/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/termination-memory-alloca/Urban-alloca.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:54:15,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:54:15,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:54:15,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:54:15,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:54:15,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:54:15,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:54:15,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:54:15,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:54:15,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:54:15,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:54:15,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:54:15,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:54:15,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:54:15,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:54:15,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:54:15,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:54:15,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:54:15,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:54:15,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:54:15,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:54:15,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:54:15,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:54:15,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:54:15,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:54:15,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:54:15,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:54:15,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:54:15,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:54:15,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:54:15,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:54:15,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:54:15,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:54:15,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:54:15,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:54:15,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:54:15,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:54:15,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:54:15,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:54:15,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:54:15,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:54:15,196 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 17:54:15,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:54:15,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:54:15,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:54:15,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:54:15,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:54:15,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:54:15,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:54:15,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:54:15,250 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:54:15,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:54:15,250 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:54:15,250 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:54:15,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:54:15,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:54:15,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:54:15,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:54:15,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:54:15,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:54:15,252 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:54:15,252 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:54:15,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:54:15,252 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:54:15,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:54:15,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:54:15,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:54:15,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:54:15,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:54:15,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:54:15,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:54:15,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:54:15,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:54:15,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:54:15,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:54:15,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:54:15,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:54:15,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:54:15,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:54:15,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:54:15,695 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:54:15,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2022-10-16 17:54:15,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ee704a48/eb083270b05940e9863715333a51ae79/FLAG7ff8d2f6e [2022-10-16 17:54:16,554 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:54:16,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2022-10-16 17:54:16,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ee704a48/eb083270b05940e9863715333a51ae79/FLAG7ff8d2f6e [2022-10-16 17:54:16,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ee704a48/eb083270b05940e9863715333a51ae79 [2022-10-16 17:54:16,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:54:16,871 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:54:16,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:54:16,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:54:16,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:54:16,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:54:16" (1/1) ... [2022-10-16 17:54:16,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa32c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:16, skipping insertion in model container [2022-10-16 17:54:16,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:54:16" (1/1) ... [2022-10-16 17:54:16,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:54:16,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:54:17,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:54:17,376 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:54:17,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:54:17,488 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:54:17,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17 WrapperNode [2022-10-16 17:54:17,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:54:17,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:54:17,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:54:17,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:54:17,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,544 INFO L138 Inliner]: procedures = 110, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2022-10-16 17:54:17,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:54:17,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:54:17,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:54:17,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:54:17,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,572 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:54:17,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:54:17,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:54:17,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:54:17,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (1/1) ... [2022-10-16 17:54:17,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:54:17,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:54:17,620 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 17:54:17,633 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 17:54:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:54:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:54:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 17:54:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:54:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:54:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:54:17,807 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:54:17,809 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:54:18,069 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:54:18,079 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:54:18,079 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:54:18,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:54:18 BoogieIcfgContainer [2022-10-16 17:54:18,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:54:18,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:54:18,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:54:18,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:54:18,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:54:16" (1/3) ... [2022-10-16 17:54:18,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731bb139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:54:18, skipping insertion in model container [2022-10-16 17:54:18,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:54:17" (2/3) ... [2022-10-16 17:54:18,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731bb139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:54:18, skipping insertion in model container [2022-10-16 17:54:18,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:54:18" (3/3) ... [2022-10-16 17:54:18,098 INFO L112 eAbstractionObserver]: Analyzing ICFG Urban-alloca.i [2022-10-16 17:54:18,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:54:18,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-16 17:54:18,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:54:18,237 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;@3e4aa911, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:54:18,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-16 17:54:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 27 states have internal predecessors, (33), 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 17:54:18,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 17:54:18,271 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:54:18,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:54:18,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 17:54:18,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:54:18,284 INFO L85 PathProgramCache]: Analyzing trace with hash 177749354, now seen corresponding path program 1 times [2022-10-16 17:54:18,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:54:18,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302226979] [2022-10-16 17:54:18,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:54:18,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:54:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:54:18,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 17:54:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:54:18,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 17:54:18,609 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 17:54:18,611 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-10-16 17:54:18,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-10-16 17:54:18,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-10-16 17:54:18,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-10-16 17:54:18,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-10-16 17:54:18,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-10-16 17:54:18,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-10-16 17:54:18,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-10-16 17:54:18,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:54:18,625 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-16 17:54:18,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:54:18,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:54:18 BoogieIcfgContainer [2022-10-16 17:54:18,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:54:18,680 INFO L158 Benchmark]: Toolchain (without parser) took 1810.10ms. Allocated memory is still 151.0MB. Free memory was 125.2MB in the beginning and 112.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-10-16 17:54:18,682 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:54:18,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.82ms. Allocated memory is still 151.0MB. Free memory was 125.0MB in the beginning and 110.1MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-16 17:54:18,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.64ms. Allocated memory is still 151.0MB. Free memory was 109.9MB in the beginning and 108.1MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:54:18,693 INFO L158 Benchmark]: Boogie Preprocessor took 30.97ms. Allocated memory is still 151.0MB. Free memory was 108.1MB in the beginning and 107.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:54:18,694 INFO L158 Benchmark]: RCFGBuilder took 506.47ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 129.0MB in the end (delta: -22.2MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-10-16 17:54:18,696 INFO L158 Benchmark]: TraceAbstraction took 587.08ms. Allocated memory is still 151.0MB. Free memory was 127.9MB in the beginning and 112.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-16 17:54:18,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 613.82ms. Allocated memory is still 151.0MB. Free memory was 125.0MB in the beginning and 110.1MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.64ms. Allocated memory is still 151.0MB. Free memory was 109.9MB in the beginning and 108.1MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.97ms. Allocated memory is still 151.0MB. Free memory was 108.1MB in the beginning and 107.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 506.47ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 129.0MB in the end (delta: -22.2MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * TraceAbstraction took 587.08ms. Allocated memory is still 151.0MB. Free memory was 127.9MB in the beginning and 112.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. 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 - CounterExampleResult [Line: 553]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int* x = __builtin_alloca (sizeof(int)); [L549] int* y = __builtin_alloca (sizeof(int)); VAL [__builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={3:0}, x={3:0}, y={2:0}] [L550] EXPR \read(*x) [L550] *x != 0 && *y > 0 [L550] EXPR \read(*y) [L550] *x != 0 && *y > 0 VAL [*x != 0 && *y > 0=1, \read(*x)=2147483649, \read(*y)=5, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={3:0}, x={3:0}, y={2:0}] [L550] COND TRUE *x != 0 && *y > 0 [L551] EXPR \read(*x) VAL [\read(*x)=2147483649, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={3:0}, x={3:0}, y={2:0}] [L551] COND TRUE *x > 0 [L552] COND TRUE __VERIFIER_nondet_int() [L553] EXPR \read(*x) VAL [\read(*x)=2147483649, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={3:0}, x={3:0}, y={2:0}] [L553] *x - 1 VAL [\read(*x)=2147483649, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={3:0}, x={3:0}, y={2:0}] - UnprovableResult [Line: 553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-10-16 17:54:18,767 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...