/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-78.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 01:06:30,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 01:06:30,908 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 01:06:30,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 01:06:30,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 01:06:30,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 01:06:30,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 01:06:30,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 01:06:30,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 01:06:30,947 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 01:06:30,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 01:06:30,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 01:06:30,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 01:06:30,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 01:06:30,950 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 01:06:30,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 01:06:30,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 01:06:30,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 01:06:30,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 01:06:30,952 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 01:06:30,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 01:06:30,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 01:06:30,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 01:06:30,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 01:06:30,953 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 01:06:30,953 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 01:06:30,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 01:06:30,953 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 01:06:30,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 01:06:30,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 01:06:30,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 01:06:30,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 01:06:30,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:06:30,956 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 01:06:30,956 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 01:06:30,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 01:06:30,956 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 01:06:30,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 01:06:30,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 01:06:30,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 01:06:30,957 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 01:06:30,957 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 01:06:30,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 01:06:30,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 01:06:31,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 01:06:31,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 01:06:31,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 01:06:31,215 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 01:06:31,215 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 01:06:31,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-78.i [2023-12-21 01:06:32,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 01:06:32,643 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 01:06:32,643 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-78.i [2023-12-21 01:06:32,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e9e3e51/467d1255cf1745f8ad6962e19d24dba0/FLAGb684a1a1c [2023-12-21 01:06:32,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e9e3e51/467d1255cf1745f8ad6962e19d24dba0 [2023-12-21 01:06:32,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 01:06:32,670 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 01:06:32,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 01:06:32,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 01:06:32,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 01:06:32,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:06:32" (1/1) ... [2023-12-21 01:06:32,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b38c855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:32, skipping insertion in model container [2023-12-21 01:06:32,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:06:32" (1/1) ... [2023-12-21 01:06:32,735 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 01:06:32,886 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-78.i[916,929] [2023-12-21 01:06:33,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:06:33,141 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 01:06:33,152 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-78.i[916,929] [2023-12-21 01:06:33,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:06:33,283 INFO L206 MainTranslator]: Completed translation [2023-12-21 01:06:33,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33 WrapperNode [2023-12-21 01:06:33,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 01:06:33,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 01:06:33,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 01:06:33,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 01:06:33,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,409 INFO L138 Inliner]: procedures = 26, calls = 81, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 680 [2023-12-21 01:06:33,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 01:06:33,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 01:06:33,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 01:06:33,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 01:06:33,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,526 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 01:06:33,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 01:06:33,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 01:06:33,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 01:06:33,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 01:06:33,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (1/1) ... [2023-12-21 01:06:33,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:06:33,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:33,647 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 01:06:33,664 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 01:06:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 01:06:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 01:06:33,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 01:06:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 01:06:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 01:06:33,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 01:06:33,830 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 01:06:33,832 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 01:06:34,895 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 01:06:34,951 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 01:06:34,951 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 01:06:34,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:06:34 BoogieIcfgContainer [2023-12-21 01:06:34,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 01:06:34,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 01:06:34,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 01:06:34,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 01:06:34,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:06:32" (1/3) ... [2023-12-21 01:06:34,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d73de17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:06:34, skipping insertion in model container [2023-12-21 01:06:34,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:33" (2/3) ... [2023-12-21 01:06:34,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d73de17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:06:34, skipping insertion in model container [2023-12-21 01:06:34,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:06:34" (3/3) ... [2023-12-21 01:06:34,961 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-78.i [2023-12-21 01:06:34,977 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 01:06:34,977 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 01:06:35,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 01:06:35,044 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;@54960b4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 01:06:35,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 01:06:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 247 states, 176 states have (on average 1.5511363636363635) internal successors, (273), 177 states have internal predecessors, (273), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 01:06:35,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-21 01:06:35,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:35,089 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:35,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:35,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:35,094 INFO L85 PathProgramCache]: Analyzing trace with hash -12125318, now seen corresponding path program 1 times [2023-12-21 01:06:35,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:35,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965210482] [2023-12-21 01:06:35,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:35,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:35,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:35,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129228444] [2023-12-21 01:06:35,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:35,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:35,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:35,463 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 01:06:35,467 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 01:06:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:35,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 01:06:35,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:39,685 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:06:39,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:06:39,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:06:39,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965210482] [2023-12-21 01:06:39,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:06:39,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129228444] [2023-12-21 01:06:39,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129228444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:06:39,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:06:39,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:06:39,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338173513] [2023-12-21 01:06:39,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:06:39,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:06:39,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:06:39,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:06:39,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:06:39,735 INFO L87 Difference]: Start difference. First operand has 247 states, 176 states have (on average 1.5511363636363635) internal successors, (273), 177 states have internal predecessors, (273), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:39,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:06:39,900 INFO L93 Difference]: Finished difference Result 511 states and 913 transitions. [2023-12-21 01:06:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:06:39,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 464 [2023-12-21 01:06:39,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:06:39,914 INFO L225 Difference]: With dead ends: 511 [2023-12-21 01:06:39,915 INFO L226 Difference]: Without dead ends: 265 [2023-12-21 01:06:39,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 461 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 01:06:39,922 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 39 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:06:39,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1201 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:06:39,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-21 01:06:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2023-12-21 01:06:39,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 177 states have (on average 1.5254237288135593) internal successors, (270), 177 states have internal predecessors, (270), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 01:06:39,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 406 transitions. [2023-12-21 01:06:39,983 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 406 transitions. Word has length 464 [2023-12-21 01:06:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:06:39,989 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 406 transitions. [2023-12-21 01:06:39,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 406 transitions. [2023-12-21 01:06:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-21 01:06:39,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:39,999 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:40,016 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 01:06:40,210 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 01:06:40,211 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:40,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:40,213 INFO L85 PathProgramCache]: Analyzing trace with hash -821471944, now seen corresponding path program 1 times [2023-12-21 01:06:40,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:40,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175949071] [2023-12-21 01:06:40,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:40,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:40,349 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:40,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677275809] [2023-12-21 01:06:40,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:40,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:40,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:40,358 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 01:06:40,372 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 01:06:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:40,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 01:06:40,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:45,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:06:45,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:06:45,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:06:45,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175949071] [2023-12-21 01:06:45,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:06:45,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677275809] [2023-12-21 01:06:45,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677275809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:06:45,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:06:45,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:06:45,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442974708] [2023-12-21 01:06:45,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:06:45,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:06:45,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:06:45,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:06:45,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:06:45,408 INFO L87 Difference]: Start difference. First operand 247 states and 406 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:06:45,512 INFO L93 Difference]: Finished difference Result 509 states and 834 transitions. [2023-12-21 01:06:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:06:45,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 464 [2023-12-21 01:06:45,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:06:45,520 INFO L225 Difference]: With dead ends: 509 [2023-12-21 01:06:45,520 INFO L226 Difference]: Without dead ends: 263 [2023-12-21 01:06:45,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 461 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 01:06:45,522 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 30 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:06:45,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1198 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:06:45,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-12-21 01:06:45,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 249. [2023-12-21 01:06:45,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 179 states have (on average 1.5195530726256983) internal successors, (272), 179 states have internal predecessors, (272), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 01:06:45,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 408 transitions. [2023-12-21 01:06:45,561 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 408 transitions. Word has length 464 [2023-12-21 01:06:45,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:06:45,563 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 408 transitions. [2023-12-21 01:06:45,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:45,563 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 408 transitions. [2023-12-21 01:06:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-21 01:06:45,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:45,575 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:45,590 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 01:06:45,785 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 01:06:45,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:45,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:45,786 INFO L85 PathProgramCache]: Analyzing trace with hash -764213642, now seen corresponding path program 1 times [2023-12-21 01:06:45,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:45,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285411515] [2023-12-21 01:06:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:45,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:45,877 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:45,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755021183] [2023-12-21 01:06:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:45,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:45,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:45,879 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 01:06:45,901 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 01:06:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:46,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 01:06:46,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:06:46,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:06:46,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:06:46,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285411515] [2023-12-21 01:06:46,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:06:46,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755021183] [2023-12-21 01:06:46,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755021183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:06:46,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:06:46,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 01:06:46,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670461368] [2023-12-21 01:06:46,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:06:46,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 01:06:46,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:06:46,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 01:06:46,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:06:46,338 INFO L87 Difference]: Start difference. First operand 249 states and 408 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:46,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:06:46,460 INFO L93 Difference]: Finished difference Result 727 states and 1189 transitions. [2023-12-21 01:06:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 01:06:46,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 464 [2023-12-21 01:06:46,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:06:46,469 INFO L225 Difference]: With dead ends: 727 [2023-12-21 01:06:46,469 INFO L226 Difference]: Without dead ends: 479 [2023-12-21 01:06:46,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 462 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 01:06:46,473 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 346 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:06:46,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1090 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:06:46,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-12-21 01:06:46,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 340. [2023-12-21 01:06:46,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 270 states have (on average 1.5740740740740742) internal successors, (425), 270 states have internal predecessors, (425), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 01:06:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 561 transitions. [2023-12-21 01:06:46,511 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 561 transitions. Word has length 464 [2023-12-21 01:06:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:06:46,513 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 561 transitions. [2023-12-21 01:06:46,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 561 transitions. [2023-12-21 01:06:46,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-21 01:06:46,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:46,521 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:46,532 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 01:06:46,732 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 01:06:46,733 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:46,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:46,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1619711096, now seen corresponding path program 1 times [2023-12-21 01:06:46,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:46,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64428725] [2023-12-21 01:06:46,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:46,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:46,812 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:46,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153952202] [2023-12-21 01:06:46,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:46,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:46,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:46,814 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 01:06:46,815 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 01:06:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:47,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 01:06:47,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:48,298 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:06:48,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:06:48,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:06:48,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64428725] [2023-12-21 01:06:48,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:06:48,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153952202] [2023-12-21 01:06:48,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153952202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:06:48,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:06:48,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 01:06:48,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756001629] [2023-12-21 01:06:48,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:06:48,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:06:48,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:06:48,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:06:48,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:06:48,302 INFO L87 Difference]: Start difference. First operand 340 states and 561 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:48,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:06:48,417 INFO L93 Difference]: Finished difference Result 1000 states and 1650 transitions. [2023-12-21 01:06:48,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 01:06:48,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 464 [2023-12-21 01:06:48,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:06:48,422 INFO L225 Difference]: With dead ends: 1000 [2023-12-21 01:06:48,422 INFO L226 Difference]: Without dead ends: 661 [2023-12-21 01:06:48,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:06:48,425 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 209 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:06:48,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 1168 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:06:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-12-21 01:06:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 636. [2023-12-21 01:06:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 497 states have (on average 1.557344064386318) internal successors, (774), 497 states have internal predecessors, (774), 136 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2023-12-21 01:06:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1046 transitions. [2023-12-21 01:06:48,470 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1046 transitions. Word has length 464 [2023-12-21 01:06:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:06:48,471 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 1046 transitions. [2023-12-21 01:06:48,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:48,472 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1046 transitions. [2023-12-21 01:06:48,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-21 01:06:48,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:48,481 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:48,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 01:06:48,690 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 01:06:48,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:48,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:48,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2063611770, now seen corresponding path program 1 times [2023-12-21 01:06:48,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:48,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466655108] [2023-12-21 01:06:48,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:48,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:48,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:48,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050823482] [2023-12-21 01:06:48,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:48,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:48,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:48,752 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 01:06:48,756 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 01:06:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:49,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 01:06:49,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:06:49,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:06:49,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:06:49,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466655108] [2023-12-21 01:06:49,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:06:49,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050823482] [2023-12-21 01:06:49,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050823482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:06:49,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:06:49,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 01:06:49,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12084081] [2023-12-21 01:06:49,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:06:49,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 01:06:49,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:06:49,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 01:06:49,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:06:49,992 INFO L87 Difference]: Start difference. First operand 636 states and 1046 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:50,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:06:50,122 INFO L93 Difference]: Finished difference Result 1592 states and 2614 transitions. [2023-12-21 01:06:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 01:06:50,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 464 [2023-12-21 01:06:50,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:06:50,129 INFO L225 Difference]: With dead ends: 1592 [2023-12-21 01:06:50,129 INFO L226 Difference]: Without dead ends: 957 [2023-12-21 01:06:50,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 462 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 01:06:50,131 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 198 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:06:50,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 799 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:06:50,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2023-12-21 01:06:50,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 930. [2023-12-21 01:06:50,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 722 states have (on average 1.5415512465373962) internal successors, (1113), 722 states have internal predecessors, (1113), 204 states have call successors, (204), 3 states have call predecessors, (204), 3 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2023-12-21 01:06:50,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1521 transitions. [2023-12-21 01:06:50,193 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1521 transitions. Word has length 464 [2023-12-21 01:06:50,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:06:50,195 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1521 transitions. [2023-12-21 01:06:50,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1521 transitions. [2023-12-21 01:06:50,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2023-12-21 01:06:50,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:50,201 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:50,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-21 01:06:50,409 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 01:06:50,410 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:50,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1833381431, now seen corresponding path program 1 times [2023-12-21 01:06:50,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:50,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102682282] [2023-12-21 01:06:50,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:50,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:50,480 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:50,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2099598944] [2023-12-21 01:06:50,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:50,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:50,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:50,482 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 01:06:50,504 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 01:06:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:50,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 01:06:50,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:06:51,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:06:51,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:06:51,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102682282] [2023-12-21 01:06:51,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:06:51,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099598944] [2023-12-21 01:06:51,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099598944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:06:51,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:06:51,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 01:06:51,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586662232] [2023-12-21 01:06:51,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:06:51,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 01:06:51,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:06:51,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 01:06:51,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:06:51,040 INFO L87 Difference]: Start difference. First operand 930 states and 1521 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, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:51,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:06:51,141 INFO L93 Difference]: Finished difference Result 2200 states and 3611 transitions. [2023-12-21 01:06:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 01:06:51,142 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, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 465 [2023-12-21 01:06:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:06:51,151 INFO L225 Difference]: With dead ends: 2200 [2023-12-21 01:06:51,151 INFO L226 Difference]: Without dead ends: 1565 [2023-12-21 01:06:51,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 463 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 01:06:51,153 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 339 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:06:51,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 822 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:06:51,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2023-12-21 01:06:51,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1265. [2023-12-21 01:06:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 988 states have (on average 1.5445344129554657) internal successors, (1526), 988 states have internal predecessors, (1526), 272 states have call successors, (272), 4 states have call predecessors, (272), 4 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2023-12-21 01:06:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2070 transitions. [2023-12-21 01:06:51,229 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2070 transitions. Word has length 465 [2023-12-21 01:06:51,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:06:51,230 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2070 transitions. [2023-12-21 01:06:51,230 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, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:51,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2070 transitions. [2023-12-21 01:06:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2023-12-21 01:06:51,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:51,235 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:51,248 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 01:06:51,443 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 01:06:51,443 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:51,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:51,444 INFO L85 PathProgramCache]: Analyzing trace with hash -339340951, now seen corresponding path program 1 times [2023-12-21 01:06:51,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:51,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623315561] [2023-12-21 01:06:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:51,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:51,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:51,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098861543] [2023-12-21 01:06:51,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:51,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:51,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:51,502 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 01:06:51,540 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 01:06:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:51,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 01:06:51,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:52,153 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 4513 proven. 84 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2023-12-21 01:06:52,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:06:52,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 117 proven. 84 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2023-12-21 01:06:52,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:06:52,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623315561] [2023-12-21 01:06:52,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:06:52,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098861543] [2023-12-21 01:06:52,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098861543] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:06:52,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:06:52,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 01:06:52,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143438652] [2023-12-21 01:06:52,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:06:52,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:06:52,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:06:52,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:06:52,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:06:52,444 INFO L87 Difference]: Start difference. First operand 1265 states and 2070 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (96), 2 states have call predecessors, (96), 4 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2023-12-21 01:06:53,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:06:53,008 INFO L93 Difference]: Finished difference Result 2609 states and 4248 transitions. [2023-12-21 01:06:53,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:06:53,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (96), 2 states have call predecessors, (96), 4 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) Word has length 465 [2023-12-21 01:06:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:06:53,023 INFO L225 Difference]: With dead ends: 2609 [2023-12-21 01:06:53,023 INFO L226 Difference]: Without dead ends: 1345 [2023-12-21 01:06:53,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 932 GetRequests, 922 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:06:53,028 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 480 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 01:06:53,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 890 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 01:06:53,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2023-12-21 01:06:53,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1334. [2023-12-21 01:06:53,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1014 states have (on average 1.5128205128205128) internal successors, (1534), 1015 states have internal predecessors, (1534), 311 states have call successors, (311), 8 states have call predecessors, (311), 8 states have return successors, (311), 310 states have call predecessors, (311), 311 states have call successors, (311) [2023-12-21 01:06:53,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2156 transitions. [2023-12-21 01:06:53,106 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2156 transitions. Word has length 465 [2023-12-21 01:06:53,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:06:53,107 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2156 transitions. [2023-12-21 01:06:53,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (96), 2 states have call predecessors, (96), 4 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2023-12-21 01:06:53,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2156 transitions. [2023-12-21 01:06:53,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2023-12-21 01:06:53,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:53,111 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:53,128 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 01:06:53,320 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 01:06:53,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:53,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:53,321 INFO L85 PathProgramCache]: Analyzing trace with hash -756737557, now seen corresponding path program 1 times [2023-12-21 01:06:53,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:53,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269487383] [2023-12-21 01:06:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:53,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:53,396 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:53,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1471642034] [2023-12-21 01:06:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:53,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:53,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:53,404 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 01:06:53,406 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 01:06:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:53,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 01:06:53,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:06:53,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:06:53,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:06:53,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269487383] [2023-12-21 01:06:53,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:06:53,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471642034] [2023-12-21 01:06:53,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471642034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:06:53,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:06:53,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:06:53,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87136802] [2023-12-21 01:06:53,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:06:53,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:06:53,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:06:53,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:06:53,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:06:53,824 INFO L87 Difference]: Start difference. First operand 1334 states and 2156 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:54,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:06:54,210 INFO L93 Difference]: Finished difference Result 3057 states and 4925 transitions. [2023-12-21 01:06:54,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 01:06:54,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 465 [2023-12-21 01:06:54,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:06:54,219 INFO L225 Difference]: With dead ends: 3057 [2023-12-21 01:06:54,220 INFO L226 Difference]: Without dead ends: 1735 [2023-12-21 01:06:54,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 463 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 01:06:54,225 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 348 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:06:54,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1060 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:06:54,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2023-12-21 01:06:54,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1718. [2023-12-21 01:06:54,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 1317 states have (on average 1.5087319665907366) internal successors, (1987), 1320 states have internal predecessors, (1987), 389 states have call successors, (389), 11 states have call predecessors, (389), 11 states have return successors, (389), 386 states have call predecessors, (389), 389 states have call successors, (389) [2023-12-21 01:06:54,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2765 transitions. [2023-12-21 01:06:54,431 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2765 transitions. Word has length 465 [2023-12-21 01:06:54,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:06:54,432 INFO L495 AbstractCegarLoop]: Abstraction has 1718 states and 2765 transitions. [2023-12-21 01:06:54,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:54,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2765 transitions. [2023-12-21 01:06:54,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2023-12-21 01:06:54,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:54,436 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:54,445 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 01:06:54,645 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 01:06:54,646 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:54,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:54,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1432206236, now seen corresponding path program 1 times [2023-12-21 01:06:54,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:54,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21388456] [2023-12-21 01:06:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:54,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:54,705 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:54,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [458765215] [2023-12-21 01:06:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:54,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:54,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:54,707 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 01:06:54,732 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 01:06:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:55,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 01:06:55,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:55,152 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:06:55,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:06:55,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:06:55,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21388456] [2023-12-21 01:06:55,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:06:55,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458765215] [2023-12-21 01:06:55,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458765215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:06:55,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:06:55,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:06:55,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875497407] [2023-12-21 01:06:55,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:06:55,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:06:55,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:06:55,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:06:55,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:06:55,156 INFO L87 Difference]: Start difference. First operand 1718 states and 2765 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, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:55,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:06:55,495 INFO L93 Difference]: Finished difference Result 6088 states and 9806 transitions. [2023-12-21 01:06:55,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:06:55,495 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, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 466 [2023-12-21 01:06:55,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:06:55,517 INFO L225 Difference]: With dead ends: 6088 [2023-12-21 01:06:55,518 INFO L226 Difference]: Without dead ends: 4434 [2023-12-21 01:06:55,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 464 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 01:06:55,527 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 989 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:06:55,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 1529 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:06:55,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4434 states. [2023-12-21 01:06:55,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4434 to 4228. [2023-12-21 01:06:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4228 states, 3422 states have (on average 1.5286382232612508) internal successors, (5231), 3435 states have internal predecessors, (5231), 779 states have call successors, (779), 26 states have call predecessors, (779), 26 states have return successors, (779), 766 states have call predecessors, (779), 779 states have call successors, (779) [2023-12-21 01:06:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4228 states to 4228 states and 6789 transitions. [2023-12-21 01:06:55,768 INFO L78 Accepts]: Start accepts. Automaton has 4228 states and 6789 transitions. Word has length 466 [2023-12-21 01:06:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:06:55,769 INFO L495 AbstractCegarLoop]: Abstraction has 4228 states and 6789 transitions. [2023-12-21 01:06:55,769 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, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:06:55,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4228 states and 6789 transitions. [2023-12-21 01:06:55,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2023-12-21 01:06:55,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:06:55,777 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:55,792 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 01:06:55,986 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 01:06:55,986 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:06:55,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:06:55,987 INFO L85 PathProgramCache]: Analyzing trace with hash -988305562, now seen corresponding path program 1 times [2023-12-21 01:06:55,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:06:55,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186557800] [2023-12-21 01:06:55,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:55,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:06:56,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:06:56,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538882681] [2023-12-21 01:06:56,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:06:56,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:06:56,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:06:56,047 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 01:06:56,058 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 01:06:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:06:56,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-21 01:06:56,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:06:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 6001 proven. 246 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2023-12-21 01:06:57,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:07:01,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 699 proven. 276 refuted. 0 times theorem prover too weak. 8137 trivial. 0 not checked. [2023-12-21 01:07:01,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:07:01,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186557800] [2023-12-21 01:07:01,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:07:01,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538882681] [2023-12-21 01:07:01,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538882681] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:07:01,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:07:01,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2023-12-21 01:07:01,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107439254] [2023-12-21 01:07:01,103 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:07:01,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 01:07:01,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:07:01,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 01:07:01,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=808, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 01:07:01,105 INFO L87 Difference]: Start difference. First operand 4228 states and 6789 transitions. Second operand has 34 states, 33 states have (on average 6.606060606060606) internal successors, (218), 32 states have internal predecessors, (218), 11 states have call successors, (120), 6 states have call predecessors, (120), 15 states have return successors, (121), 11 states have call predecessors, (121), 11 states have call successors, (121) [2023-12-21 01:07:05,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:07:05,035 INFO L93 Difference]: Finished difference Result 15230 states and 24181 transitions. [2023-12-21 01:07:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-21 01:07:05,036 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.606060606060606) internal successors, (218), 32 states have internal predecessors, (218), 11 states have call successors, (120), 6 states have call predecessors, (120), 15 states have return successors, (121), 11 states have call predecessors, (121), 11 states have call successors, (121) Word has length 466 [2023-12-21 01:07:05,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:07:05,088 INFO L225 Difference]: With dead ends: 15230 [2023-12-21 01:07:05,088 INFO L226 Difference]: Without dead ends: 11070 [2023-12-21 01:07:05,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 952 GetRequests, 900 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=925, Invalid=1937, Unknown=0, NotChecked=0, Total=2862 [2023-12-21 01:07:05,107 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 2891 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2905 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 01:07:05,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2905 Valid, 2053 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 01:07:05,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2023-12-21 01:07:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 5790. [2023-12-21 01:07:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5790 states, 4838 states have (on average 1.5250103348491113) internal successors, (7378), 4857 states have internal predecessors, (7378), 863 states have call successors, (863), 88 states have call predecessors, (863), 88 states have return successors, (863), 844 states have call predecessors, (863), 863 states have call successors, (863) [2023-12-21 01:07:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5790 states to 5790 states and 9104 transitions. [2023-12-21 01:07:05,664 INFO L78 Accepts]: Start accepts. Automaton has 5790 states and 9104 transitions. Word has length 466 [2023-12-21 01:07:05,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:07:05,664 INFO L495 AbstractCegarLoop]: Abstraction has 5790 states and 9104 transitions. [2023-12-21 01:07:05,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.606060606060606) internal successors, (218), 32 states have internal predecessors, (218), 11 states have call successors, (120), 6 states have call predecessors, (120), 15 states have return successors, (121), 11 states have call predecessors, (121), 11 states have call successors, (121) [2023-12-21 01:07:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5790 states and 9104 transitions. [2023-12-21 01:07:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2023-12-21 01:07:05,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:07:05,685 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:05,695 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 01:07:05,895 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 01:07:05,895 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:07:05,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:07:05,896 INFO L85 PathProgramCache]: Analyzing trace with hash 920152228, now seen corresponding path program 1 times [2023-12-21 01:07:05,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:07:05,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413696868] [2023-12-21 01:07:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:07:05,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:07:05,963 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:07:05,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627681530] [2023-12-21 01:07:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:07:05,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:07:05,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:07:05,965 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 01:07:05,969 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 01:07:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:07:06,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-21 01:07:06,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:07:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 5878 proven. 714 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-12-21 01:07:10,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:08:13,624 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:09:39,476 WARN L293 SmtUtils]: Spent 1.15m on a formula simplification. DAG size of input: 208 DAG size of output: 206 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 01:10:10,081 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:10:41,437 WARN L293 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 203 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 01:10:58,140 WARN L293 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 01:12:22,383 WARN L293 SmtUtils]: Spent 8.44s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:13:00,406 WARN L293 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:14:59,984 WARN L293 SmtUtils]: Spent 1.37m on a formula simplification. DAG size of input: 209 DAG size of output: 190 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 01:15:08,434 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:15:19,274 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:15:32,403 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:15:44,731 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:15:56,932 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:16:31,793 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:16:38,387 WARN L293 SmtUtils]: Spent 5.81s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:16:57,396 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:18:01,610 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:18:10,791 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 (mod c_~var_1_4~0 65536))) (let ((.cse0 (mod (+ .cse2 c_~var_1_15~0 c_~var_1_17~0) 4294967296)) (.cse56 (* (- 1) c_~var_1_56~0))) (let ((.cse1 (* 255 c_~var_1_17~0)) (.cse55 (* 255 c_~var_1_56~0)) (.cse14 (div (+ .cse0 .cse56) 256))) (let ((.cse41 (* .cse14 256)) (.cse13 (mod (+ c_~var_1_4~0 c_~var_1_15~0 c_~var_1_17~0 .cse55) 256)) (.cse34 (mod (+ .cse1 255 .cse55) 256)) (.cse38 (* (- 1) c_~var_1_17~0)) (.cse46 (* 256 (div .cse0 256)))) (let ((.cse43 (* (- 1) .cse2)) (.cse52 (* (div (+ .cse46 (- 4294966785)) 4294967296) 4294967296)) (.cse51 (* (- 1) (mod (+ 4294967295 c_~var_1_17~0) 4294967296))) (.cse54 (div (+ (- 1) c_~var_1_17~0) 4294967296)) (.cse15 (* (div (+ (- 1) .cse38 .cse56) 256) 256)) (.cse44 (* 256 (div .cse56 256))) (.cse45 (mod .cse55 256)) (.cse25 (* 256 (div (+ (* (- 1) .cse34) 1) 256))) (.cse24 (= .cse13 1)) (.cse3 (+ .cse0 128)) (.cse42 (+ .cse2 .cse41))) (let ((.cse8 (<= .cse3 .cse42)) (.cse4 (<= 1 .cse13)) (.cse5 (<= .cse0 (+ .cse2 .cse41 128))) (.cse6 (not .cse24)) (.cse10 (+ .cse2 4294967294)) (.cse12 (+ 257 .cse25)) (.cse9 (+ .cse0 c_~var_1_17~0)) (.cse7 (+ .cse41 c_~var_1_17~0)) (.cse35 (+ .cse0 2 c_~var_1_17~0)) (.cse32 (* 256 (div (+ (* (- 1) .cse45) 1) 256))) (.cse31 (+ .cse2 .cse44)) (.cse33 (= .cse34 1)) (.cse27 (+ .cse15 .cse2)) (.cse29 (+ .cse44 .cse45)) (.cse22 (mod c_~var_1_67~0 256)) (.cse47 (<= (div (+ .cse51 4294967422) 4294967296) .cse54)) (.cse53 (<= .cse0 (+ .cse2 4294967168 .cse52))) (.cse49 (* 256 (div (+ .cse0 .cse43) 256)))) (or (and (<= (+ 257 .cse0) (+ (mod (+ .cse1 255) 256) .cse2)) (<= .cse3 .cse2)) (and (<= 4294967041 .cse0) (or (and .cse4 .cse5 .cse6 (<= 4294967168 .cse7)) (and .cse8 (<= 4294967424 .cse7))) (<= 4294967297 .cse9)) (and (<= .cse9 .cse10) (let ((.cse11 (<= 16777215 .cse14))) (or (and .cse11 .cse5 .cse6 (<= .cse12 .cse13)) (and (<= 16777216 .cse14) .cse8) (and (<= .cse0 (+ .cse15 .cse2 4294967168)) .cse4 .cse11 .cse5 .cse6)))) (let ((.cse40 (+ 4294967041 .cse22)) (.cse28 (+ .cse0 .cse22 1)) (.cse20 (+ .cse0 .cse22)) (.cse39 (div .cse22 256))) (let ((.cse30 (* (div (+ .cse0 .cse22 .cse43) 256) 256)) (.cse36 (* (- 1) .cse22)) (.cse37 (* 256 .cse39)) (.cse18 (< (+ 255 .cse2 .cse41) .cse20)) (.cse19 (< .cse13 1)) (.cse23 (< .cse41 (+ .cse22 4294966785))) (.cse16 (< .cse42 .cse28)) (.cse17 (< .cse41 .cse40)) (.cse26 (< .cse2 1))) (and (or (< .cse10 .cse9) (let ((.cse21 (+ .cse15 255))) (and (or .cse16 .cse17) (or .cse18 .cse19 (< (+ .cse15 4294967295 .cse2) .cse20) (< .cse21 .cse22) .cse23 .cse24) (or .cse18 (< .cse21 (+ .cse22 .cse25)) (< .cse13 .cse12) .cse23 .cse24))) .cse26) (or (< .cse2 (+ .cse0 1)) (and (or (< .cse27 .cse28) (< .cse29 (+ 2 .cse30))) (or (< .cse31 (+ .cse32 .cse0 .cse22 1)) .cse33 (< .cse34 1) (< (+ 511 .cse15) .cse22))) (< .cse2 .cse35)) (or (< (+ (* (div (+ 255 .cse36 .cse37) 4294967296) 4294967296) .cse2 .cse37) .cse28) (< (+ (* (div (+ (- 1) .cse38 .cse22) 256) 256) 255) .cse22)) (or (< .cse20 (+ 256 .cse30)) (< .cse22 (+ .cse37 c_~var_1_17~0 1)) (< (+ .cse22 (* (div (+ .cse0 (* (- 256) .cse39) .cse22) 4294967296) 4294967296)) (+ 256 .cse37))) (or (< (+ (* (div (+ (- 1) .cse36 .cse37 c_~var_1_17~0) 4294967296) 4294967296) 4294967295 .cse37) .cse22) (< (+ (* (div (+ (- 4294967041) .cse36 (* (div .cse20 256) 256)) 4294967296) 4294967296) 4294967295 .cse2 .cse37) .cse20)) (or (< .cse9 4294967297) (and (or .cse18 .cse19 .cse23 (< .cse7 .cse40) .cse24) (or (< .cse7 (+ .cse22 4294967297)) .cse16 .cse17)) .cse26 (< .cse0 4294967041))))) (and (<= 1 c_~var_1_17~0) (or (and (<= 128 (+ c_~var_1_17~0 .cse44)) (<= .cse3 .cse31)) (and (<= .cse0 (+ .cse2 128 .cse44)) (not (= .cse45 1)) (<= 0 (+ 128 c_~var_1_17~0 .cse44)) (<= 1 .cse45)))) (and (<= .cse0 (+ (* (div (+ .cse46 (- 4294967041)) 4294967296) 4294967296) .cse2 4294967168)) .cse47) (and (or (< .cse22 127) (not (= |c_assume_abort_if_not_#in~cond| 1))) (or (< 126 .cse22) (not (= |c_assume_abort_if_not_#in~cond| 0)))) (let ((.cse48 (mod (+ c_~var_1_15~0 c_~var_1_17~0) 256))) (and (<= .cse48 128) (<= (+ .cse48 c_~var_1_17~0) 254))) (and (<= .cse35 .cse2) (or (and (<= (+ .cse32 .cse0 128) .cse31) (not .cse33)) (and (<= .cse3 .cse27) (<= (+ .cse49 258) .cse29)))) (< 254 .cse22) (let ((.cse50 (mod (+ c_~var_1_4~0 c_~var_1_15~0 c_~var_1_17~0) 256))) (and .cse47 (not (= .cse50 1)) (<= (+ (* (div (+ .cse51 (* (- 1) .cse50) 4294967551) 4294967296) 4294967296) 1) (mod (+ .cse46 511) 4294967296)) (<= .cse0 (+ .cse50 .cse2 4294967039 .cse52)) .cse53)) (and (<= 1 .cse54) .cse53) (and (<= 4294967042 .cse0) (<= (+ 257 .cse49) .cse0))))))))) is different from true [2023-12-21 01:18:24,439 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:19:20,443 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:19:28,993 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:19:37,015 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:20:15,217 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-21 01:20:39,568 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-21 01:20:46,300 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 01:20:46,300 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 01:20:47,313 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 01:20:47,508 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-21 01:20:47,576 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 01:20:47,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 01:20:47,576 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 467 with TraceHistMax 68,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-21 01:20:47,580 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:20:47,582 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 01:20:47,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:20:47 BoogieIcfgContainer [2023-12-21 01:20:47,583 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 01:20:47,584 INFO L158 Benchmark]: Toolchain (without parser) took 854914.04ms. Allocated memory was 394.3MB in the beginning and 4.1GB in the end (delta: 3.7GB). Free memory was 355.0MB in the beginning and 3.8GB in the end (delta: -3.4GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-21 01:20:47,584 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 220.2MB. Free memory is still 166.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 01:20:47,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.51ms. Allocated memory is still 394.3MB. Free memory was 355.0MB in the beginning and 317.8MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-21 01:20:47,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.01ms. Allocated memory is still 394.3MB. Free memory was 317.8MB in the beginning and 299.5MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-21 01:20:47,585 INFO L158 Benchmark]: Boogie Preprocessor took 204.38ms. Allocated memory is still 394.3MB. Free memory was 299.5MB in the beginning and 344.7MB in the end (delta: -45.3MB). Peak memory consumption was 40.2MB. Max. memory is 8.0GB. [2023-12-21 01:20:47,585 INFO L158 Benchmark]: RCFGBuilder took 1335.26ms. Allocated memory is still 394.3MB. Free memory was 344.7MB in the beginning and 339.3MB in the end (delta: 5.4MB). Peak memory consumption was 99.8MB. Max. memory is 8.0GB. [2023-12-21 01:20:47,585 INFO L158 Benchmark]: TraceAbstraction took 852629.97ms. Allocated memory was 394.3MB in the beginning and 4.1GB in the end (delta: 3.7GB). Free memory was 338.8MB in the beginning and 3.8GB in the end (delta: -3.4GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-21 01:20:47,586 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2023-12-21 01:20:47,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 220.2MB. Free memory is still 166.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 613.51ms. Allocated memory is still 394.3MB. Free memory was 355.0MB in the beginning and 317.8MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 126.01ms. Allocated memory is still 394.3MB. Free memory was 317.8MB in the beginning and 299.5MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 204.38ms. Allocated memory is still 394.3MB. Free memory was 299.5MB in the beginning and 344.7MB in the end (delta: -45.3MB). Peak memory consumption was 40.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1335.26ms. Allocated memory is still 394.3MB. Free memory was 344.7MB in the beginning and 339.3MB in the end (delta: 5.4MB). Peak memory consumption was 99.8MB. Max. memory is 8.0GB. * TraceAbstraction took 852629.97ms. Allocated memory was 394.3MB in the beginning and 4.1GB in the end (delta: 3.7GB). Free memory was 338.8MB in the beginning and 3.8GB in the end (delta: -3.4GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 467 with TraceHistMax 68,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 247 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 852.6s, OverallIterations: 11, TraceHistogramMax: 68, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5922 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5869 mSDsluCounter, 11810 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7573 mSDsCounter, 901 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2940 IncrementalHoareTripleChecker+Invalid, 3841 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 901 mSolverCounterUnsat, 4237 mSDtfsCounter, 2940 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5598 GetRequests, 5519 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5790occurred in iteration=10, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 6037 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 4647 NumberOfCodeBlocks, 4647 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 5566 ConstructedInterpolants, 0 QuantifiedInterpolants, 18331 SizeOfPredicates, 26 NumberOfNonLiveVariables, 11571 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 108654/109344 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown