/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_BITWISE.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:35:13,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:35:13,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:35:13,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 12:35:13,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:35:13,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:35:13,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:35:13,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:35:13,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:35:13,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:35:13,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:35:13,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:35:13,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:35:13,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:35:13,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:35:13,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:35:13,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 12:35:13,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:35:13,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:35:13,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:35:13,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:35:13,348 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:35:13,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:35:13,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:35:13,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:35:13,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:35:13,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:35:13,350 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:35:13,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:35:13,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:35:13,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:35:13,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:35:13,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:35:13,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:35:13,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:35:13,352 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:35:13,352 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:35:13,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:35:13,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:35:13,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:35:13,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:35:13,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:35:13,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:35:13,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:35:13,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:35:13,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:35:13,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:35:13,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:35:13,353 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:35:13,353 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:35:13,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:35:13,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:35:13,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:35:13,354 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:35:13,355 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:35:13,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:35:13,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:35:13,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:35:13,612 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:35:13,613 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:35:13,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2022-01-10 12:35:13,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254393e04/9d7790d0eb2d4b898f085b119e0bd981/FLAG3661bb3a9 [2022-01-10 12:35:14,087 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:35:14,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2022-01-10 12:35:14,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254393e04/9d7790d0eb2d4b898f085b119e0bd981/FLAG3661bb3a9 [2022-01-10 12:35:14,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254393e04/9d7790d0eb2d4b898f085b119e0bd981 [2022-01-10 12:35:14,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:35:14,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:35:14,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:35:14,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:35:14,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:35:14,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de413ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14, skipping insertion in model container [2022-01-10 12:35:14,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:35:14,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:35:14,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c[628,641] [2022-01-10 12:35:14,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:35:14,307 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:35:14,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c[628,641] [2022-01-10 12:35:14,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:35:14,340 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:35:14,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14 WrapperNode [2022-01-10 12:35:14,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:35:14,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:35:14,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:35:14,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:35:14,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,369 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-01-10 12:35:14,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:35:14,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:35:14,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:35:14,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:35:14,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:35:14,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:35:14,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:35:14,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:35:14,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:35:14,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:35:14,430 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 12:35:14,432 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 12:35:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:35:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:35:14,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:35:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:35:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-01-10 12:35:14,460 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-01-10 12:35:14,507 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:35:14,508 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:35:14,632 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:35:14,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:35:14,636 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 12:35:14,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:35:14 BoogieIcfgContainer [2022-01-10 12:35:14,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:35:14,639 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:35:14,639 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:35:14,641 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:35:14,644 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:35:14" (1/1) ... [2022-01-10 12:35:14,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:35:14 BasicIcfg [2022-01-10 12:35:14,702 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:35:14,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:35:14,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:35:14,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:35:14,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:35:14" (1/4) ... [2022-01-10 12:35:14,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3d4c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:35:14, skipping insertion in model container [2022-01-10 12:35:14,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:35:14" (2/4) ... [2022-01-10 12:35:14,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3d4c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:35:14, skipping insertion in model container [2022-01-10 12:35:14,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:35:14" (3/4) ... [2022-01-10 12:35:14,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3d4c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:35:14, skipping insertion in model container [2022-01-10 12:35:14,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:35:14" (4/4) ... [2022-01-10 12:35:14,707 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.cTransformedIcfg [2022-01-10 12:35:14,711 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:35:14,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 12:35:14,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:35:14,791 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 12:35:14,792 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 12:35:14,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 12:35:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 12:35:14,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:35:14,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:35:14,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:35:14,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:35:14,846 INFO L85 PathProgramCache]: Analyzing trace with hash 534385216, now seen corresponding path program 1 times [2022-01-10 12:35:14,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:35:14,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736934792] [2022-01-10 12:35:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:35:14,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:35:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 12:35:14,986 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 12:35:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 12:35:15,044 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 12:35:15,046 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 12:35:15,049 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 12:35:15,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:35:15,055 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-10 12:35:15,057 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 12:35:15,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:35:15 BasicIcfg [2022-01-10 12:35:15,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 12:35:15,096 INFO L158 Benchmark]: Toolchain (without parser) took 987.10ms. Allocated memory is still 185.6MB. Free memory was 131.3MB in the beginning and 128.5MB in the end (delta: 2.8MB). Peak memory consumption was 3.9MB. Max. memory is 8.0GB. [2022-01-10 12:35:15,098 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 12:35:15,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.84ms. Allocated memory is still 185.6MB. Free memory was 131.2MB in the beginning and 157.8MB in the end (delta: -26.7MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. [2022-01-10 12:35:15,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.82ms. Allocated memory is still 185.6MB. Free memory was 157.8MB in the beginning and 156.7MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 12:35:15,100 INFO L158 Benchmark]: Boogie Preprocessor took 30.29ms. Allocated memory is still 185.6MB. Free memory was 156.7MB in the beginning and 155.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 12:35:15,103 INFO L158 Benchmark]: RCFGBuilder took 236.71ms. Allocated memory is still 185.6MB. Free memory was 155.7MB in the beginning and 146.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 12:35:15,104 INFO L158 Benchmark]: IcfgTransformer took 63.19ms. Allocated memory is still 185.6MB. Free memory was 146.3MB in the beginning and 143.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 12:35:15,105 INFO L158 Benchmark]: TraceAbstraction took 392.36ms. Allocated memory is still 185.6MB. Free memory was 143.2MB in the beginning and 128.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-10 12:35:15,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.84ms. Allocated memory is still 185.6MB. Free memory was 131.2MB in the beginning and 157.8MB in the end (delta: -26.7MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.82ms. Allocated memory is still 185.6MB. Free memory was 157.8MB in the beginning and 156.7MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.29ms. Allocated memory is still 185.6MB. Free memory was 156.7MB in the beginning and 155.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 236.71ms. Allocated memory is still 185.6MB. Free memory was 155.7MB in the beginning and 146.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 63.19ms. Allocated memory is still 185.6MB. Free memory was 146.3MB in the beginning and 143.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 392.36ms. Allocated memory is still 185.6MB. Free memory was 143.2MB in the beginning and 128.5MB in the end (delta: 14.7MB). 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] unsigned int a = __VERIFIER_nondet_uint(); [L16] unsigned int b = __VERIFIER_nondet_uint(); [L17] CALL, EXPR sum(a, b) VAL [\old(m)=0, \old(n)=0] [L7] COND TRUE n == 0 [L8] return m; VAL [\old(m)=0, \old(n)=0, \result=0, m=0, n=0] [L17] RET, EXPR sum(a, b) VAL [a=0, b=0, sum(a, b)=0] [L17] unsigned int result = sum(a, b); [L18] COND TRUE result == a + b VAL [a=0, b=0, result=0] [L19] reach_error() VAL [a=0, b=0, result=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 10 NumberOfCodeBlocks, 10 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! [2022-01-10 12:35:15,154 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...