/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/memsafety-ext3/naturalNumbers1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:49:46,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:49:46,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:49:47,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:49:47,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:49:47,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:49:47,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:49:47,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:49:47,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:49:47,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:49:47,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:49:47,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:49:47,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:49:47,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:49:47,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:49:47,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:49:47,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:49:47,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:49:47,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:49:47,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:49:47,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:49:47,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:49:47,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:49:47,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:49:47,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:49:47,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:49:47,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:49:47,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:49:47,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:49:47,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:49:47,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:49:47,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:49:47,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:49:47,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:49:47,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:49:47,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:49:47,159 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 14:49:47,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:49:47,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:49:47,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:49:47,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:49:47,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:49:47,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:49:47,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:49:47,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:49:47,219 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:49:47,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:49:47,220 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:49:47,220 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:49:47,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:49:47,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:49:47,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:49:47,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:49:47,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:49:47,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:49:47,222 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:49:47,222 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:49:47,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:49:47,223 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:49:47,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:49:47,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:49:47,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:49:47,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:49:47,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:49:47,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:49:47,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:49:47,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:49:47,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:49:47,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:49:47,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:49:47,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:49:47,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:49:47,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:49:47,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:49:47,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:49:47,670 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:49:47,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2022-10-16 14:49:47,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27e195354/dfe28b09c51449168183bd4b94b7a1cf/FLAG7fbee1c85 [2022-10-16 14:49:48,374 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:49:48,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2022-10-16 14:49:48,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27e195354/dfe28b09c51449168183bd4b94b7a1cf/FLAG7fbee1c85 [2022-10-16 14:49:48,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27e195354/dfe28b09c51449168183bd4b94b7a1cf [2022-10-16 14:49:48,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:49:48,772 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:49:48,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:49:48,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:49:48,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:49:48,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:48" (1/1) ... [2022-10-16 14:49:48,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46475cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:48, skipping insertion in model container [2022-10-16 14:49:48,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:48" (1/1) ... [2022-10-16 14:49:48,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:49:48,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:49:49,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:49:49,065 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:49:49,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:49:49,109 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:49:49,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49 WrapperNode [2022-10-16 14:49:49,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:49:49,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:49:49,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:49:49,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:49:49,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,160 INFO L138 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2022-10-16 14:49:49,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:49:49,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:49:49,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:49:49,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:49:49,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,210 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:49:49,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:49:49,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:49:49,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:49:49,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (1/1) ... [2022-10-16 14:49:49,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:49:49,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:49,263 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 14:49:49,279 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 14:49:49,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:49:49,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:49:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:49:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:49:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:49:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:49:49,419 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:49:49,422 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:49:49,548 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:49:49,556 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:49:49,557 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:49:49,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:49 BoogieIcfgContainer [2022-10-16 14:49:49,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:49:49,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:49:49,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:49:49,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:49:49,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:49:48" (1/3) ... [2022-10-16 14:49:49,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27eb801d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:49, skipping insertion in model container [2022-10-16 14:49:49,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:49" (2/3) ... [2022-10-16 14:49:49,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27eb801d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:49, skipping insertion in model container [2022-10-16 14:49:49,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:49" (3/3) ... [2022-10-16 14:49:49,583 INFO L112 eAbstractionObserver]: Analyzing ICFG naturalNumbers1.c [2022-10-16 14:49:49,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:49:49,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 14:49:49,661 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:49:49,671 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;@49f75736, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:49:49,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 14:49:49,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 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 14:49:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:49:49,683 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:49,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:49:49,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 14:49:49,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:49,695 INFO L85 PathProgramCache]: Analyzing trace with hash 28699817, now seen corresponding path program 1 times [2022-10-16 14:49:49,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:49,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119712250] [2022-10-16 14:49:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:49,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:49,971 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 14:49:49,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:49,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119712250] [2022-10-16 14:49:49,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119712250] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:49,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:49,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:49:49,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031859628] [2022-10-16 14:49:49,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:49,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:49:49,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:50,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:49:50,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:49:50,021 INFO L87 Difference]: Start difference. First operand has 13 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 14:49:50,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:50,134 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-10-16 14:49:50,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:49:50,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2022-10-16 14:49:50,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:50,163 INFO L225 Difference]: With dead ends: 28 [2022-10-16 14:49:50,163 INFO L226 Difference]: Without dead ends: 12 [2022-10-16 14:49:50,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:49:50,180 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:50,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 26 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:50,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-10-16 14:49:50,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-10-16 14:49:50,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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 14:49:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-10-16 14:49:50,238 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2022-10-16 14:49:50,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:50,239 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-10-16 14:49:50,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 14:49:50,239 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-10-16 14:49:50,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:49:50,240 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:50,240 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:49:50,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:49:50,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 14:49:50,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:50,243 INFO L85 PathProgramCache]: Analyzing trace with hash 642042466, now seen corresponding path program 1 times [2022-10-16 14:49:50,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:50,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515499973] [2022-10-16 14:49:50,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:50,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:49:50,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:50,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515499973] [2022-10-16 14:49:50,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515499973] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:50,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:50,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:49:50,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421706836] [2022-10-16 14:49:50,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:50,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:49:50,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:50,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:49:50,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:49:50,385 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 14:49:50,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:50,418 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-10-16 14:49:50,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:49:50,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) Word has length 9 [2022-10-16 14:49:50,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:50,420 INFO L225 Difference]: With dead ends: 12 [2022-10-16 14:49:50,420 INFO L226 Difference]: Without dead ends: 11 [2022-10-16 14:49:50,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:49:50,425 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:50,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:49:50,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-10-16 14:49:50,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-10-16 14:49:50,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 14:49:50,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-10-16 14:49:50,434 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2022-10-16 14:49:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:50,434 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-10-16 14:49:50,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 14:49:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-10-16 14:49:50,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:49:50,437 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:50,438 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:49:50,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:49:50,438 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 14:49:50,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:50,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1571519984, now seen corresponding path program 1 times [2022-10-16 14:49:50,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:50,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603036869] [2022-10-16 14:49:50,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:50,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,661 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 14:49:50,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:50,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603036869] [2022-10-16 14:49:50,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603036869] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:49:50,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019639302] [2022-10-16 14:49:50,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:50,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:50,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:50,669 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 14:49:50,688 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 14:49:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:49:50,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:49:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:49:50,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:49:50,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019639302] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:50,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:49:50,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 14:49:50,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771851538] [2022-10-16 14:49:50,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:50,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:49:50,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:50,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:49:50,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:49:50,832 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 14:49:50,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:50,854 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-10-16 14:49:50,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:49:50,855 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), 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) Word has length 10 [2022-10-16 14:49:50,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:50,855 INFO L225 Difference]: With dead ends: 11 [2022-10-16 14:49:50,855 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 14:49:50,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:49:50,858 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:50,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:49:50,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 14:49:50,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 14:49:50,860 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 14:49:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 14:49:50,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-10-16 14:49:50,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:50,861 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 14:49:50,861 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), 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 14:49:50,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 14:49:50,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 14:49:50,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-10-16 14:49:50,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-10-16 14:49:50,908 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 14:49:51,079 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 14:49:51,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 14:49:51,099 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-10-16 14:49:51,099 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 14:49:51,099 INFO L902 garLoopResultBuilder]: At program point L9(lines 1 10) the Hoare annotation is: true [2022-10-16 14:49:51,099 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-10-16 14:49:51,100 INFO L899 garLoopResultBuilder]: For program point L7-1(line 7) no Hoare annotation was computed. [2022-10-16 14:49:51,100 INFO L895 garLoopResultBuilder]: At program point L3-2(lines 3 8) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_areNatural_~i~0#1| 2147483648)) [2022-10-16 14:49:51,100 INFO L899 garLoopResultBuilder]: For program point L3-3(lines 3 8) no Hoare annotation was computed. [2022-10-16 14:49:51,100 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 14:49:51,101 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-10-16 14:49:51,101 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 14:49:51,101 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 14:49:51,101 INFO L902 garLoopResultBuilder]: At program point L16(lines 12 17) the Hoare annotation is: true [2022-10-16 14:49:51,102 INFO L899 garLoopResultBuilder]: For program point L4(lines 4 6) no Hoare annotation was computed. [2022-10-16 14:49:51,106 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-10-16 14:49:51,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 14:49:51,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:49:51 BoogieIcfgContainer [2022-10-16 14:49:51,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 14:49:51,138 INFO L158 Benchmark]: Toolchain (without parser) took 2368.85ms. Allocated memory is still 158.3MB. Free memory was 132.6MB in the beginning and 90.2MB in the end (delta: 42.4MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,141 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 158.3MB. Free memory was 128.8MB in the beginning and 128.7MB in the end (delta: 80.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 14:49:51,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.21ms. Allocated memory is still 158.3MB. Free memory was 132.5MB in the beginning and 123.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.80ms. Allocated memory is still 158.3MB. Free memory was 123.2MB in the beginning and 121.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,151 INFO L158 Benchmark]: Boogie Preprocessor took 53.59ms. Allocated memory is still 158.3MB. Free memory was 121.6MB in the beginning and 120.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,151 INFO L158 Benchmark]: RCFGBuilder took 343.19ms. Allocated memory is still 158.3MB. Free memory was 120.4MB in the beginning and 110.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,152 INFO L158 Benchmark]: TraceAbstraction took 1560.91ms. Allocated memory is still 158.3MB. Free memory was 140.8MB in the beginning and 90.2MB in the end (delta: 50.6MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 158.3MB. Free memory was 128.8MB in the beginning and 128.7MB in the end (delta: 80.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 336.21ms. Allocated memory is still 158.3MB. Free memory was 132.5MB in the beginning and 123.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.80ms. Allocated memory is still 158.3MB. Free memory was 123.2MB in the beginning and 121.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 53.59ms. Allocated memory is still 158.3MB. Free memory was 121.6MB in the beginning and 120.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 343.19ms. Allocated memory is still 158.3MB. Free memory was 120.4MB in the beginning and 110.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1560.91ms. Allocated memory is still 158.3MB. Free memory was 140.8MB in the beginning and 90.2MB in the end (delta: 50.6MB). Peak memory consumption was 50.3MB. 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: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: 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 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 14 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 7 HoareAnnotationTreeSize, 3 FomulaSimplifications, 13 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 1 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 7/11 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 2 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 RESULT: Ultimate proved your program to be correct! [2022-10-16 14:49:51,215 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...