/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-92.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:55:25,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:55:25,763 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 15:55:25,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:55:25,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:55:25,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:55:25,779 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:55:25,780 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:55:25,780 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:55:25,780 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:55:25,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:55:25,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:55:25,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:55:25,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:55:25,782 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:55:25,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:55:25,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:55:25,784 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:55:25,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:55:25,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:55:25,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:55:25,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:55:25,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:55:25,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:55:25,786 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:55:25,786 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:55:25,786 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:55:25,786 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:55:25,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:55:25,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:55:25,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:55:25,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:55:25,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:55:25,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:55:25,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:55:25,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:55:25,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:55:25,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:55:25,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:55:25,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:55:25,788 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:55:25,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:55:25,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:55:25,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:55:26,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:55:26,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:55:26,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:55:26,045 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:55:26,045 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:55:26,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-92.i [2023-12-19 15:55:27,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:55:27,261 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:55:27,262 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-92.i [2023-12-19 15:55:27,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a626e3fec/6ac43c81e51c46968125622956caf5d3/FLAG75d38eb3e [2023-12-19 15:55:27,283 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a626e3fec/6ac43c81e51c46968125622956caf5d3 [2023-12-19 15:55:27,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:55:27,286 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:55:27,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:55:27,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:55:27,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:55:27,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9adf280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27, skipping insertion in model container [2023-12-19 15:55:27,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:55:27,433 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-92.i[916,929] [2023-12-19 15:55:27,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:55:27,491 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:55:27,508 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-92.i[916,929] [2023-12-19 15:55:27,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:55:27,556 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:55:27,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27 WrapperNode [2023-12-19 15:55:27,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:55:27,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:55:27,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:55:27,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:55:27,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,617 INFO L138 Inliner]: procedures = 29, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 451 [2023-12-19 15:55:27,618 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:55:27,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:55:27,619 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:55:27,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:55:27,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,665 INFO L175 MemorySlicer]: Split 123 memory accesses to 2 slices as follows [2, 121]. 98 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 16]. The 18 writes are split as follows [0, 18]. [2023-12-19 15:55:27,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:55:27,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:55:27,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:55:27,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:55:27,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (1/1) ... [2023-12-19 15:55:27,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:55:27,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:27,727 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 15:55:27,729 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 15:55:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:55:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-19 15:55:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-19 15:55:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:55:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:55:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-19 15:55:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-19 15:55:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:55:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:55:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-19 15:55:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-19 15:55:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:55:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:55:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:55:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:55:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:55:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:55:27,861 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:55:27,862 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:55:28,238 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:55:28,258 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:55:28,259 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:55:28,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:55:28 BoogieIcfgContainer [2023-12-19 15:55:28,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:55:28,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:55:28,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:55:28,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:55:28,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:55:27" (1/3) ... [2023-12-19 15:55:28,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d71bb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:55:28, skipping insertion in model container [2023-12-19 15:55:28,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:27" (2/3) ... [2023-12-19 15:55:28,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d71bb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:55:28, skipping insertion in model container [2023-12-19 15:55:28,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:55:28" (3/3) ... [2023-12-19 15:55:28,267 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-92.i [2023-12-19 15:55:28,280 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:55:28,280 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:55:28,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:55:28,329 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;@328c0a75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:55:28,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:55:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 83 states have internal predecessors, (116), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:28,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:28,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:28,348 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:28,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:28,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash 776589225, now seen corresponding path program 1 times [2023-12-19 15:55:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:28,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140323133] [2023-12-19 15:55:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:28,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:28,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140323133] [2023-12-19 15:55:28,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 15:55:28,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030186303] [2023-12-19 15:55:28,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:28,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:28,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:28,636 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 15:55:28,663 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 15:55:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:28,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 15:55:28,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:28,880 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2023-12-19 15:55:28,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:28,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030186303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:28,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:28,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:55:28,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709977667] [2023-12-19 15:55:28,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:28,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:55:28,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:28,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:55:28,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:55:28,916 INFO L87 Difference]: Start difference. First operand has 104 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 83 states have internal predecessors, (116), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 15:55:28,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:28,960 INFO L93 Difference]: Finished difference Result 205 states and 325 transitions. [2023-12-19 15:55:28,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:55:28,962 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2023-12-19 15:55:28,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:28,969 INFO L225 Difference]: With dead ends: 205 [2023-12-19 15:55:28,969 INFO L226 Difference]: Without dead ends: 102 [2023-12-19 15:55:28,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:55:28,975 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:28,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:55:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-19 15:55:29,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-12-19 15:55:29,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 81 states have internal predecessors, (111), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2023-12-19 15:55:29,022 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 148 [2023-12-19 15:55:29,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:29,022 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2023-12-19 15:55:29,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 15:55:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2023-12-19 15:55:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:29,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:29,030 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:29,036 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 15:55:29,240 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 15:55:29,240 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:29,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:29,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2091624057, now seen corresponding path program 1 times [2023-12-19 15:55:29,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:29,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257325133] [2023-12-19 15:55:29,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:29,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:29,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257325133] [2023-12-19 15:55:29,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 15:55:29,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123956797] [2023-12-19 15:55:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:29,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:29,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:29,326 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 15:55:29,327 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 15:55:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:55:29,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-12-19 15:55:29,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:29,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123956797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:29,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:29,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:55:29,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578398949] [2023-12-19 15:55:29,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:29,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:55:29,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:29,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:55:29,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:55:29,589 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 15:55:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:29,651 INFO L93 Difference]: Finished difference Result 209 states and 306 transitions. [2023-12-19 15:55:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:55:29,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2023-12-19 15:55:29,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:29,655 INFO L225 Difference]: With dead ends: 209 [2023-12-19 15:55:29,655 INFO L226 Difference]: Without dead ends: 108 [2023-12-19 15:55:29,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 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 15:55:29,656 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 10 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 424 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 15:55:29,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 424 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:55:29,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-19 15:55:29,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2023-12-19 15:55:29,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:29,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2023-12-19 15:55:29,666 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 148 [2023-12-19 15:55:29,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:29,667 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2023-12-19 15:55:29,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 15:55:29,668 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2023-12-19 15:55:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:29,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:29,670 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:29,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 15:55:29,876 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 15:55:29,877 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:29,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:29,877 INFO L85 PathProgramCache]: Analyzing trace with hash -133049271, now seen corresponding path program 1 times [2023-12-19 15:55:29,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:29,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721234336] [2023-12-19 15:55:29,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:29,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:29,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:55:29,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935570049] [2023-12-19 15:55:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:29,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:29,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:29,959 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 15:55:29,988 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 15:55:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:55:30,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:30,140 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:55:30,140 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:30,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:30,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721234336] [2023-12-19 15:55:30,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:55:30,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935570049] [2023-12-19 15:55:30,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935570049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:30,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:30,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:55:30,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388418747] [2023-12-19 15:55:30,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:30,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:55:30,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:30,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:55:30,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:55:30,144 INFO L87 Difference]: Start difference. First operand 104 states and 151 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:30,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:30,175 INFO L93 Difference]: Finished difference Result 211 states and 306 transitions. [2023-12-19 15:55:30,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:55:30,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2023-12-19 15:55:30,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:30,177 INFO L225 Difference]: With dead ends: 211 [2023-12-19 15:55:30,177 INFO L226 Difference]: Without dead ends: 108 [2023-12-19 15:55:30,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 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 15:55:30,179 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 3 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 423 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 15:55:30,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 423 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:55:30,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-19 15:55:30,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2023-12-19 15:55:30,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 85 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:30,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 153 transitions. [2023-12-19 15:55:30,185 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 153 transitions. Word has length 148 [2023-12-19 15:55:30,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:30,186 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 153 transitions. [2023-12-19 15:55:30,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:30,186 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 153 transitions. [2023-12-19 15:55:30,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:30,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:30,187 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:30,193 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 15:55:30,394 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 15:55:30,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:30,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:30,395 INFO L85 PathProgramCache]: Analyzing trace with hash -132989689, now seen corresponding path program 1 times [2023-12-19 15:55:30,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:30,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063031378] [2023-12-19 15:55:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:30,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:30,432 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:55:30,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298858665] [2023-12-19 15:55:30,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:30,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:30,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:30,433 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 15:55:30,436 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 15:55:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-19 15:55:30,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:30,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:30,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 10 [2023-12-19 15:55:30,778 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 23 treesize of output 11 [2023-12-19 15:55:30,814 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 23 treesize of output 11 [2023-12-19 15:55:30,847 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 23 treesize of output 11 [2023-12-19 15:55:30,880 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 23 treesize of output 11 [2023-12-19 15:55:30,934 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 23 treesize of output 11 [2023-12-19 15:55:30,960 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 23 treesize of output 11 [2023-12-19 15:55:30,984 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 23 treesize of output 11 [2023-12-19 15:55:31,029 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 23 treesize of output 11 [2023-12-19 15:55:31,061 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 23 treesize of output 11 [2023-12-19 15:55:31,098 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 23 treesize of output 11 [2023-12-19 15:55:31,108 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 23 treesize of output 11 [2023-12-19 15:55:31,113 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 15 treesize of output 7 [2023-12-19 15:55:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 18 proven. 54 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 15:55:31,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:55:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-19 15:55:31,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:31,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063031378] [2023-12-19 15:55:31,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:55:31,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298858665] [2023-12-19 15:55:31,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298858665] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:55:31,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:55:31,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-19 15:55:31,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357628758] [2023-12-19 15:55:31,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:55:31,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:55:31,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:31,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:55:31,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:55:31,289 INFO L87 Difference]: Start difference. First operand 106 states and 153 transitions. Second operand has 12 states, 10 states have (on average 9.8) internal successors, (98), 12 states have internal predecessors, (98), 4 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 4 states have call successors, (38) [2023-12-19 15:55:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:31,596 INFO L93 Difference]: Finished difference Result 217 states and 310 transitions. [2023-12-19 15:55:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 15:55:31,597 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.8) internal successors, (98), 12 states have internal predecessors, (98), 4 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 4 states have call successors, (38) Word has length 148 [2023-12-19 15:55:31,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:31,598 INFO L225 Difference]: With dead ends: 217 [2023-12-19 15:55:31,598 INFO L226 Difference]: Without dead ends: 112 [2023-12-19 15:55:31,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:55:31,599 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 280 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:31,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 270 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:31,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-19 15:55:31,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2023-12-19 15:55:31,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.3295454545454546) internal successors, (117), 88 states have internal predecessors, (117), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:31,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 155 transitions. [2023-12-19 15:55:31,606 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 155 transitions. Word has length 148 [2023-12-19 15:55:31,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:31,606 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 155 transitions. [2023-12-19 15:55:31,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.8) internal successors, (98), 12 states have internal predecessors, (98), 4 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 4 states have call successors, (38) [2023-12-19 15:55:31,607 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 155 transitions. [2023-12-19 15:55:31,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:31,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:31,608 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:31,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 15:55:31,815 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 15:55:31,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:31,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:31,816 INFO L85 PathProgramCache]: Analyzing trace with hash -950638139, now seen corresponding path program 1 times [2023-12-19 15:55:31,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:31,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209950768] [2023-12-19 15:55:31,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:31,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:31,842 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:55:31,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871782808] [2023-12-19 15:55:31,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:31,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:31,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:31,844 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 15:55:31,869 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 15:55:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:32,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 118 conjunts are in the unsatisfiable core [2023-12-19 15:55:32,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:32,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 84 [2023-12-19 15:55:33,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 87 [2023-12-19 15:55:33,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:33,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 86 treesize of output 87 [2023-12-19 15:55:33,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:33,749 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 79 treesize of output 84 [2023-12-19 15:55:33,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 77 [2023-12-19 15:55:34,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:34,349 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 79 treesize of output 84 [2023-12-19 15:55:34,485 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:34,485 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 79 treesize of output 84 [2023-12-19 15:55:34,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:34,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 79 treesize of output 77 [2023-12-19 15:55:34,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:34,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 72 treesize of output 67 [2023-12-19 15:55:35,311 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:35,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 74 treesize of output 69 [2023-12-19 15:55:35,658 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 168 treesize of output 126 [2023-12-19 15:55:35,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:35,901 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 183 treesize of output 132 [2023-12-19 15:55:36,114 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 231 treesize of output 165 [2023-12-19 15:55:36,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 193 [2023-12-19 15:55:36,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:36,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 225 treesize of output 155 [2023-12-19 15:55:36,451 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:36,451 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 189 treesize of output 134 [2023-12-19 15:55:36,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:36,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 202 treesize of output 90 [2023-12-19 15:55:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 11 proven. 620 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-19 15:55:36,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:55:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:55:37,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:37,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209950768] [2023-12-19 15:55:37,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:55:37,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871782808] [2023-12-19 15:55:37,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871782808] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:55:37,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:55:37,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [39] total 46 [2023-12-19 15:55:37,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669344684] [2023-12-19 15:55:37,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:37,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:55:37,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:37,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:55:37,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1867, Unknown=0, NotChecked=0, Total=2070 [2023-12-19 15:55:37,385 INFO L87 Difference]: Start difference. First operand 110 states and 155 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:38,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:38,075 INFO L93 Difference]: Finished difference Result 298 states and 421 transitions. [2023-12-19 15:55:38,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:55:38,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2023-12-19 15:55:38,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:38,077 INFO L225 Difference]: With dead ends: 298 [2023-12-19 15:55:38,077 INFO L226 Difference]: Without dead ends: 189 [2023-12-19 15:55:38,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=248, Invalid=2302, Unknown=0, NotChecked=0, Total=2550 [2023-12-19 15:55:38,079 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 176 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:38,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 771 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:55:38,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-19 15:55:38,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 128. [2023-12-19 15:55:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 106 states have internal predecessors, (142), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:38,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 180 transitions. [2023-12-19 15:55:38,086 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 180 transitions. Word has length 148 [2023-12-19 15:55:38,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:38,087 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 180 transitions. [2023-12-19 15:55:38,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:38,087 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 180 transitions. [2023-12-19 15:55:38,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:38,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:38,088 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:38,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 15:55:38,297 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 15:55:38,297 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:38,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:38,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1961755389, now seen corresponding path program 1 times [2023-12-19 15:55:38,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:38,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897746267] [2023-12-19 15:55:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:38,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:38,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:55:38,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827344489] [2023-12-19 15:55:38,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:38,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:38,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:38,344 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 15:55:38,345 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 15:55:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:38,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 15:55:38,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:38,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:38,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 34 [2023-12-19 15:55:38,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:38,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 44 treesize of output 34 [2023-12-19 15:55:38,634 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 76 treesize of output 58 [2023-12-19 15:55:38,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:38,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 104 [2023-12-19 15:55:38,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:38,671 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 66 treesize of output 48 [2023-12-19 15:55:38,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:38,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 68 [2023-12-19 15:55:38,715 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:38,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 68 [2023-12-19 15:55:38,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:38,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 119 treesize of output 41 [2023-12-19 15:55:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:55:38,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:38,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:38,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897746267] [2023-12-19 15:55:38,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:55:38,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827344489] [2023-12-19 15:55:38,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827344489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:38,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:38,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:38,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468586577] [2023-12-19 15:55:38,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:38,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:38,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:38,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:38,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:38,753 INFO L87 Difference]: Start difference. First operand 128 states and 180 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:38,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:38,996 INFO L93 Difference]: Finished difference Result 347 states and 486 transitions. [2023-12-19 15:55:38,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:55:38,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2023-12-19 15:55:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:38,998 INFO L225 Difference]: With dead ends: 347 [2023-12-19 15:55:38,998 INFO L226 Difference]: Without dead ends: 220 [2023-12-19 15:55:38,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:55:38,999 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 118 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:38,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 571 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:38,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-19 15:55:39,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 189. [2023-12-19 15:55:39,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 161 states have (on average 1.3416149068322982) internal successors, (216), 162 states have internal predecessors, (216), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 15:55:39,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 262 transitions. [2023-12-19 15:55:39,007 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 262 transitions. Word has length 148 [2023-12-19 15:55:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:39,007 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 262 transitions. [2023-12-19 15:55:39,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 262 transitions. [2023-12-19 15:55:39,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:39,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:39,009 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:39,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 15:55:39,215 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 15:55:39,215 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:39,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:39,216 INFO L85 PathProgramCache]: Analyzing trace with hash -888598525, now seen corresponding path program 1 times [2023-12-19 15:55:39,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:39,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503177018] [2023-12-19 15:55:39,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:39,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:39,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:55:39,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671704134] [2023-12-19 15:55:39,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:39,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:39,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:39,259 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 15:55:39,259 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 15:55:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 15:55:39,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:39,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:39,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 39 treesize of output 33 [2023-12-19 15:55:39,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:39,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 43 treesize of output 33 [2023-12-19 15:55:39,536 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 75 treesize of output 57 [2023-12-19 15:55:39,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:39,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 103 [2023-12-19 15:55:39,552 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 59 treesize of output 31 [2023-12-19 15:55:39,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:39,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 109 treesize of output 66 [2023-12-19 15:55:39,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:39,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 109 treesize of output 66 [2023-12-19 15:55:39,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:39,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 39 [2023-12-19 15:55:39,666 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:55:39,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:39,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:39,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503177018] [2023-12-19 15:55:39,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:55:39,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671704134] [2023-12-19 15:55:39,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671704134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:39,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:39,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:39,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416792711] [2023-12-19 15:55:39,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:39,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:39,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:39,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:39,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:39,668 INFO L87 Difference]: Start difference. First operand 189 states and 262 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:39,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:39,892 INFO L93 Difference]: Finished difference Result 384 states and 528 transitions. [2023-12-19 15:55:39,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:55:39,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2023-12-19 15:55:39,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:39,894 INFO L225 Difference]: With dead ends: 384 [2023-12-19 15:55:39,894 INFO L226 Difference]: Without dead ends: 196 [2023-12-19 15:55:39,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:55:39,895 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 164 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:39,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 458 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:39,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-19 15:55:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 147. [2023-12-19 15:55:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 124 states have (on average 1.3225806451612903) internal successors, (164), 124 states have internal predecessors, (164), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:39,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 202 transitions. [2023-12-19 15:55:39,902 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 202 transitions. Word has length 148 [2023-12-19 15:55:39,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:39,902 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 202 transitions. [2023-12-19 15:55:39,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:39,902 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 202 transitions. [2023-12-19 15:55:39,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:39,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:39,903 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:39,912 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 15:55:40,110 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 15:55:40,110 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:40,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:40,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1899715775, now seen corresponding path program 1 times [2023-12-19 15:55:40,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:40,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695321782] [2023-12-19 15:55:40,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:40,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:40,147 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:55:40,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852652188] [2023-12-19 15:55:40,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:40,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:40,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:40,160 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 15:55:40,173 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 15:55:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-19 15:55:40,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:40,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:40,591 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 19 treesize of output 7 [2023-12-19 15:55:40,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:40,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 102 [2023-12-19 15:55:40,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:40,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 181 treesize of output 101 [2023-12-19 15:55:40,706 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 213 treesize of output 165 [2023-12-19 15:55:40,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:40,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 165 treesize of output 179 [2023-12-19 15:55:40,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 163 [2023-12-19 15:55:40,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:40,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 385 treesize of output 186 [2023-12-19 15:55:40,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:40,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 385 treesize of output 186 [2023-12-19 15:55:41,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:41,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 408 treesize of output 148 [2023-12-19 15:55:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:55:41,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:41,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:41,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695321782] [2023-12-19 15:55:41,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:55:41,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852652188] [2023-12-19 15:55:41,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852652188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:41,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:41,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:55:41,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339643779] [2023-12-19 15:55:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:41,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:55:41,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:41,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:55:41,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:55:41,167 INFO L87 Difference]: Start difference. First operand 147 states and 202 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:41,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:41,703 INFO L93 Difference]: Finished difference Result 326 states and 449 transitions. [2023-12-19 15:55:41,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:55:41,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2023-12-19 15:55:41,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:41,705 INFO L225 Difference]: With dead ends: 326 [2023-12-19 15:55:41,705 INFO L226 Difference]: Without dead ends: 180 [2023-12-19 15:55:41,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:55:41,706 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 135 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:41,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 888 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:55:41,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-19 15:55:41,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 147. [2023-12-19 15:55:41,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 124 states have (on average 1.3225806451612903) internal successors, (164), 124 states have internal predecessors, (164), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:41,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 202 transitions. [2023-12-19 15:55:41,714 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 202 transitions. Word has length 148 [2023-12-19 15:55:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:41,714 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 202 transitions. [2023-12-19 15:55:41,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 202 transitions. [2023-12-19 15:55:41,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-19 15:55:41,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:41,716 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:41,738 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 15:55:41,928 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 15:55:41,928 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:41,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:41,929 INFO L85 PathProgramCache]: Analyzing trace with hash 684612759, now seen corresponding path program 1 times [2023-12-19 15:55:41,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:41,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259103304] [2023-12-19 15:55:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:41,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:41,958 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:55:41,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752235042] [2023-12-19 15:55:41,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:41,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:41,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:41,960 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 15:55:41,984 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 15:55:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-19 15:55:42,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:42,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:42,241 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 19 treesize of output 7 [2023-12-19 15:55:42,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:42,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 141 treesize of output 81 [2023-12-19 15:55:42,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:42,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 80 [2023-12-19 15:55:42,358 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 177 treesize of output 137 [2023-12-19 15:55:42,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:42,362 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 137 treesize of output 153 [2023-12-19 15:55:42,379 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 42 [2023-12-19 15:55:42,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:42,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 313 treesize of output 153 [2023-12-19 15:55:42,531 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:42,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 313 treesize of output 153 [2023-12-19 15:55:42,730 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:42,730 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 328 treesize of output 122 [2023-12-19 15:55:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:55:42,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:42,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:42,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259103304] [2023-12-19 15:55:42,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:55:42,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752235042] [2023-12-19 15:55:42,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752235042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:42,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:42,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:55:42,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496597620] [2023-12-19 15:55:42,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:42,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:55:42,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:42,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:55:42,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:55:42,771 INFO L87 Difference]: Start difference. First operand 147 states and 202 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:43,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:43,211 INFO L93 Difference]: Finished difference Result 326 states and 448 transitions. [2023-12-19 15:55:43,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:55:43,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-19 15:55:43,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:43,213 INFO L225 Difference]: With dead ends: 326 [2023-12-19 15:55:43,213 INFO L226 Difference]: Without dead ends: 180 [2023-12-19 15:55:43,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:55:43,213 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 115 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:43,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 669 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:43,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-19 15:55:43,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 131. [2023-12-19 15:55:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.3148148148148149) internal successors, (142), 108 states have internal predecessors, (142), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 180 transitions. [2023-12-19 15:55:43,219 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 180 transitions. Word has length 149 [2023-12-19 15:55:43,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:43,220 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 180 transitions. [2023-12-19 15:55:43,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:55:43,220 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 180 transitions. [2023-12-19 15:55:43,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 15:55:43,221 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:43,221 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:43,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 15:55:43,428 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 15:55:43,429 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:43,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:43,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1614847821, now seen corresponding path program 1 times [2023-12-19 15:55:43,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:43,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068793961] [2023-12-19 15:55:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:43,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:43,449 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:55:43,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046917760] [2023-12-19 15:55:43,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:43,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:43,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:43,451 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 15:55:43,471 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 15:55:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-19 15:55:43,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:43,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:43,927 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 46 treesize of output 16 [2023-12-19 15:55:43,959 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 29 treesize of output 13 [2023-12-19 15:55:44,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:44,018 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 38 treesize of output 25 [2023-12-19 15:55:44,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:44,042 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 38 treesize of output 25 [2023-12-19 15:55:44,079 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:44,080 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 38 treesize of output 25 [2023-12-19 15:55:44,130 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:44,130 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 38 treesize of output 25 [2023-12-19 15:55:44,160 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:44,160 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 38 treesize of output 25 [2023-12-19 15:55:44,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:44,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 58 treesize of output 40 [2023-12-19 15:55:44,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:44,263 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 52 treesize of output 16 [2023-12-19 15:55:44,275 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 374 proven. 63 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-12-19 15:55:44,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:55:44,683 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:44,684 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 36 treesize of output 1 [2023-12-19 15:55:44,694 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 39 proven. 66 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2023-12-19 15:55:44,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:44,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068793961] [2023-12-19 15:55:44,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:55:44,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046917760] [2023-12-19 15:55:44,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046917760] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:55:44,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:55:44,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-12-19 15:55:44,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235992350] [2023-12-19 15:55:44,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:55:44,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-19 15:55:44,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:44,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-19 15:55:44,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2023-12-19 15:55:44,696 INFO L87 Difference]: Start difference. First operand 131 states and 180 transitions. Second operand has 26 states, 22 states have (on average 4.681818181818182) internal successors, (103), 26 states have internal predecessors, (103), 9 states have call successors, (32), 3 states have call predecessors, (32), 7 states have return successors, (32), 5 states have call predecessors, (32), 9 states have call successors, (32) [2023-12-19 15:55:45,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:45,550 INFO L93 Difference]: Finished difference Result 322 states and 433 transitions. [2023-12-19 15:55:45,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 15:55:45,551 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 4.681818181818182) internal successors, (103), 26 states have internal predecessors, (103), 9 states have call successors, (32), 3 states have call predecessors, (32), 7 states have return successors, (32), 5 states have call predecessors, (32), 9 states have call successors, (32) Word has length 152 [2023-12-19 15:55:45,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:45,552 INFO L225 Difference]: With dead ends: 322 [2023-12-19 15:55:45,552 INFO L226 Difference]: Without dead ends: 192 [2023-12-19 15:55:45,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2023-12-19 15:55:45,553 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 922 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:45,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 601 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:55:45,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-19 15:55:45,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 141. [2023-12-19 15:55:45,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 116 states have (on average 1.293103448275862) internal successors, (150), 116 states have internal predecessors, (150), 19 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:55:45,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 188 transitions. [2023-12-19 15:55:45,560 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 188 transitions. Word has length 152 [2023-12-19 15:55:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:45,561 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 188 transitions. [2023-12-19 15:55:45,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 4.681818181818182) internal successors, (103), 26 states have internal predecessors, (103), 9 states have call successors, (32), 3 states have call predecessors, (32), 7 states have return successors, (32), 5 states have call predecessors, (32), 9 states have call successors, (32) [2023-12-19 15:55:45,561 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 188 transitions. [2023-12-19 15:55:45,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 15:55:45,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:45,562 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:45,575 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 15:55:45,775 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 15:55:45,775 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:45,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:45,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1676887435, now seen corresponding path program 1 times [2023-12-19 15:55:45,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:45,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174989887] [2023-12-19 15:55:45,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:45,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:45,795 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:55:45,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236247910] [2023-12-19 15:55:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:45,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:45,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:45,796 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:55:45,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 15:55:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:46,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-19 15:55:46,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:46,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,111 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 46 treesize of output 16 [2023-12-19 15:55:46,139 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 29 treesize of output 13 [2023-12-19 15:55:46,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,201 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 38 treesize of output 25 [2023-12-19 15:55:46,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,227 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 38 treesize of output 25 [2023-12-19 15:55:46,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,253 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 38 treesize of output 25 [2023-12-19 15:55:46,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,315 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 38 treesize of output 25 [2023-12-19 15:55:46,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,349 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 38 treesize of output 25 [2023-12-19 15:55:46,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,388 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 34 treesize of output 25 [2023-12-19 15:55:46,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,399 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 38 treesize of output 25 [2023-12-19 15:55:46,410 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 70 treesize of output 54 [2023-12-19 15:55:46,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 90 [2023-12-19 15:55:46,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 15:55:46,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 15:55:46,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2023-12-19 15:55:46,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 99 treesize of output 59 [2023-12-19 15:55:46,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 99 treesize of output 59 [2023-12-19 15:55:46,708 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:46,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 41 [2023-12-19 15:55:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 374 proven. 63 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-12-19 15:55:46,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:55:58,997 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:58,998 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 36 treesize of output 1 [2023-12-19 15:55:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 39 proven. 66 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2023-12-19 15:55:59,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:59,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174989887] [2023-12-19 15:55:59,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:55:59,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236247910] [2023-12-19 15:55:59,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236247910] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:55:59,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:55:59,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2023-12-19 15:55:59,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194380116] [2023-12-19 15:55:59,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:55:59,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-19 15:55:59,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:59,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-19 15:55:59,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=529, Unknown=3, NotChecked=0, Total=702 [2023-12-19 15:55:59,008 INFO L87 Difference]: Start difference. First operand 141 states and 188 transitions. Second operand has 27 states, 23 states have (on average 5.043478260869565) internal successors, (116), 27 states have internal predecessors, (116), 9 states have call successors, (32), 3 states have call predecessors, (32), 7 states have return successors, (32), 5 states have call predecessors, (32), 9 states have call successors, (32) [2023-12-19 15:56:00,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:00,020 INFO L93 Difference]: Finished difference Result 360 states and 477 transitions. [2023-12-19 15:56:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-19 15:56:00,021 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 5.043478260869565) internal successors, (116), 27 states have internal predecessors, (116), 9 states have call successors, (32), 3 states have call predecessors, (32), 7 states have return successors, (32), 5 states have call predecessors, (32), 9 states have call successors, (32) Word has length 152 [2023-12-19 15:56:00,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:00,022 INFO L225 Difference]: With dead ends: 360 [2023-12-19 15:56:00,022 INFO L226 Difference]: Without dead ends: 220 [2023-12-19 15:56:00,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=408, Invalid=1229, Unknown=3, NotChecked=0, Total=1640 [2023-12-19 15:56:00,023 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 375 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:00,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 602 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:56:00,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-19 15:56:00,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 150. [2023-12-19 15:56:00,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 124 states have (on average 1.282258064516129) internal successors, (159), 124 states have internal predecessors, (159), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:56:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 197 transitions. [2023-12-19 15:56:00,030 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 197 transitions. Word has length 152 [2023-12-19 15:56:00,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:00,031 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 197 transitions. [2023-12-19 15:56:00,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 5.043478260869565) internal successors, (116), 27 states have internal predecessors, (116), 9 states have call successors, (32), 3 states have call predecessors, (32), 7 states have return successors, (32), 5 states have call predecessors, (32), 9 states have call successors, (32) [2023-12-19 15:56:00,031 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 197 transitions. [2023-12-19 15:56:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 15:56:00,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:00,034 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:00,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 15:56:00,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 15:56:00,236 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:00,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:00,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1090081421, now seen corresponding path program 1 times [2023-12-19 15:56:00,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:00,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793769739] [2023-12-19 15:56:00,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:00,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:00,266 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:56:00,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066369311] [2023-12-19 15:56:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:00,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:56:00,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:56:00,283 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:56:00,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 15:56:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-19 15:56:00,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:56:00,841 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:00,841 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 28 treesize of output 10 [2023-12-19 15:56:00,866 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 15:56:00,878 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 15:56:00,890 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 15:56:00,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:00,953 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 41 treesize of output 28 [2023-12-19 15:56:00,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:00,988 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 41 treesize of output 28 [2023-12-19 15:56:01,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:01,026 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 37 treesize of output 28 [2023-12-19 15:56:01,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:01,039 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 41 treesize of output 28 [2023-12-19 15:56:01,059 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 73 treesize of output 57 [2023-12-19 15:56:01,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 93 [2023-12-19 15:56:01,074 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 133 treesize of output 109 [2023-12-19 15:56:01,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 69 [2023-12-19 15:56:01,158 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:01,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 47 treesize of output 23 [2023-12-19 15:56:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-12-19 15:56:01,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:56:01,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:01,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793769739] [2023-12-19 15:56:01,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:56:01,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066369311] [2023-12-19 15:56:01,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066369311] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:56:01,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:56:01,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-12-19 15:56:01,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791685650] [2023-12-19 15:56:01,770 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-19 15:56:01,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 15:56:01,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:01,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 15:56:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:56:01,772 INFO L87 Difference]: Start difference. First operand 150 states and 197 transitions. Second operand has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 5 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-19 15:56:02,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:02,290 INFO L93 Difference]: Finished difference Result 311 states and 403 transitions. [2023-12-19 15:56:02,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:56:02,290 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 5 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 152 [2023-12-19 15:56:02,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:02,291 INFO L225 Difference]: With dead ends: 311 [2023-12-19 15:56:02,291 INFO L226 Difference]: Without dead ends: 162 [2023-12-19 15:56:02,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2023-12-19 15:56:02,292 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 158 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:02,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 315 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:56:02,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-19 15:56:02,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 158. [2023-12-19 15:56:02,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 130 states have internal predecessors, (163), 19 states have call successors, (19), 8 states have call predecessors, (19), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:56:02,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 201 transitions. [2023-12-19 15:56:02,300 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 201 transitions. Word has length 152 [2023-12-19 15:56:02,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:02,301 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 201 transitions. [2023-12-19 15:56:02,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 5 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-19 15:56:02,301 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 201 transitions. [2023-12-19 15:56:02,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-19 15:56:02,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:02,302 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:02,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 15:56:02,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 15:56:02,512 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:02,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1389995833, now seen corresponding path program 1 times [2023-12-19 15:56:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697805598] [2023-12-19 15:56:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:02,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:02,555 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:56:02,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [511255184] [2023-12-19 15:56:02,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:02,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:56:02,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:56:02,557 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:56:02,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 15:56:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-19 15:56:02,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:56:02,792 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 31 treesize of output 15 [2023-12-19 15:56:02,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:02,846 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 38 treesize of output 29 [2023-12-19 15:56:02,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:02,879 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 42 treesize of output 29 [2023-12-19 15:56:02,905 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 74 treesize of output 58 [2023-12-19 15:56:02,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:02,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 94 [2023-12-19 15:56:02,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2023-12-19 15:56:02,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:56:02,995 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 117 treesize of output 57 [2023-12-19 15:56:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 184 proven. 3 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2023-12-19 15:56:03,006 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:56:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2023-12-19 15:56:03,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697805598] [2023-12-19 15:56:03,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:56:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511255184] [2023-12-19 15:56:03,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511255184] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:56:03,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:56:03,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 17 [2023-12-19 15:56:03,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911054437] [2023-12-19 15:56:03,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:56:03,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-19 15:56:03,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:03,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-19 15:56:03,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:56:03,211 INFO L87 Difference]: Start difference. First operand 158 states and 201 transitions. Second operand has 17 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 17 states have internal predecessors, (87), 7 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 7 states have call successors, (22) [2023-12-19 15:56:03,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:03,746 INFO L93 Difference]: Finished difference Result 325 states and 410 transitions. [2023-12-19 15:56:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 15:56:03,746 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 17 states have internal predecessors, (87), 7 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 7 states have call successors, (22) Word has length 154 [2023-12-19 15:56:03,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:03,747 INFO L225 Difference]: With dead ends: 325 [2023-12-19 15:56:03,747 INFO L226 Difference]: Without dead ends: 168 [2023-12-19 15:56:03,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 286 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2023-12-19 15:56:03,748 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 268 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:03,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 316 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:56:03,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-19 15:56:03,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2023-12-19 15:56:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 133 states have (on average 1.2330827067669172) internal successors, (164), 133 states have internal predecessors, (164), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:56:03,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 202 transitions. [2023-12-19 15:56:03,759 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 202 transitions. Word has length 154 [2023-12-19 15:56:03,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:03,759 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 202 transitions. [2023-12-19 15:56:03,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 17 states have internal predecessors, (87), 7 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 7 states have call successors, (22) [2023-12-19 15:56:03,760 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 202 transitions. [2023-12-19 15:56:03,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-19 15:56:03,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:03,760 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:03,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 15:56:03,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-19 15:56:03,968 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:03,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:03,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1099533129, now seen corresponding path program 1 times [2023-12-19 15:56:03,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:03,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835143066] [2023-12-19 15:56:03,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:03,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:03,992 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:56:03,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352045766] [2023-12-19 15:56:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:03,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:56:03,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:56:03,993 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:56:03,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 15:56:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 15:56:04,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:56:04,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-19 15:56:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:56:04,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:56:04,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:04,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835143066] [2023-12-19 15:56:04,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:56:04,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352045766] [2023-12-19 15:56:04,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352045766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:04,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:04,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:56:04,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035039154] [2023-12-19 15:56:04,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:04,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:56:04,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:04,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:56:04,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:56:04,297 INFO L87 Difference]: Start difference. First operand 162 states and 202 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:56:04,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:04,427 INFO L93 Difference]: Finished difference Result 323 states and 403 transitions. [2023-12-19 15:56:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:56:04,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2023-12-19 15:56:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:04,432 INFO L225 Difference]: With dead ends: 323 [2023-12-19 15:56:04,433 INFO L226 Difference]: Without dead ends: 162 [2023-12-19 15:56:04,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:56:04,433 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 126 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:04,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 248 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:56:04,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-19 15:56:04,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-12-19 15:56:04,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 133 states have (on average 1.218045112781955) internal successors, (162), 133 states have internal predecessors, (162), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:56:04,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 200 transitions. [2023-12-19 15:56:04,443 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 200 transitions. Word has length 154 [2023-12-19 15:56:04,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:04,443 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 200 transitions. [2023-12-19 15:56:04,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:56:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 200 transitions. [2023-12-19 15:56:04,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-19 15:56:04,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:04,450 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:04,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-19 15:56:04,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:56:04,667 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:04,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:04,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1398766162, now seen corresponding path program 1 times [2023-12-19 15:56:04,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:04,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870749203] [2023-12-19 15:56:04,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:04,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:04,703 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:56:04,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640807421] [2023-12-19 15:56:04,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:04,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:56:04,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:56:04,716 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:56:04,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 15:56:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:56:05,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 15:56:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:56:05,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 15:56:05,594 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 15:56:05,595 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:56:05,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-19 15:56:05,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-19 15:56:05,799 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:56:05,802 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 15:56:05,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:56:05 BoogieIcfgContainer [2023-12-19 15:56:05,887 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 15:56:05,887 INFO L158 Benchmark]: Toolchain (without parser) took 38601.15ms. Allocated memory was 168.8MB in the beginning and 391.1MB in the end (delta: 222.3MB). Free memory was 133.3MB in the beginning and 275.4MB in the end (delta: -142.1MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. [2023-12-19 15:56:05,887 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 168.8MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:56:05,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.85ms. Allocated memory is still 168.8MB. Free memory was 133.3MB in the beginning and 116.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 15:56:05,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.84ms. Allocated memory is still 168.8MB. Free memory was 116.5MB in the beginning and 112.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:56:05,888 INFO L158 Benchmark]: Boogie Preprocessor took 67.79ms. Allocated memory is still 168.8MB. Free memory was 112.3MB in the beginning and 108.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:56:05,888 INFO L158 Benchmark]: RCFGBuilder took 572.68ms. Allocated memory is still 168.8MB. Free memory was 108.1MB in the beginning and 76.2MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-19 15:56:05,888 INFO L158 Benchmark]: TraceAbstraction took 37625.51ms. Allocated memory was 168.8MB in the beginning and 391.1MB in the end (delta: 222.3MB). Free memory was 75.6MB in the beginning and 275.4MB in the end (delta: -199.8MB). Peak memory consumption was 23.0MB. Max. memory is 8.0GB. [2023-12-19 15:56:05,893 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 168.8MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 269.85ms. Allocated memory is still 168.8MB. Free memory was 133.3MB in the beginning and 116.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.84ms. Allocated memory is still 168.8MB. Free memory was 116.5MB in the beginning and 112.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.79ms. Allocated memory is still 168.8MB. Free memory was 112.3MB in the beginning and 108.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 572.68ms. Allocated memory is still 168.8MB. Free memory was 108.1MB in the beginning and 76.2MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 37625.51ms. Allocated memory was 168.8MB in the beginning and 391.1MB in the end (delta: 222.3MB). Free memory was 75.6MB in the beginning and 275.4MB in the end (delta: -199.8MB). Peak memory consumption was 23.0MB. 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 someBinaryDOUBLEComparisonOperation at line 115. Possible FailurePath: [L40] unsigned char isInitial = 0; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 32, 2, 8, 0, 32, 10, 1000000.625, 16.65, 15.5, 500, 8, 0, 100, 0, 0, 2.4 }; [L119] isInitial = 1 [L120] FCALL initially() [L121] COND TRUE 1 [L122] FCALL updateLastVariables() [L123] CALL updateVariables() [L82] WrapperStruct00.var_1_2 = __VERIFIER_nondet_char() [L83] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L83] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L83] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L84] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L84] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L84] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L85] WrapperStruct00.var_1_3 = __VERIFIER_nondet_char() [L86] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L87] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L87] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L88] WrapperStruct00.var_1_4 = __VERIFIER_nondet_char() [L89] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L90] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L91] WrapperStruct00.var_1_5 = __VERIFIER_nondet_char() [L92] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L94] WrapperStruct00.var_1_6 = __VERIFIER_nondet_char() [L95] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L97] WrapperStruct00.var_1_8 = __VERIFIER_nondet_double() [L98] EXPR WrapperStruct00.var_1_8 [L98] EXPR WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L98] EXPR WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F [L98] EXPR WrapperStruct00.var_1_8 [L98] EXPR WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L98] EXPR (WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L98] EXPR (WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not((WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L98] RET assume_abort_if_not((WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] WrapperStruct00.var_1_9 = __VERIFIER_nondet_double() [L100] EXPR WrapperStruct00.var_1_9 [L100] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L100] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F [L100] EXPR WrapperStruct00.var_1_9 [L100] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L100] EXPR (WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] EXPR (WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] CALL assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L100] RET assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] WrapperStruct00.var_1_14 = __VERIFIER_nondet_ushort() [L102] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L103] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 65535) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 65535) VAL [WrapperStruct00={4:0}, isInitial=1] [L104] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_14 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_14 != 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L105] WrapperStruct00.var_1_15 = __VERIFIER_nondet_uchar() [L106] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L108] WrapperStruct00.var_1_16 = __VERIFIER_nondet_uchar() [L109] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L109] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L110] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L123] RET updateVariables() [L124] CALL step() [L62] EXPR WrapperStruct00.var_1_2 [L62] EXPR WrapperStruct00.var_1_3 [L62] EXPR WrapperStruct00.var_1_4 [L62] EXPR WrapperStruct00.var_1_5 [L62] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L62] EXPR ((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6)) [L62] EXPR WrapperStruct00.var_1_4 [L62] EXPR ((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1] [L62] WrapperStruct00.var_1_1 = ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))) [L63] EXPR WrapperStruct00.var_1_5 [L63] EXPR WrapperStruct00.var_1_6 [L63] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L63] EXPR WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L63] signed long int stepLocal_0 = (~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3); [L64] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L64] COND FALSE !(stepLocal_0 >= WrapperStruct00.var_1_4) [L67] EXPR WrapperStruct00.var_1_9 [L67] WrapperStruct00.var_1_7 = WrapperStruct00.var_1_9 [L69] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L69] EXPR ((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2) [L69] EXPR WrapperStruct00.var_1_2 [L69] EXPR ((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=0] [L69] WrapperStruct00.var_1_10 = ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2))) [L70] EXPR WrapperStruct00.var_1_6 [L70] EXPR WrapperStruct00.var_1_14 [L70] signed long int stepLocal_1 = WrapperStruct00.var_1_6 / WrapperStruct00.var_1_14; [L71] COND FALSE !(stepLocal_1 < -100) [L74] EXPR WrapperStruct00.var_1_15 [L74] EXPR WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=0, stepLocal_1=1] [L74] EXPR WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L74] WrapperStruct00.var_1_13 = (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16) [L76] EXPR WrapperStruct00.var_1_8 [L76] WrapperStruct00.var_1_17 = WrapperStruct00.var_1_8 [L77] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L77] COND TRUE ! WrapperStruct00.var_1_13 [L78] EXPR WrapperStruct00.var_1_5 [L78] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L78] EXPR ((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1) [L78] EXPR WrapperStruct00.var_1_6 [L78] EXPR ((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=0, stepLocal_1=1] [L78] WrapperStruct00.var_1_11 = (WrapperStruct00.var_1_5 + (((((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1))) + 64)) [L124] RET step() [L125] CALL, EXPR property() [L115] EXPR WrapperStruct00.var_1_1 [L115] EXPR WrapperStruct00.var_1_2 [L115] EXPR WrapperStruct00.var_1_3 [L115] EXPR WrapperStruct00.var_1_4 [L115] EXPR WrapperStruct00.var_1_5 [L115] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR ((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6)) [L115] EXPR WrapperStruct00.var_1_4 [L115] EXPR ((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9))) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9))) [L115] EXPR WrapperStruct00.var_1_5 [L115] EXPR WrapperStruct00.var_1_6 [L115] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)) [L115] EXPR WrapperStruct00.var_1_7 [L115] EXPR WrapperStruct00.var_1_9 [L115] EXPR (((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9))) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR ((WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)))) && (WrapperStruct00.var_1_10 == ((signed short int) ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR ((WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)))) && (WrapperStruct00.var_1_10 == ((signed short int) ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (((WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)))) && (WrapperStruct00.var_1_10 == ((signed short int) ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))))) && ((! WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_11 == ((unsigned short int) (WrapperStruct00.var_1_5 + (((((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1))) + 64)))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (((WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)))) && (WrapperStruct00.var_1_10 == ((signed short int) ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))))) && ((! WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_11 == ((unsigned short int) (WrapperStruct00.var_1_5 + (((((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1))) + 64)))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR ((((WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)))) && (WrapperStruct00.var_1_10 == ((signed short int) ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))))) && ((! WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_11 == ((unsigned short int) (WrapperStruct00.var_1_5 + (((((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1))) + 64)))) : 1)) && (((WrapperStruct00.var_1_6 / WrapperStruct00.var_1_14) < -100) ? (WrapperStruct00.var_1_13 == ((unsigned char) (! (! (! WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16)))) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR ((((WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)))) && (WrapperStruct00.var_1_10 == ((signed short int) ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))))) && ((! WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_11 == ((unsigned short int) (WrapperStruct00.var_1_5 + (((((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1))) + 64)))) : 1)) && (((WrapperStruct00.var_1_6 / WrapperStruct00.var_1_14) < -100) ? (WrapperStruct00.var_1_13 == ((unsigned char) (! (! (! WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16)))) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (((((WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)))) && (WrapperStruct00.var_1_10 == ((signed short int) ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))))) && ((! WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_11 == ((unsigned short int) (WrapperStruct00.var_1_5 + (((((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1))) + 64)))) : 1)) && (((WrapperStruct00.var_1_6 / WrapperStruct00.var_1_14) < -100) ? (WrapperStruct00.var_1_13 == ((unsigned char) (! (! (! WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_8)) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (((((WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)))) && (WrapperStruct00.var_1_10 == ((signed short int) ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))))) && ((! WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_11 == ((unsigned short int) (WrapperStruct00.var_1_5 + (((((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1))) + 64)))) : 1)) && (((WrapperStruct00.var_1_6 / WrapperStruct00.var_1_14) < -100) ? (WrapperStruct00.var_1_13 == ((unsigned char) (! (! (! WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_8)) VAL [WrapperStruct00={4:0}, isInitial=1] [L115-L116] return (((((WrapperStruct00.var_1_1 == ((signed char) ((WrapperStruct00.var_1_2 + WrapperStruct00.var_1_3) - ((((WrapperStruct00.var_1_4) > ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_4) : ((WrapperStruct00.var_1_5 + WrapperStruct00.var_1_6))))))) && ((((~ WrapperStruct00.var_1_5) * (WrapperStruct00.var_1_6 & WrapperStruct00.var_1_3)) >= WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((double) WrapperStruct00.var_1_9)))) && (WrapperStruct00.var_1_10 == ((signed short int) ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))))) && ((! WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_11 == ((unsigned short int) (WrapperStruct00.var_1_5 + (((((WrapperStruct00.var_1_6) > (1)) ? (WrapperStruct00.var_1_6) : (1))) + 64)))) : 1)) && (((WrapperStruct00.var_1_6 / WrapperStruct00.var_1_14) < -100) ? (WrapperStruct00.var_1_13 == ((unsigned char) (! (! (! WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_8)) ; [L125] RET, EXPR property() [L125] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.5s, OverallIterations: 15, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2903 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2850 mSDsluCounter, 6701 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5160 mSDsCounter, 469 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6174 IncrementalHoareTripleChecker+Invalid, 6643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 469 mSolverCounterUnsat, 1541 mSDtfsCounter, 6174 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2971 GetRequests, 2738 SyntacticMatches, 6 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1876 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred in iteration=6, InterpolantAutomatonStates: 158, 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, 14 MinimizatonAttempts, 362 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 22.4s InterpolantComputationTime, 2549 NumberOfCodeBlocks, 2549 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2832 ConstructedInterpolants, 4 QuantifiedInterpolants, 31045 SizeOfPredicates, 115 NumberOfNonLiveVariables, 7041 ConjunctsInSsa, 448 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 11965/12996 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 15:56:05,969 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 0 Received shutdown request...