/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-97.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:13:52,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:13:52,392 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 21:13:52,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:13:52,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:13:52,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:13:52,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:13:52,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:13:52,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:13:52,426 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:13:52,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:13:52,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:13:52,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:13:52,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:13:52,427 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:13:52,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:13:52,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:13:52,427 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:13:52,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:13:52,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:13:52,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:13:52,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:13:52,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:13:52,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:13:52,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:13:52,429 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:13:52,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:13:52,429 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:13:52,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:13:52,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:13:52,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:13:52,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:13:52,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:13:52,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:13:52,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:13:52,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:13:52,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:13:52,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:13:52,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:13:52,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:13:52,431 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:13:52,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:13:52,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:13:52,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:13:52,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:13:52,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:13:52,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:13:52,655 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:13:52,655 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:13:52,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-97.i [2023-12-15 21:13:53,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:13:53,907 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:13:53,907 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-97.i [2023-12-15 21:13:53,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a8cf6ee1/1124e5174f5a4bb5999e34519be6fb79/FLAG4c1567054 [2023-12-15 21:13:53,922 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a8cf6ee1/1124e5174f5a4bb5999e34519be6fb79 [2023-12-15 21:13:53,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:13:53,924 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:13:53,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:13:53,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:13:53,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:13:53,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:13:53" (1/1) ... [2023-12-15 21:13:53,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d87f6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:53, skipping insertion in model container [2023-12-15 21:13:53,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:13:53" (1/1) ... [2023-12-15 21:13:53,954 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:13:54,082 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-97.i[916,929] [2023-12-15 21:13:54,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:13:54,174 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:13:54,182 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-97.i[916,929] [2023-12-15 21:13:54,227 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:13:54,239 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:13:54,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54 WrapperNode [2023-12-15 21:13:54,240 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:13:54,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:13:54,241 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:13:54,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:13:54,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,335 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 460 [2023-12-15 21:13:54,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:13:54,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:13:54,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:13:54,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:13:54,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,363 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,393 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 21:13:54,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:13:54,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:13:54,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:13:54,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:13:54,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (1/1) ... [2023-12-15 21:13:54,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:13:54,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:13:54,533 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 21:13:54,551 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 21:13:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:13:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:13:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:13:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:13:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:13:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:13:54,671 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:13:54,673 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:13:55,202 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:13:55,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:13:55,236 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:13:55,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:13:55 BoogieIcfgContainer [2023-12-15 21:13:55,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:13:55,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:13:55,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:13:55,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:13:55,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:13:53" (1/3) ... [2023-12-15 21:13:55,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46583aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:13:55, skipping insertion in model container [2023-12-15 21:13:55,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:13:54" (2/3) ... [2023-12-15 21:13:55,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46583aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:13:55, skipping insertion in model container [2023-12-15 21:13:55,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:13:55" (3/3) ... [2023-12-15 21:13:55,242 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-97.i [2023-12-15 21:13:55,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:13:55,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:13:55,289 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:13:55,294 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;@24ce40b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:13:55,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:13:55,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 125 states have (on average 1.6) internal successors, (200), 126 states have internal predecessors, (200), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-15 21:13:55,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-15 21:13:55,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:13:55,316 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:55,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:13:55,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:13:55,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1401524006, now seen corresponding path program 1 times [2023-12-15 21:13:55,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:13:55,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932787577] [2023-12-15 21:13:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:55,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:13:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:13:55,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:13:55,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932787577] [2023-12-15 21:13:55,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:13:55,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579887655] [2023-12-15 21:13:55,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:55,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:13:55,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:13:55,629 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 21:13:55,657 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 21:13:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:13:55,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:13:55,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:13:55,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2023-12-15 21:13:55,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:13:55,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579887655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:13:55,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:13:55,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:13:55,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777107768] [2023-12-15 21:13:55,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:13:55,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:13:55,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:13:55,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:13:55,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:13:55,963 INFO L87 Difference]: Start difference. First operand has 171 states, 125 states have (on average 1.6) internal successors, (200), 126 states have internal predecessors, (200), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-15 21:13:56,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:13:56,005 INFO L93 Difference]: Finished difference Result 339 states and 613 transitions. [2023-12-15 21:13:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:13:56,007 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) Word has length 285 [2023-12-15 21:13:56,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:13:56,013 INFO L225 Difference]: With dead ends: 339 [2023-12-15 21:13:56,013 INFO L226 Difference]: Without dead ends: 169 [2023-12-15 21:13:56,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 284 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 21:13:56,018 INFO L413 NwaCegarLoop]: 278 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, 278 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 21:13:56,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 278 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:13:56,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-15 21:13:56,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2023-12-15 21:13:56,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 124 states have (on average 1.5725806451612903) internal successors, (195), 124 states have internal predecessors, (195), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-15 21:13:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 281 transitions. [2023-12-15 21:13:56,056 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 281 transitions. Word has length 285 [2023-12-15 21:13:56,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:13:56,056 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 281 transitions. [2023-12-15 21:13:56,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-15 21:13:56,057 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 281 transitions. [2023-12-15 21:13:56,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-15 21:13:56,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:13:56,061 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:56,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:13:56,270 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 21:13:56,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:13:56,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:13:56,271 INFO L85 PathProgramCache]: Analyzing trace with hash -300027356, now seen corresponding path program 1 times [2023-12-15 21:13:56,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:13:56,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572473550] [2023-12-15 21:13:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:56,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:13:56,351 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:13:56,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582239572] [2023-12-15 21:13:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:56,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:13:56,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:13:56,356 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 21:13:56,382 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 21:13:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:13:56,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 21:13:56,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:13:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1846 proven. 60 refuted. 0 times theorem prover too weak. 1706 trivial. 0 not checked. [2023-12-15 21:13:56,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:13:56,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 66 proven. 60 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2023-12-15 21:13:56,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:13:56,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572473550] [2023-12-15 21:13:56,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:13:56,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582239572] [2023-12-15 21:13:56,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582239572] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:13:56,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:13:56,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-15 21:13:56,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281007638] [2023-12-15 21:13:56,922 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:13:56,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:13:56,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:13:56,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:13:56,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:13:56,927 INFO L87 Difference]: Start difference. First operand 169 states and 281 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, (63), 2 states have call predecessors, (63), 4 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2023-12-15 21:13:57,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:13:57,171 INFO L93 Difference]: Finished difference Result 339 states and 558 transitions. [2023-12-15 21:13:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:13:57,171 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, (63), 2 states have call predecessors, (63), 4 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 285 [2023-12-15 21:13:57,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:13:57,178 INFO L225 Difference]: With dead ends: 339 [2023-12-15 21:13:57,178 INFO L226 Difference]: Without dead ends: 171 [2023-12-15 21:13:57,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 562 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 21:13:57,182 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 196 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:13:57,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 559 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:13:57,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-12-15 21:13:57,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2023-12-15 21:13:57,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 123 states have (on average 1.5284552845528456) internal successors, (188), 123 states have internal predecessors, (188), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-15 21:13:57,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 274 transitions. [2023-12-15 21:13:57,209 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 274 transitions. Word has length 285 [2023-12-15 21:13:57,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:13:57,210 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 274 transitions. [2023-12-15 21:13:57,210 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, (63), 2 states have call predecessors, (63), 4 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2023-12-15 21:13:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 274 transitions. [2023-12-15 21:13:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-15 21:13:57,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:13:57,214 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:57,222 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 21:13:57,420 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 21:13:57,421 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:13:57,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:13:57,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1268177718, now seen corresponding path program 1 times [2023-12-15 21:13:57,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:13:57,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013545887] [2023-12-15 21:13:57,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:57,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:13:57,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:13:57,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390116952] [2023-12-15 21:13:57,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:57,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:13:57,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:13:57,459 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 21:13:57,494 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 21:13:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:13:57,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 21:13:57,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:13:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1342 proven. 96 refuted. 0 times theorem prover too weak. 2174 trivial. 0 not checked. [2023-12-15 21:13:57,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:13:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 30 proven. 96 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2023-12-15 21:13:58,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:13:58,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013545887] [2023-12-15 21:13:58,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:13:58,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390116952] [2023-12-15 21:13:58,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390116952] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:13:58,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:13:58,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-15 21:13:58,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116198580] [2023-12-15 21:13:58,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:13:58,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:13:58,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:13:58,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:13:58,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:13:58,095 INFO L87 Difference]: Start difference. First operand 169 states and 274 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2023-12-15 21:13:58,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:13:58,320 INFO L93 Difference]: Finished difference Result 343 states and 552 transitions. [2023-12-15 21:13:58,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:13:58,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 286 [2023-12-15 21:13:58,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:13:58,322 INFO L225 Difference]: With dead ends: 343 [2023-12-15 21:13:58,322 INFO L226 Difference]: Without dead ends: 175 [2023-12-15 21:13:58,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:13:58,323 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 151 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:13:58,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 546 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:13:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-12-15 21:13:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2023-12-15 21:13:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 126 states have (on average 1.507936507936508) internal successors, (190), 126 states have internal predecessors, (190), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-15 21:13:58,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 276 transitions. [2023-12-15 21:13:58,335 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 276 transitions. Word has length 286 [2023-12-15 21:13:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:13:58,335 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 276 transitions. [2023-12-15 21:13:58,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2023-12-15 21:13:58,336 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 276 transitions. [2023-12-15 21:13:58,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-15 21:13:58,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:13:58,338 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:58,361 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 21:13:58,544 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 21:13:58,545 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:13:58,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:13:58,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1690879544, now seen corresponding path program 1 times [2023-12-15 21:13:58,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:13:58,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363316802] [2023-12-15 21:13:58,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:58,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:13:58,573 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:13:58,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900811296] [2023-12-15 21:13:58,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:58,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:13:58,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:13:58,575 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 21:13:58,597 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 21:13:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:13:58,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-15 21:13:58,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:13:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-15 21:13:59,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:13:59,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:13:59,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363316802] [2023-12-15 21:13:59,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:13:59,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900811296] [2023-12-15 21:13:59,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900811296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:13:59,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:13:59,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:13:59,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757011257] [2023-12-15 21:13:59,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:13:59,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:13:59,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:13:59,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:13:59,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:13:59,021 INFO L87 Difference]: Start difference. First operand 173 states and 276 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-15 21:13:59,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:13:59,507 INFO L93 Difference]: Finished difference Result 950 states and 1522 transitions. [2023-12-15 21:13:59,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:13:59,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 286 [2023-12-15 21:13:59,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:13:59,512 INFO L225 Difference]: With dead ends: 950 [2023-12-15 21:13:59,512 INFO L226 Difference]: Without dead ends: 778 [2023-12-15 21:13:59,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:13:59,513 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 1041 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 21:13:59,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1649 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 21:13:59,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2023-12-15 21:13:59,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 483. [2023-12-15 21:13:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 344 states have (on average 1.5145348837209303) internal successors, (521), 344 states have internal predecessors, (521), 129 states have call successors, (129), 9 states have call predecessors, (129), 9 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2023-12-15 21:13:59,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 779 transitions. [2023-12-15 21:13:59,560 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 779 transitions. Word has length 286 [2023-12-15 21:13:59,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:13:59,561 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 779 transitions. [2023-12-15 21:13:59,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-15 21:13:59,561 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 779 transitions. [2023-12-15 21:13:59,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-15 21:13:59,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:13:59,563 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:59,571 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 21:13:59,769 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 21:13:59,770 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:13:59,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:13:59,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1965639158, now seen corresponding path program 1 times [2023-12-15 21:13:59,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:13:59,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932005625] [2023-12-15 21:13:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:59,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:13:59,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:13:59,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420273702] [2023-12-15 21:13:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:59,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:13:59,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:13:59,828 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 21:13:59,829 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 21:13:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:13:59,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-15 21:13:59,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:14:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-15 21:14:00,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:14:00,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:14:00,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932005625] [2023-12-15 21:14:00,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:14:00,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420273702] [2023-12-15 21:14:00,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420273702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:14:00,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:14:00,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:14:00,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339556765] [2023-12-15 21:14:00,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:14:00,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:14:00,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:14:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:14:00,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:14:00,174 INFO L87 Difference]: Start difference. First operand 483 states and 779 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-15 21:14:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:14:00,283 INFO L93 Difference]: Finished difference Result 671 states and 1081 transitions. [2023-12-15 21:14:00,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:14:00,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 286 [2023-12-15 21:14:00,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:14:00,285 INFO L225 Difference]: With dead ends: 671 [2023-12-15 21:14:00,286 INFO L226 Difference]: Without dead ends: 272 [2023-12-15 21:14:00,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 283 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 21:14:00,287 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 322 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:14:00,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 252 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:14:00,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-12-15 21:14:00,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2023-12-15 21:14:00,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 179 states have (on average 1.4134078212290502) internal successors, (253), 179 states have internal predecessors, (253), 86 states have call successors, (86), 6 states have call predecessors, (86), 6 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-15 21:14:00,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 425 transitions. [2023-12-15 21:14:00,311 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 425 transitions. Word has length 286 [2023-12-15 21:14:00,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:14:00,312 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 425 transitions. [2023-12-15 21:14:00,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-15 21:14:00,312 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 425 transitions. [2023-12-15 21:14:00,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-12-15 21:14:00,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:14:00,314 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:00,320 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 21:14:00,520 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 21:14:00,520 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:14:00,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:14:00,521 INFO L85 PathProgramCache]: Analyzing trace with hash 322008380, now seen corresponding path program 1 times [2023-12-15 21:14:00,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:14:00,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744117102] [2023-12-15 21:14:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:00,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:14:00,568 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:14:00,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537176633] [2023-12-15 21:14:00,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:00,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:14:00,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:14:00,570 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 21:14:00,592 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 21:14:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:14:00,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 21:14:00,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:14:00,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-15 21:14:00,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:14:00,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:14:00,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744117102] [2023-12-15 21:14:00,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:14:00,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537176633] [2023-12-15 21:14:00,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537176633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:14:00,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:14:00,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:14:00,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744217470] [2023-12-15 21:14:00,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:14:00,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:14:00,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:14:00,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:14:00,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:14:00,998 INFO L87 Difference]: Start difference. First operand 272 states and 425 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-15 21:14:01,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:14:01,088 INFO L93 Difference]: Finished difference Result 618 states and 968 transitions. [2023-12-15 21:14:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 21:14:01,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 287 [2023-12-15 21:14:01,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:14:01,092 INFO L225 Difference]: With dead ends: 618 [2023-12-15 21:14:01,092 INFO L226 Difference]: Without dead ends: 448 [2023-12-15 21:14:01,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:14:01,093 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 410 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:14:01,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 747 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:14:01,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-12-15 21:14:01,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 439. [2023-12-15 21:14:01,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 300 states have (on average 1.4266666666666667) internal successors, (428), 300 states have internal predecessors, (428), 129 states have call successors, (129), 9 states have call predecessors, (129), 9 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2023-12-15 21:14:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 686 transitions. [2023-12-15 21:14:01,127 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 686 transitions. Word has length 287 [2023-12-15 21:14:01,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:14:01,128 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 686 transitions. [2023-12-15 21:14:01,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-15 21:14:01,128 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 686 transitions. [2023-12-15 21:14:01,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-12-15 21:14:01,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:14:01,131 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:01,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 21:14:01,337 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 21:14:01,338 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:14:01,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:14:01,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2035212086, now seen corresponding path program 1 times [2023-12-15 21:14:01,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:14:01,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935002030] [2023-12-15 21:14:01,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:01,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:14:01,366 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:14:01,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065329776] [2023-12-15 21:14:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:01,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:14:01,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:14:01,368 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 21:14:01,407 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 21:14:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:14:01,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-15 21:14:01,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:14:02,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 2285 proven. 87 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2023-12-15 21:14:02,213 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:14:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 273 proven. 96 refuted. 0 times theorem prover too weak. 3243 trivial. 0 not checked. [2023-12-15 21:14:02,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:14:02,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935002030] [2023-12-15 21:14:02,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:14:02,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065329776] [2023-12-15 21:14:02,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065329776] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:14:02,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:14:02,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-15 21:14:02,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623877819] [2023-12-15 21:14:02,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:14:02,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-15 21:14:02,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:14:02,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-15 21:14:02,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2023-12-15 21:14:02,734 INFO L87 Difference]: Start difference. First operand 439 states and 686 transitions. Second operand has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 8 states have call successors, (86), 5 states have call predecessors, (86), 11 states have return successors, (86), 8 states have call predecessors, (86), 8 states have call successors, (86) [2023-12-15 21:14:05,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:14:05,957 INFO L93 Difference]: Finished difference Result 2259 states and 3458 transitions. [2023-12-15 21:14:05,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-15 21:14:05,958 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 8 states have call successors, (86), 5 states have call predecessors, (86), 11 states have return successors, (86), 8 states have call predecessors, (86), 8 states have call successors, (86) Word has length 287 [2023-12-15 21:14:05,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:14:05,965 INFO L225 Difference]: With dead ends: 2259 [2023-12-15 21:14:05,965 INFO L226 Difference]: Without dead ends: 1922 [2023-12-15 21:14:05,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1699 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1350, Invalid=3762, Unknown=0, NotChecked=0, Total=5112 [2023-12-15 21:14:05,968 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 4760 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 1322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 3331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1322 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:14:05,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 2384 Invalid, 3331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1322 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 21:14:05,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2023-12-15 21:14:06,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1071. [2023-12-15 21:14:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 783 states have (on average 1.421455938697318) internal successors, (1113), 786 states have internal predecessors, (1113), 255 states have call successors, (255), 32 states have call predecessors, (255), 32 states have return successors, (255), 252 states have call predecessors, (255), 255 states have call successors, (255) [2023-12-15 21:14:06,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1623 transitions. [2023-12-15 21:14:06,041 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1623 transitions. Word has length 287 [2023-12-15 21:14:06,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:14:06,041 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1623 transitions. [2023-12-15 21:14:06,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 8 states have call successors, (86), 5 states have call predecessors, (86), 11 states have return successors, (86), 8 states have call predecessors, (86), 8 states have call successors, (86) [2023-12-15 21:14:06,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1623 transitions. [2023-12-15 21:14:06,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-12-15 21:14:06,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:14:06,044 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:06,050 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 21:14:06,250 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 21:14:06,251 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:14:06,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:14:06,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1141725748, now seen corresponding path program 1 times [2023-12-15 21:14:06,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:14:06,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132484254] [2023-12-15 21:14:06,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:06,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:14:06,300 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:14:06,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661164520] [2023-12-15 21:14:06,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:06,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:14:06,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:14:06,303 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 21:14:06,316 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 21:14:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:14:06,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-15 21:14:06,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:14:07,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 548 proven. 237 refuted. 0 times theorem prover too weak. 2827 trivial. 0 not checked. [2023-12-15 21:14:07,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:14:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 9 proven. 240 refuted. 0 times theorem prover too weak. 3363 trivial. 0 not checked. [2023-12-15 21:14:07,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:14:07,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132484254] [2023-12-15 21:14:07,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:14:07,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661164520] [2023-12-15 21:14:07,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661164520] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:14:07,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:14:07,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-15 21:14:07,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445832044] [2023-12-15 21:14:07,642 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:14:07,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 21:14:07,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:14:07,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 21:14:07,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-12-15 21:14:07,644 INFO L87 Difference]: Start difference. First operand 1071 states and 1623 transitions. Second operand has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 14 states have internal predecessors, (118), 5 states have call successors, (85), 3 states have call predecessors, (85), 7 states have return successors, (86), 4 states have call predecessors, (86), 5 states have call successors, (86) [2023-12-15 21:14:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:14:08,245 INFO L93 Difference]: Finished difference Result 2142 states and 3195 transitions. [2023-12-15 21:14:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 21:14:08,246 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 14 states have internal predecessors, (118), 5 states have call successors, (85), 3 states have call predecessors, (85), 7 states have return successors, (86), 4 states have call predecessors, (86), 5 states have call successors, (86) Word has length 287 [2023-12-15 21:14:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:14:08,252 INFO L225 Difference]: With dead ends: 2142 [2023-12-15 21:14:08,252 INFO L226 Difference]: Without dead ends: 1161 [2023-12-15 21:14:08,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=240, Unknown=0, NotChecked=0, Total=380 [2023-12-15 21:14:08,256 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 152 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 21:14:08,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 648 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 21:14:08,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2023-12-15 21:14:08,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1127. [2023-12-15 21:14:08,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 825 states have (on average 1.387878787878788) internal successors, (1145), 828 states have internal predecessors, (1145), 255 states have call successors, (255), 46 states have call predecessors, (255), 46 states have return successors, (255), 252 states have call predecessors, (255), 255 states have call successors, (255) [2023-12-15 21:14:08,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1655 transitions. [2023-12-15 21:14:08,324 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1655 transitions. Word has length 287 [2023-12-15 21:14:08,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:14:08,324 INFO L495 AbstractCegarLoop]: Abstraction has 1127 states and 1655 transitions. [2023-12-15 21:14:08,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 14 states have internal predecessors, (118), 5 states have call successors, (85), 3 states have call predecessors, (85), 7 states have return successors, (86), 4 states have call predecessors, (86), 5 states have call successors, (86) [2023-12-15 21:14:08,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1655 transitions. [2023-12-15 21:14:08,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-12-15 21:14:08,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:14:08,327 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:08,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-15 21:14:08,533 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 21:14:08,533 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:14:08,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:14:08,534 INFO L85 PathProgramCache]: Analyzing trace with hash 248592302, now seen corresponding path program 1 times [2023-12-15 21:14:08,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:14:08,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219033569] [2023-12-15 21:14:08,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:08,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:14:08,557 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:14:08,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475411247] [2023-12-15 21:14:08,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:08,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:14:08,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:14:08,559 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 21:14:08,580 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 21:14:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:14:08,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-15 21:14:08,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:14:09,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-15 21:14:09,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:14:09,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:14:09,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219033569] [2023-12-15 21:14:09,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:14:09,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475411247] [2023-12-15 21:14:09,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475411247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:14:09,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:14:09,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:14:09,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698707652] [2023-12-15 21:14:09,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:14:09,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:14:09,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:14:09,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:14:09,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:14:09,006 INFO L87 Difference]: Start difference. First operand 1127 states and 1655 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-15 21:14:09,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:14:09,212 INFO L93 Difference]: Finished difference Result 2634 states and 3928 transitions. [2023-12-15 21:14:09,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:14:09,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 288 [2023-12-15 21:14:09,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:14:09,217 INFO L225 Difference]: With dead ends: 2634 [2023-12-15 21:14:09,217 INFO L226 Difference]: Without dead ends: 1605 [2023-12-15 21:14:09,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:14:09,220 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 303 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:14:09,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1378 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:14:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2023-12-15 21:14:09,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1171. [2023-12-15 21:14:09,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 869 states have (on average 1.3935558112773303) internal successors, (1211), 871 states have internal predecessors, (1211), 255 states have call successors, (255), 46 states have call predecessors, (255), 46 states have return successors, (255), 253 states have call predecessors, (255), 255 states have call successors, (255) [2023-12-15 21:14:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1721 transitions. [2023-12-15 21:14:09,295 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1721 transitions. Word has length 288 [2023-12-15 21:14:09,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:14:09,295 INFO L495 AbstractCegarLoop]: Abstraction has 1171 states and 1721 transitions. [2023-12-15 21:14:09,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-15 21:14:09,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1721 transitions. [2023-12-15 21:14:09,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-12-15 21:14:09,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:14:09,297 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:09,317 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 21:14:09,517 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 21:14:09,518 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:14:09,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:14:09,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1123214996, now seen corresponding path program 1 times [2023-12-15 21:14:09,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:14:09,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393368184] [2023-12-15 21:14:09,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:09,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:14:09,542 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:14:09,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013834650] [2023-12-15 21:14:09,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:09,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:14:09,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:14:09,545 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 21:14:09,574 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 21:14:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:14:09,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-15 21:14:09,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:14:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1891 proven. 483 refuted. 0 times theorem prover too weak. 1238 trivial. 0 not checked. [2023-12-15 21:14:11,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:14:13,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 189 proven. 411 refuted. 0 times theorem prover too weak. 3012 trivial. 0 not checked. [2023-12-15 21:14:13,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:14:13,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393368184] [2023-12-15 21:14:13,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:14:13,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013834650] [2023-12-15 21:14:13,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013834650] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:14:13,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:14:13,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 38 [2023-12-15 21:14:13,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642937088] [2023-12-15 21:14:13,971 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:14:13,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-15 21:14:13,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:14:13,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-15 21:14:13,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=984, Unknown=0, NotChecked=0, Total=1406 [2023-12-15 21:14:13,973 INFO L87 Difference]: Start difference. First operand 1171 states and 1721 transitions. Second operand has 38 states, 35 states have (on average 4.828571428571428) internal successors, (169), 32 states have internal predecessors, (169), 12 states have call successors, (86), 7 states have call predecessors, (86), 14 states have return successors, (86), 12 states have call predecessors, (86), 12 states have call successors, (86) [2023-12-15 21:14:18,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-15 21:14:40,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:14:40,388 INFO L93 Difference]: Finished difference Result 8591 states and 12370 transitions. [2023-12-15 21:14:40,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-12-15 21:14:40,390 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 35 states have (on average 4.828571428571428) internal successors, (169), 32 states have internal predecessors, (169), 12 states have call successors, (86), 7 states have call predecessors, (86), 14 states have return successors, (86), 12 states have call predecessors, (86), 12 states have call successors, (86) Word has length 288 [2023-12-15 21:14:40,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:14:40,431 INFO L225 Difference]: With dead ends: 8591 [2023-12-15 21:14:40,431 INFO L226 Difference]: Without dead ends: 7562 [2023-12-15 21:14:40,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4059 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=2996, Invalid=6316, Unknown=0, NotChecked=0, Total=9312 [2023-12-15 21:14:40,439 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 4794 mSDsluCounter, 3558 mSDsCounter, 0 mSdLazyCounter, 3306 mSolverCounterSat, 1277 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4812 SdHoareTripleChecker+Valid, 3772 SdHoareTripleChecker+Invalid, 4584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1277 IncrementalHoareTripleChecker+Valid, 3306 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-12-15 21:14:40,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4812 Valid, 3772 Invalid, 4584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1277 Valid, 3306 Invalid, 1 Unknown, 0 Unchecked, 14.9s Time] [2023-12-15 21:14:40,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7562 states. [2023-12-15 21:14:40,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7562 to 3532. [2023-12-15 21:14:40,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2703 states have (on average 1.3788383277839438) internal successors, (3727), 2711 states have internal predecessors, (3727), 659 states have call successors, (659), 169 states have call predecessors, (659), 169 states have return successors, (659), 651 states have call predecessors, (659), 659 states have call successors, (659) [2023-12-15 21:14:40,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 5045 transitions. [2023-12-15 21:14:40,845 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 5045 transitions. Word has length 288 [2023-12-15 21:14:40,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:14:40,846 INFO L495 AbstractCegarLoop]: Abstraction has 3532 states and 5045 transitions. [2023-12-15 21:14:40,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 35 states have (on average 4.828571428571428) internal successors, (169), 32 states have internal predecessors, (169), 12 states have call successors, (86), 7 states have call predecessors, (86), 14 states have return successors, (86), 12 states have call predecessors, (86), 12 states have call successors, (86) [2023-12-15 21:14:40,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 5045 transitions. [2023-12-15 21:14:40,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-12-15 21:14:40,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:14:40,848 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:40,855 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 21:14:41,054 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 21:14:41,055 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:14:41,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:14:41,055 INFO L85 PathProgramCache]: Analyzing trace with hash 678239643, now seen corresponding path program 1 times [2023-12-15 21:14:41,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:14:41,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233717469] [2023-12-15 21:14:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:41,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:14:41,084 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:14:41,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607536592] [2023-12-15 21:14:41,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:41,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:14:41,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:14:41,087 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:14:41,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-15 21:14:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:14:41,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-15 21:14:41,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:14:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 2366 proven. 366 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2023-12-15 21:14:42,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:14:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 204 proven. 396 refuted. 0 times theorem prover too weak. 3012 trivial. 0 not checked. [2023-12-15 21:14:44,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:14:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233717469] [2023-12-15 21:14:44,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:14:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607536592] [2023-12-15 21:14:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607536592] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:14:44,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:14:44,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2023-12-15 21:14:44,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595284178] [2023-12-15 21:14:44,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:14:44,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-15 21:14:44,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:14:44,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-15 21:14:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=992, Unknown=0, NotChecked=0, Total=1406 [2023-12-15 21:14:44,671 INFO L87 Difference]: Start difference. First operand 3532 states and 5045 transitions. Second operand has 38 states, 36 states have (on average 4.75) internal successors, (171), 34 states have internal predecessors, (171), 11 states have call successors, (77), 6 states have call predecessors, (77), 14 states have return successors, (78), 11 states have call predecessors, (78), 11 states have call successors, (78) [2023-12-15 21:14:48,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-15 21:14:56,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-15 21:14:57,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:14:57,124 INFO L93 Difference]: Finished difference Result 15830 states and 21917 transitions. [2023-12-15 21:14:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-15 21:14:57,125 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 4.75) internal successors, (171), 34 states have internal predecessors, (171), 11 states have call successors, (77), 6 states have call predecessors, (77), 14 states have return successors, (78), 11 states have call predecessors, (78), 11 states have call successors, (78) Word has length 289 [2023-12-15 21:14:57,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:14:57,174 INFO L225 Difference]: With dead ends: 15830 [2023-12-15 21:14:57,174 INFO L226 Difference]: Without dead ends: 12460 [2023-12-15 21:14:57,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1498 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1906, Invalid=3794, Unknown=0, NotChecked=0, Total=5700 [2023-12-15 21:14:57,183 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 2790 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 408 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-12-15 21:14:57,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2798 Valid, 1293 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 1132 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2023-12-15 21:14:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12460 states. [2023-12-15 21:14:57,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12460 to 3894. [2023-12-15 21:14:57,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 3098 states have (on average 1.3841187863137507) internal successors, (4288), 3102 states have internal predecessors, (4288), 591 states have call successors, (591), 204 states have call predecessors, (591), 204 states have return successors, (591), 587 states have call predecessors, (591), 591 states have call successors, (591) [2023-12-15 21:14:57,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 5470 transitions. [2023-12-15 21:14:57,731 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 5470 transitions. Word has length 289 [2023-12-15 21:14:57,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:14:57,731 INFO L495 AbstractCegarLoop]: Abstraction has 3894 states and 5470 transitions. [2023-12-15 21:14:57,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 4.75) internal successors, (171), 34 states have internal predecessors, (171), 11 states have call successors, (77), 6 states have call predecessors, (77), 14 states have return successors, (78), 11 states have call predecessors, (78), 11 states have call successors, (78) [2023-12-15 21:14:57,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 5470 transitions. [2023-12-15 21:14:57,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-12-15 21:14:57,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:14:57,734 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:57,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-15 21:14:57,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-15 21:14:57,941 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:14:57,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:14:57,941 INFO L85 PathProgramCache]: Analyzing trace with hash -332877607, now seen corresponding path program 1 times [2023-12-15 21:14:57,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:14:57,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608296860] [2023-12-15 21:14:57,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:57,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:14:57,983 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:14:57,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1267055252] [2023-12-15 21:14:57,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:14:57,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:14:57,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:14:57,997 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:14:58,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-15 21:14:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:14:59,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-15 21:14:59,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-15 21:15:01,433 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 21:15:01,433 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:15:01,435 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:15:01,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-15 21:15:01,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-15 21:15:01,636 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 290 with TraceHistMax 43,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 21 known predicates. [2023-12-15 21:15:01,639 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:15:01,641 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:15:01,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:15:01 BoogieIcfgContainer [2023-12-15 21:15:01,642 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:15:01,642 INFO L158 Benchmark]: Toolchain (without parser) took 67718.10ms. Allocated memory was 189.8MB in the beginning and 695.2MB in the end (delta: 505.4MB). Free memory was 144.0MB in the beginning and 611.0MB in the end (delta: -467.0MB). Peak memory consumption was 40.0MB. Max. memory is 8.0GB. [2023-12-15 21:15:01,643 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 189.8MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:15:01,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.75ms. Allocated memory is still 189.8MB. Free memory was 143.6MB in the beginning and 120.2MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-15 21:15:01,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.67ms. Allocated memory is still 189.8MB. Free memory was 120.2MB in the beginning and 111.1MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-15 21:15:01,643 INFO L158 Benchmark]: Boogie Preprocessor took 148.11ms. Allocated memory was 189.8MB in the beginning and 310.4MB in the end (delta: 120.6MB). Free memory was 111.1MB in the beginning and 276.7MB in the end (delta: -165.6MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. [2023-12-15 21:15:01,643 INFO L158 Benchmark]: RCFGBuilder took 746.47ms. Allocated memory is still 310.4MB. Free memory was 276.7MB in the beginning and 215.3MB in the end (delta: 61.3MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2023-12-15 21:15:01,643 INFO L158 Benchmark]: TraceAbstraction took 66404.55ms. Allocated memory was 310.4MB in the beginning and 695.2MB in the end (delta: 384.8MB). Free memory was 214.8MB in the beginning and 611.0MB in the end (delta: -396.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:15:01,644 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 189.8MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 314.75ms. Allocated memory is still 189.8MB. Free memory was 143.6MB in the beginning and 120.2MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 94.67ms. Allocated memory is still 189.8MB. Free memory was 120.2MB in the beginning and 111.1MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 148.11ms. Allocated memory was 189.8MB in the beginning and 310.4MB in the end (delta: 120.6MB). Free memory was 111.1MB in the beginning and 276.7MB in the end (delta: -165.6MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. * RCFGBuilder took 746.47ms. Allocated memory is still 310.4MB. Free memory was 276.7MB in the beginning and 215.3MB in the end (delta: 61.3MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * TraceAbstraction took 66404.55ms. Allocated memory was 310.4MB in the beginning and 695.2MB in the end (delta: 384.8MB). Free memory was 214.8MB in the beginning and 611.0MB in the end (delta: -396.1MB). There was no memory consumed. 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 290 with TraceHistMax 43,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 21 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 171 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.4s, OverallIterations: 12, TraceHistogramMax: 43, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 44.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 14999 SdHoareTripleChecker+Valid, 28.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14919 mSDsluCounter, 13506 SdHoareTripleChecker+Invalid, 26.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10784 mSDsCounter, 3488 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7879 IncrementalHoareTripleChecker+Invalid, 11370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3488 mSolverCounterUnsat, 2722 mSDtfsCounter, 7879 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5057 GetRequests, 4758 SyntacticMatches, 1 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7326 ImplicationChecksByTransitivity, 15.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3894occurred in iteration=11, InterpolantAutomatonStates: 231, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 14223 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 3439 NumberOfCodeBlocks, 3439 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 4859 ConstructedInterpolants, 0 QuantifiedInterpolants, 27599 SizeOfPredicates, 65 NumberOfNonLiveVariables, 7812 ConjunctsInSsa, 167 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 58776/61404 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