: TraceAbstraction took 67309.10ms. Allocated memory was 278.9MB in the beginning and 725.6MB in the end (delta: 446.7MB). Free memory was 185.4MB in the beginning and 467.5MB in the end (delta: -282.1MB). Peak memory consumption was 164.6MB. Max. memory is 8.0GB. [2023-12-15 21:13:49,602 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 175.1MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 353.39ms. Allocated memory is still 175.1MB. Free memory was 124.1MB in the beginning and 100.7MB in the end (delta: 23.4MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.69ms. Allocated memory is still 175.1MB. Free memory was 100.7MB in the beginning and 92.9MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 91.01ms. Allocated memory was 175.1MB in the beginning and 278.9MB in the end (delta: 103.8MB). Free memory was 92.9MB in the beginning and 240.4MB in the end (delta: -147.5MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. * RCFGBuilder took 749.10ms. Allocated memory is still 278.9MB. Free memory was 240.4MB in the beginning and 185.9MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. * TraceAbstraction took 67309.10ms. Allocated memory was 278.9MB in the beginning and 725.6MB in the end (delta: 446.7MB). Free memory was 185.4MB in the beginning and 467.5MB in the end (delta: -282.1MB). Peak memory consumption was 164.6MB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 317 with TraceHistMax 49,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 21 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.3s, OverallIterations: 10, TraceHistogramMax: 49, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5061 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4951 mSDsluCounter, 8540 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6055 mSDsCounter, 908 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5611 IncrementalHoareTripleChecker+Invalid, 6519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 908 mSolverCounterUnsat, 2485 mSDtfsCounter, 5611 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4199 GetRequests, 4013 SyntacticMatches, 2 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5308 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2942occurred in iteration=9, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 3323 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 3139 NumberOfCodeBlocks, 3139 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 4075 ConstructedInterpolants, 0 QuantifiedInterpolants, 18679 SizeOfPredicates, 38 NumberOfNonLiveVariables, 6522 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 59853/61152 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown