/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 20:53:07,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 20:53:07,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 20:53:07,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 20:53:07,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 20:53:07,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 20:53:07,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 20:53:07,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 20:53:07,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 20:53:07,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 20:53:07,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 20:53:07,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 20:53:07,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 20:53:07,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 20:53:07,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 20:53:07,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 20:53:07,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 20:53:07,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 20:53:07,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 20:53:07,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 20:53:07,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 20:53:07,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 20:53:07,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 20:53:07,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 20:53:07,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-23 20:53:07,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 20:53:07,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 20:53:07,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 20:53:07,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-23 20:53:07,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 20:53:07,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 20:53:07,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-23 20:53:07,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-23 20:53:07,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-23 20:53:07,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-23 20:53:07,302 INFO L138 SettingsManager]: * Use SBE=true [2022-02-23 20:53:07,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 20:53:07,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 20:53:07,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 20:53:07,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 20:53:07,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 20:53:07,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 20:53:07,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 20:53:07,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 20:53:07,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 20:53:07,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 20:53:07,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 20:53:07,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 20:53:07,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:53:07,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 20:53:07,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-23 20:53:07,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-23 20:53:07,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 20:53:07,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-23 20:53:07,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-23 20:53:07,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-23 20:53:07,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-23 20:53:07,306 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 20:53:07,306 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 20:53:07,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 20:53:07,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 20:53:07,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 20:53:07,520 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 20:53:07,521 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 20:53:07,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2022-02-23 20:53:07,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1b2f152/b430fd1c2ae544d09b772cb2ee3dcbfe/FLAGc883f4c36 [2022-02-23 20:53:07,872 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 20:53:07,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2022-02-23 20:53:07,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1b2f152/b430fd1c2ae544d09b772cb2ee3dcbfe/FLAGc883f4c36 [2022-02-23 20:53:08,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1b2f152/b430fd1c2ae544d09b772cb2ee3dcbfe [2022-02-23 20:53:08,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 20:53:08,303 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 20:53:08,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 20:53:08,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 20:53:08,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 20:53:08,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c9f44bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08, skipping insertion in model container [2022-02-23 20:53:08,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 20:53:08,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 20:53:08,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2022-02-23 20:53:08,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:53:08,494 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 20:53:08,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2022-02-23 20:53:08,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:53:08,531 INFO L208 MainTranslator]: Completed translation [2022-02-23 20:53:08,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08 WrapperNode [2022-02-23 20:53:08,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 20:53:08,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 20:53:08,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 20:53:08,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 20:53:08,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 20:53:08,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 20:53:08,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 20:53:08,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 20:53:08,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:08,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:53:08,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:53:08,600 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) [2022-02-23 20:53:08,626 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 [2022-02-23 20:53:08,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 20:53:08,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 20:53:08,645 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 20:53:08,645 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-23 20:53:08,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 20:53:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 20:53:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 20:53:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 20:53:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 20:53:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-23 20:53:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-23 20:53:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 20:53:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 20:53:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 20:53:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 20:53:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 20:53:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 20:53:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 20:53:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 20:53:08,698 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 20:53:08,700 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 20:53:08,779 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 20:53:08,784 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 20:53:08,785 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-23 20:53:08,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:53:08 BoogieIcfgContainer [2022-02-23 20:53:08,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 20:53:08,787 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 20:53:08,787 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 20:53:08,788 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 20:53:08,790 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:53:08" (1/1) ... [2022-02-23 20:53:10,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:53:10 BasicIcfg [2022-02-23 20:53:10,433 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 20:53:10,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 20:53:10,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 20:53:10,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 20:53:10,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 08:53:08" (1/4) ... [2022-02-23 20:53:10,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661a6024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:53:10, skipping insertion in model container [2022-02-23 20:53:10,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:53:08" (2/4) ... [2022-02-23 20:53:10,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661a6024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:53:10, skipping insertion in model container [2022-02-23 20:53:10,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:53:08" (3/4) ... [2022-02-23 20:53:10,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661a6024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:53:10, skipping insertion in model container [2022-02-23 20:53:10,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:53:10" (4/4) ... [2022-02-23 20:53:10,440 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.cqvasr [2022-02-23 20:53:10,444 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-23 20:53:10,444 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 20:53:10,491 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 20:53:10,498 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=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, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 20:53:10,498 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 20:53:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-23 20:53:10,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-02-23 20:53:10,510 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:53:10,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:53:10,511 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:53:10,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:53:10,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1936523046, now seen corresponding path program 1 times [2022-02-23 20:53:10,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:53:10,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124165104] [2022-02-23 20:53:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:53:10,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:53:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:53:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:53:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:53:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:53:10,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:53:10,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124165104] [2022-02-23 20:53:10,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124165104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:53:10,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:53:10,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:53:10,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152204895] [2022-02-23 20:53:10,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:53:10,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:53:10,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:53:10,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:53:10,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:53:10,817 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:53:11,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:53:11,001 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2022-02-23 20:53:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:53:11,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-02-23 20:53:11,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:53:11,014 INFO L225 Difference]: With dead ends: 32 [2022-02-23 20:53:11,015 INFO L226 Difference]: Without dead ends: 14 [2022-02-23 20:53:11,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-02-23 20:53:11,024 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:53:11,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 44 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 20:53:11,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-02-23 20:53:11,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-02-23 20:53:11,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:53:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-02-23 20:53:11,053 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2022-02-23 20:53:11,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:53:11,054 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-02-23 20:53:11,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:53:11,054 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-02-23 20:53:11,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-23 20:53:11,055 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:53:11,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:53:11,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 20:53:11,057 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:53:11,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:53:11,059 INFO L85 PathProgramCache]: Analyzing trace with hash 96372484, now seen corresponding path program 1 times [2022-02-23 20:53:11,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:53:11,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762287] [2022-02-23 20:53:11,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:53:11,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:53:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:53:11,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:53:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:53:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:53:11,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:53:11,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762287] [2022-02-23 20:53:11,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762287] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:53:11,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477394513] [2022-02-23 20:53:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:53:11,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:53:11,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:53:11,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:53:11,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 20:53:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:53:11,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-23 20:53:11,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:53:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:53:11,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:53:11,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:53:11,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477394513] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 20:53:11,537 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 20:53:11,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-02-23 20:53:11,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669437816] [2022-02-23 20:53:11,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 20:53:11,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-23 20:53:11,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:53:11,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-23 20:53:11,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-02-23 20:53:11,540 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:53:11,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:53:11,622 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-02-23 20:53:11,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 20:53:11,623 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-02-23 20:53:11,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:53:11,623 INFO L225 Difference]: With dead ends: 14 [2022-02-23 20:53:11,623 INFO L226 Difference]: Without dead ends: 0 [2022-02-23 20:53:11,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-02-23 20:53:11,625 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:53:11,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 40 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 20:53:11,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-23 20:53:11,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-23 20:53:11,626 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) [2022-02-23 20:53:11,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-23 20:53:11,627 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-02-23 20:53:11,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:53:11,627 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-23 20:53:11,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:53:11,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-23 20:53:11,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-23 20:53:11,629 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-23 20:53:11,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-23 20:53:11,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:53:11,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-23 20:53:11,883 INFO L854 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_72~0)| ~__return_72~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-02-23 20:53:11,883 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-02-23 20:53:11,883 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-02-23 20:53:11,883 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-02-23 20:53:11,884 INFO L861 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-02-23 20:53:11,884 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-02-23 20:53:11,884 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-02-23 20:53:11,884 INFO L854 garLoopResultBuilder]: At program point mainENTRY(lines 13 70) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2022-02-23 20:53:11,884 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 69) no Hoare annotation was computed. [2022-02-23 20:53:11,884 INFO L858 garLoopResultBuilder]: For program point mainFINAL(lines 13 70) no Hoare annotation was computed. [2022-02-23 20:53:11,884 INFO L858 garLoopResultBuilder]: For program point L25(lines 25 68) no Hoare annotation was computed. [2022-02-23 20:53:11,884 INFO L858 garLoopResultBuilder]: For program point mainEXIT(lines 13 70) no Hoare annotation was computed. [2022-02-23 20:53:11,885 INFO L854 garLoopResultBuilder]: At program point L40(lines 30 68) the Hoare annotation is: (let ((.cse1 (+ main_~main__j~0 main_~main__x~0)) (.cse0 (+ main_~main__i~0 main_~main__y~0))) (and (<= .cse0 .cse1) (= |old(~__return_72~0)| ~__return_72~0) (<= .cse1 .cse0))) [2022-02-23 20:53:11,885 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 66) no Hoare annotation was computed. [2022-02-23 20:53:11,885 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 60) no Hoare annotation was computed. [2022-02-23 20:53:11,885 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-02-23 20:53:11,885 INFO L858 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 53) no Hoare annotation was computed. [2022-02-23 20:53:11,891 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-23 20:53:11,892 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-23 20:53:11,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:53:11 BasicIcfg [2022-02-23 20:53:11,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-23 20:53:11,908 INFO L158 Benchmark]: Toolchain (without parser) took 3604.72ms. Allocated memory was 192.9MB in the beginning and 288.4MB in the end (delta: 95.4MB). Free memory was 137.0MB in the beginning and 156.1MB in the end (delta: -19.2MB). Peak memory consumption was 76.8MB. Max. memory is 8.0GB. [2022-02-23 20:53:11,912 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-23 20:53:11,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.38ms. Allocated memory is still 192.9MB. Free memory was 136.9MB in the beginning and 162.8MB in the end (delta: -25.9MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-02-23 20:53:11,915 INFO L158 Benchmark]: Boogie Preprocessor took 36.31ms. Allocated memory is still 192.9MB. Free memory was 162.8MB in the beginning and 161.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-23 20:53:11,915 INFO L158 Benchmark]: RCFGBuilder took 215.87ms. Allocated memory is still 192.9MB. Free memory was 161.8MB in the beginning and 151.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-23 20:53:11,916 INFO L158 Benchmark]: IcfgTransformer took 1646.35ms. Allocated memory was 192.9MB in the beginning and 288.4MB in the end (delta: 95.4MB). Free memory was 151.6MB in the beginning and 231.2MB in the end (delta: -79.5MB). Peak memory consumption was 44.6MB. Max. memory is 8.0GB. [2022-02-23 20:53:11,916 INFO L158 Benchmark]: TraceAbstraction took 1472.30ms. Allocated memory is still 288.4MB. Free memory was 230.6MB in the beginning and 156.1MB in the end (delta: 74.5MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2022-02-23 20:53:11,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 225.38ms. Allocated memory is still 192.9MB. Free memory was 136.9MB in the beginning and 162.8MB in the end (delta: -25.9MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.31ms. Allocated memory is still 192.9MB. Free memory was 162.8MB in the beginning and 161.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 215.87ms. Allocated memory is still 192.9MB. Free memory was 161.8MB in the beginning and 151.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 1646.35ms. Allocated memory was 192.9MB in the beginning and 288.4MB in the end (delta: 95.4MB). Free memory was 151.6MB in the beginning and 231.2MB in the end (delta: -79.5MB). Peak memory consumption was 44.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1472.30ms. Allocated memory is still 288.4MB. Free memory was 230.6MB in the beginning and 156.1MB in the end (delta: 74.5MB). Peak memory consumption was 74.4MB. 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: 53]: 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 3 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 25 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 36 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 5 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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: 30]: Loop Invariant Derived loop invariant: (main__i + main__y <= main__j + main__x && \old(__return_72) == __return_72) && main__j + main__x <= main__i + main__y RESULT: Ultimate proved your program to be correct! [2022-02-23 20:53:11,961 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...