/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-43.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 02:39:45,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:39:45,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 02:39:45,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:39:45,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:39:45,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:39:45,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:39:45,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:39:45,887 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:39:45,887 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:39:45,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:39:45,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:39:45,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:39:45,888 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:39:45,888 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:39:45,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:39:45,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:39:45,896 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:39:45,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:39:45,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:39:45,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:39:45,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:39:45,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:39:45,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:39:45,898 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:39:45,898 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:39:45,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:39:45,898 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:39:45,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:39:45,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:39:45,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:39:45,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:39:45,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:39:45,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:39:45,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:39:45,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:39:45,900 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:39:45,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:39:45,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:39:45,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:39:45,900 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:39:45,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:39:45,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:39:45,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:39:46,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:39:46,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:39:46,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:39:46,081 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:39:46,081 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:39:46,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-43.i [2023-12-21 02:39:47,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:39:47,193 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:39:47,194 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-43.i [2023-12-21 02:39:47,201 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5c3b544/3504cee3c52b4e9f8ea5fdcef34860e3/FLAGbff90e911 [2023-12-21 02:39:47,210 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5c3b544/3504cee3c52b4e9f8ea5fdcef34860e3 [2023-12-21 02:39:47,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:39:47,212 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:39:47,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:39:47,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:39:47,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:39:47,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528912f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47, skipping insertion in model container [2023-12-21 02:39:47,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,250 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:39:47,366 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-sp_file-43.i[917,930] [2023-12-21 02:39:47,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:39:47,418 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:39:47,425 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-sp_file-43.i[917,930] [2023-12-21 02:39:47,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:39:47,466 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:39:47,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47 WrapperNode [2023-12-21 02:39:47,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:39:47,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:39:47,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:39:47,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:39:47,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,518 INFO L138 Inliner]: procedures = 29, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 533 [2023-12-21 02:39:47,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:39:47,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:39:47,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:39:47,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:39:47,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,546 INFO L175 MemorySlicer]: Split 144 memory accesses to 2 slices as follows [2, 142]. 99 percent of accesses are in the largest equivalence class. The 20 initializations are split as follows [2, 18]. The 21 writes are split as follows [0, 21]. [2023-12-21 02:39:47,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:39:47,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:39:47,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:39:47,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:39:47,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (1/1) ... [2023-12-21 02:39:47,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:39:47,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:39:47,621 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) [2023-12-21 02:39:47,642 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 [2023-12-21 02:39:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:39:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-21 02:39:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-21 02:39:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:39:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:39:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-21 02:39:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-21 02:39:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:39:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:39:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-21 02:39:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-21 02:39:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:39:47,650 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:39:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:39:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:39:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:39:47,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:39:47,741 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:39:47,742 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:39:48,130 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:39:48,161 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:39:48,161 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:39:48,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:39:48 BoogieIcfgContainer [2023-12-21 02:39:48,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:39:48,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:39:48,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:39:48,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:39:48,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:39:47" (1/3) ... [2023-12-21 02:39:48,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcff8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:39:48, skipping insertion in model container [2023-12-21 02:39:48,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:39:47" (2/3) ... [2023-12-21 02:39:48,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcff8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:39:48, skipping insertion in model container [2023-12-21 02:39:48,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:39:48" (3/3) ... [2023-12-21 02:39:48,169 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-43.i [2023-12-21 02:39:48,180 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:39:48,180 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:39:48,207 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:39:48,211 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;@556600fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:39:48,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:39:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 82 states have (on average 1.4390243902439024) internal successors, (118), 83 states have internal predecessors, (118), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:39:48,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-21 02:39:48,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:39:48,224 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:39:48,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:39:48,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:39:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash -73313855, now seen corresponding path program 1 times [2023-12-21 02:39:48,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:39:48,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436885206] [2023-12-21 02:39:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:39:48,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:39:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:39:48,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:39:48,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436885206] [2023-12-21 02:39:48,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-21 02:39:48,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730716648] [2023-12-21 02:39:48,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:39:48,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:39:48,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:39:48,423 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) [2023-12-21 02:39:48,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 02:39:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:39:48,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 02:39:48,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:39:48,694 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-12-21 02:39:48,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:39:48,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730716648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:39:48,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:39:48,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:39:48,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807520068] [2023-12-21 02:39:48,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:39:48,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:39:48,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:39:48,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:39:48,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:39:48,725 INFO L87 Difference]: Start difference. First operand has 105 states, 82 states have (on average 1.4390243902439024) internal successors, (118), 83 states have internal predecessors, (118), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:39:48,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:39:48,789 INFO L93 Difference]: Finished difference Result 207 states and 334 transitions. [2023-12-21 02:39:48,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:39:48,791 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2023-12-21 02:39:48,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:39:48,799 INFO L225 Difference]: With dead ends: 207 [2023-12-21 02:39:48,799 INFO L226 Difference]: Without dead ends: 103 [2023-12-21 02:39:48,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:39:48,803 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:39:48,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:39:48,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-21 02:39:48,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-12-21 02:39:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 81 states have (on average 1.3950617283950617) internal successors, (113), 81 states have internal predecessors, (113), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:39:48,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 153 transitions. [2023-12-21 02:39:48,850 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 153 transitions. Word has length 159 [2023-12-21 02:39:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:39:48,851 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 153 transitions. [2023-12-21 02:39:48,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:39:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 153 transitions. [2023-12-21 02:39:48,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-21 02:39:48,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:39:48,860 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:39:48,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 02:39:49,070 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 [2023-12-21 02:39:49,071 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:39:49,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:39:49,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2110874209, now seen corresponding path program 1 times [2023-12-21 02:39:49,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:39:49,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812209320] [2023-12-21 02:39:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:39:49,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:39:49,175 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:39:49,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342304164] [2023-12-21 02:39:49,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:39:49,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:39:49,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:39:49,184 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) [2023-12-21 02:39:49,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 02:39:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:39:49,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:39:49,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:39:49,426 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:39:49,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:39:49,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:39:49,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812209320] [2023-12-21 02:39:49,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:39:49,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342304164] [2023-12-21 02:39:49,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342304164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:39:49,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:39:49,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:39:49,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029341822] [2023-12-21 02:39:49,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:39:49,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:39:49,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:39:49,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:39:49,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:39:49,430 INFO L87 Difference]: Start difference. First operand 103 states and 153 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:39:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:39:49,487 INFO L93 Difference]: Finished difference Result 217 states and 322 transitions. [2023-12-21 02:39:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:39:49,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-21 02:39:49,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:39:49,494 INFO L225 Difference]: With dead ends: 217 [2023-12-21 02:39:49,494 INFO L226 Difference]: Without dead ends: 115 [2023-12-21 02:39:49,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:39:49,499 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 21 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:39:49,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 437 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:39:49,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-21 02:39:49,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 105. [2023-12-21 02:39:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 83 states have internal predecessors, (115), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:39:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 155 transitions. [2023-12-21 02:39:49,514 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 155 transitions. Word has length 159 [2023-12-21 02:39:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:39:49,515 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 155 transitions. [2023-12-21 02:39:49,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:39:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 155 transitions. [2023-12-21 02:39:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-21 02:39:49,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:39:49,518 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:39:49,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 02:39:49,727 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 [2023-12-21 02:39:49,728 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:39:49,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:39:49,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1301527583, now seen corresponding path program 1 times [2023-12-21 02:39:49,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:39:49,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348975941] [2023-12-21 02:39:49,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:39:49,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:39:49,794 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:39:49,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408450006] [2023-12-21 02:39:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:39:49,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:39:49,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:39:49,802 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) [2023-12-21 02:39:49,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 02:39:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:39:49,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:39:49,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:39:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:39:50,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:39:50,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:39:50,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348975941] [2023-12-21 02:39:50,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:39:50,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408450006] [2023-12-21 02:39:50,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408450006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:39:50,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:39:50,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:39:50,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103880205] [2023-12-21 02:39:50,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:39:50,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:39:50,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:39:50,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:39:50,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:39:50,020 INFO L87 Difference]: Start difference. First operand 105 states and 155 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:39:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:39:50,059 INFO L93 Difference]: Finished difference Result 217 states and 320 transitions. [2023-12-21 02:39:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:39:50,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-21 02:39:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:39:50,061 INFO L225 Difference]: With dead ends: 217 [2023-12-21 02:39:50,061 INFO L226 Difference]: Without dead ends: 113 [2023-12-21 02:39:50,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:39:50,064 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 12 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:39:50,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 435 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:39:50,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-21 02:39:50,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2023-12-21 02:39:50,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:39:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 157 transitions. [2023-12-21 02:39:50,077 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 157 transitions. Word has length 159 [2023-12-21 02:39:50,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:39:50,077 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 157 transitions. [2023-12-21 02:39:50,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:39:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 157 transitions. [2023-12-21 02:39:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-21 02:39:50,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:39:50,080 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:39:50,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 02:39:50,288 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 [2023-12-21 02:39:50,289 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:39:50,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:39:50,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1358785885, now seen corresponding path program 1 times [2023-12-21 02:39:50,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:39:50,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874271898] [2023-12-21 02:39:50,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:39:50,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:39:50,341 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:39:50,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1916125655] [2023-12-21 02:39:50,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:39:50,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:39:50,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:39:50,342 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) [2023-12-21 02:39:50,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 02:39:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:39:50,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-21 02:39:50,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:39:52,581 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 15 treesize of output 1 [2023-12-21 02:39:52,850 INFO L349 Elim1Store]: treesize reduction 25, result has 41.9 percent of original size [2023-12-21 02:39:52,850 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 2 case distinctions, treesize of input 39 treesize of output 45 [2023-12-21 02:39:52,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:52,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:52,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:52,899 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-21 02:39:52,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 29 [2023-12-21 02:39:52,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:52,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:52,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:52,936 INFO L349 Elim1Store]: treesize reduction 46, result has 37.0 percent of original size [2023-12-21 02:39:52,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 46 [2023-12-21 02:39:53,476 INFO L349 Elim1Store]: treesize reduction 230, result has 27.2 percent of original size [2023-12-21 02:39:53,476 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 20 case distinctions, treesize of input 176 treesize of output 216 [2023-12-21 02:39:54,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:54,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:54,184 INFO L349 Elim1Store]: treesize reduction 192, result has 32.6 percent of original size [2023-12-21 02:39:54,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 71 treesize of output 159 [2023-12-21 02:39:57,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:57,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:57,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:57,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:57,640 INFO L349 Elim1Store]: treesize reduction 84, result has 27.0 percent of original size [2023-12-21 02:39:57,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 85 [2023-12-21 02:39:57,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:57,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:39:57,956 INFO L349 Elim1Store]: treesize reduction 192, result has 32.6 percent of original size [2023-12-21 02:39:57,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 75 treesize of output 163 [2023-12-21 02:40:04,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:04,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:04,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:04,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:04,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:04,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:04,070 INFO L349 Elim1Store]: treesize reduction 138, result has 26.6 percent of original size [2023-12-21 02:40:04,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 57 treesize of output 106 [2023-12-21 02:40:08,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:08,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:08,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:08,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:08,855 INFO L349 Elim1Store]: treesize reduction 84, result has 27.0 percent of original size [2023-12-21 02:40:08,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 85 [2023-12-21 02:40:09,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:09,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:09,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:09,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:09,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:09,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:09,094 INFO L349 Elim1Store]: treesize reduction 138, result has 26.6 percent of original size [2023-12-21 02:40:09,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 57 treesize of output 106 [2023-12-21 02:40:09,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:09,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:09,423 INFO L349 Elim1Store]: treesize reduction 192, result has 32.6 percent of original size [2023-12-21 02:40:09,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 71 treesize of output 159 [2023-12-21 02:40:35,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:35,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:40:35,989 INFO L349 Elim1Store]: treesize reduction 192, result has 32.6 percent of original size [2023-12-21 02:40:35,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 75 treesize of output 163 [2023-12-21 02:41:20,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:41:20,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:41:20,950 INFO L349 Elim1Store]: treesize reduction 236, result has 44.2 percent of original size [2023-12-21 02:41:20,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 67 treesize of output 245 [2023-12-21 02:41:59,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:41:59,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:41:59,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:41:59,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:41:59,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:41:59,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:41:59,226 INFO L349 Elim1Store]: treesize reduction 198, result has 37.7 percent of original size [2023-12-21 02:41:59,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 53 treesize of output 168 [2023-12-21 02:42:00,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:42:00,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:42:00,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:42:00,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:42:00,790 INFO L349 Elim1Store]: treesize reduction 152, result has 35.9 percent of original size [2023-12-21 02:42:00,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 49 treesize of output 131 [2023-12-21 02:42:10,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:42:10,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:42:11,166 INFO L349 Elim1Store]: treesize reduction 244, result has 42.3 percent of original size [2023-12-21 02:42:11,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 71 treesize of output 241 [2023-12-21 02:43:11,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:11,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:11,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:11,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:11,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:11,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:11,544 INFO L349 Elim1Store]: treesize reduction 138, result has 26.6 percent of original size [2023-12-21 02:43:11,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 57 treesize of output 106 [2023-12-21 02:43:11,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:11,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:11,781 INFO L349 Elim1Store]: treesize reduction 192, result has 32.6 percent of original size [2023-12-21 02:43:11,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 75 treesize of output 163 [2023-12-21 02:43:12,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:12,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:12,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:12,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:12,547 INFO L349 Elim1Store]: treesize reduction 84, result has 27.0 percent of original size [2023-12-21 02:43:12,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 85 [2023-12-21 02:43:12,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:12,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:12,915 INFO L349 Elim1Store]: treesize reduction 192, result has 32.6 percent of original size [2023-12-21 02:43:12,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 71 treesize of output 159 [2023-12-21 02:43:14,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:14,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:15,068 INFO L349 Elim1Store]: treesize reduction 218, result has 38.4 percent of original size [2023-12-21 02:43:15,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 73 treesize of output 202 [2023-12-21 02:43:20,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:20,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:43:21,075 INFO L349 Elim1Store]: treesize reduction 218, result has 38.4 percent of original size [2023-12-21 02:43:21,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 69 treesize of output 198 [2023-12-21 02:44:37,299 WARN L293 SmtUtils]: Spent 15.03s on a formula simplification. DAG size of input: 3542 DAG size of output: 3542 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 02:46:20,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:20,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:20,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:20,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:20,152 INFO L349 Elim1Store]: treesize reduction 118, result has 33.0 percent of original size [2023-12-21 02:46:20,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 51 treesize of output 108 [2023-12-21 02:46:24,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:24,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:24,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:24,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:24,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:24,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:46:24,645 INFO L349 Elim1Store]: treesize reduction 168, result has 33.6 percent of original size [2023-12-21 02:46:24,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 55 treesize of output 137 [2023-12-21 02:47:07,928 WARN L293 SmtUtils]: Spent 21.21s on a formula simplification that was a NOOP. DAG size: 4489 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 02:48:14,358 WARN L293 SmtUtils]: Spent 25.13s on a formula simplification that was a NOOP. DAG size: 5297 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 02:50:17,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:50:17,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:50:18,056 INFO L349 Elim1Store]: treesize reduction 222, result has 37.3 percent of original size [2023-12-21 02:50:18,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 73 treesize of output 198 [2023-12-21 02:51:59,851 WARN L293 SmtUtils]: Spent 16.17s on a formula simplification. DAG size of input: 2344 DAG size of output: 2391 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 02:52:11,220 WARN L293 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 2337 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 02:53:20,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:53:20,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:53:20,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:53:20,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:53:20,127 INFO L349 Elim1Store]: treesize reduction 122, result has 30.7 percent of original size [2023-12-21 02:53:20,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 51 treesize of output 104 [2023-12-21 02:53:23,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:53:23,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:53:23,739 INFO L349 Elim1Store]: treesize reduction 222, result has 37.3 percent of original size [2023-12-21 02:53:23,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 69 treesize of output 194 Received shutdown request... [2023-12-21 02:54:05,949 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 02:54:05,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 02:54:05,977 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 02:54:05,992 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 02:54:06,150 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 [2023-12-21 02:54:06,151 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 160 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-16-4-1 context. [2023-12-21 02:54:06,154 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-21 02:54:06,156 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 02:54:06,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 02:54:06 BoogieIcfgContainer [2023-12-21 02:54:06,157 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 02:54:06,158 INFO L158 Benchmark]: Toolchain (without parser) took 858945.71ms. Allocated memory was 284.2MB in the beginning and 1.1GB in the end (delta: 835.7MB). Free memory was 239.0MB in the beginning and 498.0MB in the end (delta: -258.9MB). Peak memory consumption was 687.4MB. Max. memory is 8.0GB. [2023-12-21 02:54:06,158 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 222.3MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:54:06,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.87ms. Allocated memory is still 284.2MB. Free memory was 238.8MB in the beginning and 221.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-21 02:54:06,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.97ms. Allocated memory is still 284.2MB. Free memory was 221.9MB in the beginning and 217.6MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:54:06,159 INFO L158 Benchmark]: Boogie Preprocessor took 52.93ms. Allocated memory is still 284.2MB. Free memory was 217.6MB in the beginning and 212.1MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-21 02:54:06,160 INFO L158 Benchmark]: RCFGBuilder took 589.45ms. Allocated memory is still 284.2MB. Free memory was 212.1MB in the beginning and 229.1MB in the end (delta: -17.1MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-21 02:54:06,160 INFO L158 Benchmark]: TraceAbstraction took 857993.32ms. Allocated memory was 284.2MB in the beginning and 1.1GB in the end (delta: 835.7MB). Free memory was 228.1MB in the beginning and 498.0MB in the end (delta: -269.9MB). Peak memory consumption was 675.9MB. Max. memory is 8.0GB. [2023-12-21 02:54:06,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 222.3MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 253.87ms. Allocated memory is still 284.2MB. Free memory was 238.8MB in the beginning and 221.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.97ms. Allocated memory is still 284.2MB. Free memory was 221.9MB in the beginning and 217.6MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.93ms. Allocated memory is still 284.2MB. Free memory was 217.6MB in the beginning and 212.1MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 589.45ms. Allocated memory is still 284.2MB. Free memory was 212.1MB in the beginning and 229.1MB in the end (delta: -17.1MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 857993.32ms. Allocated memory was 284.2MB in the beginning and 1.1GB in the end (delta: 835.7MB). Free memory was 228.1MB in the beginning and 498.0MB in the end (delta: -269.9MB). Peak memory consumption was 675.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 160 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-16-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 858.0s, OverallIterations: 4, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 1020 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 582 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 438 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 476 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 12, 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, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 636 NumberOfCodeBlocks, 636 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 474 ConstructedInterpolants, 0 QuantifiedInterpolants, 478 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1846 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2280/2280 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown