/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_SUM.epf -i ../../../trunk/examples/svcomp/loops/terminator_03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:59:14,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:59:14,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:59:14,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 01:59:14,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:59:14,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:59:14,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:59:14,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:59:14,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:59:14,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:59:14,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:59:14,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:59:14,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:59:14,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:59:14,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:59:14,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:59:14,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 01:59:14,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:59:14,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:59:14,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:59:14,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 01:59:14,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:59:14,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:59:14,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:59:14,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:59:14,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:59:14,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:59:14,407 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:59:14,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:59:14,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:59:14,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:59:14,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:59:14,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:59:14,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:59:14,409 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:59:14,409 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:59:14,409 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:59:14,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:59:14,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:59:14,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:59:14,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:59:14,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:59:14,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:59:14,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:59:14,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:59:14,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:59:14,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:59:14,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:59:14,410 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:59:14,411 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:59:14,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:59:14,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:59:14,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:59:14,415 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:59:14,416 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:59:14,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:59:14,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:59:14,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:59:14,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:59:14,678 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:59:14,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-2.i [2022-01-11 01:59:14,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47f5664c/63b7dbd928cc459daf97dce71094d9e8/FLAG30a314943 [2022-01-11 01:59:15,122 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:59:15,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-2.i [2022-01-11 01:59:15,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47f5664c/63b7dbd928cc459daf97dce71094d9e8/FLAG30a314943 [2022-01-11 01:59:15,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47f5664c/63b7dbd928cc459daf97dce71094d9e8 [2022-01-11 01:59:15,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:59:15,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:59:15,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:59:15,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:59:15,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:59:15,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca4c35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15, skipping insertion in model container [2022-01-11 01:59:15,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:59:15,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:59:15,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-2.i[902,915] [2022-01-11 01:59:15,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:59:15,311 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:59:15,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-2.i[902,915] [2022-01-11 01:59:15,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:59:15,332 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:59:15,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15 WrapperNode [2022-01-11 01:59:15,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:59:15,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:59:15,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:59:15,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:59:15,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,356 INFO L137 Inliner]: procedures = 17, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-01-11 01:59:15,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:59:15,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:59:15,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:59:15,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:59:15,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:59:15,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:59:15,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:59:15,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:59:15,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:59:15,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:59:15,409 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) [2022-01-11 01:59:15,416 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 [2022-01-11 01:59:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:59:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:59:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:59:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:59:15,487 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:59:15,488 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:59:15,570 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:59:15,575 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:59:15,575 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 01:59:15,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:59:15 BoogieIcfgContainer [2022-01-11 01:59:15,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:59:15,577 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:59:15,577 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:59:15,582 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:59:15,585 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:59:15" (1/1) ... [2022-01-11 01:59:15,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:59:15 BasicIcfg [2022-01-11 01:59:15,653 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:59:15,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:59:15,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:59:15,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:59:15,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:59:15" (1/4) ... [2022-01-11 01:59:15,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc8745e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:59:15, skipping insertion in model container [2022-01-11 01:59:15,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:15" (2/4) ... [2022-01-11 01:59:15,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc8745e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:59:15, skipping insertion in model container [2022-01-11 01:59:15,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:59:15" (3/4) ... [2022-01-11 01:59:15,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc8745e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:59:15, skipping insertion in model container [2022-01-11 01:59:15,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:59:15" (4/4) ... [2022-01-11 01:59:15,665 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_03-2.iTransformedIcfg [2022-01-11 01:59:15,669 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:59:15,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 01:59:15,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:59:15,732 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 [2022-01-11 01:59:15,733 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 01:59:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-01-11 01:59:15,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 01:59:15,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:59:15,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:59:15,749 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:59:15,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:59:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash 720266705, now seen corresponding path program 1 times [2022-01-11 01:59:15,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:59:15,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466606371] [2022-01-11 01:59:15,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:59:15,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:59:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:59:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:15,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:59:15,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466606371] [2022-01-11 01:59:15,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466606371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:59:15,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:59:15,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 01:59:15,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118047645] [2022-01-11 01:59:15,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:59:15,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 01:59:15,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:59:16,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 01:59:16,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 01:59:16,025 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-01-11 01:59:16,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:59:16,097 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-01-11 01:59:16,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 01:59:16,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-01-11 01:59:16,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:59:16,120 INFO L225 Difference]: With dead ends: 30 [2022-01-11 01:59:16,120 INFO L226 Difference]: Without dead ends: 9 [2022-01-11 01:59:16,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:59:16,138 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:59:16,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 36 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:59:16,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-11 01:59:16,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-11 01:59:16,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:59:16,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-01-11 01:59:16,165 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-01-11 01:59:16,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:59:16,166 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-01-11 01:59:16,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-01-11 01:59:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-01-11 01:59:16,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-11 01:59:16,167 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:59:16,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:59:16,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:59:16,169 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:59:16,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:59:16,171 INFO L85 PathProgramCache]: Analyzing trace with hash 852447304, now seen corresponding path program 1 times [2022-01-11 01:59:16,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:59:16,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49760684] [2022-01-11 01:59:16,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:59:16,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:59:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:59:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:16,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:59:16,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49760684] [2022-01-11 01:59:16,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49760684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:59:16,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:59:16,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:59:16,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372151052] [2022-01-11 01:59:16,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:59:16,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:59:16,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:59:16,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:59:16,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:59:16,295 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-01-11 01:59:16,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:59:16,347 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2022-01-11 01:59:16,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 01:59:16,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2022-01-11 01:59:16,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:59:16,348 INFO L225 Difference]: With dead ends: 9 [2022-01-11 01:59:16,348 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 01:59:16,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-11 01:59:16,350 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:59:16,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 11 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:59:16,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 01:59:16,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 01:59:16,355 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) [2022-01-11 01:59:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 01:59:16,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-01-11 01:59:16,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:59:16,357 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 01:59:16,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-01-11 01:59:16,358 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 01:59:16,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 01:59:16,361 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 01:59:16,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:59:16,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 01:59:16,389 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 01:59:16,395 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 01:59:16,395 INFO L858 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-01-11 01:59:16,395 INFO L861 garLoopResultBuilder]: At program point L35(lines 25 36) the Hoare annotation is: true [2022-01-11 01:59:16,395 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2022-01-11 01:59:16,396 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 01:59:16,396 INFO L854 garLoopResultBuilder]: At program point L30-2(lines 30 32) the Hoare annotation is: (not (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (* (div |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2147483648) 4294967296))) [2022-01-11 01:59:16,396 INFO L858 garLoopResultBuilder]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2022-01-11 01:59:16,397 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 01:59:16,397 INFO L858 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-01-11 01:59:16,398 INFO L858 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-01-11 01:59:16,398 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) [2022-01-11 01:59:16,399 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-01-11 01:59:16,401 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-11 01:59:16,403 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 01:59:16,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:59:16 BasicIcfg [2022-01-11 01:59:16,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 01:59:16,419 INFO L158 Benchmark]: Toolchain (without parser) took 1276.53ms. Allocated memory is still 179.3MB. Free memory was 128.4MB in the beginning and 109.1MB in the end (delta: 19.3MB). Peak memory consumption was 19.2MB. Max. memory is 8.0GB. [2022-01-11 01:59:16,420 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 01:59:16,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.52ms. Allocated memory is still 179.3MB. Free memory was 128.3MB in the beginning and 154.7MB in the end (delta: -26.5MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-01-11 01:59:16,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.48ms. Allocated memory is still 179.3MB. Free memory was 154.7MB in the beginning and 153.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 01:59:16,421 INFO L158 Benchmark]: Boogie Preprocessor took 16.33ms. Allocated memory is still 179.3MB. Free memory was 153.2MB in the beginning and 152.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 01:59:16,422 INFO L158 Benchmark]: RCFGBuilder took 202.76ms. Allocated memory is still 179.3MB. Free memory was 152.1MB in the beginning and 143.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-11 01:59:16,422 INFO L158 Benchmark]: IcfgTransformer took 75.89ms. Allocated memory is still 179.3MB. Free memory was 143.7MB in the beginning and 140.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 01:59:16,422 INFO L158 Benchmark]: TraceAbstraction took 764.38ms. Allocated memory is still 179.3MB. Free memory was 140.0MB in the beginning and 109.1MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-01-11 01:59:16,431 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 187.52ms. Allocated memory is still 179.3MB. Free memory was 128.3MB in the beginning and 154.7MB in the end (delta: -26.5MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.48ms. Allocated memory is still 179.3MB. Free memory was 154.7MB in the beginning and 153.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.33ms. Allocated memory is still 179.3MB. Free memory was 153.2MB in the beginning and 152.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 202.76ms. Allocated memory is still 179.3MB. Free memory was 152.1MB in the beginning and 143.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * IcfgTransformer took 75.89ms. Allocated memory is still 179.3MB. Free memory was 143.7MB in the beginning and 140.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 764.38ms. Allocated memory is still 179.3MB. Free memory was 140.0MB in the beginning and 109.1MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. 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: 19]: 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 20 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 12 HoareAnnotationTreeSize, 3 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 30]: Loop Invariant Derived loop invariant: !~bvule33(~zero_extendFrom32To33(y), y[31:31] ++ 0bv32) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-11 01:59:16,456 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...