/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/ldv-regression/alias_of_return_2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:42:12,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:42:12,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:42:12,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 17:42:12,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:42:12,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:42:12,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:42:12,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:42:12,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:42:12,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:42:12,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:42:12,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:42:12,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:42:12,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:42:12,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:42:12,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:42:12,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 17:42:12,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:42:12,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:42:12,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:42:12,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:42:12,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:42:12,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:42:12,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:42:12,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:42:12,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:42:12,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:42:12,326 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:42:12,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:42:12,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:42:12,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:42:12,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:42:12,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:42:12,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:42:12,327 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:42:12,327 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:42:12,327 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:42:12,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:42:12,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:42:12,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:42:12,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:42:12,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:42:12,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:42:12,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:42:12,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:42:12,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:42:12,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:42:12,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:42:12,328 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:42:12,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:42:12,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:42:12,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:42:12,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:42:12,330 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:42:12,330 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:42:12,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:42:12,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:42:12,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:42:12,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:42:12,537 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:42:12,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alias_of_return_2.i [2022-01-10 17:42:12,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff0441a92/12a830aa6da84dc38d9985f849e5445c/FLAGf366b4b6e [2022-01-10 17:42:12,992 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:42:12,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alias_of_return_2.i [2022-01-10 17:42:13,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff0441a92/12a830aa6da84dc38d9985f849e5445c/FLAGf366b4b6e [2022-01-10 17:42:13,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff0441a92/12a830aa6da84dc38d9985f849e5445c [2022-01-10 17:42:13,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:42:13,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:42:13,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:42:13,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:42:13,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:42:13,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb1239e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13, skipping insertion in model container [2022-01-10 17:42:13,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:42:13,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:42:13,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alias_of_return_2.i[290,303] [2022-01-10 17:42:13,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:42:13,222 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:42:13,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alias_of_return_2.i[290,303] [2022-01-10 17:42:13,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:42:13,244 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:42:13,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13 WrapperNode [2022-01-10 17:42:13,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:42:13,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:42:13,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:42:13,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:42:13,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,276 INFO L137 Inliner]: procedures = 17, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 35 [2022-01-10 17:42:13,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:42:13,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:42:13,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:42:13,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:42:13,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:42:13,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:42:13,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:42:13,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:42:13,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:42:13,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:42:13,333 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) [2022-01-10 17:42:13,337 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 [2022-01-10 17:42:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:42:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:42:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 17:42:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 17:42:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:42:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:42:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 17:42:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 17:42:13,408 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:42:13,409 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:42:13,532 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:42:13,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:42:13,536 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 17:42:13,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:42:13 BoogieIcfgContainer [2022-01-10 17:42:13,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:42:13,547 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:42:13,547 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:42:13,548 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:42:13,553 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:42:13" (1/1) ... [2022-01-10 17:42:13,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:42:13 BasicIcfg [2022-01-10 17:42:13,624 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:42:13,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:42:13,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:42:13,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:42:13,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:42:13" (1/4) ... [2022-01-10 17:42:13,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bac303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:42:13, skipping insertion in model container [2022-01-10 17:42:13,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:13" (2/4) ... [2022-01-10 17:42:13,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bac303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:42:13, skipping insertion in model container [2022-01-10 17:42:13,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:42:13" (3/4) ... [2022-01-10 17:42:13,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bac303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:42:13, skipping insertion in model container [2022-01-10 17:42:13,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:42:13" (4/4) ... [2022-01-10 17:42:13,629 INFO L111 eAbstractionObserver]: Analyzing ICFG alias_of_return_2.iTransformedIcfg [2022-01-10 17:42:13,643 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:42:13,643 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 17:42:13,681 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:42:13,686 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 17:42:13,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 17:42:13,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-01-10 17:42:13,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 17:42:13,698 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:42:13,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 17:42:13,699 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:42:13,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:42:13,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1628077190, now seen corresponding path program 1 times [2022-01-10 17:42:13,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:42:13,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066489261] [2022-01-10 17:42:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:42:13,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:42:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:42:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:42:13,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:42:13,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066489261] [2022-01-10 17:42:13,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066489261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:42:13,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:42:13,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:42:13,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857372363] [2022-01-10 17:42:13,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:42:13,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:42:13,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:42:13,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:42:13,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:42:13,984 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-01-10 17:42:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:42:14,040 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-01-10 17:42:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:42:14,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 6 [2022-01-10 17:42:14,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:42:14,047 INFO L225 Difference]: With dead ends: 16 [2022-01-10 17:42:14,047 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 17:42:14,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:42:14,054 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:42:14,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:42:14,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 17:42:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 17:42:14,071 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) [2022-01-10 17:42:14,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 17:42:14,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-01-10 17:42:14,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:42:14,073 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 17:42:14,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-01-10 17:42:14,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 17:42:14,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 17:42:14,075 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 17:42:14,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:42:14,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 17:42:14,094 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 17:42:14,094 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 17:42:14,094 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 20) no Hoare annotation was computed. [2022-01-10 17:42:14,094 INFO L854 garLoopResultBuilder]: At program point L19(lines 14 21) the Hoare annotation is: (and (<= |ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt| |ULTIMATE.start_ULTIMATE.start_return_self_#res#1.baseInt|) (= (+ |ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt| (* (- 1) |ULTIMATE.start_ULTIMATE.start_return_self_~p#1.baseInt|)) 0) (<= |ULTIMATE.start_ULTIMATE.start_return_self_#res#1.baseInt| |ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (<= |ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0) (<= |ULTIMATE.start_ULTIMATE.start_return_self_~p#1.offsetInt| |ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) (<= |ULTIMATE.start_ULTIMATE.start_return_self_#res#1.offsetInt| |ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|)) [2022-01-10 17:42:14,094 INFO L858 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-01-10 17:42:14,094 INFO L858 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-01-10 17:42:14,094 INFO L858 garLoopResultBuilder]: For program point L36-2(line 36) no Hoare annotation was computed. [2022-01-10 17:42:14,095 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2022-01-10 17:42:14,095 INFO L858 garLoopResultBuilder]: For program point L9(lines 9 10) no Hoare annotation was computed. [2022-01-10 17:42:14,095 INFO L858 garLoopResultBuilder]: For program point L23(lines 23 37) no Hoare annotation was computed. [2022-01-10 17:42:14,095 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 17:42:14,095 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 17:42:14,097 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-10 17:42:14,098 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 17:42:14,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:42:14 BasicIcfg [2022-01-10 17:42:14,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 17:42:14,111 INFO L158 Benchmark]: Toolchain (without parser) took 1084.84ms. Allocated memory is still 162.5MB. Free memory was 110.2MB in the beginning and 91.0MB in the end (delta: 19.2MB). Peak memory consumption was 20.7MB. Max. memory is 8.0GB. [2022-01-10 17:42:14,111 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 162.5MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 17:42:14,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.60ms. Allocated memory is still 162.5MB. Free memory was 110.0MB in the beginning and 136.6MB in the end (delta: -26.6MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. [2022-01-10 17:42:14,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.74ms. Allocated memory is still 162.5MB. Free memory was 136.6MB in the beginning and 135.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 17:42:14,112 INFO L158 Benchmark]: Boogie Preprocessor took 24.01ms. Allocated memory is still 162.5MB. Free memory was 135.0MB in the beginning and 134.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 17:42:14,112 INFO L158 Benchmark]: RCFGBuilder took 241.95ms. Allocated memory is still 162.5MB. Free memory was 134.0MB in the beginning and 124.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 17:42:14,113 INFO L158 Benchmark]: IcfgTransformer took 76.67ms. Allocated memory is still 162.5MB. Free memory was 124.5MB in the beginning and 121.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 17:42:14,113 INFO L158 Benchmark]: TraceAbstraction took 485.36ms. Allocated memory is still 162.5MB. Free memory was 121.0MB in the beginning and 91.0MB in the end (delta: 30.0MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-01-10 17:42:14,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 162.5MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 215.60ms. Allocated memory is still 162.5MB. Free memory was 110.0MB in the beginning and 136.6MB in the end (delta: -26.6MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.74ms. Allocated memory is still 162.5MB. Free memory was 136.6MB in the beginning and 135.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.01ms. Allocated memory is still 162.5MB. Free memory was 135.0MB in the beginning and 134.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 241.95ms. Allocated memory is still 162.5MB. Free memory was 134.0MB in the beginning and 124.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 76.67ms. Allocated memory is still 162.5MB. Free memory was 124.5MB in the beginning and 121.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 485.36ms. Allocated memory is still 162.5MB. Free memory was 121.0MB in the beginning and 91.0MB in the end (delta: 30.0MB). Peak memory consumption was 30.4MB. 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: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 23 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((~bvule64(\result, a) && ~bvule64(\result, a)) && 0bv129 == ~bvadd32(~zero_extendFrom64To129(a), ~sign_extendFrom8To32(~bvmul64(340282366920938463463374607431768211455bv128, ~zero_extendFrom64To128(p))))) && ~bvule64(p, a)) && ~bvule64(a, \result)) && ~bvule64(a, 0bv64) RESULT: Ultimate proved your program to be correct! [2022-01-10 17:42:14,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...