/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_operatoramount_amount250_file-77.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:01:50,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:01:50,384 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:01:50,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:01:50,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:01:50,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:01:50,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:01:50,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:01:50,417 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:01:50,421 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:01:50,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:01:50,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:01:50,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:01:50,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:01:50,424 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:01:50,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:01:50,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:01:50,425 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:01:50,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:01:50,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:01:50,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:01:50,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:01:50,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:01:50,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:01:50,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:01:50,427 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:01:50,427 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:01:50,427 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:01:50,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:01:50,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:01:50,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:01:50,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:01:50,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:01:50,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:01:50,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:01:50,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:01:50,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:01:50,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:01:50,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:01:50,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:01:50,431 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:01:50,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:01:50,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:01:50,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:01:50,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:01:50,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:01:50,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:01:50,692 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:01:50,693 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:01:50,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-77.i [2023-12-16 04:01:51,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:01:52,149 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:01:52,150 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-77.i [2023-12-16 04:01:52,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290d5f6e3/3856c4f93ffd4fa18c2caed8d9322cfd/FLAGa49fc50bc [2023-12-16 04:01:52,176 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290d5f6e3/3856c4f93ffd4fa18c2caed8d9322cfd [2023-12-16 04:01:52,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:01:52,180 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:01:52,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:01:52,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:01:52,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:01:52,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9c9ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52, skipping insertion in model container [2023-12-16 04:01:52,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,246 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:01:52,371 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-77.i[916,929] [2023-12-16 04:01:52,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:01:52,567 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:01:52,580 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-77.i[916,929] [2023-12-16 04:01:52,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:01:52,661 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:01:52,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52 WrapperNode [2023-12-16 04:01:52,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:01:52,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:01:52,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:01:52,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:01:52,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,761 INFO L138 Inliner]: procedures = 26, calls = 72, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 415 [2023-12-16 04:01:52,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:01:52,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:01:52,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:01:52,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:01:52,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,779 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,809 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 04:01:52,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:01:52,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:01:52,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:01:52,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:01:52,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (1/1) ... [2023-12-16 04:01:52,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:01:52,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:52,992 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) [2023-12-16 04:01:53,021 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 [2023-12-16 04:01:53,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:01:53,031 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:01:53,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:01:53,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:01:53,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:01:53,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:01:53,163 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:01:53,167 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:01:53,821 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:01:53,874 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:01:53,874 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:01:53,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:01:53 BoogieIcfgContainer [2023-12-16 04:01:53,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:01:53,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:01:53,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:01:53,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:01:53,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:01:52" (1/3) ... [2023-12-16 04:01:53,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f60e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:01:53, skipping insertion in model container [2023-12-16 04:01:53,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:52" (2/3) ... [2023-12-16 04:01:53,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f60e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:01:53, skipping insertion in model container [2023-12-16 04:01:53,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:01:53" (3/3) ... [2023-12-16 04:01:53,883 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-77.i [2023-12-16 04:01:53,899 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:01:53,899 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:01:53,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:01:53,967 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;@611d03fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:01:53,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:01:53,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 101 states have (on average 1.495049504950495) internal successors, (151), 102 states have internal predecessors, (151), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 04:01:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-16 04:01:53,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:53,993 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:53,993 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:54,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:54,005 INFO L85 PathProgramCache]: Analyzing trace with hash 98386075, now seen corresponding path program 1 times [2023-12-16 04:01:54,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:54,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771867105] [2023-12-16 04:01:54,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:54,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:54,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:54,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771867105] [2023-12-16 04:01:54,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 04:01:54,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264602947] [2023-12-16 04:01:54,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:54,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:54,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:54,331 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) [2023-12-16 04:01:54,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:01:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:54,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 04:01:54,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 6728 trivial. 0 not checked. [2023-12-16 04:01:54,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:54,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264602947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:54,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:54,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:01:54,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937131748] [2023-12-16 04:01:54,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:54,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:01:54,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:54,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:01:54,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:01:54,791 INFO L87 Difference]: Start difference. First operand has 163 states, 101 states have (on average 1.495049504950495) internal successors, (151), 102 states have internal predecessors, (151), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-16 04:01:54,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:54,873 INFO L93 Difference]: Finished difference Result 323 states and 595 transitions. [2023-12-16 04:01:54,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:01:54,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 2 states have call successors, (59) Word has length 369 [2023-12-16 04:01:54,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:54,892 INFO L225 Difference]: With dead ends: 323 [2023-12-16 04:01:54,892 INFO L226 Difference]: Without dead ends: 161 [2023-12-16 04:01:54,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:01:54,902 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:54,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:01:54,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-16 04:01:54,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-12-16 04:01:54,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 100 states have (on average 1.45) internal successors, (145), 100 states have internal predecessors, (145), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 04:01:54,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 263 transitions. [2023-12-16 04:01:54,985 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 263 transitions. Word has length 369 [2023-12-16 04:01:54,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:54,986 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 263 transitions. [2023-12-16 04:01:54,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-16 04:01:54,986 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 263 transitions. [2023-12-16 04:01:54,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-16 04:01:54,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:54,999 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:55,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:55,208 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 [2023-12-16 04:01:55,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:55,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:55,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2141024017, now seen corresponding path program 1 times [2023-12-16 04:01:55,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:55,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788461592] [2023-12-16 04:01:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:55,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:55,306 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:55,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999843893] [2023-12-16 04:01:55,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:55,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:55,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:55,308 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) [2023-12-16 04:01:55,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:01:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:55,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:01:55,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:56,130 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 04:01:56,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:56,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:56,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788461592] [2023-12-16 04:01:56,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:56,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999843893] [2023-12-16 04:01:56,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999843893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:56,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:56,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:01:56,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933412966] [2023-12-16 04:01:56,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:56,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:01:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:01:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:01:56,138 INFO L87 Difference]: Start difference. First operand 161 states and 263 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:01:56,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:56,253 INFO L93 Difference]: Finished difference Result 481 states and 787 transitions. [2023-12-16 04:01:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 04:01:56,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 369 [2023-12-16 04:01:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:56,261 INFO L225 Difference]: With dead ends: 481 [2023-12-16 04:01:56,261 INFO L226 Difference]: Without dead ends: 321 [2023-12-16 04:01:56,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:01:56,265 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 90 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:56,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 761 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:01:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-16 04:01:56,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 318. [2023-12-16 04:01:56,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 197 states have (on average 1.4467005076142132) internal successors, (285), 197 states have internal predecessors, (285), 118 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2023-12-16 04:01:56,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 521 transitions. [2023-12-16 04:01:56,336 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 521 transitions. Word has length 369 [2023-12-16 04:01:56,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:56,337 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 521 transitions. [2023-12-16 04:01:56,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:01:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 521 transitions. [2023-12-16 04:01:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-16 04:01:56,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:56,341 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:56,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:56,541 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 [2023-12-16 04:01:56,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:56,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:56,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1452878701, now seen corresponding path program 1 times [2023-12-16 04:01:56,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:56,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714932650] [2023-12-16 04:01:56,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:56,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:56,637 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:56,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701454829] [2023-12-16 04:01:56,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:56,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:56,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:56,642 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) [2023-12-16 04:01:56,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:01:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:56,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 04:01:56,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:56,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 04:01:56,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:56,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:56,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714932650] [2023-12-16 04:01:56,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:56,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701454829] [2023-12-16 04:01:56,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701454829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:56,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:56,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:01:56,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422908703] [2023-12-16 04:01:56,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:56,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:01:56,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:56,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:01:56,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:01:56,943 INFO L87 Difference]: Start difference. First operand 318 states and 521 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:01:57,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:57,011 INFO L93 Difference]: Finished difference Result 798 states and 1307 transitions. [2023-12-16 04:01:57,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:01:57,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 369 [2023-12-16 04:01:57,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:57,016 INFO L225 Difference]: With dead ends: 798 [2023-12-16 04:01:57,016 INFO L226 Difference]: Without dead ends: 481 [2023-12-16 04:01:57,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:01:57,020 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 121 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:57,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 590 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:01:57,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-12-16 04:01:57,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 477. [2023-12-16 04:01:57,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 326 states have (on average 1.4969325153374233) internal successors, (488), 328 states have internal predecessors, (488), 146 states have call successors, (146), 4 states have call predecessors, (146), 4 states have return successors, (146), 144 states have call predecessors, (146), 146 states have call successors, (146) [2023-12-16 04:01:57,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 780 transitions. [2023-12-16 04:01:57,071 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 780 transitions. Word has length 369 [2023-12-16 04:01:57,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:57,073 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 780 transitions. [2023-12-16 04:01:57,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:01:57,073 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 780 transitions. [2023-12-16 04:01:57,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-16 04:01:57,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:57,076 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:57,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:57,284 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 [2023-12-16 04:01:57,285 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:57,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:57,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1998083093, now seen corresponding path program 1 times [2023-12-16 04:01:57,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:57,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328673926] [2023-12-16 04:01:57,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:57,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:57,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:57,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017992778] [2023-12-16 04:01:57,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:57,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:57,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:57,346 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) [2023-12-16 04:01:57,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:01:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:57,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 04:01:57,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 04:01:57,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:57,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:57,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328673926] [2023-12-16 04:01:57,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:57,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017992778] [2023-12-16 04:01:57,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017992778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:57,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:57,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:01:57,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520560265] [2023-12-16 04:01:57,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:57,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:01:57,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:57,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:01:57,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:01:57,660 INFO L87 Difference]: Start difference. First operand 477 states and 780 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:01:57,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:57,754 INFO L93 Difference]: Finished difference Result 1397 states and 2284 transitions. [2023-12-16 04:01:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:01:57,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 369 [2023-12-16 04:01:57,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:57,762 INFO L225 Difference]: With dead ends: 1397 [2023-12-16 04:01:57,762 INFO L226 Difference]: Without dead ends: 921 [2023-12-16 04:01:57,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:01:57,765 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 233 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:57,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 669 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:01:57,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2023-12-16 04:01:57,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 551. [2023-12-16 04:01:57,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 400 states have (on average 1.505) internal successors, (602), 402 states have internal predecessors, (602), 146 states have call successors, (146), 4 states have call predecessors, (146), 4 states have return successors, (146), 144 states have call predecessors, (146), 146 states have call successors, (146) [2023-12-16 04:01:57,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 894 transitions. [2023-12-16 04:01:57,828 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 894 transitions. Word has length 369 [2023-12-16 04:01:57,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:57,829 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 894 transitions. [2023-12-16 04:01:57,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:01:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 894 transitions. [2023-12-16 04:01:57,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-16 04:01:57,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:57,832 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:57,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:58,042 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 [2023-12-16 04:01:58,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:58,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:58,043 INFO L85 PathProgramCache]: Analyzing trace with hash -422102761, now seen corresponding path program 1 times [2023-12-16 04:01:58,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:58,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801260388] [2023-12-16 04:01:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:58,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:58,086 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:58,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1331412007] [2023-12-16 04:01:58,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:58,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:58,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:58,088 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) [2023-12-16 04:01:58,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:01:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:58,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 04:01:58,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:58,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 04:01:58,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:58,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:58,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801260388] [2023-12-16 04:01:58,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:58,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331412007] [2023-12-16 04:01:58,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331412007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:58,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:58,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:01:58,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841546213] [2023-12-16 04:01:58,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:58,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:01:58,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:58,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:01:58,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:01:58,381 INFO L87 Difference]: Start difference. First operand 551 states and 894 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:01:58,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:58,806 INFO L93 Difference]: Finished difference Result 1753 states and 2816 transitions. [2023-12-16 04:01:58,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:01:58,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 370 [2023-12-16 04:01:58,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:58,813 INFO L225 Difference]: With dead ends: 1753 [2023-12-16 04:01:58,814 INFO L226 Difference]: Without dead ends: 1197 [2023-12-16 04:01:58,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:01:58,816 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 465 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:58,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 935 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:01:58,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2023-12-16 04:01:58,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 710. [2023-12-16 04:01:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 531 states have (on average 1.4858757062146892) internal successors, (789), 535 states have internal predecessors, (789), 170 states have call successors, (170), 8 states have call predecessors, (170), 8 states have return successors, (170), 166 states have call predecessors, (170), 170 states have call successors, (170) [2023-12-16 04:01:58,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1129 transitions. [2023-12-16 04:01:58,903 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1129 transitions. Word has length 370 [2023-12-16 04:01:58,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:58,904 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 1129 transitions. [2023-12-16 04:01:58,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:01:58,904 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1129 transitions. [2023-12-16 04:01:58,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-12-16 04:01:58,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:58,909 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:58,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:59,116 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 [2023-12-16 04:01:59,117 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:59,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:59,117 INFO L85 PathProgramCache]: Analyzing trace with hash -669734230, now seen corresponding path program 1 times [2023-12-16 04:01:59,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:59,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571337163] [2023-12-16 04:01:59,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:59,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:59,164 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:59,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092977289] [2023-12-16 04:01:59,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:59,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:59,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:59,166 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) [2023-12-16 04:01:59,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 04:01:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:59,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 04:01:59,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 04:01:59,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:59,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:59,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571337163] [2023-12-16 04:01:59,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:59,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092977289] [2023-12-16 04:01:59,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092977289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:59,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:59,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:01:59,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540147485] [2023-12-16 04:01:59,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:59,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:01:59,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:59,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:01:59,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:01:59,589 INFO L87 Difference]: Start difference. First operand 710 states and 1129 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:02:00,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:02:00,259 INFO L93 Difference]: Finished difference Result 2054 states and 3220 transitions. [2023-12-16 04:02:00,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:02:00,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 371 [2023-12-16 04:02:00,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:02:00,268 INFO L225 Difference]: With dead ends: 2054 [2023-12-16 04:02:00,269 INFO L226 Difference]: Without dead ends: 1345 [2023-12-16 04:02:00,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:02:00,273 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 665 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:02:00,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1744 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:02:00,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2023-12-16 04:02:00,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1323. [2023-12-16 04:02:00,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 901 states have (on average 1.4039955604883463) internal successors, (1265), 912 states have internal predecessors, (1265), 394 states have call successors, (394), 27 states have call predecessors, (394), 27 states have return successors, (394), 383 states have call predecessors, (394), 394 states have call successors, (394) [2023-12-16 04:02:00,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 2053 transitions. [2023-12-16 04:02:00,386 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 2053 transitions. Word has length 371 [2023-12-16 04:02:00,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:02:00,387 INFO L495 AbstractCegarLoop]: Abstraction has 1323 states and 2053 transitions. [2023-12-16 04:02:00,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:02:00,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 2053 transitions. [2023-12-16 04:02:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-12-16 04:02:00,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:02:00,391 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:02:00,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 04:02:00,604 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 [2023-12-16 04:02:00,605 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:02:00,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:02:00,605 INFO L85 PathProgramCache]: Analyzing trace with hash -474438306, now seen corresponding path program 1 times [2023-12-16 04:02:00,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:02:00,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672016557] [2023-12-16 04:02:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:00,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:02:00,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:02:00,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758956390] [2023-12-16 04:02:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:00,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:02:00,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:02:00,661 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) [2023-12-16 04:02:00,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 04:02:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:02:00,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 04:02:00,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:02:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 04:02:00,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:02:00,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:02:00,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672016557] [2023-12-16 04:02:00,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:02:00,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758956390] [2023-12-16 04:02:00,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758956390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:02:00,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:02:00,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:02:00,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615479550] [2023-12-16 04:02:00,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:02:00,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:02:00,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:02:00,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:02:00,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:02:00,980 INFO L87 Difference]: Start difference. First operand 1323 states and 2053 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:02:01,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:02:01,246 INFO L93 Difference]: Finished difference Result 3370 states and 5203 transitions. [2023-12-16 04:02:01,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:02:01,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 371 [2023-12-16 04:02:01,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:02:01,258 INFO L225 Difference]: With dead ends: 3370 [2023-12-16 04:02:01,258 INFO L226 Difference]: Without dead ends: 2074 [2023-12-16 04:02:01,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:02:01,264 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 489 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:02:01,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 935 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:02:01,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2023-12-16 04:02:01,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1923. [2023-12-16 04:02:01,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1250 states have (on average 1.3376) internal successors, (1672), 1263 states have internal predecessors, (1672), 630 states have call successors, (630), 42 states have call predecessors, (630), 42 states have return successors, (630), 617 states have call predecessors, (630), 630 states have call successors, (630) [2023-12-16 04:02:01,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2932 transitions. [2023-12-16 04:02:01,458 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2932 transitions. Word has length 371 [2023-12-16 04:02:01,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:02:01,459 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 2932 transitions. [2023-12-16 04:02:01,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:02:01,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2932 transitions. [2023-12-16 04:02:01,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-12-16 04:02:01,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:02:01,462 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:02:01,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 04:02:01,671 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 [2023-12-16 04:02:01,672 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:02:01,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:02:01,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1506721778, now seen corresponding path program 1 times [2023-12-16 04:02:01,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:02:01,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777194703] [2023-12-16 04:02:01,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:01,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:02:01,712 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:02:01,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735022707] [2023-12-16 04:02:01,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:01,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:02:01,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:02:01,714 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) [2023-12-16 04:02:01,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 04:02:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:02:02,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:02:02,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:02:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 2550 proven. 132 refuted. 0 times theorem prover too weak. 4162 trivial. 0 not checked. [2023-12-16 04:02:02,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:02:02,608 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 42 proven. 132 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2023-12-16 04:02:02,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:02:02,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777194703] [2023-12-16 04:02:02,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:02:02,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735022707] [2023-12-16 04:02:02,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735022707] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:02:02,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:02:02,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 04:02:02,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481341593] [2023-12-16 04:02:02,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:02:02,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:02:02,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:02:02,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:02:02,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:02:02,612 INFO L87 Difference]: Start difference. First operand 1923 states and 2932 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2023-12-16 04:02:03,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:02:03,118 INFO L93 Difference]: Finished difference Result 3194 states and 4842 transitions. [2023-12-16 04:02:03,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:02:03,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 371 [2023-12-16 04:02:03,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:02:03,127 INFO L225 Difference]: With dead ends: 3194 [2023-12-16 04:02:03,127 INFO L226 Difference]: Without dead ends: 1302 [2023-12-16 04:02:03,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 734 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:02:03,134 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 229 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:02:03,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 492 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:02:03,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2023-12-16 04:02:03,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 735. [2023-12-16 04:02:03,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 466 states have (on average 1.3025751072961373) internal successors, (607), 467 states have internal predecessors, (607), 250 states have call successors, (250), 18 states have call predecessors, (250), 18 states have return successors, (250), 249 states have call predecessors, (250), 250 states have call successors, (250) [2023-12-16 04:02:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1107 transitions. [2023-12-16 04:02:03,224 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1107 transitions. Word has length 371 [2023-12-16 04:02:03,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:02:03,224 INFO L495 AbstractCegarLoop]: Abstraction has 735 states and 1107 transitions. [2023-12-16 04:02:03,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2023-12-16 04:02:03,225 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1107 transitions. [2023-12-16 04:02:03,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2023-12-16 04:02:03,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:02:03,227 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:02:03,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 04:02:03,436 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 [2023-12-16 04:02:03,436 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:02:03,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:02:03,437 INFO L85 PathProgramCache]: Analyzing trace with hash -920366714, now seen corresponding path program 1 times [2023-12-16 04:02:03,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:02:03,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412674535] [2023-12-16 04:02:03,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:03,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:02:03,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:02:03,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1882604068] [2023-12-16 04:02:03,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:03,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:02:03,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:02:03,491 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) [2023-12-16 04:02:03,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 04:02:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:02:03,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:02:03,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:02:04,077 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 3270 proven. 108 refuted. 0 times theorem prover too weak. 3466 trivial. 0 not checked. [2023-12-16 04:02:04,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:02:04,355 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 66 proven. 108 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2023-12-16 04:02:04,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:02:04,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412674535] [2023-12-16 04:02:04,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:02:04,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882604068] [2023-12-16 04:02:04,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882604068] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:02:04,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:02:04,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 04:02:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623189139] [2023-12-16 04:02:04,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:02:04,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:02:04,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:02:04,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:02:04,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:02:04,359 INFO L87 Difference]: Start difference. First operand 735 states and 1107 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-12-16 04:02:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:02:04,714 INFO L93 Difference]: Finished difference Result 1463 states and 2187 transitions. [2023-12-16 04:02:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:02:04,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 372 [2023-12-16 04:02:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:02:04,719 INFO L225 Difference]: With dead ends: 1463 [2023-12-16 04:02:04,719 INFO L226 Difference]: Without dead ends: 733 [2023-12-16 04:02:04,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 736 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:02:04,723 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 120 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:02:04,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 439 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:02:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-12-16 04:02:04,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 715. [2023-12-16 04:02:04,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 442 states have (on average 1.2692307692307692) internal successors, (561), 443 states have internal predecessors, (561), 250 states have call successors, (250), 22 states have call predecessors, (250), 22 states have return successors, (250), 249 states have call predecessors, (250), 250 states have call successors, (250) [2023-12-16 04:02:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1061 transitions. [2023-12-16 04:02:04,796 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1061 transitions. Word has length 372 [2023-12-16 04:02:04,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:02:04,796 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 1061 transitions. [2023-12-16 04:02:04,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-12-16 04:02:04,797 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1061 transitions. [2023-12-16 04:02:04,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-16 04:02:04,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:02:04,799 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:02:04,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 04:02:05,008 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 [2023-12-16 04:02:05,009 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:02:05,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:02:05,010 INFO L85 PathProgramCache]: Analyzing trace with hash 649003054, now seen corresponding path program 1 times [2023-12-16 04:02:05,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:02:05,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843574014] [2023-12-16 04:02:05,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:05,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:02:05,044 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:02:05,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159459793] [2023-12-16 04:02:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:05,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:02:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:02:05,046 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) [2023-12-16 04:02:05,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 04:02:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:02:05,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 04:02:05,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:02:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 04:02:05,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:02:05,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:02:05,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843574014] [2023-12-16 04:02:05,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:02:05,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159459793] [2023-12-16 04:02:05,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159459793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:02:05,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:02:05,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:02:05,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146017459] [2023-12-16 04:02:05,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:02:05,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:02:05,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:02:05,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:02:05,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:02:05,535 INFO L87 Difference]: Start difference. First operand 715 states and 1061 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:02:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:02:06,115 INFO L93 Difference]: Finished difference Result 2137 states and 3169 transitions. [2023-12-16 04:02:06,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 04:02:06,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 374 [2023-12-16 04:02:06,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:02:06,123 INFO L225 Difference]: With dead ends: 2137 [2023-12-16 04:02:06,123 INFO L226 Difference]: Without dead ends: 1453 [2023-12-16 04:02:06,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2023-12-16 04:02:06,127 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 955 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:02:06,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 1004 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:02:06,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2023-12-16 04:02:06,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1431. [2023-12-16 04:02:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 952 states have (on average 1.2983193277310925) internal successors, (1236), 959 states have internal predecessors, (1236), 440 states have call successors, (440), 38 states have call predecessors, (440), 38 states have return successors, (440), 433 states have call predecessors, (440), 440 states have call successors, (440) [2023-12-16 04:02:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2116 transitions. [2023-12-16 04:02:06,261 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2116 transitions. Word has length 374 [2023-12-16 04:02:06,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:02:06,261 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 2116 transitions. [2023-12-16 04:02:06,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 04:02:06,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2116 transitions. [2023-12-16 04:02:06,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-16 04:02:06,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:02:06,264 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:02:06,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 04:02:06,472 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 [2023-12-16 04:02:06,473 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:02:06,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:02:06,473 INFO L85 PathProgramCache]: Analyzing trace with hash -383280418, now seen corresponding path program 1 times [2023-12-16 04:02:06,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:02:06,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515237340] [2023-12-16 04:02:06,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:06,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:02:06,510 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:02:06,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598011201] [2023-12-16 04:02:06,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:06,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:02:06,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:02:06,511 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) [2023-12-16 04:02:06,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-16 04:02:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:02:06,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-16 04:02:06,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:02:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 3611 proven. 804 refuted. 0 times theorem prover too weak. 2429 trivial. 0 not checked. [2023-12-16 04:02:11,495 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:02:50,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:02:50,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515237340] [2023-12-16 04:02:50,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:02:50,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598011201] [2023-12-16 04:02:50,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598011201] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:02:50,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:02:50,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2023-12-16 04:02:50,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135633147] [2023-12-16 04:02:50,856 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-16 04:02:50,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-16 04:02:50,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:02:50,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-16 04:02:50,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 04:02:50,858 INFO L87 Difference]: Start difference. First operand 1431 states and 2116 transitions. Second operand has 23 states, 23 states have (on average 4.739130434782608) internal successors, (109), 21 states have internal predecessors, (109), 7 states have call successors, (59), 7 states have call predecessors, (59), 10 states have return successors, (59), 7 states have call predecessors, (59), 7 states have call successors, (59) [2023-12-16 04:02:52,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:02:52,610 INFO L93 Difference]: Finished difference Result 4456 states and 6379 transitions. [2023-12-16 04:02:52,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-16 04:02:52,611 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.739130434782608) internal successors, (109), 21 states have internal predecessors, (109), 7 states have call successors, (59), 7 states have call predecessors, (59), 10 states have return successors, (59), 7 states have call predecessors, (59), 7 states have call successors, (59) Word has length 374 [2023-12-16 04:02:52,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:02:52,624 INFO L225 Difference]: With dead ends: 4456 [2023-12-16 04:02:52,624 INFO L226 Difference]: Without dead ends: 3056 [2023-12-16 04:02:52,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=727, Invalid=2029, Unknown=0, NotChecked=0, Total=2756 [2023-12-16 04:02:52,631 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 194 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 04:02:52,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1126 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 04:02:52,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2023-12-16 04:02:52,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 2966. [2023-12-16 04:02:52,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 1981 states have (on average 1.2584553255931348) internal successors, (2493), 1992 states have internal predecessors, (2493), 840 states have call successors, (840), 144 states have call predecessors, (840), 144 states have return successors, (840), 829 states have call predecessors, (840), 840 states have call successors, (840) [2023-12-16 04:02:52,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 4173 transitions. [2023-12-16 04:02:52,922 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 4173 transitions. Word has length 374 [2023-12-16 04:02:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:02:52,923 INFO L495 AbstractCegarLoop]: Abstraction has 2966 states and 4173 transitions. [2023-12-16 04:02:52,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.739130434782608) internal successors, (109), 21 states have internal predecessors, (109), 7 states have call successors, (59), 7 states have call predecessors, (59), 10 states have return successors, (59), 7 states have call predecessors, (59), 7 states have call successors, (59) [2023-12-16 04:02:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 4173 transitions. [2023-12-16 04:02:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-16 04:02:52,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:02:52,926 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:02:52,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-16 04:02:53,135 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 [2023-12-16 04:02:53,135 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:02:53,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:02:53,136 INFO L85 PathProgramCache]: Analyzing trace with hash -497538982, now seen corresponding path program 1 times [2023-12-16 04:02:53,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:02:53,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612633539] [2023-12-16 04:02:53,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:53,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:02:53,177 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:02:53,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509716412] [2023-12-16 04:02:53,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:02:53,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:02:53,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:02:53,179 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) [2023-12-16 04:02:53,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-16 04:02:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:02:53,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:02:53,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:02:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 04:02:53,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:02:53,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:02:53,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612633539] [2023-12-16 04:02:53,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:02:53,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509716412] [2023-12-16 04:02:53,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509716412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:02:53,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:02:53,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:02:53,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373769924] [2023-12-16 04:02:53,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:02:53,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:02:53,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:02:53,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:02:53,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:02:53,764 INFO L87 Difference]: Start difference. First operand 2966 states and 4173 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Received shutdown request... [2023-12-16 04:02:53,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 04:02:53,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:02:53,867 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 260 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:02:53,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 471 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:02:53,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:02:53,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-16 04:02:53,883 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:02:53,886 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 [2023-12-16 04:02:54,069 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 [2023-12-16 04:02:54,070 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (2966states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (797 states constructed, input type IntersectNwa). [2023-12-16 04:02:54,074 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:02:54,076 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:02:54,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:02:54 BoogieIcfgContainer [2023-12-16 04:02:54,077 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:02:54,078 INFO L158 Benchmark]: Toolchain (without parser) took 61898.03ms. Allocated memory was 345.0MB in the beginning and 843.1MB in the end (delta: 498.1MB). Free memory was 290.3MB in the beginning and 770.0MB in the end (delta: -479.7MB). Peak memory consumption was 509.1MB. Max. memory is 8.0GB. [2023-12-16 04:02:54,078 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 199.2MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:02:54,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.30ms. Allocated memory is still 345.0MB. Free memory was 290.3MB in the beginning and 265.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-16 04:02:54,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.12ms. Allocated memory is still 345.0MB. Free memory was 265.1MB in the beginning and 256.1MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 04:02:54,079 INFO L158 Benchmark]: Boogie Preprocessor took 121.61ms. Allocated memory is still 345.0MB. Free memory was 256.1MB in the beginning and 234.7MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-16 04:02:54,079 INFO L158 Benchmark]: RCFGBuilder took 988.74ms. Allocated memory is still 345.0MB. Free memory was 234.7MB in the beginning and 256.2MB in the end (delta: -21.5MB). Peak memory consumption was 7.2MB. Max. memory is 8.0GB. [2023-12-16 04:02:54,079 INFO L158 Benchmark]: TraceAbstraction took 60200.41ms. Allocated memory was 345.0MB in the beginning and 843.1MB in the end (delta: 498.1MB). Free memory was 255.1MB in the beginning and 770.0MB in the end (delta: -514.9MB). Peak memory consumption was 473.6MB. Max. memory is 8.0GB. [2023-12-16 04:02:54,080 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 199.2MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 481.30ms. Allocated memory is still 345.0MB. Free memory was 290.3MB in the beginning and 265.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 98.12ms. Allocated memory is still 345.0MB. Free memory was 265.1MB in the beginning and 256.1MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 121.61ms. Allocated memory is still 345.0MB. Free memory was 256.1MB in the beginning and 234.7MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * RCFGBuilder took 988.74ms. Allocated memory is still 345.0MB. Free memory was 234.7MB in the beginning and 256.2MB in the end (delta: -21.5MB). Peak memory consumption was 7.2MB. Max. memory is 8.0GB. * TraceAbstraction took 60200.41ms. Allocated memory was 345.0MB in the beginning and 843.1MB in the end (delta: 498.1MB). Free memory was 255.1MB in the beginning and 770.0MB in the end (delta: -514.9MB). Peak memory consumption was 473.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was constructing difference of abstraction (2966states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (797 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 163 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.1s, OverallIterations: 12, TraceHistogramMax: 59, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3861 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3821 mSDsluCounter, 9426 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5856 mSDsCounter, 518 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2921 IncrementalHoareTripleChecker+Invalid, 3439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 518 mSolverCounterUnsat, 3570 mSDtfsCounter, 2921 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5574 GetRequests, 5466 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2966occurred in iteration=11, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1734 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 46.8s InterpolantComputationTime, 4822 NumberOfCodeBlocks, 4822 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 5182 ConstructedInterpolants, 2 QuantifiedInterpolants, 19964 SizeOfPredicates, 38 NumberOfNonLiveVariables, 10385 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 14 InterpolantComputations, 9 PerfectInterpolantSequences, 94532/95816 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