/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_amount500_file-58.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 00:57:25,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 00:57:25,868 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 00:57:25,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 00:57:25,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 00:57:25,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 00:57:25,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 00:57:25,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 00:57:25,903 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 00:57:25,906 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 00:57:25,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 00:57:25,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 00:57:25,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 00:57:25,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 00:57:25,909 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 00:57:25,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 00:57:25,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 00:57:25,909 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 00:57:25,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 00:57:25,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 00:57:25,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 00:57:25,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 00:57:25,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 00:57:25,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 00:57:25,912 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 00:57:25,912 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 00:57:25,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 00:57:25,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 00:57:25,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 00:57:25,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 00:57:25,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 00:57:25,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 00:57:25,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 00:57:25,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 00:57:25,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 00:57:25,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 00:57:25,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 00:57:25,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 00:57:25,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 00:57:25,915 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 00:57:25,916 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 00:57:25,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 00:57:25,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 00:57:25,916 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 00:57:26,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 00:57:26,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 00:57:26,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 00:57:26,173 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 00:57:26,174 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 00:57:26,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-58.i [2023-12-21 00:57:27,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 00:57:27,711 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 00:57:27,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-58.i [2023-12-21 00:57:27,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec216f71/d54ea4d5b89c4670b342fb5741e3f8ab/FLAG2b2c20ffb [2023-12-21 00:57:27,739 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec216f71/d54ea4d5b89c4670b342fb5741e3f8ab [2023-12-21 00:57:27,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 00:57:27,742 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 00:57:27,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 00:57:27,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 00:57:27,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 00:57:27,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:57:27" (1/1) ... [2023-12-21 00:57:27,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3520f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:27, skipping insertion in model container [2023-12-21 00:57:27,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:57:27" (1/1) ... [2023-12-21 00:57:27,810 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 00:57:27,927 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_amount500_file-58.i[916,929] [2023-12-21 00:57:28,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 00:57:28,168 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 00:57:28,178 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_amount500_file-58.i[916,929] [2023-12-21 00:57:28,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 00:57:28,289 INFO L206 MainTranslator]: Completed translation [2023-12-21 00:57:28,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28 WrapperNode [2023-12-21 00:57:28,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 00:57:28,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 00:57:28,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 00:57:28,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 00:57:28,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,424 INFO L138 Inliner]: procedures = 26, calls = 99, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 642 [2023-12-21 00:57:28,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 00:57:28,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 00:57:28,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 00:57:28,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 00:57:28,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,454 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,553 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]. [2023-12-21 00:57:28,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 00:57:28,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 00:57:28,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 00:57:28,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 00:57:28,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (1/1) ... [2023-12-21 00:57:28,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 00:57:28,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:28,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 00:57:28,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 00:57:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 00:57:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 00:57:28,706 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 00:57:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 00:57:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 00:57:28,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 00:57:28,860 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 00:57:28,862 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 00:57:29,876 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 00:57:29,996 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 00:57:29,996 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 00:57:29,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:57:29 BoogieIcfgContainer [2023-12-21 00:57:29,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 00:57:29,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 00:57:29,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 00:57:30,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 00:57:30,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:57:27" (1/3) ... [2023-12-21 00:57:30,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6801d056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:57:30, skipping insertion in model container [2023-12-21 00:57:30,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:57:28" (2/3) ... [2023-12-21 00:57:30,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6801d056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:57:30, skipping insertion in model container [2023-12-21 00:57:30,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:57:29" (3/3) ... [2023-12-21 00:57:30,004 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-58.i [2023-12-21 00:57:30,020 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 00:57:30,020 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 00:57:30,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 00:57:30,086 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;@4b48128, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 00:57:30,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 00:57:30,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 170 states have (on average 1.5470588235294118) internal successors, (263), 171 states have internal predecessors, (263), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-21 00:57:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2023-12-21 00:57:30,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:30,122 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:30,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:30,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:30,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1411340381, now seen corresponding path program 1 times [2023-12-21 00:57:30,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:30,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028605056] [2023-12-21 00:57:30,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:30,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:30,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:30,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028605056] [2023-12-21 00:57:30,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-21 00:57:30,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949107904] [2023-12-21 00:57:30,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:30,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:30,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:30,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:57:30,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 00:57:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:30,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 00:57:30,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:31,074 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 14450 trivial. 0 not checked. [2023-12-21 00:57:31,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:31,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949107904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:31,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:31,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 00:57:31,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817151904] [2023-12-21 00:57:31,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:31,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 00:57:31,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:31,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 00:57:31,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 00:57:31,118 INFO L87 Difference]: Start difference. First operand has 259 states, 170 states have (on average 1.5470588235294118) internal successors, (263), 171 states have internal predecessors, (263), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-21 00:57:31,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:31,235 INFO L93 Difference]: Finished difference Result 515 states and 954 transitions. [2023-12-21 00:57:31,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 00:57:31,244 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) Word has length 555 [2023-12-21 00:57:31,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:31,252 INFO L225 Difference]: With dead ends: 515 [2023-12-21 00:57:31,253 INFO L226 Difference]: Without dead ends: 257 [2023-12-21 00:57:31,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 00:57:31,270 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:31,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 427 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 00:57:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-12-21 00:57:31,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2023-12-21 00:57:31,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 169 states have (on average 1.5266272189349113) internal successors, (258), 169 states have internal predecessors, (258), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-21 00:57:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 430 transitions. [2023-12-21 00:57:31,339 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 430 transitions. Word has length 555 [2023-12-21 00:57:31,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:31,340 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 430 transitions. [2023-12-21 00:57:31,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-21 00:57:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 430 transitions. [2023-12-21 00:57:31,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2023-12-21 00:57:31,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:31,353 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:31,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:31,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-21 00:57:31,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:31,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:31,564 INFO L85 PathProgramCache]: Analyzing trace with hash 893113605, now seen corresponding path program 1 times [2023-12-21 00:57:31,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:31,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865640826] [2023-12-21 00:57:31,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:31,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:31,713 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:31,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841483201] [2023-12-21 00:57:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:31,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:31,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:31,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:57:31,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 00:57:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:32,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 00:57:32,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:32,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:32,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:32,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865640826] [2023-12-21 00:57:32,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:32,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841483201] [2023-12-21 00:57:32,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841483201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:32,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:32,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 00:57:32,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448779424] [2023-12-21 00:57:32,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:32,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 00:57:32,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:32,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 00:57:32,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 00:57:32,877 INFO L87 Difference]: Start difference. First operand 257 states and 430 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:33,415 INFO L93 Difference]: Finished difference Result 770 states and 1289 transitions. [2023-12-21 00:57:33,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 00:57:33,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 555 [2023-12-21 00:57:33,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:33,425 INFO L225 Difference]: With dead ends: 770 [2023-12-21 00:57:33,426 INFO L226 Difference]: Without dead ends: 514 [2023-12-21 00:57:33,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 00:57:33,428 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 375 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:33,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1523 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 00:57:33,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-12-21 00:57:33,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 499. [2023-12-21 00:57:33,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 324 states have (on average 1.5246913580246915) internal successors, (494), 324 states have internal predecessors, (494), 172 states have call successors, (172), 2 states have call predecessors, (172), 2 states have return successors, (172), 172 states have call predecessors, (172), 172 states have call successors, (172) [2023-12-21 00:57:33,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 838 transitions. [2023-12-21 00:57:33,533 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 838 transitions. Word has length 555 [2023-12-21 00:57:33,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:33,536 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 838 transitions. [2023-12-21 00:57:33,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:33,537 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 838 transitions. [2023-12-21 00:57:33,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2023-12-21 00:57:33,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:33,544 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:33,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:33,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-21 00:57:33,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:33,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:33,754 INFO L85 PathProgramCache]: Analyzing trace with hash 500086595, now seen corresponding path program 1 times [2023-12-21 00:57:33,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:33,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219125112] [2023-12-21 00:57:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:33,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:33,856 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:33,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [271740359] [2023-12-21 00:57:33,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:33,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:33,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:33,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:57:33,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 00:57:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:34,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 00:57:34,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:34,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:34,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:34,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219125112] [2023-12-21 00:57:34,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:34,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271740359] [2023-12-21 00:57:34,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271740359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:34,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:34,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 00:57:34,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38989349] [2023-12-21 00:57:34,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:34,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 00:57:34,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:34,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 00:57:34,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 00:57:34,315 INFO L87 Difference]: Start difference. First operand 499 states and 838 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:34,441 INFO L93 Difference]: Finished difference Result 1107 states and 1877 transitions. [2023-12-21 00:57:34,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 00:57:34,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 555 [2023-12-21 00:57:34,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:34,449 INFO L225 Difference]: With dead ends: 1107 [2023-12-21 00:57:34,449 INFO L226 Difference]: Without dead ends: 759 [2023-12-21 00:57:34,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 00:57:34,451 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 243 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:34,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1044 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 00:57:34,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2023-12-21 00:57:34,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 756. [2023-12-21 00:57:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 556 states have (on average 1.5863309352517985) internal successors, (882), 557 states have internal predecessors, (882), 196 states have call successors, (196), 3 states have call predecessors, (196), 3 states have return successors, (196), 195 states have call predecessors, (196), 196 states have call successors, (196) [2023-12-21 00:57:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1274 transitions. [2023-12-21 00:57:34,524 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1274 transitions. Word has length 555 [2023-12-21 00:57:34,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:34,526 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 1274 transitions. [2023-12-21 00:57:34,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1274 transitions. [2023-12-21 00:57:34,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2023-12-21 00:57:34,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:34,534 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:34,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:34,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:34,744 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:34,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:34,745 INFO L85 PathProgramCache]: Analyzing trace with hash 722059327, now seen corresponding path program 1 times [2023-12-21 00:57:34,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:34,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693670776] [2023-12-21 00:57:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:34,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:34,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:34,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265798620] [2023-12-21 00:57:34,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:34,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:34,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:34,827 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:57:34,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 00:57:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:35,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 00:57:35,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:35,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:35,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:35,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693670776] [2023-12-21 00:57:35,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:35,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265798620] [2023-12-21 00:57:35,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265798620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:35,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:35,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 00:57:35,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651862191] [2023-12-21 00:57:35,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:35,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 00:57:35,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 00:57:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 00:57:35,234 INFO L87 Difference]: Start difference. First operand 756 states and 1274 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:35,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:35,368 INFO L93 Difference]: Finished difference Result 1725 states and 2912 transitions. [2023-12-21 00:57:35,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 00:57:35,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 555 [2023-12-21 00:57:35,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:35,376 INFO L225 Difference]: With dead ends: 1725 [2023-12-21 00:57:35,377 INFO L226 Difference]: Without dead ends: 1220 [2023-12-21 00:57:35,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 00:57:35,379 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 227 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:35,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 973 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 00:57:35,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2023-12-21 00:57:35,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1216. [2023-12-21 00:57:35,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 974 states have (on average 1.6078028747433264) internal successors, (1566), 977 states have internal predecessors, (1566), 236 states have call successors, (236), 5 states have call predecessors, (236), 5 states have return successors, (236), 233 states have call predecessors, (236), 236 states have call successors, (236) [2023-12-21 00:57:35,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 2038 transitions. [2023-12-21 00:57:35,447 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 2038 transitions. Word has length 555 [2023-12-21 00:57:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:35,448 INFO L495 AbstractCegarLoop]: Abstraction has 1216 states and 2038 transitions. [2023-12-21 00:57:35,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:35,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 2038 transitions. [2023-12-21 00:57:35,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-12-21 00:57:35,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:35,453 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:35,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-21 00:57:35,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:35,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:35,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash -198463612, now seen corresponding path program 1 times [2023-12-21 00:57:35,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:35,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302961738] [2023-12-21 00:57:35,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:35,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:35,725 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:35,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724478677] [2023-12-21 00:57:35,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:35,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:35,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:35,727 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) [2023-12-21 00:57:35,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 00:57:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:36,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 00:57:36,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:36,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:36,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:36,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302961738] [2023-12-21 00:57:36,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:36,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724478677] [2023-12-21 00:57:36,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724478677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:36,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:36,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 00:57:36,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838272844] [2023-12-21 00:57:36,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:36,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 00:57:36,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:36,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 00:57:36,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 00:57:36,147 INFO L87 Difference]: Start difference. First operand 1216 states and 2038 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:36,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:36,528 INFO L93 Difference]: Finished difference Result 3164 states and 5308 transitions. [2023-12-21 00:57:36,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 00:57:36,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 556 [2023-12-21 00:57:36,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:36,538 INFO L225 Difference]: With dead ends: 3164 [2023-12-21 00:57:36,539 INFO L226 Difference]: Without dead ends: 2192 [2023-12-21 00:57:36,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 00:57:36,542 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 716 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:36,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 1434 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 00:57:36,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2023-12-21 00:57:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 1764. [2023-12-21 00:57:36,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1522 states have (on average 1.6438896189224705) internal successors, (2502), 1525 states have internal predecessors, (2502), 236 states have call successors, (236), 5 states have call predecessors, (236), 5 states have return successors, (236), 233 states have call predecessors, (236), 236 states have call successors, (236) [2023-12-21 00:57:36,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2974 transitions. [2023-12-21 00:57:36,661 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2974 transitions. Word has length 556 [2023-12-21 00:57:36,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:36,662 INFO L495 AbstractCegarLoop]: Abstraction has 1764 states and 2974 transitions. [2023-12-21 00:57:36,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2974 transitions. [2023-12-21 00:57:36,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-12-21 00:57:36,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:36,668 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:36,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:36,877 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 [2023-12-21 00:57:36,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:36,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:36,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1783149048, now seen corresponding path program 1 times [2023-12-21 00:57:36,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:36,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646975087] [2023-12-21 00:57:36,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:36,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:36,939 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:36,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32295039] [2023-12-21 00:57:36,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:36,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:36,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:36,941 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) [2023-12-21 00:57:36,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 00:57:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:37,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 00:57:37,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 5325 proven. 195 refuted. 0 times theorem prover too weak. 9100 trivial. 0 not checked. [2023-12-21 00:57:37,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:57:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 60 proven. 195 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-21 00:57:38,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:38,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646975087] [2023-12-21 00:57:38,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:38,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32295039] [2023-12-21 00:57:38,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32295039] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:57:38,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:57:38,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 00:57:38,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393838372] [2023-12-21 00:57:38,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:57:38,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 00:57:38,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:38,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 00:57:38,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 00:57:38,355 INFO L87 Difference]: Start difference. First operand 1764 states and 2974 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 2 states have call successors, (151), 2 states have call predecessors, (151), 4 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) [2023-12-21 00:57:38,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:38,919 INFO L93 Difference]: Finished difference Result 2322 states and 3898 transitions. [2023-12-21 00:57:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 00:57:38,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 2 states have call successors, (151), 2 states have call predecessors, (151), 4 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) Word has length 556 [2023-12-21 00:57:38,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:38,928 INFO L225 Difference]: With dead ends: 2322 [2023-12-21 00:57:38,928 INFO L226 Difference]: Without dead ends: 1028 [2023-12-21 00:57:38,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1104 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-21 00:57:38,932 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 353 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:38,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 781 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 00:57:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2023-12-21 00:57:38,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1022. [2023-12-21 00:57:38,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 819 states have (on average 1.5763125763125763) internal successors, (1291), 820 states have internal predecessors, (1291), 196 states have call successors, (196), 6 states have call predecessors, (196), 6 states have return successors, (196), 195 states have call predecessors, (196), 196 states have call successors, (196) [2023-12-21 00:57:38,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1683 transitions. [2023-12-21 00:57:38,995 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1683 transitions. Word has length 556 [2023-12-21 00:57:38,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:38,996 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 1683 transitions. [2023-12-21 00:57:38,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 2 states have call successors, (151), 2 states have call predecessors, (151), 4 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) [2023-12-21 00:57:38,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1683 transitions. [2023-12-21 00:57:39,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-12-21 00:57:39,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:39,001 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:39,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:39,210 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 [2023-12-21 00:57:39,210 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:39,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:39,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1015062348, now seen corresponding path program 1 times [2023-12-21 00:57:39,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:39,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465666429] [2023-12-21 00:57:39,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:39,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:39,274 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:39,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185268796] [2023-12-21 00:57:39,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:39,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:39,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:39,276 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) [2023-12-21 00:57:39,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 00:57:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:39,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 00:57:39,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:39,734 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:39,735 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:39,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:39,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465666429] [2023-12-21 00:57:39,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:39,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185268796] [2023-12-21 00:57:39,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185268796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:39,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:39,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 00:57:39,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191383178] [2023-12-21 00:57:39,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:39,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 00:57:39,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:39,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 00:57:39,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 00:57:39,737 INFO L87 Difference]: Start difference. First operand 1022 states and 1683 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:39,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:39,943 INFO L93 Difference]: Finished difference Result 1958 states and 3214 transitions. [2023-12-21 00:57:39,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 00:57:39,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 556 [2023-12-21 00:57:39,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:39,950 INFO L225 Difference]: With dead ends: 1958 [2023-12-21 00:57:39,950 INFO L226 Difference]: Without dead ends: 1410 [2023-12-21 00:57:39,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 00:57:39,952 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 297 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:39,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1496 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 00:57:39,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2023-12-21 00:57:40,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1406. [2023-12-21 00:57:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1154 states have (on average 1.5875216637781628) internal successors, (1832), 1157 states have internal predecessors, (1832), 240 states have call successors, (240), 11 states have call predecessors, (240), 11 states have return successors, (240), 237 states have call predecessors, (240), 240 states have call successors, (240) [2023-12-21 00:57:40,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 2312 transitions. [2023-12-21 00:57:40,021 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 2312 transitions. Word has length 556 [2023-12-21 00:57:40,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:40,022 INFO L495 AbstractCegarLoop]: Abstraction has 1406 states and 2312 transitions. [2023-12-21 00:57:40,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:40,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 2312 transitions. [2023-12-21 00:57:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2023-12-21 00:57:40,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:40,027 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:40,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:40,236 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 [2023-12-21 00:57:40,237 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:40,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:40,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1890913928, now seen corresponding path program 1 times [2023-12-21 00:57:40,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:40,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007205806] [2023-12-21 00:57:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:40,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:40,314 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:40,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404883372] [2023-12-21 00:57:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:40,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:40,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:40,319 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) [2023-12-21 00:57:40,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 00:57:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:40,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 00:57:40,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 6403 proven. 174 refuted. 0 times theorem prover too weak. 8043 trivial. 0 not checked. [2023-12-21 00:57:41,166 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:57:41,550 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 81 proven. 174 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-21 00:57:41,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:41,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007205806] [2023-12-21 00:57:41,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:41,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404883372] [2023-12-21 00:57:41,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404883372] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:57:41,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:57:41,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 00:57:41,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894116267] [2023-12-21 00:57:41,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:57:41,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 00:57:41,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:41,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 00:57:41,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 00:57:41,554 INFO L87 Difference]: Start difference. First operand 1406 states and 2312 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 2 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (145), 2 states have call predecessors, (145), 2 states have call successors, (145) [2023-12-21 00:57:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:42,050 INFO L93 Difference]: Finished difference Result 2648 states and 4349 transitions. [2023-12-21 00:57:42,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 00:57:42,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 2 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (145), 2 states have call predecessors, (145), 2 states have call successors, (145) Word has length 557 [2023-12-21 00:57:42,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:42,059 INFO L225 Difference]: With dead ends: 2648 [2023-12-21 00:57:42,060 INFO L226 Difference]: Without dead ends: 1430 [2023-12-21 00:57:42,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1116 GetRequests, 1106 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-21 00:57:42,063 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 401 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:42,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 774 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 00:57:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2023-12-21 00:57:42,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1414. [2023-12-21 00:57:42,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1160 states have (on average 1.553448275862069) internal successors, (1802), 1163 states have internal predecessors, (1802), 240 states have call successors, (240), 13 states have call predecessors, (240), 13 states have return successors, (240), 237 states have call predecessors, (240), 240 states have call successors, (240) [2023-12-21 00:57:42,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2282 transitions. [2023-12-21 00:57:42,138 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2282 transitions. Word has length 557 [2023-12-21 00:57:42,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:42,138 INFO L495 AbstractCegarLoop]: Abstraction has 1414 states and 2282 transitions. [2023-12-21 00:57:42,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 2 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (145), 2 states have call predecessors, (145), 2 states have call successors, (145) [2023-12-21 00:57:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2282 transitions. [2023-12-21 00:57:42,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2023-12-21 00:57:42,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:42,143 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:42,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:42,354 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 [2023-12-21 00:57:42,354 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:42,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:42,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1424144184, now seen corresponding path program 1 times [2023-12-21 00:57:42,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:42,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819554438] [2023-12-21 00:57:42,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:42,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:42,408 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:42,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787129956] [2023-12-21 00:57:42,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:42,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:42,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:42,410 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) [2023-12-21 00:57:42,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 00:57:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:42,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 00:57:42,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:42,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:42,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:42,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819554438] [2023-12-21 00:57:42,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:42,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787129956] [2023-12-21 00:57:42,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787129956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:42,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:42,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 00:57:42,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768617192] [2023-12-21 00:57:42,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:42,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 00:57:42,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:42,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 00:57:42,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 00:57:42,871 INFO L87 Difference]: Start difference. First operand 1414 states and 2282 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:44,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:44,099 INFO L93 Difference]: Finished difference Result 3282 states and 5246 transitions. [2023-12-21 00:57:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 00:57:44,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 557 [2023-12-21 00:57:44,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:44,112 INFO L225 Difference]: With dead ends: 3282 [2023-12-21 00:57:44,112 INFO L226 Difference]: Without dead ends: 2450 [2023-12-21 00:57:44,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 00:57:44,116 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 842 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:44,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2108 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 00:57:44,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2023-12-21 00:57:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 1542. [2023-12-21 00:57:44,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1288 states have (on average 1.5357142857142858) internal successors, (1978), 1291 states have internal predecessors, (1978), 240 states have call successors, (240), 13 states have call predecessors, (240), 13 states have return successors, (240), 237 states have call predecessors, (240), 240 states have call successors, (240) [2023-12-21 00:57:44,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2458 transitions. [2023-12-21 00:57:44,237 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2458 transitions. Word has length 557 [2023-12-21 00:57:44,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:44,238 INFO L495 AbstractCegarLoop]: Abstraction has 1542 states and 2458 transitions. [2023-12-21 00:57:44,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:44,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2458 transitions. [2023-12-21 00:57:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-21 00:57:44,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:44,243 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:44,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:44,452 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 [2023-12-21 00:57:44,453 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:44,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:44,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1422198031, now seen corresponding path program 1 times [2023-12-21 00:57:44,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:44,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645495919] [2023-12-21 00:57:44,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:44,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:44,506 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:44,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647441120] [2023-12-21 00:57:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:44,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:44,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:44,508 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) [2023-12-21 00:57:44,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 00:57:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:44,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 00:57:44,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:45,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:45,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:45,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645495919] [2023-12-21 00:57:45,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:45,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647441120] [2023-12-21 00:57:45,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647441120] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:45,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:45,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 00:57:45,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914966127] [2023-12-21 00:57:45,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:45,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 00:57:45,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:45,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 00:57:45,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 00:57:45,628 INFO L87 Difference]: Start difference. First operand 1542 states and 2458 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:46,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:46,684 INFO L93 Difference]: Finished difference Result 3589 states and 5688 transitions. [2023-12-21 00:57:46,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 00:57:46,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 558 [2023-12-21 00:57:46,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:46,695 INFO L225 Difference]: With dead ends: 3589 [2023-12-21 00:57:46,695 INFO L226 Difference]: Without dead ends: 2434 [2023-12-21 00:57:46,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-21 00:57:46,699 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 1007 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:46,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1679 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 00:57:46,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2023-12-21 00:57:46,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2075. [2023-12-21 00:57:46,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 1708 states have (on average 1.515222482435597) internal successors, (2588), 1712 states have internal predecessors, (2588), 348 states have call successors, (348), 18 states have call predecessors, (348), 18 states have return successors, (348), 344 states have call predecessors, (348), 348 states have call successors, (348) [2023-12-21 00:57:46,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 3284 transitions. [2023-12-21 00:57:46,903 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 3284 transitions. Word has length 558 [2023-12-21 00:57:46,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:46,904 INFO L495 AbstractCegarLoop]: Abstraction has 2075 states and 3284 transitions. [2023-12-21 00:57:46,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:46,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 3284 transitions. [2023-12-21 00:57:46,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-21 00:57:46,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:46,909 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:46,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:47,118 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 [2023-12-21 00:57:47,119 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:47,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:47,119 INFO L85 PathProgramCache]: Analyzing trace with hash 481383403, now seen corresponding path program 1 times [2023-12-21 00:57:47,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:47,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598517208] [2023-12-21 00:57:47,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:47,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:47,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:47,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261491970] [2023-12-21 00:57:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:47,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:47,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:47,196 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) [2023-12-21 00:57:47,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 00:57:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:47,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 00:57:47,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:47,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:47,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:47,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598517208] [2023-12-21 00:57:47,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:47,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261491970] [2023-12-21 00:57:47,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261491970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:47,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:47,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 00:57:47,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093668399] [2023-12-21 00:57:47,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:47,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 00:57:47,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:47,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 00:57:47,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 00:57:47,814 INFO L87 Difference]: Start difference. First operand 2075 states and 3284 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:48,872 INFO L93 Difference]: Finished difference Result 8622 states and 13521 transitions. [2023-12-21 00:57:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 00:57:48,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 558 [2023-12-21 00:57:48,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:48,912 INFO L225 Difference]: With dead ends: 8622 [2023-12-21 00:57:48,912 INFO L226 Difference]: Without dead ends: 7079 [2023-12-21 00:57:48,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-21 00:57:48,917 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 987 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:48,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 1838 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 00:57:48,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2023-12-21 00:57:49,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 4618. [2023-12-21 00:57:49,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4618 states, 4096 states have (on average 1.547119140625) internal successors, (6337), 4106 states have internal predecessors, (6337), 490 states have call successors, (490), 31 states have call predecessors, (490), 31 states have return successors, (490), 480 states have call predecessors, (490), 490 states have call successors, (490) [2023-12-21 00:57:49,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4618 states to 4618 states and 7317 transitions. [2023-12-21 00:57:49,256 INFO L78 Accepts]: Start accepts. Automaton has 4618 states and 7317 transitions. Word has length 558 [2023-12-21 00:57:49,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:49,257 INFO L495 AbstractCegarLoop]: Abstraction has 4618 states and 7317 transitions. [2023-12-21 00:57:49,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:49,257 INFO L276 IsEmpty]: Start isEmpty. Operand 4618 states and 7317 transitions. [2023-12-21 00:57:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-21 00:57:49,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:49,264 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:49,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:49,473 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 [2023-12-21 00:57:49,473 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:49,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:49,474 INFO L85 PathProgramCache]: Analyzing trace with hash -12225335, now seen corresponding path program 1 times [2023-12-21 00:57:49,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:49,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673586146] [2023-12-21 00:57:49,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:49,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:49,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:49,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738247878] [2023-12-21 00:57:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:49,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:49,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:49,537 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) [2023-12-21 00:57:49,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 00:57:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:49,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 00:57:49,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:50,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:50,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:50,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673586146] [2023-12-21 00:57:50,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:50,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738247878] [2023-12-21 00:57:50,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738247878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:50,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:50,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 00:57:50,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935365943] [2023-12-21 00:57:50,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:50,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 00:57:50,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:50,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 00:57:50,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 00:57:50,828 INFO L87 Difference]: Start difference. First operand 4618 states and 7317 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:51,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:51,695 INFO L93 Difference]: Finished difference Result 14543 states and 22798 transitions. [2023-12-21 00:57:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 00:57:51,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 558 [2023-12-21 00:57:51,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:51,734 INFO L225 Difference]: With dead ends: 14543 [2023-12-21 00:57:51,734 INFO L226 Difference]: Without dead ends: 10663 [2023-12-21 00:57:51,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-21 00:57:51,742 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 726 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:51,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 2144 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 00:57:51,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2023-12-21 00:57:52,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 7578. [2023-12-21 00:57:52,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7578 states, 6896 states have (on average 1.5511890951276102) internal successors, (10697), 6912 states have internal predecessors, (10697), 632 states have call successors, (632), 49 states have call predecessors, (632), 49 states have return successors, (632), 616 states have call predecessors, (632), 632 states have call successors, (632) [2023-12-21 00:57:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7578 states to 7578 states and 11961 transitions. [2023-12-21 00:57:52,112 INFO L78 Accepts]: Start accepts. Automaton has 7578 states and 11961 transitions. Word has length 558 [2023-12-21 00:57:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:52,113 INFO L495 AbstractCegarLoop]: Abstraction has 7578 states and 11961 transitions. [2023-12-21 00:57:52,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 7578 states and 11961 transitions. [2023-12-21 00:57:52,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-21 00:57:52,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:52,121 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:52,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:52,330 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 [2023-12-21 00:57:52,331 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:52,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1982897809, now seen corresponding path program 1 times [2023-12-21 00:57:52,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:52,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745011231] [2023-12-21 00:57:52,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:52,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:52,389 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:52,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844840197] [2023-12-21 00:57:52,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:52,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:52,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:52,391 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:57:52,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 00:57:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:52,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 00:57:52,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:57:52,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:57:52,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:52,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745011231] [2023-12-21 00:57:52,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:52,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844840197] [2023-12-21 00:57:52,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844840197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:57:52,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:57:52,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 00:57:52,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125851775] [2023-12-21 00:57:52,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:57:52,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 00:57:52,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:52,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 00:57:52,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 00:57:52,930 INFO L87 Difference]: Start difference. First operand 7578 states and 11961 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:53,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:53,645 INFO L93 Difference]: Finished difference Result 15027 states and 23524 transitions. [2023-12-21 00:57:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 00:57:53,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 558 [2023-12-21 00:57:53,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:53,665 INFO L225 Difference]: With dead ends: 15027 [2023-12-21 00:57:53,665 INFO L226 Difference]: Without dead ends: 9183 [2023-12-21 00:57:53,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 00:57:53,673 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 981 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:53,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 951 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 00:57:53,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9183 states. [2023-12-21 00:57:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9183 to 6988. [2023-12-21 00:57:54,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6988 states, 6306 states have (on average 1.5317158261972725) internal successors, (9659), 6322 states have internal predecessors, (9659), 632 states have call successors, (632), 49 states have call predecessors, (632), 49 states have return successors, (632), 616 states have call predecessors, (632), 632 states have call successors, (632) [2023-12-21 00:57:54,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6988 states to 6988 states and 10923 transitions. [2023-12-21 00:57:54,197 INFO L78 Accepts]: Start accepts. Automaton has 6988 states and 10923 transitions. Word has length 558 [2023-12-21 00:57:54,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:54,199 INFO L495 AbstractCegarLoop]: Abstraction has 6988 states and 10923 transitions. [2023-12-21 00:57:54,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:57:54,199 INFO L276 IsEmpty]: Start isEmpty. Operand 6988 states and 10923 transitions. [2023-12-21 00:57:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-21 00:57:54,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:54,209 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:54,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:54,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-21 00:57:54,419 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:54,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:54,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1368606249, now seen corresponding path program 1 times [2023-12-21 00:57:54,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:54,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539541625] [2023-12-21 00:57:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:54,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:54,478 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:54,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [309304966] [2023-12-21 00:57:54,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:54,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:54,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:54,480 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:57:54,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 00:57:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:54,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 00:57:54,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 7213 proven. 147 refuted. 0 times theorem prover too weak. 7260 trivial. 0 not checked. [2023-12-21 00:57:55,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:57:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 108 proven. 147 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-21 00:57:55,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539541625] [2023-12-21 00:57:55,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309304966] [2023-12-21 00:57:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309304966] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:57:55,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:57:55,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-21 00:57:55,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884964910] [2023-12-21 00:57:55,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:57:55,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 00:57:55,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:55,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 00:57:55,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 00:57:55,577 INFO L87 Difference]: Start difference. First operand 6988 states and 10923 transitions. Second operand has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 3 states have call successors, (135), 2 states have call predecessors, (135), 4 states have return successors, (136), 3 states have call predecessors, (136), 3 states have call successors, (136) [2023-12-21 00:57:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:57:56,319 INFO L93 Difference]: Finished difference Result 13854 states and 21620 transitions. [2023-12-21 00:57:56,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 00:57:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 3 states have call successors, (135), 2 states have call predecessors, (135), 4 states have return successors, (136), 3 states have call predecessors, (136), 3 states have call successors, (136) Word has length 558 [2023-12-21 00:57:56,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:57:56,335 INFO L225 Difference]: With dead ends: 13854 [2023-12-21 00:57:56,335 INFO L226 Difference]: Without dead ends: 7054 [2023-12-21 00:57:56,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1106 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-12-21 00:57:56,342 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 577 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 00:57:56,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 924 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 00:57:56,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2023-12-21 00:57:56,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 7000. [2023-12-21 00:57:56,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7000 states, 6315 states have (on average 1.5274742676167854) internal successors, (9646), 6331 states have internal predecessors, (9646), 632 states have call successors, (632), 52 states have call predecessors, (632), 52 states have return successors, (632), 616 states have call predecessors, (632), 632 states have call successors, (632) [2023-12-21 00:57:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7000 states to 7000 states and 10910 transitions. [2023-12-21 00:57:56,706 INFO L78 Accepts]: Start accepts. Automaton has 7000 states and 10910 transitions. Word has length 558 [2023-12-21 00:57:56,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:57:56,708 INFO L495 AbstractCegarLoop]: Abstraction has 7000 states and 10910 transitions. [2023-12-21 00:57:56,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 3 states have call successors, (135), 2 states have call predecessors, (135), 4 states have return successors, (136), 3 states have call predecessors, (136), 3 states have call successors, (136) [2023-12-21 00:57:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 7000 states and 10910 transitions. [2023-12-21 00:57:56,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-21 00:57:56,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:57:56,716 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:57:56,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 00:57:56,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:56,926 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:57:56,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:57:56,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1445507047, now seen corresponding path program 1 times [2023-12-21 00:57:56,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:57:56,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200825267] [2023-12-21 00:57:56,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:56,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:57:56,976 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:57:56,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582919613] [2023-12-21 00:57:56,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:57:56,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:57:56,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:57:56,978 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:57:56,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 00:57:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:57:57,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 00:57:57,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:57:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 1543 proven. 12 refuted. 0 times theorem prover too weak. 13065 trivial. 0 not checked. [2023-12-21 00:57:58,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:57:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 243 proven. 12 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-21 00:57:58,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:57:58,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200825267] [2023-12-21 00:57:58,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:57:58,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582919613] [2023-12-21 00:57:58,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582919613] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:57:58,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:57:58,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-12-21 00:57:58,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030007634] [2023-12-21 00:57:58,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:57:58,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 00:57:58,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:57:58,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 00:57:58,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-21 00:57:58,706 INFO L87 Difference]: Start difference. First operand 7000 states and 10910 transitions. Second operand has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 4 states have call successors, (172), 3 states have call predecessors, (172), 5 states have return successors, (172), 4 states have call predecessors, (172), 4 states have call successors, (172) [2023-12-21 00:58:03,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:58:03,164 INFO L93 Difference]: Finished difference Result 24947 states and 38596 transitions. [2023-12-21 00:58:03,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-21 00:58:03,165 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 4 states have call successors, (172), 3 states have call predecessors, (172), 5 states have return successors, (172), 4 states have call predecessors, (172), 4 states have call successors, (172) Word has length 558 [2023-12-21 00:58:03,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:58:03,210 INFO L225 Difference]: With dead ends: 24947 [2023-12-21 00:58:03,210 INFO L226 Difference]: Without dead ends: 19655 [2023-12-21 00:58:03,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1139 GetRequests, 1107 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=796, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 00:58:03,223 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 3283 mSDsluCounter, 2410 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 1320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3447 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 4070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1320 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-21 00:58:03,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3447 Valid, 3508 Invalid, 4070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1320 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-21 00:58:03,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19655 states. [2023-12-21 00:58:04,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19655 to 17928. [2023-12-21 00:58:04,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17928 states, 15848 states have (on average 1.5102852094901564) internal successors, (23935), 15903 states have internal predecessors, (23935), 1912 states have call successors, (1912), 167 states have call predecessors, (1912), 167 states have return successors, (1912), 1857 states have call predecessors, (1912), 1912 states have call successors, (1912) [2023-12-21 00:58:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17928 states to 17928 states and 27759 transitions. [2023-12-21 00:58:04,223 INFO L78 Accepts]: Start accepts. Automaton has 17928 states and 27759 transitions. Word has length 558 [2023-12-21 00:58:04,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:58:04,224 INFO L495 AbstractCegarLoop]: Abstraction has 17928 states and 27759 transitions. [2023-12-21 00:58:04,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 4 states have call successors, (172), 3 states have call predecessors, (172), 5 states have return successors, (172), 4 states have call predecessors, (172), 4 states have call successors, (172) [2023-12-21 00:58:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 17928 states and 27759 transitions. [2023-12-21 00:58:04,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-21 00:58:04,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:58:04,236 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:58:04,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-21 00:58:04,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-21 00:58:04,446 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:58:04,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:58:04,446 INFO L85 PathProgramCache]: Analyzing trace with hash 687978367, now seen corresponding path program 1 times [2023-12-21 00:58:04,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:58:04,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241297121] [2023-12-21 00:58:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:58:04,512 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:58:04,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570283703] [2023-12-21 00:58:04,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:04,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:58:04,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:58:04,513 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:58:04,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 00:58:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:58:04,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 00:58:04,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:58:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 5835 proven. 186 refuted. 0 times theorem prover too weak. 8599 trivial. 0 not checked. [2023-12-21 00:58:05,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:58:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 69 proven. 186 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-21 00:58:05,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:58:05,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241297121] [2023-12-21 00:58:05,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:58:05,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570283703] [2023-12-21 00:58:05,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570283703] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:58:05,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:58:05,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-21 00:58:05,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145579916] [2023-12-21 00:58:05,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:58:05,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 00:58:05,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:58:05,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 00:58:05,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-21 00:58:05,792 INFO L87 Difference]: Start difference. First operand 17928 states and 27759 transitions. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 2 states have call successors, (148), 2 states have call predecessors, (148), 4 states have return successors, (149), 2 states have call predecessors, (149), 2 states have call successors, (149) [2023-12-21 00:58:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:58:06,875 INFO L93 Difference]: Finished difference Result 32299 states and 49716 transitions. [2023-12-21 00:58:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 00:58:06,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 2 states have call successors, (148), 2 states have call predecessors, (148), 4 states have return successors, (149), 2 states have call predecessors, (149), 2 states have call successors, (149) Word has length 558 [2023-12-21 00:58:06,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:58:07,024 INFO L225 Difference]: With dead ends: 32299 [2023-12-21 00:58:07,024 INFO L226 Difference]: Without dead ends: 18280 [2023-12-21 00:58:07,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1105 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-21 00:58:07,050 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 303 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 00:58:07,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1068 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 00:58:07,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18280 states. [2023-12-21 00:58:08,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18280 to 13613. [2023-12-21 00:58:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13613 states, 12119 states have (on average 1.5102731248452843) internal successors, (18303), 12150 states have internal predecessors, (18303), 1362 states have call successors, (1362), 131 states have call predecessors, (1362), 131 states have return successors, (1362), 1331 states have call predecessors, (1362), 1362 states have call successors, (1362) [2023-12-21 00:58:08,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13613 states to 13613 states and 21027 transitions. [2023-12-21 00:58:08,039 INFO L78 Accepts]: Start accepts. Automaton has 13613 states and 21027 transitions. Word has length 558 [2023-12-21 00:58:08,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:58:08,040 INFO L495 AbstractCegarLoop]: Abstraction has 13613 states and 21027 transitions. [2023-12-21 00:58:08,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 2 states have call successors, (148), 2 states have call predecessors, (148), 4 states have return successors, (149), 2 states have call predecessors, (149), 2 states have call successors, (149) [2023-12-21 00:58:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 13613 states and 21027 transitions. [2023-12-21 00:58:08,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-21 00:58:08,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:58:08,050 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:58:08,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 00:58:08,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-21 00:58:08,260 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:58:08,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:58:08,260 INFO L85 PathProgramCache]: Analyzing trace with hash -887885591, now seen corresponding path program 1 times [2023-12-21 00:58:08,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:58:08,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521481970] [2023-12-21 00:58:08,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:08,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:58:08,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:58:08,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964536790] [2023-12-21 00:58:08,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:08,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:58:08,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:58:08,309 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:58:08,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 00:58:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:58:08,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-21 00:58:08,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:58:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 8952 proven. 96 refuted. 0 times theorem prover too weak. 5572 trivial. 0 not checked. [2023-12-21 00:58:11,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:58:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 888 proven. 114 refuted. 0 times theorem prover too weak. 13618 trivial. 0 not checked. [2023-12-21 00:58:14,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:58:14,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521481970] [2023-12-21 00:58:14,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:58:14,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964536790] [2023-12-21 00:58:14,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964536790] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:58:14,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:58:14,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2023-12-21 00:58:14,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779992678] [2023-12-21 00:58:14,665 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:58:14,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 00:58:14,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:58:14,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 00:58:14,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=828, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 00:58:14,668 INFO L87 Difference]: Start difference. First operand 13613 states and 21027 transitions. Second operand has 34 states, 32 states have (on average 8.90625) internal successors, (285), 30 states have internal predecessors, (285), 12 states have call successors, (172), 7 states have call predecessors, (172), 12 states have return successors, (172), 12 states have call predecessors, (172), 12 states have call successors, (172) [2023-12-21 00:58:23,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:58:23,479 INFO L93 Difference]: Finished difference Result 32341 states and 49878 transitions. [2023-12-21 00:58:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-21 00:58:23,479 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 8.90625) internal successors, (285), 30 states have internal predecessors, (285), 12 states have call successors, (172), 7 states have call predecessors, (172), 12 states have return successors, (172), 12 states have call predecessors, (172), 12 states have call successors, (172) Word has length 558 [2023-12-21 00:58:23,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:58:23,512 INFO L225 Difference]: With dead ends: 32341 [2023-12-21 00:58:23,512 INFO L226 Difference]: Without dead ends: 20860 [2023-12-21 00:58:23,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1177 GetRequests, 1093 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2479 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2136, Invalid=5174, Unknown=0, NotChecked=0, Total=7310 [2023-12-21 00:58:23,527 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 4302 mSDsluCounter, 5292 mSDsCounter, 0 mSdLazyCounter, 5542 mSolverCounterSat, 2749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4335 SdHoareTripleChecker+Valid, 6193 SdHoareTripleChecker+Invalid, 8291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2749 IncrementalHoareTripleChecker+Valid, 5542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-21 00:58:23,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4335 Valid, 6193 Invalid, 8291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2749 Valid, 5542 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-21 00:58:23,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20860 states. [2023-12-21 00:58:25,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20860 to 20465. [2023-12-21 00:58:25,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20465 states, 18267 states have (on average 1.5132753051951606) internal successors, (27643), 18313 states have internal predecessors, (27643), 1974 states have call successors, (1974), 223 states have call predecessors, (1974), 223 states have return successors, (1974), 1928 states have call predecessors, (1974), 1974 states have call successors, (1974) [2023-12-21 00:58:25,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20465 states to 20465 states and 31591 transitions. [2023-12-21 00:58:25,190 INFO L78 Accepts]: Start accepts. Automaton has 20465 states and 31591 transitions. Word has length 558 [2023-12-21 00:58:25,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:58:25,190 INFO L495 AbstractCegarLoop]: Abstraction has 20465 states and 31591 transitions. [2023-12-21 00:58:25,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 8.90625) internal successors, (285), 30 states have internal predecessors, (285), 12 states have call successors, (172), 7 states have call predecessors, (172), 12 states have return successors, (172), 12 states have call predecessors, (172), 12 states have call successors, (172) [2023-12-21 00:58:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 20465 states and 31591 transitions. [2023-12-21 00:58:25,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2023-12-21 00:58:25,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:58:25,202 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:58:25,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-21 00:58:25,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-21 00:58:25,413 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:58:25,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:58:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash -650223329, now seen corresponding path program 1 times [2023-12-21 00:58:25,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:58:25,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673142415] [2023-12-21 00:58:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:25,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:58:25,460 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:58:25,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924962954] [2023-12-21 00:58:25,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:25,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:58:25,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:58:25,462 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:58:25,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 00:58:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:58:25,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 00:58:25,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:58:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 4425 proven. 45 refuted. 0 times theorem prover too weak. 10150 trivial. 0 not checked. [2023-12-21 00:58:26,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:58:27,031 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 210 proven. 45 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-21 00:58:27,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:58:27,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673142415] [2023-12-21 00:58:27,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:58:27,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924962954] [2023-12-21 00:58:27,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924962954] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:58:27,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:58:27,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-12-21 00:58:27,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491809273] [2023-12-21 00:58:27,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:58:27,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 00:58:27,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:58:27,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 00:58:27,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-21 00:58:27,033 INFO L87 Difference]: Start difference. First operand 20465 states and 31591 transitions. Second operand has 10 states, 10 states have (on average 24.5) internal successors, (245), 10 states have internal predecessors, (245), 4 states have call successors, (172), 3 states have call predecessors, (172), 5 states have return successors, (172), 4 states have call predecessors, (172), 4 states have call successors, (172) [2023-12-21 00:58:32,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:58:32,435 INFO L93 Difference]: Finished difference Result 76198 states and 117462 transitions. [2023-12-21 00:58:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 00:58:32,436 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 24.5) internal successors, (245), 10 states have internal predecessors, (245), 4 states have call successors, (172), 3 states have call predecessors, (172), 5 states have return successors, (172), 4 states have call predecessors, (172), 4 states have call successors, (172) Word has length 559 [2023-12-21 00:58:32,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:58:32,538 INFO L225 Difference]: With dead ends: 76198 [2023-12-21 00:58:32,538 INFO L226 Difference]: Without dead ends: 58238 [2023-12-21 00:58:32,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1120 GetRequests, 1108 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2023-12-21 00:58:32,559 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 902 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 00:58:32,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 2151 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 00:58:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58238 states. [2023-12-21 00:58:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58238 to 46182. [2023-12-21 00:58:36,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46182 states, 40402 states have (on average 1.4927231325181922) internal successors, (60309), 40538 states have internal predecessors, (60309), 5194 states have call successors, (5194), 585 states have call predecessors, (5194), 585 states have return successors, (5194), 5058 states have call predecessors, (5194), 5194 states have call successors, (5194) [2023-12-21 00:58:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46182 states to 46182 states and 70697 transitions. [2023-12-21 00:58:36,887 INFO L78 Accepts]: Start accepts. Automaton has 46182 states and 70697 transitions. Word has length 559 [2023-12-21 00:58:36,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:58:36,888 INFO L495 AbstractCegarLoop]: Abstraction has 46182 states and 70697 transitions. [2023-12-21 00:58:36,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 24.5) internal successors, (245), 10 states have internal predecessors, (245), 4 states have call successors, (172), 3 states have call predecessors, (172), 5 states have return successors, (172), 4 states have call predecessors, (172), 4 states have call successors, (172) [2023-12-21 00:58:36,888 INFO L276 IsEmpty]: Start isEmpty. Operand 46182 states and 70697 transitions. [2023-12-21 00:58:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2023-12-21 00:58:36,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:58:36,909 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:58:36,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-21 00:58:37,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-21 00:58:37,111 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:58:37,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:58:37,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1543709667, now seen corresponding path program 1 times [2023-12-21 00:58:37,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:58:37,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083808358] [2023-12-21 00:58:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:37,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:58:37,158 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:58:37,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1281558499] [2023-12-21 00:58:37,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:37,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:58:37,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:58:37,160 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:58:37,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 00:58:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:58:37,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 00:58:37,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:58:38,753 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 6745 proven. 165 refuted. 0 times theorem prover too weak. 7710 trivial. 0 not checked. [2023-12-21 00:58:38,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:58:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 90 proven. 165 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-21 00:58:39,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:58:39,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083808358] [2023-12-21 00:58:39,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:58:39,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281558499] [2023-12-21 00:58:39,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281558499] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:58:39,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:58:39,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-21 00:58:39,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500940381] [2023-12-21 00:58:39,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:58:39,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 00:58:39,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:58:39,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 00:58:39,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-21 00:58:39,234 INFO L87 Difference]: Start difference. First operand 46182 states and 70697 transitions. Second operand has 14 states, 14 states have (on average 17.642857142857142) internal successors, (247), 14 states have internal predecessors, (247), 4 states have call successors, (172), 3 states have call predecessors, (172), 5 states have return successors, (172), 4 states have call predecessors, (172), 4 states have call successors, (172) [2023-12-21 00:58:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:58:43,961 INFO L93 Difference]: Finished difference Result 91061 states and 138784 transitions. [2023-12-21 00:58:43,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 00:58:43,965 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.642857142857142) internal successors, (247), 14 states have internal predecessors, (247), 4 states have call successors, (172), 3 states have call predecessors, (172), 5 states have return successors, (172), 4 states have call predecessors, (172), 4 states have call successors, (172) Word has length 559 [2023-12-21 00:58:43,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:58:44,053 INFO L225 Difference]: With dead ends: 91061 [2023-12-21 00:58:44,053 INFO L226 Difference]: Without dead ends: 46628 [2023-12-21 00:58:44,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1126 GetRequests, 1106 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2023-12-21 00:58:44,092 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 794 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 00:58:44,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 909 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 00:58:44,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46628 states. [2023-12-21 00:58:47,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46628 to 45974. [2023-12-21 00:58:47,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45974 states, 40165 states have (on average 1.464558695381551) internal successors, (58824), 40301 states have internal predecessors, (58824), 5194 states have call successors, (5194), 614 states have call predecessors, (5194), 614 states have return successors, (5194), 5058 states have call predecessors, (5194), 5194 states have call successors, (5194) [2023-12-21 00:58:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45974 states to 45974 states and 69212 transitions. [2023-12-21 00:58:48,002 INFO L78 Accepts]: Start accepts. Automaton has 45974 states and 69212 transitions. Word has length 559 [2023-12-21 00:58:48,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:58:48,003 INFO L495 AbstractCegarLoop]: Abstraction has 45974 states and 69212 transitions. [2023-12-21 00:58:48,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.642857142857142) internal successors, (247), 14 states have internal predecessors, (247), 4 states have call successors, (172), 3 states have call predecessors, (172), 5 states have return successors, (172), 4 states have call predecessors, (172), 4 states have call successors, (172) [2023-12-21 00:58:48,003 INFO L276 IsEmpty]: Start isEmpty. Operand 45974 states and 69212 transitions. [2023-12-21 00:58:48,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2023-12-21 00:58:48,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:58:48,020 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:58:48,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 00:58:48,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:58:48,221 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:58:48,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:58:48,222 INFO L85 PathProgramCache]: Analyzing trace with hash 379518367, now seen corresponding path program 1 times [2023-12-21 00:58:48,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:58:48,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885023683] [2023-12-21 00:58:48,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:48,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:58:48,266 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:58:48,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798059837] [2023-12-21 00:58:48,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:48,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:58:48,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:58:48,268 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:58:48,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 00:58:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:58:48,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 00:58:48,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:58:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 8230 proven. 375 refuted. 0 times theorem prover too weak. 6015 trivial. 0 not checked. [2023-12-21 00:58:49,811 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:58:50,361 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 372 proven. 384 refuted. 0 times theorem prover too weak. 13864 trivial. 0 not checked. [2023-12-21 00:58:50,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:58:50,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885023683] [2023-12-21 00:58:50,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:58:50,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798059837] [2023-12-21 00:58:50,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798059837] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:58:50,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:58:50,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-12-21 00:58:50,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101171881] [2023-12-21 00:58:50,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:58:50,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-21 00:58:50,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:58:50,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-21 00:58:50,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2023-12-21 00:58:50,365 INFO L87 Difference]: Start difference. First operand 45974 states and 69212 transitions. Second operand has 22 states, 21 states have (on average 10.238095238095237) internal successors, (215), 20 states have internal predecessors, (215), 7 states have call successors, (133), 4 states have call predecessors, (133), 9 states have return successors, (134), 7 states have call predecessors, (134), 7 states have call successors, (134) [2023-12-21 00:58:55,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:58:55,424 INFO L93 Difference]: Finished difference Result 66535 states and 99587 transitions. [2023-12-21 00:58:55,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 00:58:55,428 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.238095238095237) internal successors, (215), 20 states have internal predecessors, (215), 7 states have call successors, (133), 4 states have call predecessors, (133), 9 states have return successors, (134), 7 states have call predecessors, (134), 7 states have call successors, (134) Word has length 559 [2023-12-21 00:58:55,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:58:55,489 INFO L225 Difference]: With dead ends: 66535 [2023-12-21 00:58:55,489 INFO L226 Difference]: Without dead ends: 37154 [2023-12-21 00:58:55,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1129 GetRequests, 1097 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=780, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 00:58:55,514 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1299 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 00:58:55,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 1191 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 00:58:55,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37154 states. [2023-12-21 00:58:58,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37154 to 36524. [2023-12-21 00:58:58,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36524 states, 31498 states have (on average 1.4508222744301225) internal successors, (45698), 31612 states have internal predecessors, (45698), 4410 states have call successors, (4410), 615 states have call predecessors, (4410), 615 states have return successors, (4410), 4296 states have call predecessors, (4410), 4410 states have call successors, (4410) [2023-12-21 00:58:58,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36524 states to 36524 states and 54518 transitions. [2023-12-21 00:58:58,973 INFO L78 Accepts]: Start accepts. Automaton has 36524 states and 54518 transitions. Word has length 559 [2023-12-21 00:58:58,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:58:58,974 INFO L495 AbstractCegarLoop]: Abstraction has 36524 states and 54518 transitions. [2023-12-21 00:58:58,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.238095238095237) internal successors, (215), 20 states have internal predecessors, (215), 7 states have call successors, (133), 4 states have call predecessors, (133), 9 states have return successors, (134), 7 states have call predecessors, (134), 7 states have call successors, (134) [2023-12-21 00:58:58,974 INFO L276 IsEmpty]: Start isEmpty. Operand 36524 states and 54518 transitions. [2023-12-21 00:58:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2023-12-21 00:58:58,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:58:58,984 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:58:58,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-21 00:58:59,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:58:59,185 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:58:59,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:58:59,186 INFO L85 PathProgramCache]: Analyzing trace with hash -649266898, now seen corresponding path program 1 times [2023-12-21 00:58:59,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:58:59,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563029020] [2023-12-21 00:58:59,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:59,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:58:59,231 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:58:59,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [916293993] [2023-12-21 00:58:59,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:58:59,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:58:59,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:58:59,233 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:58:59,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-21 00:58:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:58:59,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 00:58:59,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:59:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 6135 proven. 180 refuted. 0 times theorem prover too weak. 8305 trivial. 0 not checked. [2023-12-21 00:59:00,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:59:00,536 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 75 proven. 180 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-21 00:59:00,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:59:00,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563029020] [2023-12-21 00:59:00,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:59:00,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916293993] [2023-12-21 00:59:00,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916293993] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:59:00,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:59:00,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 00:59:00,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719944698] [2023-12-21 00:59:00,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:59:00,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 00:59:00,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:59:00,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 00:59:00,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 00:59:00,539 INFO L87 Difference]: Start difference. First operand 36524 states and 54518 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (147), 2 states have call predecessors, (147), 2 states have call successors, (147) [2023-12-21 00:59:01,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:59:01,321 INFO L93 Difference]: Finished difference Result 36646 states and 54645 transitions. [2023-12-21 00:59:01,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 00:59:01,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (147), 2 states have call predecessors, (147), 2 states have call successors, (147) Word has length 560 [2023-12-21 00:59:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:59:01,330 INFO L225 Difference]: With dead ends: 36646 [2023-12-21 00:59:01,330 INFO L226 Difference]: Without dead ends: 4535 [2023-12-21 00:59:01,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1122 GetRequests, 1112 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-21 00:59:01,358 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 395 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 00:59:01,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 716 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 00:59:01,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4535 states. [2023-12-21 00:59:01,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4535 to 3437. [2023-12-21 00:59:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3437 states, 3029 states have (on average 1.4235721360184879) internal successors, (4312), 3033 states have internal predecessors, (4312), 346 states have call successors, (346), 61 states have call predecessors, (346), 61 states have return successors, (346), 342 states have call predecessors, (346), 346 states have call successors, (346) [2023-12-21 00:59:01,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3437 states to 3437 states and 5004 transitions. [2023-12-21 00:59:01,599 INFO L78 Accepts]: Start accepts. Automaton has 3437 states and 5004 transitions. Word has length 560 [2023-12-21 00:59:01,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:59:01,600 INFO L495 AbstractCegarLoop]: Abstraction has 3437 states and 5004 transitions. [2023-12-21 00:59:01,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (147), 2 states have call predecessors, (147), 2 states have call successors, (147) [2023-12-21 00:59:01,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3437 states and 5004 transitions. [2023-12-21 00:59:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2023-12-21 00:59:01,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:59:01,604 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:59:01,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-21 00:59:01,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:59:01,805 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:59:01,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:59:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash 216731357, now seen corresponding path program 1 times [2023-12-21 00:59:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:59:01,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333344253] [2023-12-21 00:59:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:59:01,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:59:01,849 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:59:01,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578692082] [2023-12-21 00:59:01,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:59:01,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:59:01,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:59:01,851 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:59:01,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-21 00:59:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:59:02,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 00:59:02,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:59:02,385 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-21 00:59:02,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 00:59:02,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:59:02,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333344253] [2023-12-21 00:59:02,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:59:02,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578692082] [2023-12-21 00:59:02,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578692082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 00:59:02,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 00:59:02,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 00:59:02,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872792344] [2023-12-21 00:59:02,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 00:59:02,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 00:59:02,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:59:02,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 00:59:02,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 00:59:02,387 INFO L87 Difference]: Start difference. First operand 3437 states and 5004 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:59:02,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:59:02,958 INFO L93 Difference]: Finished difference Result 6296 states and 9147 transitions. [2023-12-21 00:59:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 00:59:02,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 560 [2023-12-21 00:59:02,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:59:02,965 INFO L225 Difference]: With dead ends: 6296 [2023-12-21 00:59:02,965 INFO L226 Difference]: Without dead ends: 3909 [2023-12-21 00:59:02,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 00:59:02,968 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 367 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 00:59:02,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 975 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 00:59:02,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3909 states. [2023-12-21 00:59:03,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3909 to 2685. [2023-12-21 00:59:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2323 states have (on average 1.4033577270770556) internal successors, (3260), 2325 states have internal predecessors, (3260), 302 states have call successors, (302), 59 states have call predecessors, (302), 59 states have return successors, (302), 300 states have call predecessors, (302), 302 states have call successors, (302) [2023-12-21 00:59:03,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3864 transitions. [2023-12-21 00:59:03,192 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3864 transitions. Word has length 560 [2023-12-21 00:59:03,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:59:03,193 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 3864 transitions. [2023-12-21 00:59:03,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-21 00:59:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3864 transitions. [2023-12-21 00:59:03,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2023-12-21 00:59:03,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:59:03,198 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:59:03,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-21 00:59:03,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:59:03,405 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:59:03,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:59:03,405 INFO L85 PathProgramCache]: Analyzing trace with hash -178460670, now seen corresponding path program 1 times [2023-12-21 00:59:03,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:59:03,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155863094] [2023-12-21 00:59:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:59:03,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:59:03,450 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:59:03,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163150940] [2023-12-21 00:59:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:59:03,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:59:03,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:59:03,451 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:59:03,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-21 00:59:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:59:03,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 00:59:03,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:59:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 6525 proven. 171 refuted. 0 times theorem prover too weak. 7924 trivial. 0 not checked. [2023-12-21 00:59:04,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:59:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 84 proven. 171 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-21 00:59:04,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:59:04,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155863094] [2023-12-21 00:59:04,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:59:04,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163150940] [2023-12-21 00:59:04,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163150940] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 00:59:04,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 00:59:04,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 00:59:04,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821893453] [2023-12-21 00:59:04,604 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 00:59:04,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 00:59:04,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:59:04,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 00:59:04,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 00:59:04,605 INFO L87 Difference]: Start difference. First operand 2685 states and 3864 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 2 states have call successors, (143), 2 states have call predecessors, (143), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) [2023-12-21 00:59:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:59:05,231 INFO L93 Difference]: Finished difference Result 4399 states and 6302 transitions. [2023-12-21 00:59:05,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 00:59:05,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 2 states have call successors, (143), 2 states have call predecessors, (143), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) Word has length 561 [2023-12-21 00:59:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:59:05,237 INFO L225 Difference]: With dead ends: 4399 [2023-12-21 00:59:05,237 INFO L226 Difference]: Without dead ends: 2373 [2023-12-21 00:59:05,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1124 GetRequests, 1114 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-21 00:59:05,240 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 311 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 00:59:05,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 718 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 00:59:05,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2023-12-21 00:59:05,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2193. [2023-12-21 00:59:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1828 states have (on average 1.3791028446389497) internal successors, (2521), 1830 states have internal predecessors, (2521), 302 states have call successors, (302), 62 states have call predecessors, (302), 62 states have return successors, (302), 300 states have call predecessors, (302), 302 states have call successors, (302) [2023-12-21 00:59:05,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3125 transitions. [2023-12-21 00:59:05,472 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3125 transitions. Word has length 561 [2023-12-21 00:59:05,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:59:05,473 INFO L495 AbstractCegarLoop]: Abstraction has 2193 states and 3125 transitions. [2023-12-21 00:59:05,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 2 states have call successors, (143), 2 states have call predecessors, (143), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) [2023-12-21 00:59:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3125 transitions. [2023-12-21 00:59:05,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2023-12-21 00:59:05,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:59:05,476 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:59:05,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-21 00:59:05,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:59:05,677 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:59:05,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:59:05,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1746673818, now seen corresponding path program 1 times [2023-12-21 00:59:05,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:59:05,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863306421] [2023-12-21 00:59:05,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:59:05,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:59:05,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:59:05,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1751884542] [2023-12-21 00:59:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:59:05,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:59:05,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:59:05,723 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:59:05,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-21 00:59:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 00:59:08,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-21 00:59:08,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 00:59:14,446 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 9590 proven. 1356 refuted. 0 times theorem prover too weak. 3674 trivial. 0 not checked. [2023-12-21 00:59:14,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 00:59:38,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 00:59:38,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863306421] [2023-12-21 00:59:38,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 00:59:38,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751884542] [2023-12-21 00:59:38,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751884542] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 00:59:38,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-21 00:59:38,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2023-12-21 00:59:38,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803076838] [2023-12-21 00:59:38,028 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-21 00:59:38,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 00:59:38,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 00:59:38,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 00:59:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=444, Invalid=1448, Unknown=0, NotChecked=0, Total=1892 [2023-12-21 00:59:38,030 INFO L87 Difference]: Start difference. First operand 2193 states and 3125 transitions. Second operand has 34 states, 34 states have (on average 5.176470588235294) internal successors, (176), 30 states have internal predecessors, (176), 11 states have call successors, (86), 11 states have call predecessors, (86), 15 states have return successors, (86), 10 states have call predecessors, (86), 11 states have call successors, (86) [2023-12-21 00:59:44,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 00:59:44,319 INFO L93 Difference]: Finished difference Result 4325 states and 6079 transitions. [2023-12-21 00:59:44,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-21 00:59:44,320 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.176470588235294) internal successors, (176), 30 states have internal predecessors, (176), 11 states have call successors, (86), 11 states have call predecessors, (86), 15 states have return successors, (86), 10 states have call predecessors, (86), 11 states have call successors, (86) Word has length 561 [2023-12-21 00:59:44,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 00:59:44,325 INFO L225 Difference]: With dead ends: 4325 [2023-12-21 00:59:44,325 INFO L226 Difference]: Without dead ends: 2373 [2023-12-21 00:59:44,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=846, Invalid=2576, Unknown=0, NotChecked=0, Total=3422 [2023-12-21 00:59:44,330 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 481 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 3170 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 3182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 00:59:44,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 2045 Invalid, 3182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3170 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 00:59:44,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2023-12-21 00:59:44,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2333. [2023-12-21 00:59:44,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2333 states, 1933 states have (on average 1.3543714433523022) internal successors, (2618), 1935 states have internal predecessors, (2618), 302 states have call successors, (302), 97 states have call predecessors, (302), 97 states have return successors, (302), 300 states have call predecessors, (302), 302 states have call successors, (302) [2023-12-21 00:59:44,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 3222 transitions. [2023-12-21 00:59:44,577 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 3222 transitions. Word has length 561 [2023-12-21 00:59:44,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 00:59:44,577 INFO L495 AbstractCegarLoop]: Abstraction has 2333 states and 3222 transitions. [2023-12-21 00:59:44,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.176470588235294) internal successors, (176), 30 states have internal predecessors, (176), 11 states have call successors, (86), 11 states have call predecessors, (86), 15 states have return successors, (86), 10 states have call predecessors, (86), 11 states have call successors, (86) [2023-12-21 00:59:44,577 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 3222 transitions. [2023-12-21 00:59:44,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2023-12-21 00:59:44,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 00:59:44,581 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:59:44,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-21 00:59:44,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:59:44,782 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 00:59:44,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 00:59:44,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2055667304, now seen corresponding path program 1 times [2023-12-21 00:59:44,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 00:59:44,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029679536] [2023-12-21 00:59:44,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:59:44,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 00:59:44,828 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 00:59:44,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845682485] [2023-12-21 00:59:44,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 00:59:44,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 00:59:44,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 00:59:44,830 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 00:59:44,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-21 00:59:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-21 00:59:45,797 WARN L124 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2023-12-21 00:59:45,797 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-12-21 00:59:45,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 00:59:45,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-12-21 00:59:46,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-21 00:59:46,021 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 00:59:46,024 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 00:59:46,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 12:59:46 BoogieIcfgContainer [2023-12-21 00:59:46,065 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 00:59:46,065 INFO L158 Benchmark]: Toolchain (without parser) took 138322.98ms. Allocated memory was 260.0MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 210.4MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-21 00:59:46,065 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory is still 162.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 00:59:46,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.12ms. Allocated memory is still 260.0MB. Free memory was 209.8MB in the beginning and 172.7MB in the end (delta: 37.1MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-21 00:59:46,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.53ms. Allocated memory is still 260.0MB. Free memory was 172.7MB in the beginning and 157.4MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 00:59:46,066 INFO L158 Benchmark]: Boogie Preprocessor took 207.98ms. Allocated memory is still 260.0MB. Free memory was 157.4MB in the beginning and 159.1MB in the end (delta: -1.7MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. [2023-12-21 00:59:46,066 INFO L158 Benchmark]: RCFGBuilder took 1362.21ms. Allocated memory is still 260.0MB. Free memory was 159.1MB in the beginning and 169.7MB in the end (delta: -10.6MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-21 00:59:46,067 INFO L158 Benchmark]: TraceAbstraction took 136066.30ms. Allocated memory was 260.0MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 169.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-12-21 00:59:46,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory is still 162.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 547.12ms. Allocated memory is still 260.0MB. Free memory was 209.8MB in the beginning and 172.7MB in the end (delta: 37.1MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 134.53ms. Allocated memory is still 260.0MB. Free memory was 172.7MB in the beginning and 157.4MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 207.98ms. Allocated memory is still 260.0MB. Free memory was 157.4MB in the beginning and 159.1MB in the end (delta: -1.7MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1362.21ms. Allocated memory is still 260.0MB. Free memory was 159.1MB in the beginning and 169.7MB in the end (delta: -10.6MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 136066.30ms. Allocated memory was 260.0MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 169.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of someBinaryFLOATComparisonOperation at line 664, overapproximation of someUnaryDOUBLEoperation at line 31, overapproximation of someBinaryArithmeticDOUBLEoperation at line 311, overapproximation of someBinaryDOUBLEComparisonOperation at line 664, overapproximation of bitwise operation at line 505. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 1; [L23] unsigned char var_1_4 = 64; [L24] signed long int var_1_6 = -1; [L25] unsigned short int var_1_7 = 45218; [L26] double var_1_9 = 128.4; [L27] unsigned short int var_1_10 = 40875; [L28] double var_1_14 = 7.125; [L29] double var_1_15 = 10.6; [L30] double var_1_16 = 0.6; [L31] double var_1_17 = -0.8; [L32] double var_1_18 = 15.75; [L33] double var_1_19 = 255.25; [L34] double var_1_20 = 63.942; [L35] double var_1_21 = 64.5; [L36] double var_1_22 = 50.75; [L37] double var_1_23 = 1.8; [L38] double var_1_24 = 0.175; [L39] unsigned char var_1_25 = 1; [L40] unsigned char var_1_27 = 1; [L41] unsigned char var_1_28 = 0; [L42] unsigned char var_1_29 = 0; [L43] unsigned char var_1_30 = 0; [L44] unsigned char var_1_31 = 1; [L45] unsigned long int var_1_32 = 32; [L46] unsigned long int var_1_34 = 1469948749; [L47] double var_1_35 = 49.175; [L48] double var_1_36 = 127.6; [L49] unsigned short int var_1_37 = 64; [L50] unsigned long int var_1_38 = 5; [L51] unsigned long int var_1_39 = 1000000000; [L52] unsigned long int var_1_40 = 1000000000; [L53] unsigned long int var_1_41 = 1581617635; [L54] float var_1_42 = 16.25; [L55] signed char var_1_43 = -4; [L56] signed char var_1_44 = 0; [L57] signed char var_1_45 = 2; [L58] signed char var_1_46 = 10; [L59] signed char var_1_47 = 2; [L60] signed char var_1_48 = -4; [L61] signed char var_1_49 = 1; [L62] double var_1_50 = 63.4; [L63] float var_1_51 = 3.75; [L64] signed long int var_1_52 = 100; [L65] unsigned long int var_1_53 = 2; [L66] unsigned long int var_1_54 = 3582328097; [L67] unsigned short int var_1_55 = 16; [L68] double var_1_56 = 31.4; [L69] signed char var_1_57 = 64; [L70] signed char var_1_58 = 32; [L71] signed char var_1_59 = 100; [L72] signed short int var_1_60 = 200; [L73] signed short int var_1_61 = -500; [L74] signed char var_1_62 = 2; [L75] unsigned char var_1_63 = 128; [L76] signed char var_1_64 = -64; [L77] signed char var_1_65 = 16; [L78] signed char var_1_66 = 4; [L79] signed long int var_1_67 = -2; [L80] signed long int var_1_68 = 1396682933; [L81] unsigned char var_1_69 = 0; [L82] float var_1_70 = 7.5; [L83] unsigned char var_1_71 = 1; [L84] unsigned short int var_1_72 = 500; [L85] signed char var_1_73 = 2; [L86] signed long int var_1_74 = -200; [L87] unsigned char var_1_75 = 0; [L88] signed long int var_1_76 = -2; [L89] unsigned char var_1_78 = 1; [L90] unsigned long int var_1_79 = 500; [L91] signed char var_1_80 = -4; [L92] signed char var_1_81 = 1; [L93] unsigned char var_1_82 = 1; [L94] unsigned char var_1_83 = 0; [L95] unsigned char var_1_84 = 1; [L96] unsigned char var_1_85 = 0; [L97] unsigned char var_1_86 = 128; [L98] unsigned char var_1_87 = 32; [L99] unsigned char var_1_88 = 32; [L100] signed char var_1_89 = 64; [L101] unsigned short int var_1_90 = 32; [L102] unsigned short int var_1_91 = 20540; [L103] signed long int var_1_92 = 1; [L104] signed long int var_1_93 = -5; [L105] signed long int var_1_94 = 1976681352; [L106] unsigned char var_1_95 = 0; [L107] unsigned char var_1_96 = 0; [L108] signed long int var_1_97 = 10; [L109] unsigned char var_1_98 = 10; [L110] unsigned char var_1_99 = 200; [L111] unsigned char var_1_100 = 2; [L112] float var_1_101 = -0.75; [L113] float var_1_102 = 2.7; [L114] unsigned long int var_1_103 = 25; [L115] float var_1_104 = 4.6; [L116] unsigned short int var_1_105 = 16; [L117] signed char var_1_106 = -2; [L118] signed short int var_1_107 = -8; [L119] unsigned long int var_1_108 = 25; [L120] signed char var_1_109 = -128; [L121] unsigned long int var_1_110 = 16; [L122] unsigned long int var_1_111 = 64; [L123] unsigned char var_1_112 = 32; [L124] unsigned short int last_1_var_1_1 = 1; [L125] float last_1_var_1_42 = 16.25; [L126] double last_1_var_1_56 = 31.4; [L127] signed char last_1_var_1_73 = 2; [L128] signed char last_1_var_1_80 = -4; [L129] unsigned char last_1_var_1_85 = 0; [L130] signed long int last_1_var_1_97 = 10; [L131] unsigned char last_1_var_1_98 = 10; [L132] unsigned long int last_1_var_1_103 = 25; [L133] unsigned long int last_1_var_1_111 = 64; [L668] isInitial = 1 [L669] FCALL initially() [L670] COND TRUE 1 [L671] CALL updateLastVariables() [L652] last_1_var_1_1 = var_1_1 [L653] last_1_var_1_42 = var_1_42 [L654] last_1_var_1_56 = var_1_56 [L655] last_1_var_1_73 = var_1_73 [L656] last_1_var_1_80 = var_1_80 [L657] last_1_var_1_85 = var_1_85 [L658] last_1_var_1_97 = var_1_97 [L659] last_1_var_1_98 = var_1_98 [L660] last_1_var_1_103 = var_1_103 [L661] last_1_var_1_111 = var_1_111 [L671] RET updateLastVariables() [L672] CALL updateVariables() [L516] var_1_4 = __VERIFIER_nondet_uchar() [L517] CALL assume_abort_if_not(var_1_4 >= 1) [L20] COND FALSE !(!cond) [L517] RET assume_abort_if_not(var_1_4 >= 1) [L518] CALL assume_abort_if_not(var_1_4 <= 127) [L20] COND FALSE !(!cond) [L518] RET assume_abort_if_not(var_1_4 <= 127) [L519] var_1_6 = __VERIFIER_nondet_long() [L520] CALL assume_abort_if_not(var_1_6 >= -2147483648) [L20] COND FALSE !(!cond) [L520] RET assume_abort_if_not(var_1_6 >= -2147483648) [L521] CALL assume_abort_if_not(var_1_6 <= 2147483647) [L20] COND FALSE !(!cond) [L521] RET assume_abort_if_not(var_1_6 <= 2147483647) [L522] CALL assume_abort_if_not(var_1_6 != 0) [L20] COND FALSE !(!cond) [L522] RET assume_abort_if_not(var_1_6 != 0) [L523] var_1_7 = __VERIFIER_nondet_ushort() [L524] CALL assume_abort_if_not(var_1_7 >= 32767) [L20] COND FALSE !(!cond) [L524] RET assume_abort_if_not(var_1_7 >= 32767) [L525] CALL assume_abort_if_not(var_1_7 <= 65534) [L20] COND FALSE !(!cond) [L525] RET assume_abort_if_not(var_1_7 <= 65534) [L526] var_1_10 = __VERIFIER_nondet_ushort() [L527] CALL assume_abort_if_not(var_1_10 >= 32767) [L20] COND FALSE !(!cond) [L527] RET assume_abort_if_not(var_1_10 >= 32767) [L528] CALL assume_abort_if_not(var_1_10 <= 65535) [L20] COND FALSE !(!cond) [L528] RET assume_abort_if_not(var_1_10 <= 65535) [L529] var_1_14 = __VERIFIER_nondet_double() [L530] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L530] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) [L531] var_1_15 = __VERIFIER_nondet_double() [L532] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L532] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) [L533] var_1_16 = __VERIFIER_nondet_double() [L534] CALL assume_abort_if_not((var_1_16 >= -230584.3009213691390e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 2305843.009213691390e+12F && var_1_16 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L534] RET assume_abort_if_not((var_1_16 >= -230584.3009213691390e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 2305843.009213691390e+12F && var_1_16 >= 1.0e-20F )) [L535] var_1_17 = __VERIFIER_nondet_double() [L536] CALL assume_abort_if_not((var_1_17 >= -230584.3009213691390e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 2305843.009213691390e+12F && var_1_17 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L536] RET assume_abort_if_not((var_1_17 >= -230584.3009213691390e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 2305843.009213691390e+12F && var_1_17 >= 1.0e-20F )) [L537] var_1_18 = __VERIFIER_nondet_double() [L538] CALL assume_abort_if_not((var_1_18 >= -230584.3009213691390e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 2305843.009213691390e+12F && var_1_18 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L538] RET assume_abort_if_not((var_1_18 >= -230584.3009213691390e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 2305843.009213691390e+12F && var_1_18 >= 1.0e-20F )) [L539] var_1_19 = __VERIFIER_nondet_double() [L540] CALL assume_abort_if_not((var_1_19 >= -230584.3009213691390e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 2305843.009213691390e+12F && var_1_19 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L540] RET assume_abort_if_not((var_1_19 >= -230584.3009213691390e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 2305843.009213691390e+12F && var_1_19 >= 1.0e-20F )) [L541] var_1_20 = __VERIFIER_nondet_double() [L542] CALL assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 4611686.018427382800e+12F && var_1_20 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L542] RET assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 4611686.018427382800e+12F && var_1_20 >= 1.0e-20F )) [L543] var_1_21 = __VERIFIER_nondet_double() [L544] CALL assume_abort_if_not((var_1_21 >= 0.0F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L544] RET assume_abort_if_not((var_1_21 >= 0.0F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) [L545] var_1_22 = __VERIFIER_nondet_double() [L546] CALL assume_abort_if_not((var_1_22 >= 0.0F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L546] RET assume_abort_if_not((var_1_22 >= 0.0F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) [L547] var_1_23 = __VERIFIER_nondet_double() [L548] CALL assume_abort_if_not((var_1_23 >= 0.0F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 2305843.009213691390e+12F && var_1_23 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L548] RET assume_abort_if_not((var_1_23 >= 0.0F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 2305843.009213691390e+12F && var_1_23 >= 1.0e-20F )) [L549] var_1_24 = __VERIFIER_nondet_double() [L550] CALL assume_abort_if_not((var_1_24 >= 0.0F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 2305843.009213691390e+12F && var_1_24 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L550] RET assume_abort_if_not((var_1_24 >= 0.0F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 2305843.009213691390e+12F && var_1_24 >= 1.0e-20F )) [L551] var_1_27 = __VERIFIER_nondet_uchar() [L552] CALL assume_abort_if_not(var_1_27 >= 1) [L20] COND FALSE !(!cond) [L552] RET assume_abort_if_not(var_1_27 >= 1) [L553] CALL assume_abort_if_not(var_1_27 <= 1) [L20] COND FALSE !(!cond) [L553] RET assume_abort_if_not(var_1_27 <= 1) [L554] var_1_28 = __VERIFIER_nondet_uchar() [L555] CALL assume_abort_if_not(var_1_28 >= 0) [L20] COND FALSE !(!cond) [L555] RET assume_abort_if_not(var_1_28 >= 0) [L556] CALL assume_abort_if_not(var_1_28 <= 0) [L20] COND FALSE !(!cond) [L556] RET assume_abort_if_not(var_1_28 <= 0) [L557] var_1_29 = __VERIFIER_nondet_uchar() [L558] CALL assume_abort_if_not(var_1_29 >= 0) [L20] COND FALSE !(!cond) [L558] RET assume_abort_if_not(var_1_29 >= 0) [L559] CALL assume_abort_if_not(var_1_29 <= 0) [L20] COND FALSE !(!cond) [L559] RET assume_abort_if_not(var_1_29 <= 0) [L560] var_1_30 = __VERIFIER_nondet_uchar() [L561] CALL assume_abort_if_not(var_1_30 >= 0) [L20] COND FALSE !(!cond) [L561] RET assume_abort_if_not(var_1_30 >= 0) [L562] CALL assume_abort_if_not(var_1_30 <= 0) [L20] COND FALSE !(!cond) [L562] RET assume_abort_if_not(var_1_30 <= 0) [L563] var_1_31 = __VERIFIER_nondet_uchar() [L564] CALL assume_abort_if_not(var_1_31 >= 1) [L20] COND FALSE !(!cond) [L564] RET assume_abort_if_not(var_1_31 >= 1) [L565] CALL assume_abort_if_not(var_1_31 <= 1) [L20] COND FALSE !(!cond) [L565] RET assume_abort_if_not(var_1_31 <= 1) [L566] var_1_34 = __VERIFIER_nondet_ulong() [L567] CALL assume_abort_if_not(var_1_34 >= 1073741823) [L20] COND FALSE !(!cond) [L567] RET assume_abort_if_not(var_1_34 >= 1073741823) [L568] CALL assume_abort_if_not(var_1_34 <= 2147483647) [L20] COND FALSE !(!cond) [L568] RET assume_abort_if_not(var_1_34 <= 2147483647) [L569] var_1_36 = __VERIFIER_nondet_double() [L570] CALL assume_abort_if_not((var_1_36 >= -922337.2036854776000e+13F && var_1_36 <= -1.0e-20F) || (var_1_36 <= 9223372.036854776000e+12F && var_1_36 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L570] RET assume_abort_if_not((var_1_36 >= -922337.2036854776000e+13F && var_1_36 <= -1.0e-20F) || (var_1_36 <= 9223372.036854776000e+12F && var_1_36 >= 1.0e-20F )) [L571] CALL assume_abort_if_not(var_1_36 != 0.0F) [L20] COND FALSE !(!cond) [L571] RET assume_abort_if_not(var_1_36 != 0.0F) [L572] var_1_39 = __VERIFIER_nondet_ulong() [L573] CALL assume_abort_if_not(var_1_39 >= 536870912) [L20] COND FALSE !(!cond) [L573] RET assume_abort_if_not(var_1_39 >= 536870912) [L574] CALL assume_abort_if_not(var_1_39 <= 1073741824) [L20] COND FALSE !(!cond) [L574] RET assume_abort_if_not(var_1_39 <= 1073741824) [L575] var_1_40 = __VERIFIER_nondet_ulong() [L576] CALL assume_abort_if_not(var_1_40 >= 536870912) [L20] COND FALSE !(!cond) [L576] RET assume_abort_if_not(var_1_40 >= 536870912) [L577] CALL assume_abort_if_not(var_1_40 <= 1073741823) [L20] COND FALSE !(!cond) [L577] RET assume_abort_if_not(var_1_40 <= 1073741823) [L578] var_1_41 = __VERIFIER_nondet_ulong() [L579] CALL assume_abort_if_not(var_1_41 >= 1073741823) [L20] COND FALSE !(!cond) [L579] RET assume_abort_if_not(var_1_41 >= 1073741823) [L580] CALL assume_abort_if_not(var_1_41 <= 2147483647) [L20] COND FALSE !(!cond) [L580] RET assume_abort_if_not(var_1_41 <= 2147483647) [L581] var_1_44 = __VERIFIER_nondet_char() [L582] CALL assume_abort_if_not(var_1_44 >= 0) [L20] COND FALSE !(!cond) [L582] RET assume_abort_if_not(var_1_44 >= 0) [L583] CALL assume_abort_if_not(var_1_44 <= 126) [L20] COND FALSE !(!cond) [L583] RET assume_abort_if_not(var_1_44 <= 126) [L584] var_1_45 = __VERIFIER_nondet_char() [L585] CALL assume_abort_if_not(var_1_45 >= -31) [L20] COND FALSE !(!cond) [L585] RET assume_abort_if_not(var_1_45 >= -31) [L586] CALL assume_abort_if_not(var_1_45 <= 32) [L20] COND FALSE !(!cond) [L586] RET assume_abort_if_not(var_1_45 <= 32) [L587] var_1_46 = __VERIFIER_nondet_char() [L588] CALL assume_abort_if_not(var_1_46 >= 0) [L20] COND FALSE !(!cond) [L588] RET assume_abort_if_not(var_1_46 >= 0) [L589] CALL assume_abort_if_not(var_1_46 <= 31) [L20] COND FALSE !(!cond) [L589] RET assume_abort_if_not(var_1_46 <= 31) [L590] var_1_47 = __VERIFIER_nondet_char() [L591] CALL assume_abort_if_not(var_1_47 >= 0) [L20] COND FALSE !(!cond) [L591] RET assume_abort_if_not(var_1_47 >= 0) [L592] CALL assume_abort_if_not(var_1_47 <= 31) [L20] COND FALSE !(!cond) [L592] RET assume_abort_if_not(var_1_47 <= 31) [L593] var_1_48 = __VERIFIER_nondet_char() [L594] CALL assume_abort_if_not(var_1_48 >= -63) [L20] COND FALSE !(!cond) [L594] RET assume_abort_if_not(var_1_48 >= -63) [L595] CALL assume_abort_if_not(var_1_48 <= 63) [L20] COND FALSE !(!cond) [L595] RET assume_abort_if_not(var_1_48 <= 63) [L596] var_1_54 = __VERIFIER_nondet_ulong() [L597] CALL assume_abort_if_not(var_1_54 >= 2147483647) [L20] COND FALSE !(!cond) [L597] RET assume_abort_if_not(var_1_54 >= 2147483647) [L598] CALL assume_abort_if_not(var_1_54 <= 4294967294) [L20] COND FALSE !(!cond) [L598] RET assume_abort_if_not(var_1_54 <= 4294967294) [L599] var_1_58 = __VERIFIER_nondet_char() [L600] CALL assume_abort_if_not(var_1_58 >= -1) [L20] COND FALSE !(!cond) [L600] RET assume_abort_if_not(var_1_58 >= -1) [L601] CALL assume_abort_if_not(var_1_58 <= 126) [L20] COND FALSE !(!cond) [L601] RET assume_abort_if_not(var_1_58 <= 126) [L602] var_1_59 = __VERIFIER_nondet_char() [L603] CALL assume_abort_if_not(var_1_59 >= 62) [L20] COND FALSE !(!cond) [L603] RET assume_abort_if_not(var_1_59 >= 62) [L604] CALL assume_abort_if_not(var_1_59 <= 126) [L20] COND FALSE !(!cond) [L604] RET assume_abort_if_not(var_1_59 <= 126) [L605] var_1_63 = __VERIFIER_nondet_uchar() [L606] CALL assume_abort_if_not(var_1_63 >= 127) [L20] COND FALSE !(!cond) [L606] RET assume_abort_if_not(var_1_63 >= 127) [L607] CALL assume_abort_if_not(var_1_63 <= 255) [L20] COND FALSE !(!cond) [L607] RET assume_abort_if_not(var_1_63 <= 255) [L608] var_1_64 = __VERIFIER_nondet_char() [L609] CALL assume_abort_if_not(var_1_64 >= -127) [L20] COND FALSE !(!cond) [L609] RET assume_abort_if_not(var_1_64 >= -127) [L610] CALL assume_abort_if_not(var_1_64 <= 126) [L20] COND FALSE !(!cond) [L610] RET assume_abort_if_not(var_1_64 <= 126) [L611] var_1_65 = __VERIFIER_nondet_char() [L612] CALL assume_abort_if_not(var_1_65 >= -15) [L20] COND FALSE !(!cond) [L612] RET assume_abort_if_not(var_1_65 >= -15) [L613] CALL assume_abort_if_not(var_1_65 <= 16) [L20] COND FALSE !(!cond) [L613] RET assume_abort_if_not(var_1_65 <= 16) [L614] var_1_66 = __VERIFIER_nondet_char() [L615] CALL assume_abort_if_not(var_1_66 >= 0) [L20] COND FALSE !(!cond) [L615] RET assume_abort_if_not(var_1_66 >= 0) [L616] CALL assume_abort_if_not(var_1_66 <= 126) [L20] COND FALSE !(!cond) [L616] RET assume_abort_if_not(var_1_66 <= 126) [L617] var_1_68 = __VERIFIER_nondet_long() [L618] CALL assume_abort_if_not(var_1_68 >= 1073741822) [L20] COND FALSE !(!cond) [L618] RET assume_abort_if_not(var_1_68 >= 1073741822) [L619] CALL assume_abort_if_not(var_1_68 <= 2147483646) [L20] COND FALSE !(!cond) [L619] RET assume_abort_if_not(var_1_68 <= 2147483646) [L620] var_1_81 = __VERIFIER_nondet_char() [L621] CALL assume_abort_if_not(var_1_81 >= 0) [L20] COND FALSE !(!cond) [L621] RET assume_abort_if_not(var_1_81 >= 0) [L622] CALL assume_abort_if_not(var_1_81 <= 63) [L20] COND FALSE !(!cond) [L622] RET assume_abort_if_not(var_1_81 <= 63) [L623] var_1_83 = __VERIFIER_nondet_uchar() [L624] CALL assume_abort_if_not(var_1_83 >= 1) [L20] COND FALSE !(!cond) [L624] RET assume_abort_if_not(var_1_83 >= 1) [L625] CALL assume_abort_if_not(var_1_83 <= 1) [L20] COND FALSE !(!cond) [L625] RET assume_abort_if_not(var_1_83 <= 1) [L626] var_1_86 = __VERIFIER_nondet_uchar() [L627] CALL assume_abort_if_not(var_1_86 >= 127) [L20] COND FALSE !(!cond) [L627] RET assume_abort_if_not(var_1_86 >= 127) [L628] CALL assume_abort_if_not(var_1_86 <= 254) [L20] COND FALSE !(!cond) [L628] RET assume_abort_if_not(var_1_86 <= 254) [L629] var_1_87 = __VERIFIER_nondet_uchar() [L630] CALL assume_abort_if_not(var_1_87 >= 31) [L20] COND FALSE !(!cond) [L630] RET assume_abort_if_not(var_1_87 >= 31) [L631] CALL assume_abort_if_not(var_1_87 <= 64) [L20] COND FALSE !(!cond) [L631] RET assume_abort_if_not(var_1_87 <= 64) [L632] var_1_88 = __VERIFIER_nondet_uchar() [L633] CALL assume_abort_if_not(var_1_88 >= 32) [L20] COND FALSE !(!cond) [L633] RET assume_abort_if_not(var_1_88 >= 32) [L634] CALL assume_abort_if_not(var_1_88 <= 63) [L20] COND FALSE !(!cond) [L634] RET assume_abort_if_not(var_1_88 <= 63) [L635] var_1_91 = __VERIFIER_nondet_ushort() [L636] CALL assume_abort_if_not(var_1_91 >= 16383) [L20] COND FALSE !(!cond) [L636] RET assume_abort_if_not(var_1_91 >= 16383) [L637] CALL assume_abort_if_not(var_1_91 <= 32767) [L20] COND FALSE !(!cond) [L637] RET assume_abort_if_not(var_1_91 <= 32767) [L638] var_1_94 = __VERIFIER_nondet_long() [L639] CALL assume_abort_if_not(var_1_94 >= 1073741823) [L20] COND FALSE !(!cond) [L639] RET assume_abort_if_not(var_1_94 >= 1073741823) [L640] CALL assume_abort_if_not(var_1_94 <= 2147483646) [L20] COND FALSE !(!cond) [L640] RET assume_abort_if_not(var_1_94 <= 2147483646) [L641] var_1_96 = __VERIFIER_nondet_uchar() [L642] CALL assume_abort_if_not(var_1_96 >= 0) [L20] COND FALSE !(!cond) [L642] RET assume_abort_if_not(var_1_96 >= 0) [L643] CALL assume_abort_if_not(var_1_96 <= 0) [L20] COND FALSE !(!cond) [L643] RET assume_abort_if_not(var_1_96 <= 0) [L644] var_1_99 = __VERIFIER_nondet_uchar() [L645] CALL assume_abort_if_not(var_1_99 >= 190) [L20] COND FALSE !(!cond) [L645] RET assume_abort_if_not(var_1_99 >= 190) [L646] CALL assume_abort_if_not(var_1_99 <= 254) [L20] COND FALSE !(!cond) [L646] RET assume_abort_if_not(var_1_99 <= 254) [L647] var_1_100 = __VERIFIER_nondet_uchar() [L648] CALL assume_abort_if_not(var_1_100 >= 0) [L20] COND FALSE !(!cond) [L648] RET assume_abort_if_not(var_1_100 >= 0) [L649] CALL assume_abort_if_not(var_1_100 <= 31) [L20] COND FALSE !(!cond) [L649] RET assume_abort_if_not(var_1_100 <= 31) [L672] RET updateVariables() [L673] CALL step() [L137] COND TRUE var_1_24 >= last_1_var_1_56 [L138] var_1_85 = (var_1_86 - ((var_1_87 + var_1_88) - var_1_46)) [L144] COND TRUE (5.8 * var_1_21) < var_1_36 [L145] var_1_38 = ((((last_1_var_1_111) < ((var_1_10 + last_1_var_1_85))) ? (last_1_var_1_111) : ((var_1_10 + last_1_var_1_85)))) [L149] signed long int stepLocal_2 = (last_1_var_1_98 * last_1_var_1_80) + (last_1_var_1_1 * var_1_6); [L150] COND TRUE last_1_var_1_103 <= stepLocal_2 [L151] var_1_25 = (! var_1_27) [L163] COND FALSE !(\read(var_1_25)) [L166] var_1_104 = var_1_22 [L168] unsigned long int stepLocal_5 = var_1_40; [L169] COND FALSE !(stepLocal_5 == (var_1_4 * 32u)) [L172] var_1_43 = ((var_1_45 + (var_1_46 - var_1_47)) + var_1_48) [L174] COND FALSE !(\read(var_1_29)) [L177] var_1_49 = (var_1_47 + var_1_46) [L179] var_1_50 = var_1_20 [L180] var_1_52 = var_1_10 [L181] COND FALSE !(\read(var_1_29)) [L184] COND TRUE var_1_24 == var_1_17 [L185] var_1_67 = (((((var_1_39 - var_1_7)) > (-64)) ? ((var_1_39 - var_1_7)) : (-64))) [L189] unsigned long int stepLocal_12 = 2u + var_1_52; [L190] COND FALSE !(((var_1_59 / var_1_4) / var_1_41) >= stepLocal_12) [L193] var_1_71 = var_1_31 [L194] var_1_78 = (! var_1_31) [L195] signed char stepLocal_23 = var_1_46; [L196] unsigned short int stepLocal_22 = var_1_10; [L197] COND FALSE !(var_1_52 < stepLocal_23) [L204] COND FALSE !(((var_1_46 + -25) % var_1_59) <= -5) [L209] COND FALSE !(var_1_6 < (var_1_43 - 500)) [L216] var_1_89 = (var_1_47 - var_1_44) [L218] COND FALSE !(var_1_68 < var_1_40) [L221] unsigned char stepLocal_28 = var_1_71; [L222] COND TRUE var_1_78 || stepLocal_28 [L223] var_1_98 = (var_1_87 + 2) [L227] var_1_101 = var_1_19 [L228] COND TRUE \read(var_1_84) [L229] var_1_102 = var_1_24 [L233] COND FALSE !(\read(var_1_30)) [L236] COND TRUE \read(var_1_71) [L237] var_1_107 = var_1_81 [L239] var_1_108 = var_1_87 [L240] var_1_109 = 4 [L241] COND TRUE \read(var_1_71) [L242] var_1_110 = var_1_68 [L246] COND FALSE !(1u > var_1_98) [L249] COND FALSE !(((var_1_21 - var_1_23) + var_1_24) > var_1_16) [L254] var_1_53 = ((((var_1_54 - var_1_34) < 0 ) ? -(var_1_54 - var_1_34) : (var_1_54 - var_1_34))) [L256] COND TRUE \read(var_1_84) [L257] var_1_80 = (var_1_46 + (var_1_47 - var_1_81)) [L261] COND FALSE !(\read(var_1_29)) [L268] var_1_90 = ((((((var_1_91 - var_1_4)) > (((((var_1_98) < 0 ) ? -(var_1_98) : (var_1_98))))) ? ((var_1_91 - var_1_4)) : (((((var_1_98) < 0 ) ? -(var_1_98) : (var_1_98)))))) + var_1_88) [L269] COND FALSE !(\read(var_1_30)) [L272] var_1_111 = var_1_53 [L274] unsigned long int stepLocal_25 = var_1_41; [L275] unsigned char stepLocal_24 = var_1_90 > ((((var_1_45) < 0 ) ? -(var_1_45) : (var_1_45))); [L276] COND TRUE (var_1_98 > (var_1_65 & var_1_38)) || stepLocal_24 [L277] COND FALSE !(stepLocal_25 < var_1_46) [L283] unsigned char stepLocal_7 = var_1_53 == 1; [L284] COND FALSE !(var_1_29 || stepLocal_7) [L291] var_1_55 = (var_1_47 + var_1_4) [L293] COND FALSE !((var_1_63 - (var_1_46 + var_1_47)) > var_1_7) [L302] COND TRUE (var_1_45 / ((((var_1_59) < (var_1_6)) ? (var_1_59) : (var_1_6)))) < (var_1_111 * var_1_46) [L303] var_1_62 = (((var_1_65 + 10) + var_1_46) + (5 + var_1_47)) [L308] signed long int stepLocal_4 = var_1_6; [L309] unsigned char stepLocal_3 = var_1_106 < var_1_10; [L310] COND TRUE var_1_21 >= (var_1_42 / var_1_36) [L311] var_1_35 = ((var_1_24 - var_1_20) + var_1_19) [L333] unsigned short int stepLocal_9 = var_1_90; [L334] COND TRUE ((((var_1_34) > (var_1_85)) ? (var_1_34) : (var_1_85))) != stepLocal_9 [L335] var_1_57 = (var_1_58 - var_1_46) [L343] unsigned char stepLocal_11 = var_1_28; [L344] COND TRUE \read(var_1_27) [L345] COND FALSE !(stepLocal_11 || var_1_95) [L355] unsigned char stepLocal_19 = 2.5 <= var_1_18; [L356] COND TRUE stepLocal_19 || var_1_69 [L357] var_1_75 = ((var_1_30 || (! var_1_29)) && (var_1_27 && var_1_31)) [L359] COND TRUE \read(var_1_75) [L360] var_1_103 = var_1_87 [L364] COND TRUE \read(var_1_75) [L365] var_1_105 = var_1_7 [L369] COND FALSE !(((((var_1_86) < 0 ) ? -(var_1_86) : (var_1_86))) <= var_1_92) [L372] COND TRUE \read(var_1_31) [L373] COND TRUE var_1_100 >= (var_1_55 / var_1_87) [L374] var_1_112 = var_1_99 [L382] unsigned long int stepLocal_27 = var_1_34; [L383] COND FALSE !(stepLocal_27 <= last_1_var_1_97) [L386] signed long int stepLocal_1 = (((-256) > ((var_1_49 / var_1_6))) ? (-256) : ((var_1_49 / var_1_6))); [L387] signed char stepLocal_0 = var_1_49; [L388] COND FALSE !((var_1_89 / (8 + var_1_4)) > stepLocal_1) [L395] var_1_1 = ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) [L397] COND FALSE !(var_1_7 < (var_1_10 - var_1_112)) [L414] COND TRUE var_1_111 >= var_1_103 [L415] COND TRUE \read(var_1_27) [L416] var_1_32 = ((var_1_55 + var_1_7) + (var_1_34 - var_1_85)) [L419] COND FALSE !(\read(var_1_78)) [L426] unsigned short int stepLocal_6 = var_1_10; [L427] COND FALSE !(! var_1_27) [L436] var_1_51 = var_1_24 [L438] COND FALSE !(((((var_1_9) < ((var_1_18 * var_1_14))) ? (var_1_9) : ((var_1_18 * var_1_14)))) <= var_1_70) [L445] var_1_74 = var_1_58 [L447] unsigned long int stepLocal_21 = var_1_53; [L448] unsigned char stepLocal_20 = var_1_34 < var_1_53; [L449] COND FALSE !(stepLocal_21 < var_1_103) [L456] var_1_76 = 32 [L458] unsigned char stepLocal_26 = var_1_28; [L459] COND FALSE !(var_1_24 <= var_1_70) [L472] var_1_93 = (((((((((var_1_85 - var_1_7)) < (var_1_48)) ? ((var_1_85 - var_1_7)) : (var_1_48)))) < (-100000)) ? ((((((var_1_85 - var_1_7)) < (var_1_48)) ? ((var_1_85 - var_1_7)) : (var_1_48)))) : (-100000))) [L474] signed long int stepLocal_18 = var_1_97; [L475] signed long int stepLocal_17 = -4; [L476] unsigned char stepLocal_16 = var_1_25; [L477] unsigned char stepLocal_15 = var_1_29; [L478] COND FALSE !(var_1_31 && stepLocal_16) [L489] COND FALSE !(last_1_var_1_73 < stepLocal_17) [L492] var_1_73 = var_1_64 [L495] unsigned char stepLocal_14 = var_1_28; [L496] unsigned char stepLocal_13 = var_1_22 <= var_1_16; [L497] COND FALSE !((var_1_74 >= var_1_48) && stepLocal_14) [L500] COND TRUE var_1_82 && stepLocal_13 [L501] var_1_72 = (var_1_79 + ((((((((var_1_44) > (var_1_4)) ? (var_1_44) : (var_1_4)))) > (var_1_59)) ? (((((var_1_44) > (var_1_4)) ? (var_1_44) : (var_1_4)))) : (var_1_59)))) [L504] unsigned long int stepLocal_10 = ((((var_1_4) > (var_1_40)) ? (var_1_4) : (var_1_40))) / var_1_7; [L505] COND TRUE ((var_1_38 >> var_1_48) + var_1_10) >= stepLocal_10 [L506] var_1_60 = (var_1_58 + (var_1_4 - var_1_47)) [L510] signed short int stepLocal_8 = var_1_60; [L511] COND FALSE !(8 <= stepLocal_8) [L673] RET step() [L674] CALL, EXPR property() [L664-L665] return (((((((((((((((((((((((((((((((((((((((((((((((((((((((var_1_89 / (8 + var_1_4)) > ((((-256) > ((var_1_49 / var_1_6))) ? (-256) : ((var_1_49 / var_1_6))))) ? ((var_1_4 != var_1_49) ? (var_1_1 == ((unsigned short int) ((((var_1_4) < ((var_1_7 - ((((var_1_89) < (var_1_112)) ? (var_1_89) : (var_1_112)))))) ? (var_1_4) : ((var_1_7 - ((((var_1_89) < (var_1_112)) ? (var_1_89) : (var_1_112))))))))) : (var_1_1 == ((unsigned short int) ((((var_1_7) < ((var_1_4 + var_1_89))) ? (var_1_7) : ((var_1_4 + var_1_89))))))) : (var_1_1 == ((unsigned short int) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)))))) && ((var_1_7 < (var_1_10 - var_1_112)) ? ((var_1_85 > var_1_112) ? ((((((var_1_43) < (var_1_10)) ? (var_1_43) : (var_1_10))) < (((((10000) > (var_1_110)) ? (10000) : (var_1_110))) - var_1_112)) ? ((((((var_1_42) > (var_1_102)) ? (var_1_42) : (var_1_102))) != var_1_104) ? ((var_1_112 >= (var_1_7 * var_1_4)) ? (var_1_9 == ((double) ((((((((var_1_14) > (((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))) ? (var_1_14) : (((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) < (((var_1_16 + var_1_17) + (var_1_18 + var_1_19)))) ? (((((var_1_14) > (((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))) ? (var_1_14) : (((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (((var_1_16 + var_1_17) + (var_1_18 + var_1_19))))))) : 1) : (var_1_9 == ((double) ((7.2043630626503014E18 - var_1_20) - ((((var_1_21) < ((7.8120422756997018E18 - var_1_22))) ? (var_1_21) : ((7.8120422756997018E18 - var_1_22)))))))) : (var_1_9 == ((double) (((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19))) + ((var_1_23 + var_1_24) - var_1_20))))) : (var_1_9 == ((double) ((((var_1_16) > (var_1_24)) ? (var_1_16) : (var_1_24)))))) : 1)) && ((last_1_var_1_103 <= ((last_1_var_1_98 * last_1_var_1_80) + (last_1_var_1_1 * var_1_6))) ? (var_1_25 == ((unsigned char) (! var_1_27))) : (((last_1_var_1_42 * (var_1_24 - var_1_23)) >= ((((var_1_20) > (var_1_22)) ? (var_1_20) : (var_1_22)))) ? (var_1_27 ? (var_1_25 == ((unsigned char) ((var_1_28 || var_1_29) || var_1_30))) : (var_1_25 == ((unsigned char) ((! var_1_29) || var_1_31)))) : (var_1_25 == ((unsigned char) var_1_31))))) && ((var_1_111 >= var_1_103) ? (var_1_27 ? (var_1_32 == ((unsigned long int) ((var_1_55 + var_1_7) + (var_1_34 - var_1_85)))) : 1) : 1)) && ((var_1_21 >= (var_1_42 / var_1_36)) ? (var_1_35 == ((double) ((var_1_24 - var_1_20) + var_1_19))) : (((var_1_106 < var_1_10) && var_1_25) ? (var_1_35 == ((double) (var_1_20 - 999.3))) : ((var_1_52 < var_1_6) ? (var_1_27 ? (var_1_35 == ((double) ((((var_1_17) > (var_1_15)) ? (var_1_17) : (var_1_15))))) : ((var_1_101 > var_1_21) ? ((var_1_14 == var_1_42) ? (var_1_35 == ((double) (var_1_17 + (((((var_1_19 + var_1_23)) > (var_1_16)) ? ((var_1_19 + var_1_23)) : (var_1_16)))))) : 1) : (var_1_35 == ((double) (((((var_1_17) < 0 ) ? -(var_1_17) : (var_1_17))) + var_1_19))))) : (var_1_35 == ((double) ((((var_1_23) < ((var_1_19 + var_1_22))) ? (var_1_23) : ((var_1_19 + var_1_22)))))))))) && (var_1_78 ? (var_1_30 ? (var_1_37 == ((unsigned short int) var_1_112)) : (var_1_37 == ((unsigned short int) var_1_112))) : 1)) && (((5.8 * var_1_21) < var_1_36) ? (var_1_38 == ((unsigned long int) ((((last_1_var_1_111) < ((var_1_10 + last_1_var_1_85))) ? (last_1_var_1_111) : ((var_1_10 + last_1_var_1_85)))))) : (var_1_38 == ((unsigned long int) ((var_1_34 + (var_1_39 + var_1_40)) - (var_1_41 - last_1_var_1_111)))))) && ((1u > var_1_98) ? (var_1_42 == ((float) ((((var_1_21) < ((63.4f + ((((var_1_24) > (var_1_17)) ? (var_1_24) : (var_1_17)))))) ? (var_1_21) : ((63.4f + ((((var_1_24) > (var_1_17)) ? (var_1_24) : (var_1_17))))))))) : 1)) && ((var_1_40 == (var_1_4 * 32u)) ? (var_1_43 == ((signed char) ((((var_1_44 - 8) < 0 ) ? -(var_1_44 - 8) : (var_1_44 - 8))))) : (var_1_43 == ((signed char) ((var_1_45 + (var_1_46 - var_1_47)) + var_1_48))))) && (var_1_29 ? (var_1_49 == ((signed char) ((((var_1_47) > (var_1_46)) ? (var_1_47) : (var_1_46))))) : (var_1_49 == ((signed char) (var_1_47 + var_1_46))))) && (var_1_50 == ((double) var_1_20))) && ((! var_1_27) ? ((var_1_18 < ((((var_1_16) < (var_1_21)) ? (var_1_16) : (var_1_21)))) ? (var_1_51 == ((float) ((((((((10.625f) > (((((var_1_16) > (var_1_23)) ? (var_1_16) : (var_1_23))))) ? (10.625f) : (((((var_1_16) > (var_1_23)) ? (var_1_16) : (var_1_23))))))) > (var_1_21)) ? (((((10.625f) > (((((var_1_16) > (var_1_23)) ? (var_1_16) : (var_1_23))))) ? (10.625f) : (((((var_1_16) > (var_1_23)) ? (var_1_16) : (var_1_23))))))) : (var_1_21))))) : ((var_1_112 >= var_1_10) ? (var_1_51 == ((float) 2.275f)) : 1)) : (var_1_51 == ((float) var_1_24)))) && (var_1_52 == ((signed long int) var_1_10))) && ((((var_1_21 - var_1_23) + var_1_24) > var_1_16) ? ((var_1_101 < (var_1_22 + (49.25 * var_1_24))) ? (var_1_53 == ((unsigned long int) (var_1_34 + var_1_39))) : 1) : (var_1_53 == ((unsigned long int) ((((var_1_54 - var_1_34) < 0 ) ? -(var_1_54 - var_1_34) : (var_1_54 - var_1_34))))))) && ((var_1_29 || (var_1_53 == 1)) ? ((((var_1_22 + var_1_20) - var_1_24) != var_1_104) ? (var_1_55 == ((unsigned short int) ((((((((var_1_47) < 0 ) ? -(var_1_47) : (var_1_47))) + var_1_46) < 0 ) ? -(((((var_1_47) < 0 ) ? -(var_1_47) : (var_1_47))) + var_1_46) : (((((var_1_47) < 0 ) ? -(var_1_47) : (var_1_47))) + var_1_46))))) : (var_1_55 == ((unsigned short int) (var_1_7 - var_1_47)))) : (var_1_55 == ((unsigned short int) (var_1_47 + var_1_4))))) && ((8 <= var_1_60) ? (var_1_56 == ((double) ((7.146383286658302E18 - ((((var_1_22) > (var_1_20)) ? (var_1_22) : (var_1_20)))) - var_1_23))) : 1)) && ((((((var_1_34) > (var_1_85)) ? (var_1_34) : (var_1_85))) != var_1_90) ? (var_1_57 == ((signed char) (var_1_58 - var_1_46))) : ((var_1_21 <= var_1_70) ? (var_1_57 == ((signed char) ((((var_1_58) < 0 ) ? -(var_1_58) : (var_1_58))))) : (var_1_57 == ((signed char) ((var_1_59 - var_1_46) - var_1_44)))))) && ((((var_1_38 >> var_1_48) + var_1_10) >= (((((var_1_4) > (var_1_40)) ? (var_1_4) : (var_1_40))) / var_1_7)) ? (var_1_60 == ((signed short int) (var_1_58 + (var_1_4 - var_1_47)))) : (var_1_60 == ((signed short int) (var_1_73 + 5))))) && (var_1_29 ? (var_1_61 == ((signed short int) var_1_44)) : 1)) && (((var_1_63 - (var_1_46 + var_1_47)) > var_1_7) ? (((- (var_1_101 / var_1_36)) != var_1_104) ? ((var_1_44 < var_1_90) ? (var_1_62 == ((signed char) ((((((((var_1_59) > (var_1_45)) ? (var_1_59) : (var_1_45)))) < (var_1_46)) ? (((((var_1_59) > (var_1_45)) ? (var_1_59) : (var_1_45)))) : (var_1_46))))) : (var_1_62 == ((signed char) (((((var_1_44 - var_1_46)) > (var_1_64)) ? ((var_1_44 - var_1_46)) : (var_1_64)))))) : 1) : (((var_1_45 / ((((var_1_59) < (var_1_6)) ? (var_1_59) : (var_1_6)))) < (var_1_111 * var_1_46)) ? (var_1_62 == ((signed char) (((var_1_65 + 10) + var_1_46) + (5 + var_1_47)))) : (var_1_62 == ((signed char) ((((var_1_64) < ((var_1_58 - var_1_66))) ? (var_1_64) : ((var_1_58 - var_1_66))))))))) && ((var_1_24 == var_1_17) ? (var_1_67 == ((signed long int) (((((var_1_39 - var_1_7)) > (-64)) ? ((var_1_39 - var_1_7)) : (-64))))) : (var_1_67 == ((signed long int) ((var_1_68 - 200) - var_1_59))))) && (var_1_27 ? ((var_1_28 || var_1_95) ? ((var_1_20 != var_1_23) ? (var_1_69 == ((unsigned char) (var_1_28 || (var_1_30 || var_1_29)))) : (var_1_69 == ((unsigned char) (((var_1_68 / var_1_4) != var_1_90) || (var_1_28 || var_1_31))))) : 1) : (var_1_69 == ((unsigned char) (var_1_30 && var_1_28))))) && ((((var_1_59 / var_1_4) / var_1_41) >= (2u + var_1_52)) ? (var_1_70 == ((float) ((((199.6f) < (0.4f)) ? (199.6f) : (0.4f))))) : 1)) && (var_1_71 == ((unsigned char) var_1_31))) && (((var_1_74 >= var_1_48) && var_1_28) ? (var_1_72 == ((unsigned short int) ((((var_1_59) < 0 ) ? -(var_1_59) : (var_1_59))))) : ((var_1_82 && (var_1_22 <= var_1_16)) ? (var_1_72 == ((unsigned short int) (var_1_79 + ((((((((var_1_44) > (var_1_4)) ? (var_1_44) : (var_1_4)))) > (var_1_59)) ? (((((var_1_44) > (var_1_4)) ? (var_1_44) : (var_1_4)))) : (var_1_59)))))) : 1))) && ((var_1_31 && var_1_25) ? ((var_1_97 == (var_1_39 | (var_1_7 - var_1_44))) ? (var_1_73 == ((signed char) ((((var_1_44) < 0 ) ? -(var_1_44) : (var_1_44))))) : ((var_1_29 || (var_1_22 == var_1_42)) ? (var_1_73 == ((signed char) (((((((((var_1_47) > (var_1_46)) ? (var_1_47) : (var_1_46)))) > (var_1_65)) ? (((((var_1_47) > (var_1_46)) ? (var_1_47) : (var_1_46)))) : (var_1_65))) + var_1_48))) : (var_1_73 == ((signed char) (16 - (var_1_46 + var_1_47)))))) : ((last_1_var_1_73 < -4) ? (var_1_73 == ((signed char) ((((var_1_45) < 0 ) ? -(var_1_45) : (var_1_45))))) : (var_1_73 == ((signed char) var_1_64))))) && ((((((var_1_9) < ((var_1_18 * var_1_14))) ? (var_1_9) : ((var_1_18 * var_1_14)))) <= var_1_70) ? ((var_1_39 < (((((var_1_112 * var_1_111)) > (32u)) ? ((var_1_112 * var_1_111)) : (32u)))) ? (var_1_74 == ((signed long int) (((((var_1_59 + (-2 + var_1_45))) > (var_1_46)) ? ((var_1_59 + (-2 + var_1_45))) : (var_1_46))))) : (var_1_74 == ((signed long int) var_1_112))) : (var_1_74 == ((signed long int) var_1_58)))) && (((2.5 <= var_1_18) || var_1_69) ? (var_1_75 == ((unsigned char) ((var_1_30 || (! var_1_29)) && (var_1_27 && var_1_31)))) : 1)) && ((var_1_53 < var_1_103) ? ((var_1_42 < var_1_17) ? ((var_1_71 && (var_1_34 < var_1_53)) ? (var_1_76 == ((signed long int) (var_1_63 - var_1_90))) : 1) : 1) : (var_1_76 == ((signed long int) 32)))) && (var_1_78 == ((unsigned char) (! var_1_31)))) && ((var_1_52 < var_1_46) ? ((var_1_10 != var_1_47) ? (var_1_79 == ((unsigned long int) (((((var_1_54 - var_1_47)) > (((((var_1_59) < 0 ) ? -(var_1_59) : (var_1_59))))) ? ((var_1_54 - var_1_47)) : (((((var_1_59) < 0 ) ? -(var_1_59) : (var_1_59)))))))) : (var_1_79 == ((unsigned long int) (var_1_54 - (var_1_4 + var_1_46))))) : 1)) && (var_1_84 ? (var_1_80 == ((signed char) (var_1_46 + (var_1_47 - var_1_81)))) : (var_1_80 == ((signed char) var_1_81)))) && (var_1_29 ? ((var_1_63 < (var_1_38 + var_1_10)) ? (var_1_82 == ((unsigned char) 0)) : (var_1_82 == ((unsigned char) (((var_1_84 || var_1_31) && var_1_27) && var_1_83)))) : 1)) && ((((var_1_46 + -25) % var_1_59) <= -5) ? ((var_1_31 || (! var_1_30)) ? (var_1_84 == ((unsigned char) (! 1))) : 1) : 1)) && ((var_1_24 >= last_1_var_1_56) ? (var_1_85 == ((unsigned char) (var_1_86 - ((var_1_87 + var_1_88) - var_1_46)))) : (var_1_29 ? (var_1_85 == ((unsigned char) ((((var_1_81) < (var_1_66)) ? (var_1_81) : (var_1_66))))) : 1))) && ((var_1_6 < (var_1_43 - 500)) ? (var_1_71 ? (var_1_89 == ((signed char) ((((((var_1_81 - var_1_47) + var_1_46)) < ((var_1_44 - ((((var_1_88) > (var_1_87)) ? (var_1_88) : (var_1_87)))))) ? (((var_1_81 - var_1_47) + var_1_46)) : ((var_1_44 - ((((var_1_88) > (var_1_87)) ? (var_1_88) : (var_1_87))))))))) : (var_1_89 == ((signed char) var_1_58))) : (var_1_89 == ((signed char) (var_1_47 - var_1_44))))) && (var_1_90 == ((unsigned short int) ((((((var_1_91 - var_1_4)) > (((((var_1_98) < 0 ) ? -(var_1_98) : (var_1_98))))) ? ((var_1_91 - var_1_4)) : (((((var_1_98) < 0 ) ? -(var_1_98) : (var_1_98)))))) + var_1_88)))) && (((var_1_98 > (var_1_65 & var_1_38)) || (var_1_90 > ((((var_1_45) < 0 ) ? -(var_1_45) : (var_1_45))))) ? ((var_1_41 < var_1_46) ? (var_1_92 == ((signed long int) ((((var_1_7 - var_1_98) < 0 ) ? -(var_1_7 - var_1_98) : (var_1_7 - var_1_98))))) : 1) : (var_1_92 == ((signed long int) (4 + var_1_85))))) && ((var_1_24 <= var_1_70) ? (var_1_95 ? ((! (var_1_14 <= var_1_16)) ? (var_1_93 == ((signed long int) ((((((((var_1_32) < 0 ) ? -(var_1_32) : (var_1_32)))) < (var_1_79)) ? (((((var_1_32) < 0 ) ? -(var_1_32) : (var_1_32)))) : (var_1_79))))) : 1) : ((var_1_75 && var_1_28) ? (var_1_93 == ((signed long int) (var_1_105 + var_1_103))) : (var_1_93 == ((signed long int) ((((((((var_1_92) < 0 ) ? -(var_1_92) : (var_1_92))) < 0 ) ? -((((var_1_92) < 0 ) ? -(var_1_92) : (var_1_92))) : ((((var_1_92) < 0 ) ? -(var_1_92) : (var_1_92))))) - (var_1_94 - 128)))))) : (var_1_93 == ((signed long int) (((((((((var_1_85 - var_1_7)) < (var_1_48)) ? ((var_1_85 - var_1_7)) : (var_1_48)))) < (-100000)) ? ((((((var_1_85 - var_1_7)) < (var_1_48)) ? ((var_1_85 - var_1_7)) : (var_1_48)))) : (-100000))))))) && ((var_1_68 < var_1_40) ? (var_1_95 == ((unsigned char) (((var_1_46 - var_1_91) != (var_1_41 / var_1_7)) || (! var_1_96)))) : 1)) && ((var_1_34 <= last_1_var_1_97) ? (var_1_97 == ((signed long int) ((var_1_112 - (var_1_59 + var_1_81)) + var_1_62))) : 1)) && ((var_1_78 || var_1_71) ? (var_1_98 == ((unsigned char) (var_1_87 + 2))) : (var_1_98 == ((unsigned char) ((var_1_99 - (var_1_88 - var_1_100)) - var_1_66))))) && (var_1_101 == ((float) var_1_19))) && (var_1_84 ? (var_1_102 == ((float) var_1_24)) : (var_1_102 == ((float) var_1_17)))) && (var_1_75 ? (var_1_103 == ((unsigned long int) var_1_87)) : (var_1_103 == ((unsigned long int) var_1_41)))) && (var_1_25 ? (var_1_104 == ((float) 15.5f)) : (var_1_104 == ((float) var_1_22)))) && (var_1_75 ? (var_1_105 == ((unsigned short int) var_1_7)) : (var_1_105 == ((unsigned short int) var_1_59)))) && (var_1_30 ? (var_1_106 == ((signed char) var_1_46)) : 1)) && (var_1_71 ? (var_1_107 == ((signed short int) var_1_81)) : 1)) && (var_1_108 == ((unsigned long int) var_1_87))) && (var_1_109 == ((signed char) 4))) && (var_1_71 ? (var_1_110 == ((unsigned long int) var_1_68)) : (var_1_110 == ((unsigned long int) var_1_54)))) && (var_1_30 ? (var_1_111 == ((unsigned long int) var_1_99)) : (var_1_111 == ((unsigned long int) var_1_53)))) && ((((((var_1_86) < 0 ) ? -(var_1_86) : (var_1_86))) <= var_1_92) ? (var_1_112 == ((unsigned char) ((((var_1_81) < 0 ) ? -(var_1_81) : (var_1_81))))) : (var_1_31 ? ((var_1_100 >= (var_1_55 / var_1_87)) ? (var_1_112 == ((unsigned char) var_1_99)) : (var_1_112 == ((unsigned char) 2))) : (var_1_112 == ((unsigned char) 5)))) ; [L674] RET, EXPR property() [L674] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 259 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 136.0s, OverallIterations: 25, TraceHistogramMax: 86, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 47.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20715 SdHoareTripleChecker+Valid, 21.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20169 mSDsluCounter, 37570 SdHoareTripleChecker+Invalid, 18.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25772 mSDsCounter, 6200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20896 IncrementalHoareTripleChecker+Invalid, 27096 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6200 mSolverCounterUnsat, 11798 mSDtfsCounter, 20896 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19926 GetRequests, 19573 SyntacticMatches, 7 SemanticMatches, 346 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3978 ImplicationChecksByTransitivity, 17.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46182occurred in iteration=18, InterpolantAutomatonStates: 292, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 18.8s AutomataMinimizationTime, 24 MinimizatonAttempts, 32209 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.8s SsaConstructionTime, 7.8s SatisfiabilityAnalysisTime, 48.6s InterpolantComputationTime, 14501 NumberOfCodeBlocks, 14501 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 19493 ConstructedInterpolants, 0 QuantifiedInterpolants, 76264 SizeOfPredicates, 97 NumberOfNonLiveVariables, 31715 ConjunctsInSsa, 246 ConjunctsInUnsatCore, 35 InterpolantComputations, 12 PerfectInterpolantSequences, 506825/511700 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-21 00:59:46,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...