/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_variablewrapping_wrapper-s_file-19.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:44:08,250 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:44:08,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 15:44:08,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:44:08,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:44:08,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:44:08,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:44:08,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:44:08,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:44:08,345 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:44:08,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:44:08,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:44:08,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:44:08,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:44:08,347 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:44:08,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:44:08,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:44:08,347 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:44:08,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:44:08,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:44:08,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:44:08,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:44:08,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:44:08,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:44:08,349 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:44:08,349 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:44:08,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:44:08,349 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:44:08,349 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:44:08,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:44:08,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:44:08,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:44:08,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:44:08,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:44:08,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:44:08,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:44:08,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:44:08,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:44:08,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:44:08,351 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:44:08,351 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:44:08,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:44:08,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:44:08,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:44:08,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:44:08,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:44:08,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:44:08,547 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:44:08,548 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:44:08,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i [2023-12-19 15:44:09,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:44:09,663 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:44:09,664 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i [2023-12-19 15:44:09,672 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba319c17b/d06fdfd689d142e493878b8fb59aeaaf/FLAG0dd300a86 [2023-12-19 15:44:09,683 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba319c17b/d06fdfd689d142e493878b8fb59aeaaf [2023-12-19 15:44:09,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:44:09,685 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:44:09,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:44:09,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:44:09,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:44:09,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:09,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f04285e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09, skipping insertion in model container [2023-12-19 15:44:09,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:09,719 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:44:09,834 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_variablewrapping_wrapper-s_file-19.i[916,929] [2023-12-19 15:44:09,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:44:09,888 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:44:09,901 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_variablewrapping_wrapper-s_file-19.i[916,929] [2023-12-19 15:44:09,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:44:09,946 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:44:09,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09 WrapperNode [2023-12-19 15:44:09,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:44:09,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:44:09,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:44:09,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:44:09,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:09,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:09,997 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 456 [2023-12-19 15:44:09,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:44:09,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:44:09,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:44:09,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:44:10,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,023 INFO L175 MemorySlicer]: Split 124 memory accesses to 2 slices as follows [2, 122]. 98 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 12]. The 15 writes are split as follows [0, 15]. [2023-12-19 15:44:10,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,040 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:44:10,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:44:10,044 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:44:10,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:44:10,045 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (1/1) ... [2023-12-19 15:44:10,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:44:10,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:10,081 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) [2023-12-19 15:44:10,128 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 [2023-12-19 15:44:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:44:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:44:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:44:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:44:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:44:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:44:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:44:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:44:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:44:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:44:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:44:10,234 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:44:10,235 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:44:10,581 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:44:10,608 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:44:10,608 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:44:10,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:44:10 BoogieIcfgContainer [2023-12-19 15:44:10,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:44:10,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:44:10,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:44:10,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:44:10,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:44:09" (1/3) ... [2023-12-19 15:44:10,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3027da1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:44:10, skipping insertion in model container [2023-12-19 15:44:10,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:09" (2/3) ... [2023-12-19 15:44:10,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3027da1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:44:10, skipping insertion in model container [2023-12-19 15:44:10,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:44:10" (3/3) ... [2023-12-19 15:44:10,614 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-19.i [2023-12-19 15:44:10,626 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:44:10,626 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:44:10,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:44:10,659 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;@3489bfd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:44:10,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:44:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 73 states have (on average 1.4383561643835616) internal successors, (105), 74 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-19 15:44:10,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-19 15:44:10,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:10,671 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:10,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:10,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:10,675 INFO L85 PathProgramCache]: Analyzing trace with hash 304957167, now seen corresponding path program 1 times [2023-12-19 15:44:10,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:10,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427908239] [2023-12-19 15:44:10,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:10,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:10,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:10,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023468084] [2023-12-19 15:44:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:10,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:10,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:10,840 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) [2023-12-19 15:44:10,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 15:44:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:11,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:44:11,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:11,114 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 15:44:11,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:11,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:11,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427908239] [2023-12-19 15:44:11,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:11,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023468084] [2023-12-19 15:44:11,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023468084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:11,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:11,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:44:11,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507111874] [2023-12-19 15:44:11,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:11,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:44:11,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:11,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:44:11,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:44:11,147 INFO L87 Difference]: Start difference. First operand has 93 states, 73 states have (on average 1.4383561643835616) internal successors, (105), 74 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:11,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:11,220 INFO L93 Difference]: Finished difference Result 187 states and 298 transitions. [2023-12-19 15:44:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:44:11,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 127 [2023-12-19 15:44:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:11,231 INFO L225 Difference]: With dead ends: 187 [2023-12-19 15:44:11,231 INFO L226 Difference]: Without dead ends: 95 [2023-12-19 15:44:11,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:44:11,236 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 3 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:11,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 372 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:44:11,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-19 15:44:11,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2023-12-19 15:44:11,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 74 states have internal predecessors, (100), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-19 15:44:11,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 134 transitions. [2023-12-19 15:44:11,274 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 134 transitions. Word has length 127 [2023-12-19 15:44:11,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:11,276 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 134 transitions. [2023-12-19 15:44:11,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:11,276 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 134 transitions. [2023-12-19 15:44:11,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-19 15:44:11,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:11,282 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:11,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 15:44:11,487 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 [2023-12-19 15:44:11,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:11,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:11,491 INFO L85 PathProgramCache]: Analyzing trace with hash 305016749, now seen corresponding path program 1 times [2023-12-19 15:44:11,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:11,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796763227] [2023-12-19 15:44:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:11,562 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:11,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067962653] [2023-12-19 15:44:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:11,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:11,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:11,569 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) [2023-12-19 15:44:11,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 15:44:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:11,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 15:44:11,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:11,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2023-12-19 15:44:11,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2023-12-19 15:44:11,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2023-12-19 15:44:11,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:11,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 83 [2023-12-19 15:44:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-19 15:44:12,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:44:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 15:44:12,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796763227] [2023-12-19 15:44:12,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:12,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067962653] [2023-12-19 15:44:12,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067962653] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:44:12,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:44:12,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2023-12-19 15:44:12,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172063544] [2023-12-19 15:44:12,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:12,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:44:12,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:12,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:44:12,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:44:12,156 INFO L87 Difference]: Start difference. First operand 93 states and 134 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:12,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:12,459 INFO L93 Difference]: Finished difference Result 281 states and 398 transitions. [2023-12-19 15:44:12,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:44:12,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 127 [2023-12-19 15:44:12,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:12,461 INFO L225 Difference]: With dead ends: 281 [2023-12-19 15:44:12,462 INFO L226 Difference]: Without dead ends: 189 [2023-12-19 15:44:12,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:44:12,463 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 198 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:12,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 648 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:44:12,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-19 15:44:12,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 148. [2023-12-19 15:44:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 122 states have (on average 1.3360655737704918) internal successors, (163), 123 states have internal predecessors, (163), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 15:44:12,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 209 transitions. [2023-12-19 15:44:12,475 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 209 transitions. Word has length 127 [2023-12-19 15:44:12,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:12,476 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 209 transitions. [2023-12-19 15:44:12,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 209 transitions. [2023-12-19 15:44:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-19 15:44:12,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:12,479 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:12,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:12,685 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 [2023-12-19 15:44:12,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:12,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:12,686 INFO L85 PathProgramCache]: Analyzing trace with hash -716051605, now seen corresponding path program 1 times [2023-12-19 15:44:12,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:12,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186152045] [2023-12-19 15:44:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:12,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:12,713 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:12,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476444400] [2023-12-19 15:44:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:12,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:12,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:12,714 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) [2023-12-19 15:44:12,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 15:44:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:12,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 15:44:12,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:12,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-19 15:44:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 15:44:12,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:12,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:12,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186152045] [2023-12-19 15:44:12,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:12,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476444400] [2023-12-19 15:44:12,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476444400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:12,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:12,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:44:12,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828522308] [2023-12-19 15:44:12,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:12,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:44:12,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:44:12,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:44:12,857 INFO L87 Difference]: Start difference. First operand 148 states and 209 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:13,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:13,089 INFO L93 Difference]: Finished difference Result 422 states and 590 transitions. [2023-12-19 15:44:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:44:13,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 127 [2023-12-19 15:44:13,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:13,092 INFO L225 Difference]: With dead ends: 422 [2023-12-19 15:44:13,092 INFO L226 Difference]: Without dead ends: 275 [2023-12-19 15:44:13,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:44:13,094 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 116 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:13,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 575 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:44:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-12-19 15:44:13,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 212. [2023-12-19 15:44:13,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 175 states have internal predecessors, (228), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-19 15:44:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 298 transitions. [2023-12-19 15:44:13,106 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 298 transitions. Word has length 127 [2023-12-19 15:44:13,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:13,107 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 298 transitions. [2023-12-19 15:44:13,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 298 transitions. [2023-12-19 15:44:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-19 15:44:13,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:13,108 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:13,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:13,314 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 [2023-12-19 15:44:13,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:13,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:13,314 INFO L85 PathProgramCache]: Analyzing trace with hash 210949506, now seen corresponding path program 1 times [2023-12-19 15:44:13,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:13,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221424429] [2023-12-19 15:44:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:13,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:13,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:13,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532834667] [2023-12-19 15:44:13,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:13,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:13,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:13,362 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) [2023-12-19 15:44:13,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 15:44:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:13,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-19 15:44:13,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:13,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 74 [2023-12-19 15:44:13,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:13,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 114 [2023-12-19 15:44:13,647 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:13,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 62 [2023-12-19 15:44:13,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:13,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 144 treesize of output 58 [2023-12-19 15:44:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 15:44:13,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:13,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:13,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221424429] [2023-12-19 15:44:13,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:13,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532834667] [2023-12-19 15:44:13,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532834667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:13,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:13,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:44:13,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395549650] [2023-12-19 15:44:13,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:13,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:44:13,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:13,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:44:13,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:44:13,822 INFO L87 Difference]: Start difference. First operand 212 states and 298 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:14,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:14,231 INFO L93 Difference]: Finished difference Result 497 states and 694 transitions. [2023-12-19 15:44:14,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:44:14,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2023-12-19 15:44:14,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:14,233 INFO L225 Difference]: With dead ends: 497 [2023-12-19 15:44:14,233 INFO L226 Difference]: Without dead ends: 286 [2023-12-19 15:44:14,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:44:14,234 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 146 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:14,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 566 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:44:14,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-19 15:44:14,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 218. [2023-12-19 15:44:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 179 states have (on average 1.324022346368715) internal successors, (237), 181 states have internal predecessors, (237), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-19 15:44:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 307 transitions. [2023-12-19 15:44:14,245 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 307 transitions. Word has length 128 [2023-12-19 15:44:14,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:14,245 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 307 transitions. [2023-12-19 15:44:14,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:14,245 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 307 transitions. [2023-12-19 15:44:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-19 15:44:14,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:14,246 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:14,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 15:44:14,452 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 [2023-12-19 15:44:14,452 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:14,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:14,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1377398396, now seen corresponding path program 1 times [2023-12-19 15:44:14,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:14,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144196632] [2023-12-19 15:44:14,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:14,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:14,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:14,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142621537] [2023-12-19 15:44:14,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:14,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:14,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:14,496 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) [2023-12-19 15:44:14,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 15:44:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:14,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 15:44:14,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:14,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:14,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 23 [2023-12-19 15:44:14,730 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 15:44:14,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:14,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:14,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144196632] [2023-12-19 15:44:14,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:14,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142621537] [2023-12-19 15:44:14,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142621537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:14,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:14,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:44:14,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364925658] [2023-12-19 15:44:14,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:14,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:44:14,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:14,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:44:14,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:44:14,733 INFO L87 Difference]: Start difference. First operand 218 states and 307 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:15,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:15,079 INFO L93 Difference]: Finished difference Result 494 states and 690 transitions. [2023-12-19 15:44:15,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:44:15,079 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2023-12-19 15:44:15,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:15,081 INFO L225 Difference]: With dead ends: 494 [2023-12-19 15:44:15,081 INFO L226 Difference]: Without dead ends: 277 [2023-12-19 15:44:15,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:44:15,082 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 98 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:15,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 594 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:44:15,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-12-19 15:44:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 222. [2023-12-19 15:44:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 183 states have (on average 1.3224043715846994) internal successors, (242), 185 states have internal predecessors, (242), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-19 15:44:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 312 transitions. [2023-12-19 15:44:15,092 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 312 transitions. Word has length 128 [2023-12-19 15:44:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:15,093 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 312 transitions. [2023-12-19 15:44:15,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 312 transitions. [2023-12-19 15:44:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-19 15:44:15,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:15,094 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:15,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:15,300 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 [2023-12-19 15:44:15,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:15,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:15,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1477994236, now seen corresponding path program 1 times [2023-12-19 15:44:15,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:15,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449197790] [2023-12-19 15:44:15,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:15,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:15,320 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:15,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43473016] [2023-12-19 15:44:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:15,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:15,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:15,322 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) [2023-12-19 15:44:15,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 15:44:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:15,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 15:44:15,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:15,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:15,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:15,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:15,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:15,543 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:15,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2023-12-19 15:44:15,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 70 [2023-12-19 15:44:15,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:15,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 110 [2023-12-19 15:44:15,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2023-12-19 15:44:15,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:15,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 115 treesize of output 41 [2023-12-19 15:44:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-12-19 15:44:15,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:44:15,847 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-19 15:44:15,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:15,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449197790] [2023-12-19 15:44:15,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:15,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43473016] [2023-12-19 15:44:15,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43473016] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:44:15,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:44:15,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2023-12-19 15:44:15,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726547866] [2023-12-19 15:44:15,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:44:15,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:44:15,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:15,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:44:15,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:44:15,849 INFO L87 Difference]: Start difference. First operand 222 states and 312 transitions. Second operand has 12 states, 10 states have (on average 6.5) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-19 15:44:16,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:16,547 INFO L93 Difference]: Finished difference Result 772 states and 1065 transitions. [2023-12-19 15:44:16,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-19 15:44:16,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.5) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 128 [2023-12-19 15:44:16,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:16,551 INFO L225 Difference]: With dead ends: 772 [2023-12-19 15:44:16,551 INFO L226 Difference]: Without dead ends: 551 [2023-12-19 15:44:16,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 237 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2023-12-19 15:44:16,552 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 460 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:16,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 330 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:44:16,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-19 15:44:16,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 414. [2023-12-19 15:44:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 348 states have (on average 1.3074712643678161) internal successors, (455), 353 states have internal predecessors, (455), 57 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-19 15:44:16,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 569 transitions. [2023-12-19 15:44:16,572 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 569 transitions. Word has length 128 [2023-12-19 15:44:16,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:16,573 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 569 transitions. [2023-12-19 15:44:16,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.5) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-19 15:44:16,573 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 569 transitions. [2023-12-19 15:44:16,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-19 15:44:16,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:16,574 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:16,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 15:44:16,781 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 [2023-12-19 15:44:16,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:16,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:16,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1219828798, now seen corresponding path program 1 times [2023-12-19 15:44:16,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:16,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126657545] [2023-12-19 15:44:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:16,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:16,821 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:16,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1461255946] [2023-12-19 15:44:16,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:16,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:16,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:16,822 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) [2023-12-19 15:44:16,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 15:44:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:17,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-19 15:44:17,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:17,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 84 [2023-12-19 15:44:17,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:17,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 120 [2023-12-19 15:44:17,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 46 [2023-12-19 15:44:17,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:17,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 174 treesize of output 70 [2023-12-19 15:44:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 15:44:17,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:17,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:17,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126657545] [2023-12-19 15:44:17,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:17,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461255946] [2023-12-19 15:44:17,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461255946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:17,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:17,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:44:17,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270289880] [2023-12-19 15:44:17,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:17,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:44:17,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:17,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:44:17,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:44:17,352 INFO L87 Difference]: Start difference. First operand 414 states and 569 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:17,741 INFO L93 Difference]: Finished difference Result 1187 states and 1617 transitions. [2023-12-19 15:44:17,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:44:17,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2023-12-19 15:44:17,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:17,744 INFO L225 Difference]: With dead ends: 1187 [2023-12-19 15:44:17,744 INFO L226 Difference]: Without dead ends: 774 [2023-12-19 15:44:17,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:44:17,746 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 184 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:17,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 514 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:44:17,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-12-19 15:44:17,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 428. [2023-12-19 15:44:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 362 states have (on average 1.3011049723756907) internal successors, (471), 367 states have internal predecessors, (471), 57 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-19 15:44:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 585 transitions. [2023-12-19 15:44:17,760 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 585 transitions. Word has length 128 [2023-12-19 15:44:17,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:17,760 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 585 transitions. [2023-12-19 15:44:17,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 15:44:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 585 transitions. [2023-12-19 15:44:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-19 15:44:17,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:17,761 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:17,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:17,968 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 [2023-12-19 15:44:17,968 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:17,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:17,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1795274820, now seen corresponding path program 1 times [2023-12-19 15:44:17,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:17,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613519907] [2023-12-19 15:44:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:17,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:17,992 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:17,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1583298720] [2023-12-19 15:44:17,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:17,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:17,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:17,993 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) [2023-12-19 15:44:17,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 15:44:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:24,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 124 conjunts are in the unsatisfiable core [2023-12-19 15:44:24,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:24,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:24,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 38 treesize of output 18 [2023-12-19 15:44:24,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-19 15:44:24,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:24,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2023-12-19 15:44:24,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:24,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 37 [2023-12-19 15:44:24,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:24,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 37 [2023-12-19 15:44:24,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2023-12-19 15:44:25,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:25,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 60 [2023-12-19 15:44:25,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:25,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 60 [2023-12-19 15:44:25,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:25,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 91 treesize of output 82 [2023-12-19 15:44:25,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 92 [2023-12-19 15:44:25,767 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:25,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 139 treesize of output 119 [2023-12-19 15:44:26,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 152 [2023-12-19 15:44:26,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 214 [2023-12-19 15:44:26,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 121 [2023-12-19 15:44:39,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:39,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 373 treesize of output 169 [2023-12-19 15:44:44,710 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 401 proven. 99 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-19 15:44:44,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:44:53,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:53,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613519907] [2023-12-19 15:44:53,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:53,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583298720] [2023-12-19 15:44:53,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583298720] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:44:53,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:44:53,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2023-12-19 15:44:53,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415813017] [2023-12-19 15:44:53,453 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-19 15:44:53,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-19 15:44:53,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:53,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-19 15:44:53,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2501, Unknown=0, NotChecked=0, Total=2970 [2023-12-19 15:44:53,455 INFO L87 Difference]: Start difference. First operand 428 states and 585 transitions. Second operand has 43 states, 36 states have (on average 2.111111111111111) internal successors, (76), 39 states have internal predecessors, (76), 11 states have call successors, (17), 7 states have call predecessors, (17), 11 states have return successors, (17), 7 states have call predecessors, (17), 11 states have call successors, (17) [2023-12-19 15:45:01,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-19 15:45:23,382 WARN L293 SmtUtils]: Spent 8.46s on a formula simplification. DAG size of input: 123 DAG size of output: 120 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 15:45:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:45:36,303 INFO L93 Difference]: Finished difference Result 1359 states and 1793 transitions. [2023-12-19 15:45:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-19 15:45:36,304 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 36 states have (on average 2.111111111111111) internal successors, (76), 39 states have internal predecessors, (76), 11 states have call successors, (17), 7 states have call predecessors, (17), 11 states have return successors, (17), 7 states have call predecessors, (17), 11 states have call successors, (17) Word has length 128 [2023-12-19 15:45:36,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:45:36,311 INFO L225 Difference]: With dead ends: 1359 [2023-12-19 15:45:36,311 INFO L226 Difference]: Without dead ends: 932 [2023-12-19 15:45:36,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 43.3s TimeCoverageRelationStatistics Valid=796, Invalid=4606, Unknown=0, NotChecked=0, Total=5402 [2023-12-19 15:45:36,314 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 779 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:45:36,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1107 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 20.6s Time] [2023-12-19 15:45:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2023-12-19 15:45:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 264. [2023-12-19 15:45:36,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 227 states have (on average 1.3083700440528634) internal successors, (297), 228 states have internal predecessors, (297), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-19 15:45:36,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 347 transitions. [2023-12-19 15:45:36,333 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 347 transitions. Word has length 128 [2023-12-19 15:45:36,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:45:36,334 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 347 transitions. [2023-12-19 15:45:36,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 36 states have (on average 2.111111111111111) internal successors, (76), 39 states have internal predecessors, (76), 11 states have call successors, (17), 7 states have call predecessors, (17), 11 states have return successors, (17), 7 states have call predecessors, (17), 11 states have call successors, (17) [2023-12-19 15:45:36,334 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 347 transitions. [2023-12-19 15:45:36,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-19 15:45:36,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:45:36,335 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:45:36,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 15:45:36,536 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 [2023-12-19 15:45:36,536 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:45:36,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:45:36,537 INFO L85 PathProgramCache]: Analyzing trace with hash 206926918, now seen corresponding path program 1 times [2023-12-19 15:45:36,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:45:36,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186366233] [2023-12-19 15:45:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:36,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:45:36,562 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:45:36,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1169709861] [2023-12-19 15:45:36,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:36,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:45:36,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:45:36,580 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) [2023-12-19 15:45:36,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 15:45:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:45:39,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 114 conjunts are in the unsatisfiable core [2023-12-19 15:45:39,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:45:39,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2023-12-19 15:45:39,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-19 15:45:40,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:40,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2023-12-19 15:45:40,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:40,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 37 [2023-12-19 15:45:40,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:40,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 37 [2023-12-19 15:45:40,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2023-12-19 15:45:40,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:40,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 60 [2023-12-19 15:45:41,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:41,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 60 [2023-12-19 15:45:41,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:41,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 82 [2023-12-19 15:45:41,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 92 [2023-12-19 15:45:42,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:42,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 139 treesize of output 119 [2023-12-19 15:45:49,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:49,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 189 treesize of output 85 [2023-12-19 15:45:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 363 proven. 114 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-19 15:45:50,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:45:58,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:45:58,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186366233] [2023-12-19 15:45:58,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:45:58,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169709861] [2023-12-19 15:45:58,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169709861] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:45:58,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:45:58,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2023-12-19 15:45:58,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538898448] [2023-12-19 15:45:58,819 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-19 15:45:58,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-19 15:45:58,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:45:58,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-19 15:45:58,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=2418, Unknown=0, NotChecked=0, Total=2756 [2023-12-19 15:45:58,821 INFO L87 Difference]: Start difference. First operand 264 states and 347 transitions. Second operand has 40 states, 34 states have (on average 2.1470588235294117) internal successors, (73), 36 states have internal predecessors, (73), 10 states have call successors, (17), 6 states have call predecessors, (17), 10 states have return successors, (17), 6 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-19 15:46:12,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-19 15:46:18,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-19 15:46:39,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:39,892 INFO L93 Difference]: Finished difference Result 1036 states and 1369 transitions. [2023-12-19 15:46:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-19 15:46:39,892 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 34 states have (on average 2.1470588235294117) internal successors, (73), 36 states have internal predecessors, (73), 10 states have call successors, (17), 6 states have call predecessors, (17), 10 states have return successors, (17), 6 states have call predecessors, (17), 10 states have call successors, (17) Word has length 128 [2023-12-19 15:46:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:39,894 INFO L225 Difference]: With dead ends: 1036 [2023-12-19 15:46:39,895 INFO L226 Difference]: Without dead ends: 773 [2023-12-19 15:46:39,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2193 ImplicationChecksByTransitivity, 31.9s TimeCoverageRelationStatistics Valid=885, Invalid=6771, Unknown=0, NotChecked=0, Total=7656 [2023-12-19 15:46:39,897 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 650 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 2849 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 2915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2849 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:39,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1606 Invalid, 2915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2849 Invalid, 2 Unknown, 0 Unchecked, 23.8s Time] [2023-12-19 15:46:39,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2023-12-19 15:46:39,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 429. [2023-12-19 15:46:39,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 356 states have (on average 1.2752808988764044) internal successors, (454), 358 states have internal predecessors, (454), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:46:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 554 transitions. [2023-12-19 15:46:39,920 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 554 transitions. Word has length 128 [2023-12-19 15:46:39,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:39,920 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 554 transitions. [2023-12-19 15:46:39,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 34 states have (on average 2.1470588235294117) internal successors, (73), 36 states have internal predecessors, (73), 10 states have call successors, (17), 6 states have call predecessors, (17), 10 states have return successors, (17), 6 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-19 15:46:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 554 transitions. [2023-12-19 15:46:39,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-19 15:46:39,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:39,921 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:39,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-19 15:46:40,131 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 [2023-12-19 15:46:40,134 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:40,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:40,134 INFO L85 PathProgramCache]: Analyzing trace with hash -10163514, now seen corresponding path program 1 times [2023-12-19 15:46:40,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:40,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23811782] [2023-12-19 15:46:40,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:40,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:40,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:40,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456802688] [2023-12-19 15:46:40,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:40,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:40,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:40,160 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) [2023-12-19 15:46:40,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 15:46:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:46:43,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 15:46:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:46:43,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 15:46:43,570 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 15:46:43,571 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:46:43,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:43,782 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 [2023-12-19 15:46:43,786 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:43,788 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 15:46:43,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:46:43 BoogieIcfgContainer [2023-12-19 15:46:43,824 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 15:46:43,825 INFO L158 Benchmark]: Toolchain (without parser) took 154139.46ms. Allocated memory was 298.8MB in the beginning and 564.1MB in the end (delta: 265.3MB). Free memory was 259.8MB in the beginning and 518.9MB in the end (delta: -259.1MB). Peak memory consumption was 325.0MB. Max. memory is 8.0GB. [2023-12-19 15:46:43,825 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:46:43,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.81ms. Allocated memory is still 298.8MB. Free memory was 259.3MB in the beginning and 244.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 15:46:43,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.16ms. Allocated memory is still 298.8MB. Free memory was 243.6MB in the beginning and 239.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:46:43,825 INFO L158 Benchmark]: Boogie Preprocessor took 45.83ms. Allocated memory is still 298.8MB. Free memory was 239.9MB in the beginning and 235.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:46:43,825 INFO L158 Benchmark]: RCFGBuilder took 564.68ms. Allocated memory is still 298.8MB. Free memory was 235.2MB in the beginning and 205.3MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-19 15:46:43,825 INFO L158 Benchmark]: TraceAbstraction took 153213.99ms. Allocated memory was 298.8MB in the beginning and 564.1MB in the end (delta: 265.3MB). Free memory was 204.3MB in the beginning and 518.9MB in the end (delta: -314.7MB). Peak memory consumption was 269.4MB. Max. memory is 8.0GB. [2023-12-19 15:46:43,826 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 259.81ms. Allocated memory is still 298.8MB. Free memory was 259.3MB in the beginning and 244.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.16ms. Allocated memory is still 298.8MB. Free memory was 243.6MB in the beginning and 239.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.83ms. Allocated memory is still 298.8MB. Free memory was 239.9MB in the beginning and 235.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 564.68ms. Allocated memory is still 298.8MB. Free memory was 235.2MB in the beginning and 205.3MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 153213.99ms. Allocated memory was 298.8MB in the beginning and 564.1MB in the end (delta: 265.3MB). Free memory was 204.3MB in the beginning and 518.9MB in the end (delta: -314.7MB). Peak memory consumption was 269.4MB. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 113. Possible FailurePath: [L36] unsigned char isInitial = 0; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L51] signed long int last_1_WrapperStruct00_var_1_11 = 10; [L117] isInitial = 1 [L118] FCALL initially() [L119] COND TRUE 1 [L120] CALL updateLastVariables() [L110] EXPR WrapperStruct00.var_1_11 [L110] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L120] RET updateLastVariables() [L121] CALL updateVariables() [L83] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L84] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L84] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L84] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L85] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L86] WrapperStruct00.var_1_3 = __VERIFIER_nondet_uchar() [L87] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L87] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L88] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L89] WrapperStruct00.var_1_4 = __VERIFIER_nondet_ulong() [L90] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L91] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 12) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 12) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L92] WrapperStruct00.var_1_5 = __VERIFIER_nondet_ulong() [L93] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L94] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 11) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 11) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L95] WrapperStruct00.var_1_7 = __VERIFIER_nondet_char() [L96] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L97] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L98] WrapperStruct00.var_1_8 = __VERIFIER_nondet_char() [L99] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L100] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L101] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L102] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L103] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L104] WrapperStruct00.var_1_12 = __VERIFIER_nondet_long() [L105] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -2147483648) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -2147483648) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L106] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L107] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_12 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_12 != 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L121] RET updateVariables() [L122] CALL step() [L55] EXPR WrapperStruct00.var_1_7 [L55] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L55] COND TRUE WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3 [L56] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L56] COND FALSE !(last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) [L64] EXPR WrapperStruct00.var_1_7 [L64] WrapperStruct00.var_1_13 = WrapperStruct00.var_1_7 [L65] EXPR WrapperStruct00.var_1_2 [L65] EXPR WrapperStruct00.var_1_12 [L65] signed long int stepLocal_1 = WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12; [L66] EXPR WrapperStruct00.var_1_10 [L66] EXPR WrapperStruct00.var_1_13 [L66] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L66] COND FALSE !(((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > stepLocal_1) [L71] EXPR WrapperStruct00.var_1_7 [L71] WrapperStruct00.var_1_11 = WrapperStruct00.var_1_7 [L73] EXPR WrapperStruct00.var_1_11 [L73] signed long int stepLocal_0 = WrapperStruct00.var_1_11; [L74] EXPR WrapperStruct00.var_1_2 [L74] EXPR WrapperStruct00.var_1_3 [L74] EXPR WrapperStruct00.var_1_4 [L74] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L74] EXPR (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10, stepLocal_0=10, stepLocal_1=-2] [L74] COND FALSE !(((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= stepLocal_0) [L77] WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L77] COND TRUE WrapperStruct00.var_1_9 [L78] EXPR WrapperStruct00.var_1_5 [L78] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_5 [L122] RET step() [L123] CALL, EXPR property() [L113] EXPR WrapperStruct00.var_1_2 [L113] EXPR WrapperStruct00.var_1_3 [L113] EXPR WrapperStruct00.var_1_4 [L113] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1) [L113] EXPR WrapperStruct00.var_1_1 [L113] EXPR WrapperStruct00.var_1_4 [L113] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) [L113] EXPR WrapperStruct00.var_1_8 [L113] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR ((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))) [L113] EXPR WrapperStruct00.var_1_4 [L113] EXPR ((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR ((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR ((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR (((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR (((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_13 == ((signed long int) WrapperStruct00.var_1_7)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113] EXPR ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_13 == ((signed long int) WrapperStruct00.var_1_7)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L113-L114] return ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_13 == ((signed long int) WrapperStruct00.var_1_7)) ; [L123] RET, EXPR property() [L123] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_11=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 153.1s, OverallIterations: 10, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 86.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 2672 SdHoareTripleChecker+Valid, 46.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2634 mSDsluCounter, 6312 SdHoareTripleChecker+Invalid, 45.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5213 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7617 IncrementalHoareTripleChecker+Invalid, 7771 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 1099 mSDtfsCounter, 7617 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1531 GetRequests, 1293 SyntacticMatches, 9 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3792 ImplicationChecksByTransitivity, 75.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=9, InterpolantAutomatonStates: 184, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1724 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 13.0s SatisfiabilityAnalysisTime, 49.9s InterpolantComputationTime, 1277 NumberOfCodeBlocks, 1277 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1393 ConstructedInterpolants, 20 QuantifiedInterpolants, 16155 SizeOfPredicates, 111 NumberOfNonLiveVariables, 3440 ConjunctsInSsa, 336 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 5690/5984 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: unable to determine feasibility of some traces [2023-12-19 15:46:44,032 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-19 15:46:44,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...