/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:47:43,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:47:43,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:47:43,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:47:43,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:47:43,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:47:43,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:47:43,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:47:43,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:47:43,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:47:43,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:47:43,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:47:43,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:47:43,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:47:43,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:47:43,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:47:43,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:47:43,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:47:43,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:47:43,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:47:43,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:47:43,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:47:43,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:47:43,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:47:43,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:47:43,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:47:43,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:47:43,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:47:43,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:47:43,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:47:43,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:47:43,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:47:43,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:47:43,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:47:43,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:47:43,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:47:43,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:47:43,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:47:43,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:47:43,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:47:43,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:47:43,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:47:43,328 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:47:43,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:47:43,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:47:43,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:47:43,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:47:43,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:47:43,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:47:43,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:47:43,335 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:47:43,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:47:43,336 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:47:43,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:47:43,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:47:43,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:47:43,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:47:43,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:47:43,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:47:43,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:47:43,338 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:47:43,338 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:47:43,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:47:43,338 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:47:43,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:47:43,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:47:43,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:47:43,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:47:43,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:47:43,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:47:43,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:47:43,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:47:43,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:47:43,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:47:43,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:47:43,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:47:43,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:47:43,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:47:43,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:47:43,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:47:43,780 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:47:43,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2022-10-16 17:47:43,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc0a5153/c8f2cd3c55e544868f5a5f9ef41f35a3/FLAG0205489b8 [2022-10-16 17:47:44,491 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:47:44,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2022-10-16 17:47:44,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc0a5153/c8f2cd3c55e544868f5a5f9ef41f35a3/FLAG0205489b8 [2022-10-16 17:47:44,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc0a5153/c8f2cd3c55e544868f5a5f9ef41f35a3 [2022-10-16 17:47:44,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:47:44,885 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:47:44,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:47:44,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:47:44,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:47:44,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:47:44" (1/1) ... [2022-10-16 17:47:44,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6338c8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:44, skipping insertion in model container [2022-10-16 17:47:44,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:47:44" (1/1) ... [2022-10-16 17:47:44,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:47:44,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:47:45,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c[454,467] [2022-10-16 17:47:45,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:47:45,122 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:47:45,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c[454,467] [2022-10-16 17:47:45,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:47:45,156 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:47:45,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45 WrapperNode [2022-10-16 17:47:45,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:47:45,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:47:45,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:47:45,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:47:45,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,195 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-10-16 17:47:45,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:47:45,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:47:45,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:47:45,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:47:45,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,216 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:47:45,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:47:45,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:47:45,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:47:45,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (1/1) ... [2022-10-16 17:47:45,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:47:45,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:45,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:47:45,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:47:45,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:47:45,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:47:45,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:47:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:47:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-10-16 17:47:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-10-16 17:47:45,399 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:47:45,401 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:47:45,620 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:47:45,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:47:45,638 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 17:47:45,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:47:45 BoogieIcfgContainer [2022-10-16 17:47:45,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:47:45,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:47:45,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:47:45,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:47:45,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:47:44" (1/3) ... [2022-10-16 17:47:45,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52695fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:47:45, skipping insertion in model container [2022-10-16 17:47:45,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:45" (2/3) ... [2022-10-16 17:47:45,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52695fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:47:45, skipping insertion in model container [2022-10-16 17:47:45,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:47:45" (3/3) ... [2022-10-16 17:47:45,664 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i20_o20-2.c [2022-10-16 17:47:45,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:47:45,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 17:47:45,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:47:45,890 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@2982c60f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:47:45,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 17:47:45,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:47:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:47:45,929 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:45,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:47:45,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:45,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:45,940 INFO L85 PathProgramCache]: Analyzing trace with hash 890289268, now seen corresponding path program 1 times [2022-10-16 17:47:45,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:45,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981210448] [2022-10-16 17:47:45,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:45,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:46,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:46,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981210448] [2022-10-16 17:47:46,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981210448] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:46,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:46,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:47:46,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542115940] [2022-10-16 17:47:46,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:46,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:47:46,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:46,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:47:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:47:46,326 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:46,440 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-10-16 17:47:46,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:47:46,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 17:47:46,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:46,455 INFO L225 Difference]: With dead ends: 26 [2022-10-16 17:47:46,455 INFO L226 Difference]: Without dead ends: 16 [2022-10-16 17:47:46,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:47:46,464 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:46,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 36 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-16 17:47:46,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-16 17:47:46,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:46,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-10-16 17:47:46,535 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2022-10-16 17:47:46,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:46,536 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-10-16 17:47:46,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-10-16 17:47:46,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:47:46,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:46,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:46,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:47:46,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:46,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:46,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1829163585, now seen corresponding path program 1 times [2022-10-16 17:47:46,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:46,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5978160] [2022-10-16 17:47:46,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:46,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:46,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:46,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5978160] [2022-10-16 17:47:46,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5978160] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:46,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:46,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:47:46,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492951814] [2022-10-16 17:47:46,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:46,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:47:46,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:46,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:47:46,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:47:46,714 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:46,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:46,807 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-10-16 17:47:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:47:46,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 17:47:46,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:46,810 INFO L225 Difference]: With dead ends: 31 [2022-10-16 17:47:46,810 INFO L226 Difference]: Without dead ends: 26 [2022-10-16 17:47:46,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:47:46,814 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:46,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 50 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:46,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-16 17:47:46,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-10-16 17:47:46,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:47:46,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-10-16 17:47:46,840 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2022-10-16 17:47:46,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:46,842 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-10-16 17:47:46,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:46,844 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-10-16 17:47:46,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:47:46,850 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:46,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:46,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:47:46,851 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:46,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:46,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1830524380, now seen corresponding path program 1 times [2022-10-16 17:47:46,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:46,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77561713] [2022-10-16 17:47:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:46,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:47,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:47,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:47,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77561713] [2022-10-16 17:47:47,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77561713] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:47,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499117532] [2022-10-16 17:47:47,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:47,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:47,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:47,035 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) [2022-10-16 17:47:47,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:47:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:47,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:47:47,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:47,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:47,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499117532] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:47,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:47,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 17:47:47,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676153681] [2022-10-16 17:47:47,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:47,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:47:47,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:47,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:47:47,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:47:47,360 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:47,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:47,578 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-10-16 17:47:47,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:47:47,580 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:47:47,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:47,585 INFO L225 Difference]: With dead ends: 74 [2022-10-16 17:47:47,585 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 17:47:47,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:47:47,592 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 110 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:47,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 89 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:47,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 17:47:47,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-10-16 17:47:47,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 17:47:47,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-10-16 17:47:47,632 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2022-10-16 17:47:47,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:47,633 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-10-16 17:47:47,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:47,634 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-10-16 17:47:47,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:47:47,635 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:47,636 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:47,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:47,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:47,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:47,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:47,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1359868900, now seen corresponding path program 1 times [2022-10-16 17:47:47,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:47,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789090610] [2022-10-16 17:47:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:47,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:47,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 17:47:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:47,981 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 17:47:47,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:47,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789090610] [2022-10-16 17:47:47,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789090610] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:47,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:47,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:47:47,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279993646] [2022-10-16 17:47:47,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:47,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:47:47,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:47,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:47:47,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:47:47,988 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:48,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:48,018 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-10-16 17:47:48,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:47:48,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-10-16 17:47:48,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:48,025 INFO L225 Difference]: With dead ends: 74 [2022-10-16 17:47:48,025 INFO L226 Difference]: Without dead ends: 72 [2022-10-16 17:47:48,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:47:48,032 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:48,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:48,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-10-16 17:47:48,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-10-16 17:47:48,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-10-16 17:47:48,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2022-10-16 17:47:48,061 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2022-10-16 17:47:48,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:48,062 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2022-10-16 17:47:48,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:48,062 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2022-10-16 17:47:48,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 17:47:48,063 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:48,064 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:48,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:47:48,064 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:48,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:48,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2128706883, now seen corresponding path program 1 times [2022-10-16 17:47:48,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:48,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001373307] [2022-10-16 17:47:48,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:48,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:48,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 17:47:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:48,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:47:48,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:48,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001373307] [2022-10-16 17:47:48,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001373307] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:48,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629648383] [2022-10-16 17:47:48,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:48,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:48,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:48,303 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) [2022-10-16 17:47:48,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:47:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:48,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:47:48,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:47:48,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:47:48,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629648383] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:48,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:48,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 18 [2022-10-16 17:47:48,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983120748] [2022-10-16 17:47:48,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:48,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:47:48,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:48,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:47:48,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:47:48,747 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 17:47:48,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:48,953 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-10-16 17:47:48,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:47:48,954 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2022-10-16 17:47:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:48,955 INFO L225 Difference]: With dead ends: 101 [2022-10-16 17:47:48,956 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 17:47:48,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2022-10-16 17:47:48,958 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 109 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:48,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 91 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:48,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 17:47:48,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-10-16 17:47:48,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-10-16 17:47:48,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-10-16 17:47:48,969 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 24 [2022-10-16 17:47:48,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:48,969 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-10-16 17:47:48,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 17:47:48,970 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-10-16 17:47:48,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 17:47:48,971 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:48,971 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 17:47:49,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 17:47:49,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:49,186 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:49,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:49,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1294342655, now seen corresponding path program 2 times [2022-10-16 17:47:49,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:49,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347675934] [2022-10-16 17:47:49,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:49,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:49,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:49,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347675934] [2022-10-16 17:47:49,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347675934] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:49,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098579391] [2022-10-16 17:47:49,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:47:49,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:49,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:49,373 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) [2022-10-16 17:47:49,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:47:49,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:47:49,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:49,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:47:49,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:49,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:49,730 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:49,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098579391] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:49,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:49,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-10-16 17:47:49,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004213351] [2022-10-16 17:47:49,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:49,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:47:49,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:49,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:47:49,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:47:49,734 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:50,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:50,158 INFO L93 Difference]: Finished difference Result 220 states and 236 transitions. [2022-10-16 17:47:50,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 17:47:50,159 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 17:47:50,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:50,161 INFO L225 Difference]: With dead ends: 220 [2022-10-16 17:47:50,162 INFO L226 Difference]: Without dead ends: 197 [2022-10-16 17:47:50,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1017, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 17:47:50,164 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 304 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:50,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 202 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:47:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-16 17:47:50,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 177. [2022-10-16 17:47:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 139 states have internal predecessors, (167), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-10-16 17:47:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-10-16 17:47:50,189 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 27 [2022-10-16 17:47:50,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:50,190 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-10-16 17:47:50,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:50,190 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-10-16 17:47:50,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 17:47:50,192 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:50,192 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:50,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:50,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:50,407 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:50,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:50,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1697859681, now seen corresponding path program 1 times [2022-10-16 17:47:50,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:50,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373541143] [2022-10-16 17:47:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:50,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 17:47:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 17:47:50,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:50,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373541143] [2022-10-16 17:47:50,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373541143] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:50,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:50,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:47:50,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447448814] [2022-10-16 17:47:50,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:50,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:47:50,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:50,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:47:50,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:47:50,484 INFO L87 Difference]: Start difference. First operand 177 states and 205 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:50,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:50,507 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2022-10-16 17:47:50,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:47:50,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-10-16 17:47:50,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:50,510 INFO L225 Difference]: With dead ends: 177 [2022-10-16 17:47:50,510 INFO L226 Difference]: Without dead ends: 175 [2022-10-16 17:47:50,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:47:50,512 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:50,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:50,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-16 17:47:50,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-10-16 17:47:50,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-10-16 17:47:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2022-10-16 17:47:50,531 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 40 [2022-10-16 17:47:50,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:50,532 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-10-16 17:47:50,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2022-10-16 17:47:50,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 17:47:50,534 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:50,534 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:47:50,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:47:50,535 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:50,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:50,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1883083449, now seen corresponding path program 2 times [2022-10-16 17:47:50,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:50,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741486607] [2022-10-16 17:47:50,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:50,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 17:47:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 62 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:47:50,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:50,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741486607] [2022-10-16 17:47:50,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741486607] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:50,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237444128] [2022-10-16 17:47:50,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:47:50,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:50,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:50,828 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) [2022-10-16 17:47:50,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 17:47:50,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:47:50,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:50,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 17:47:50,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 17:47:51,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 17:47:51,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237444128] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:51,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:51,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 15] total 26 [2022-10-16 17:47:51,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299647138] [2022-10-16 17:47:51,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:51,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 17:47:51,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:51,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 17:47:51,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2022-10-16 17:47:51,425 INFO L87 Difference]: Start difference. First operand 175 states and 193 transitions. Second operand has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-10-16 17:47:51,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:51,662 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2022-10-16 17:47:51,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 17:47:51,663 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) Word has length 44 [2022-10-16 17:47:51,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:51,665 INFO L225 Difference]: With dead ends: 224 [2022-10-16 17:47:51,665 INFO L226 Difference]: Without dead ends: 157 [2022-10-16 17:47:51,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=278, Invalid=982, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 17:47:51,668 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 179 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:51,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 315 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:51,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-10-16 17:47:51,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 139. [2022-10-16 17:47:51,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 109 states have internal predecessors, (123), 12 states have call successors, (12), 11 states have call predecessors, (12), 15 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2022-10-16 17:47:51,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2022-10-16 17:47:51,683 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 44 [2022-10-16 17:47:51,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:51,683 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2022-10-16 17:47:51,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-10-16 17:47:51,684 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2022-10-16 17:47:51,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 17:47:51,685 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:51,686 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-10-16 17:47:51,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:51,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:51,902 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:51,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1160556449, now seen corresponding path program 3 times [2022-10-16 17:47:51,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:51,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227620019] [2022-10-16 17:47:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:51,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:52,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:52,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227620019] [2022-10-16 17:47:52,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227620019] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:52,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592251062] [2022-10-16 17:47:52,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:47:52,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:52,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:52,348 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) [2022-10-16 17:47:52,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 17:47:52,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 17:47:52,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:52,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 17:47:52,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:52,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:53,048 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:53,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592251062] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:53,049 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:53,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-10-16 17:47:53,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192252001] [2022-10-16 17:47:53,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:53,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 17:47:53,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:53,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 17:47:53,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:47:53,053 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:54,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:54,161 INFO L93 Difference]: Finished difference Result 431 states and 464 transitions. [2022-10-16 17:47:54,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-10-16 17:47:54,162 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 17:47:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:54,165 INFO L225 Difference]: With dead ends: 431 [2022-10-16 17:47:54,165 INFO L226 Difference]: Without dead ends: 371 [2022-10-16 17:47:54,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1742, Invalid=4578, Unknown=0, NotChecked=0, Total=6320 [2022-10-16 17:47:54,170 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 718 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:54,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 535 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:47:54,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-10-16 17:47:54,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2022-10-16 17:47:54,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 276 states have (on average 1.1268115942028984) internal successors, (311), 275 states have internal predecessors, (311), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2022-10-16 17:47:54,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 385 transitions. [2022-10-16 17:47:54,195 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 385 transitions. Word has length 57 [2022-10-16 17:47:54,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:54,196 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 385 transitions. [2022-10-16 17:47:54,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:54,196 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 385 transitions. [2022-10-16 17:47:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 17:47:54,199 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:54,199 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:47:54,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:54,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:54,414 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:54,415 INFO L85 PathProgramCache]: Analyzing trace with hash 292034471, now seen corresponding path program 3 times [2022-10-16 17:47:54,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:54,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367877532] [2022-10-16 17:47:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:54,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:54,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 17:47:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:54,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:55,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:55,098 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:47:55,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:55,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367877532] [2022-10-16 17:47:55,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367877532] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:55,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365571890] [2022-10-16 17:47:55,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:47:55,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:55,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:55,100 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) [2022-10-16 17:47:55,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 17:47:55,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 17:47:55,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:55,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:47:55,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-10-16 17:47:55,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:55,557 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-10-16 17:47:55,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365571890] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:55,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:55,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 7, 7] total 38 [2022-10-16 17:47:55,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434445812] [2022-10-16 17:47:55,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:55,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 17:47:55,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:55,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 17:47:55,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1226, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 17:47:55,564 INFO L87 Difference]: Start difference. First operand 349 states and 385 transitions. Second operand has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 17:47:56,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:56,757 INFO L93 Difference]: Finished difference Result 702 states and 802 transitions. [2022-10-16 17:47:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 17:47:56,760 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2022-10-16 17:47:56,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:56,763 INFO L225 Difference]: With dead ends: 702 [2022-10-16 17:47:56,763 INFO L226 Difference]: Without dead ends: 647 [2022-10-16 17:47:56,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=742, Invalid=4660, Unknown=0, NotChecked=0, Total=5402 [2022-10-16 17:47:56,767 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 295 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:56,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 366 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:47:56,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-10-16 17:47:56,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 638. [2022-10-16 17:47:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 509 states have (on average 1.0667976424361494) internal successors, (543), 504 states have internal predecessors, (543), 24 states have call successors, (24), 23 states have call predecessors, (24), 103 states have return successors, (110), 110 states have call predecessors, (110), 23 states have call successors, (110) [2022-10-16 17:47:56,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 677 transitions. [2022-10-16 17:47:56,798 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 677 transitions. Word has length 74 [2022-10-16 17:47:56,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:56,798 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 677 transitions. [2022-10-16 17:47:56,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 17:47:56,799 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 677 transitions. [2022-10-16 17:47:56,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 17:47:56,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:56,804 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 17:47:56,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:57,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:57,019 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:57,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:57,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1383014436, now seen corresponding path program 4 times [2022-10-16 17:47:57,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:57,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710988460] [2022-10-16 17:47:57,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:57,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:57,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 17:47:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:57,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:57,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:57,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 360 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-10-16 17:47:57,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:57,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710988460] [2022-10-16 17:47:57,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710988460] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:57,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866061822] [2022-10-16 17:47:57,758 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:47:57,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:57,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:57,759 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) [2022-10-16 17:47:57,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 17:47:57,826 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:47:57,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:57,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 17:47:57,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 354 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-10-16 17:47:57,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 420 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 17:48:00,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866061822] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:00,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:00,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 29] total 46 [2022-10-16 17:48:00,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448909657] [2022-10-16 17:48:00,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:00,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-10-16 17:48:00,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:00,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-10-16 17:48:00,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=1677, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 17:48:00,006 INFO L87 Difference]: Start difference. First operand 638 states and 677 transitions. Second operand has 46 states, 44 states have (on average 2.6363636363636362) internal successors, (116), 34 states have internal predecessors, (116), 22 states have call successors, (22), 13 states have call predecessors, (22), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-10-16 17:48:00,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:00,541 INFO L93 Difference]: Finished difference Result 741 states and 779 transitions. [2022-10-16 17:48:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-16 17:48:00,541 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 44 states have (on average 2.6363636363636362) internal successors, (116), 34 states have internal predecessors, (116), 22 states have call successors, (22), 13 states have call predecessors, (22), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) Word has length 99 [2022-10-16 17:48:00,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:00,545 INFO L225 Difference]: With dead ends: 741 [2022-10-16 17:48:00,545 INFO L226 Difference]: Without dead ends: 477 [2022-10-16 17:48:00,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 181 SyntacticMatches, 7 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=919, Invalid=3371, Unknown=0, NotChecked=0, Total=4290 [2022-10-16 17:48:00,549 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 355 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:00,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 737 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:48:00,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-10-16 17:48:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 435. [2022-10-16 17:48:00,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 348 states have (on average 1.0775862068965518) internal successors, (375), 343 states have internal predecessors, (375), 24 states have call successors, (24), 23 states have call predecessors, (24), 61 states have return successors, (68), 68 states have call predecessors, (68), 23 states have call successors, (68) [2022-10-16 17:48:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 467 transitions. [2022-10-16 17:48:00,575 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 467 transitions. Word has length 99 [2022-10-16 17:48:00,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:00,575 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 467 transitions. [2022-10-16 17:48:00,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 44 states have (on average 2.6363636363636362) internal successors, (116), 34 states have internal predecessors, (116), 22 states have call successors, (22), 13 states have call predecessors, (22), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-10-16 17:48:00,576 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 467 transitions. [2022-10-16 17:48:00,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 17:48:00,578 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:00,578 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-10-16 17:48:00,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:00,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:00,791 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:00,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:00,792 INFO L85 PathProgramCache]: Analyzing trace with hash 848460513, now seen corresponding path program 4 times [2022-10-16 17:48:00,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:00,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224239083] [2022-10-16 17:48:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:00,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:02,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:02,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:02,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224239083] [2022-10-16 17:48:02,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224239083] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:02,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624326832] [2022-10-16 17:48:02,256 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:48:02,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:02,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:02,259 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) [2022-10-16 17:48:02,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 17:48:02,330 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:48:02,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:48:02,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 17:48:02,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:02,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:04,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:04,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624326832] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:04,739 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:04,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-10-16 17:48:04,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645817427] [2022-10-16 17:48:04,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:04,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-10-16 17:48:04,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:04,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-10-16 17:48:04,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 17:48:04,745 INFO L87 Difference]: Start difference. First operand 435 states and 467 transitions. Second operand has 96 states, 93 states have (on average 2.010752688172043) internal successors, (187), 50 states have internal predecessors, (187), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:05,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:05,679 INFO L93 Difference]: Finished difference Result 521 states and 544 transitions. [2022-10-16 17:48:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-10-16 17:48:05,680 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.010752688172043) internal successors, (187), 50 states have internal predecessors, (187), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-10-16 17:48:05,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:05,683 INFO L225 Difference]: With dead ends: 521 [2022-10-16 17:48:05,684 INFO L226 Difference]: Without dead ends: 425 [2022-10-16 17:48:05,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2873 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4100, Invalid=9706, Unknown=0, NotChecked=0, Total=13806 [2022-10-16 17:48:05,691 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 759 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:05,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 726 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:48:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-10-16 17:48:05,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 405. [2022-10-16 17:48:05,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 325 states have (on average 1.0769230769230769) internal successors, (350), 319 states have internal predecessors, (350), 24 states have call successors, (24), 23 states have call predecessors, (24), 55 states have return successors, (62), 62 states have call predecessors, (62), 23 states have call successors, (62) [2022-10-16 17:48:05,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 436 transitions. [2022-10-16 17:48:05,716 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 436 transitions. Word has length 117 [2022-10-16 17:48:05,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:05,717 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 436 transitions. [2022-10-16 17:48:05,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.010752688172043) internal successors, (187), 50 states have internal predecessors, (187), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:05,718 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 436 transitions. [2022-10-16 17:48:05,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-16 17:48:05,720 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:05,721 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 17:48:05,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:05,934 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,SelfDestructingSolverStorable11 [2022-10-16 17:48:05,934 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:05,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:05,935 INFO L85 PathProgramCache]: Analyzing trace with hash 18589604, now seen corresponding path program 5 times [2022-10-16 17:48:05,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:05,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514343302] [2022-10-16 17:48:05,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:05,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:06,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 17:48:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:06,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 20 proven. 99 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-10-16 17:48:06,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:06,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514343302] [2022-10-16 17:48:06,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514343302] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:06,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108943668] [2022-10-16 17:48:06,529 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:48:06,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:06,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:06,531 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) [2022-10-16 17:48:06,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 17:48:06,641 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-10-16 17:48:06,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:48:06,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:48:06,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-10-16 17:48:06,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:07,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-10-16 17:48:07,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108943668] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:07,968 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:07,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-10-16 17:48:07,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064560441] [2022-10-16 17:48:07,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:07,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 17:48:07,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:07,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 17:48:07,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 17:48:07,970 INFO L87 Difference]: Start difference. First operand 405 states and 436 transitions. Second operand has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 17:48:08,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:08,351 INFO L93 Difference]: Finished difference Result 922 states and 1068 transitions. [2022-10-16 17:48:08,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 17:48:08,352 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 139 [2022-10-16 17:48:08,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:08,357 INFO L225 Difference]: With dead ends: 922 [2022-10-16 17:48:08,358 INFO L226 Difference]: Without dead ends: 921 [2022-10-16 17:48:08,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-10-16 17:48:08,361 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 64 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:08,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 78 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:48:08,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-10-16 17:48:08,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2022-10-16 17:48:08,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 741 states have (on average 1.0337381916329285) internal successors, (766), 727 states have internal predecessors, (766), 24 states have call successors, (24), 23 states have call predecessors, (24), 155 states have return successors, (170), 170 states have call predecessors, (170), 23 states have call successors, (170) [2022-10-16 17:48:08,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 960 transitions. [2022-10-16 17:48:08,400 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 960 transitions. Word has length 139 [2022-10-16 17:48:08,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:08,401 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 960 transitions. [2022-10-16 17:48:08,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 17:48:08,401 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 960 transitions. [2022-10-16 17:48:08,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-10-16 17:48:08,406 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:08,406 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 17:48:08,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:08,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 17:48:08,621 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:08,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:08,621 INFO L85 PathProgramCache]: Analyzing trace with hash -706464220, now seen corresponding path program 6 times [2022-10-16 17:48:08,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:08,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352062653] [2022-10-16 17:48:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:08,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 17:48:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:09,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:09,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:09,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:09,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 20 proven. 511 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-10-16 17:48:10,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:10,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352062653] [2022-10-16 17:48:10,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352062653] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:10,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277922696] [2022-10-16 17:48:10,983 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 17:48:10,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:10,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:10,986 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) [2022-10-16 17:48:10,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 17:48:11,124 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2022-10-16 17:48:11,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:48:11,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 17:48:11,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-10-16 17:48:11,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-10-16 17:48:22,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277922696] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:22,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:22,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 64 [2022-10-16 17:48:22,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856599445] [2022-10-16 17:48:22,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:22,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-10-16 17:48:22,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:22,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-10-16 17:48:22,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 17:48:22,641 INFO L87 Difference]: Start difference. First operand 921 states and 960 transitions. Second operand has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-10-16 17:48:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:23,596 INFO L93 Difference]: Finished difference Result 2639 states and 3035 transitions. [2022-10-16 17:48:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 17:48:23,597 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 179 [2022-10-16 17:48:23,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:23,605 INFO L225 Difference]: With dead ends: 2639 [2022-10-16 17:48:23,605 INFO L226 Difference]: Without dead ends: 1472 [2022-10-16 17:48:23,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6405 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=3039, Invalid=12461, Unknown=0, NotChecked=0, Total=15500 [2022-10-16 17:48:23,614 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 128 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:23,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 90 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:48:23,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-10-16 17:48:23,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-10-16 17:48:23,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1185 states have (on average 1.019409282700422) internal successors, (1208), 1164 states have internal predecessors, (1208), 24 states have call successors, (24), 23 states have call predecessors, (24), 262 states have return successors, (284), 284 states have call predecessors, (284), 23 states have call successors, (284) [2022-10-16 17:48:23,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1516 transitions. [2022-10-16 17:48:23,674 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1516 transitions. Word has length 179 [2022-10-16 17:48:23,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:23,675 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 1516 transitions. [2022-10-16 17:48:23,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-10-16 17:48:23,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1516 transitions. [2022-10-16 17:48:23,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-10-16 17:48:23,688 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:23,688 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-10-16 17:48:23,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:23,901 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,SelfDestructingSolverStorable13 [2022-10-16 17:48:23,901 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:23,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:23,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1980487428, now seen corresponding path program 7 times [2022-10-16 17:48:23,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:23,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761022980] [2022-10-16 17:48:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:23,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:25,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 17:48:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:28,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:29,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:30,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:31,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:32,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:33,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:34,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:34,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:35,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:36,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:36,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:36,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:37,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:37,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:37,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:37,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:37,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:37,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 54 proven. 2295 refuted. 0 times theorem prover too weak. 7209 trivial. 0 not checked. [2022-10-16 17:48:37,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:37,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761022980] [2022-10-16 17:48:37,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761022980] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:37,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059167752] [2022-10-16 17:48:37,663 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 17:48:37,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:37,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:37,664 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) [2022-10-16 17:48:37,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 17:48:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:37,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 112 conjunts are in the unsatisfiable core [2022-10-16 17:48:37,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 3648 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2022-10-16 17:48:42,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 5418 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-10-16 17:50:54,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059167752] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:54,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:54,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 83, 113] total 226 [2022-10-16 17:50:54,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714673656] [2022-10-16 17:50:54,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:54,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 226 states [2022-10-16 17:50:54,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:54,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 226 interpolants. [2022-10-16 17:50:54,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5220, Invalid=45630, Unknown=0, NotChecked=0, Total=50850 [2022-10-16 17:50:54,307 INFO L87 Difference]: Start difference. First operand 1472 states and 1516 transitions. Second operand has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-10-16 17:50:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:56,304 INFO L93 Difference]: Finished difference Result 1472 states and 1516 transitions. [2022-10-16 17:50:56,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-10-16 17:50:56,305 INFO L78 Accepts]: Start accepts. Automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) Word has length 429 [2022-10-16 17:50:56,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:56,307 INFO L225 Difference]: With dead ends: 1472 [2022-10-16 17:50:56,307 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 17:50:56,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 726 SyntacticMatches, 31 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33237 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=8088, Invalid=54162, Unknown=0, NotChecked=0, Total=62250 [2022-10-16 17:50:56,319 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 109 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 3221 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 3227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:56,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 127 Invalid, 3227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3221 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 17:50:56,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 17:50:56,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 17:50:56,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:56,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 17:50:56,321 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 429 [2022-10-16 17:50:56,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:56,322 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 17:50:56,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-10-16 17:50:56,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 17:50:56,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 17:50:56,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 17:50:56,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 17:50:56,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 17:50:56,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 17:50:56,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:56,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:50:56,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 17:50:57,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 17:50:57,296 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 17:50:57,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 17:50:57,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 17:50:57,297 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-10-16 17:50:57,297 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-10-16 17:50:57,298 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (and (<= 20 |ULTIMATE.start_main_~input~0#1|) (<= |ULTIMATE.start_main_~input~0#1| 20)) [2022-10-16 17:50:57,298 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-10-16 17:50:57,298 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 17) no Hoare annotation was computed. [2022-10-16 17:50:57,298 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:50:57,298 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:50:57,298 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2022-10-16 17:50:57,298 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2022-10-16 17:50:57,299 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2022-10-16 17:50:57,299 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:50:57,299 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:50:57,299 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-10-16 17:50:57,299 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-10-16 17:50:57,299 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-10-16 17:50:57,300 INFO L895 garLoopResultBuilder]: At program point L8-2(line 8) the Hoare annotation is: (let ((.cse0 (= |id_#in~x| id_~x))) (and (or .cse0 (not (<= |id_#in~x| 20)) (not (<= 12 |id_#in~x|))) (or (not (<= |id_#in~x| 0)) (not (<= 0 |id_#in~x|))) (or .cse0 (not (<= 2 |id_#in~x|)) (not (<= |id_#in~x| 2))) (or (not (<= 10 |id_#in~x|)) (not (<= |id_#in~x| 10)) (and (<= id_~x 10) (<= 10 id_~x))) (or (not (<= 3 |id_#in~x|)) (and (<= 3 id_~x) (<= id_~x 3)) (not (<= |id_#in~x| 3))) (or (not (<= 5 |id_#in~x|)) (not (<= |id_#in~x| 5)) (and (<= 5 id_~x) (<= id_~x 5))) (or .cse0 (not (<= 11 |id_#in~x|)) (not (<= |id_#in~x| 11))) (or (not (<= 8 |id_#in~x|)) (not (<= |id_#in~x| 8)) (and (<= id_~x 8) (<= 8 id_~x))) (or .cse0 (not (<= 4 |id_#in~x|)) (not (<= |id_#in~x| 4))) (or .cse0 (not (<= |id_#in~x| 6)) (not (<= 6 |id_#in~x|))) (or (not (<= |id_#in~x| 1)) .cse0 (not (<= 1 |id_#in~x|))) (or (not (<= |id_#in~x| 7)) .cse0 (not (<= 7 |id_#in~x|))) (or (not (<= |id_#in~x| 9)) (not (<= 9 |id_#in~x|)) (and (<= id_~x 9) (<= 9 id_~x))))) [2022-10-16 17:50:57,300 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-10-16 17:50:57,300 INFO L899 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2022-10-16 17:50:57,300 INFO L899 garLoopResultBuilder]: For program point L8-5(line 8) no Hoare annotation was computed. [2022-10-16 17:50:57,305 INFO L444 BasicCegarLoop]: Path program histogram: [7, 4, 1, 1, 1, 1] [2022-10-16 17:50:57,307 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:50:57,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:50:57 BoogieIcfgContainer [2022-10-16 17:50:57,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:50:57,313 INFO L158 Benchmark]: Toolchain (without parser) took 192432.71ms. Allocated memory was 151.0MB in the beginning and 851.4MB in the end (delta: 700.4MB). Free memory was 125.5MB in the beginning and 372.4MB in the end (delta: -246.9MB). Peak memory consumption was 454.4MB. Max. memory is 8.0GB. [2022-10-16 17:50:57,313 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:50:57,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.05ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 116.0MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:50:57,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.70ms. Allocated memory is still 151.0MB. Free memory was 116.0MB in the beginning and 114.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:50:57,314 INFO L158 Benchmark]: Boogie Preprocessor took 21.91ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 113.6MB in the end (delta: 868.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:50:57,314 INFO L158 Benchmark]: RCFGBuilder took 428.60ms. Allocated memory is still 151.0MB. Free memory was 113.6MB in the beginning and 104.3MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:50:57,315 INFO L158 Benchmark]: TraceAbstraction took 191659.34ms. Allocated memory was 151.0MB in the beginning and 851.4MB in the end (delta: 700.4MB). Free memory was 103.6MB in the beginning and 372.4MB in the end (delta: -268.8MB). Peak memory consumption was 432.4MB. Max. memory is 8.0GB. [2022-10-16 17:50:57,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 271.05ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 116.0MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.70ms. Allocated memory is still 151.0MB. Free memory was 116.0MB in the beginning and 114.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.91ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 113.6MB in the end (delta: 868.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 428.60ms. Allocated memory is still 151.0MB. Free memory was 113.6MB in the beginning and 104.3MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 191659.34ms. Allocated memory was 151.0MB in the beginning and 851.4MB in the end (delta: 700.4MB). Free memory was 103.6MB in the beginning and 372.4MB in the end (delta: -268.8MB). Peak memory consumption was 432.4MB. 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 - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 191.5s, OverallIterations: 15, TraceHistogramMax: 55, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3251 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3176 mSDsluCounter, 3505 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3062 mSDsCounter, 913 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6050 IncrementalHoareTripleChecker+Invalid, 6963 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 913 mSolverCounterUnsat, 443 mSDtfsCounter, 6050 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3070 GetRequests, 2146 SyntacticMatches, 43 SemanticMatches, 881 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48204 ImplicationChecksByTransitivity, 22.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1472occurred in iteration=14, InterpolantAutomatonStates: 429, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 152 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 49 PreInvPairs, 49 NumberOfFragments, 182 HoareAnnotationTreeSize, 49 FomulaSimplifications, 650 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1172 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 177.2s InterpolantComputationTime, 2474 NumberOfCodeBlocks, 2429 NumberOfCodeBlocksAsserted, 82 NumberOfCheckSat, 3638 ConstructedInterpolants, 0 QuantifiedInterpolants, 9636 SizeOfPredicates, 118 NumberOfNonLiveVariables, 2362 ConjunctsInSsa, 305 ConjunctsInUnsatCore, 37 InterpolantComputations, 4 PerfectInterpolantSequences, 24204/43739 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-16 17:50:57,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...