./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 14:54:48,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 14:54:48,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 14:54:48,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 14:54:48,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 14:54:48,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 14:54:48,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 14:54:48,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 14:54:48,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 14:54:48,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 14:54:48,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 14:54:48,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 14:54:48,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 14:54:48,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 14:54:48,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 14:54:48,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 14:54:48,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 14:54:48,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 14:54:48,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 14:54:48,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 14:54:48,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 14:54:48,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 14:54:48,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 14:54:48,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 14:54:48,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 14:54:48,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 14:54:48,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 14:54:48,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 14:54:48,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 14:54:48,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 14:54:48,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 14:54:48,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 14:54:48,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 14:54:48,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 14:54:48,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 14:54:48,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 14:54:48,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 14:54:48,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 14:54:48,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 14:54:48,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 14:54:48,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 14:54:48,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-07-06 14:54:48,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 14:54:48,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 14:54:48,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 14:54:48,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 14:54:48,416 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 14:54:48,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 14:54:48,416 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 14:54:48,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 14:54:48,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 14:54:48,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 14:54:48,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 14:54:48,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 14:54:48,417 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 14:54:48,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 14:54:48,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 14:54:48,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 14:54:48,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 14:54:48,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 14:54:48,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 14:54:48,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 14:54:48,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 14:54:48,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 14:54:48,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 14:54:48,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 14:54:48,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 14:54:48,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 14:54:48,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 14:54:48,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc [2021-07-06 14:54:48,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 14:54:48,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 14:54:48,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 14:54:48,662 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 14:54:48,662 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 14:54:48,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-07-06 14:54:48,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c72d568/cfd221dc9872406bb5ef6c8bb964d85b/FLAG2f3628fea [2021-07-06 14:54:49,043 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 14:54:49,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-07-06 14:54:49,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c72d568/cfd221dc9872406bb5ef6c8bb964d85b/FLAG2f3628fea [2021-07-06 14:54:49,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c72d568/cfd221dc9872406bb5ef6c8bb964d85b [2021-07-06 14:54:49,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 14:54:49,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 14:54:49,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 14:54:49,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 14:54:49,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 14:54:49,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73add139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49, skipping insertion in model container [2021-07-06 14:54:49,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 14:54:49,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 14:54:49,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 14:54:49,199 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 14:54:49,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 14:54:49,217 INFO L208 MainTranslator]: Completed translation [2021-07-06 14:54:49,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49 WrapperNode [2021-07-06 14:54:49,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 14:54:49,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 14:54:49,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 14:54:49,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 14:54:49,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 14:54:49,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 14:54:49,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 14:54:49,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 14:54:49,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 14:54:49,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 14:54:49,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 14:54:49,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 14:54:49,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (1/1) ... [2021-07-06 14:54:49,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 14:54:49,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 14:54:49,296 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) [2021-07-06 14:54:49,320 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 [2021-07-06 14:54:49,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 14:54:49,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 14:54:49,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 14:54:49,471 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 14:54:49,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 02:54:49 BoogieIcfgContainer [2021-07-06 14:54:49,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 14:54:49,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 14:54:49,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 14:54:49,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 14:54:49,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 02:54:49" (1/3) ... [2021-07-06 14:54:49,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d94fea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 02:54:49, skipping insertion in model container [2021-07-06 14:54:49,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:49" (2/3) ... [2021-07-06 14:54:49,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d94fea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 02:54:49, skipping insertion in model container [2021-07-06 14:54:49,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 02:54:49" (3/3) ... [2021-07-06 14:54:49,479 INFO L111 eAbstractionObserver]: Analyzing ICFG Cairo_step2-1.c [2021-07-06 14:54:49,483 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 14:54:49,484 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-06 14:54:49,521 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:54:49,526 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 14:54:49,527 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:54:49,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:54:49,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-06 14:54:49,544 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:54:49,545 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-06 14:54:49,545 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:54:49,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:54:49,551 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2021-07-06 14:54:49,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:54:49,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604949214] [2021-07-06 14:54:49,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:54:49,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:54:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:54:49,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:49,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:49,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 14:54:49,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:54:49,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604949214] [2021-07-06 14:54:49,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604949214] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:54:49,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:54:49,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 14:54:49,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606731686] [2021-07-06 14:54:49,666 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:54:49,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:54:49,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:54:49,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:54:49,678 INFO L87 Difference]: Start difference. First operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-07-06 14:54:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:54:49,742 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-07-06 14:54:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:54:49,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-07-06 14:54:49,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:54:49,747 INFO L225 Difference]: With dead ends: 15 [2021-07-06 14:54:49,747 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:54:49,749 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:54:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:54:49,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:54:49,763 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) [2021-07-06 14:54:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:54:49,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-07-06 14:54:49,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:54:49,764 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:54:49,764 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-07-06 14:54:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:54:49,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:54:49,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:54:49,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:54:49,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:54:49,796 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-07-06 14:54:49,796 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:54:49,796 INFO L762 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2021-07-06 14:54:49,796 INFO L762 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-07-06 14:54:49,796 INFO L762 garLoopResultBuilder]: For program point L15(lines 15 19) no Hoare annotation was computed. [2021-07-06 14:54:49,797 INFO L762 garLoopResultBuilder]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2021-07-06 14:54:49,797 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-07-06 14:54:49,797 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:54:49,797 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:54:49,797 INFO L758 garLoopResultBuilder]: At program point L20(lines 11 21) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 14:54:49,798 INFO L758 garLoopResultBuilder]: At program point L16-2(lines 16 18) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 14:54:49,798 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 14:54:49,798 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:54:49,802 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (1/2) [2021-07-06 14:54:49,804 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:54:49,805 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 14:54:49,806 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:54:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:54:49,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-06 14:54:49,807 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:54:49,807 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-06 14:54:49,808 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:54:49,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:54:49,809 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2021-07-06 14:54:49,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:54:49,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531467945] [2021-07-06 14:54:49,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:54:49,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:54:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:54:49,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:49,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:54:49,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:49,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:49,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 14:54:49,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:54:49,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531467945] [2021-07-06 14:54:49,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531467945] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:54:49,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:54:49,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 14:54:49,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737137915] [2021-07-06 14:54:49,843 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:54:49,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:54:49,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:54:49,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:54:49,845 INFO L87 Difference]: Start difference. First operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-07-06 14:54:49,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:54:49,890 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-07-06 14:54:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:54:49,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-07-06 14:54:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:54:49,893 INFO L225 Difference]: With dead ends: 19 [2021-07-06 14:54:49,893 INFO L226 Difference]: Without dead ends: 9 [2021-07-06 14:54:49,894 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:54:49,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-07-06 14:54:49,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-07-06 14:54:49,899 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) [2021-07-06 14:54:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-07-06 14:54:49,900 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-07-06 14:54:49,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:54:49,902 INFO L442 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-07-06 14:54:49,903 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-07-06 14:54:49,903 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-07-06 14:54:49,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-06 14:54:49,904 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:54:49,904 INFO L525 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-07-06 14:54:49,904 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-06 14:54:49,905 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:54:49,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:54:49,910 INFO L82 PathProgramCache]: Analyzing trace with hash -423045501, now seen corresponding path program 1 times [2021-07-06 14:54:49,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:54:49,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297746384] [2021-07-06 14:54:49,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:54:49,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:54:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:54:49,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:49,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:54:49,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:49,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:49,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:49,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 14:54:49,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:54:49,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297746384] [2021-07-06 14:54:49,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297746384] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-06 14:54:49,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088552563] [2021-07-06 14:54:49,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:54:49,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 14:54:49,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 14:54:49,969 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) [2021-07-06 14:54:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:54:49,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-06 14:54:50,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 14:54:50,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-06 14:54:50,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:54:50,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:54:50,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:54:50,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:54:50,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:50,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 14:54:50,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:50,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-06 14:54:50,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 14:54:50,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:50,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-06 14:54:50,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:50,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:50,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 14:54:50,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088552563] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-06 14:54:50,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-06 14:54:50,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-06 14:54:50,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437883934] [2021-07-06 14:54:50,073 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 14:54:50,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:54:50,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 14:54:50,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 14:54:50,075 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-07-06 14:54:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:54:50,092 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-07-06 14:54:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-06 14:54:50,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2021-07-06 14:54:50,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:54:50,093 INFO L225 Difference]: With dead ends: 9 [2021-07-06 14:54:50,093 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:54:50,094 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 14:54:50,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:54:50,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:54:50,094 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) [2021-07-06 14:54:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:54:50,095 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-07-06 14:54:50,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:54:50,095 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:54:50,095 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-07-06 14:54:50,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:54:50,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:54:50,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:54:50,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:54:50,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:54:50,110 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-07-06 14:54:50,110 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:54:50,111 INFO L762 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2021-07-06 14:54:50,111 INFO L762 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-07-06 14:54:50,111 INFO L762 garLoopResultBuilder]: For program point L15(lines 15 19) no Hoare annotation was computed. [2021-07-06 14:54:50,111 INFO L762 garLoopResultBuilder]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2021-07-06 14:54:50,111 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-07-06 14:54:50,111 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:54:50,111 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:54:50,112 INFO L758 garLoopResultBuilder]: At program point L20(lines 11 21) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 14:54:50,113 INFO L758 garLoopResultBuilder]: At program point L16-2(lines 16 18) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~x~0 1)) (<= ULTIMATE.start_main_~x~0 2147483647)) [2021-07-06 14:54:50,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-06 14:54:50,321 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 14:54:50,321 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:54:50,321 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (2/2) [2021-07-06 14:54:50,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 02:54:50 BoogieIcfgContainer [2021-07-06 14:54:50,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 14:54:50,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 14:54:50,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 14:54:50,330 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 14:54:50,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 02:54:49" (3/4) ... [2021-07-06 14:54:50,333 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-06 14:54:50,338 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-07-06 14:54:50,338 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-07-06 14:54:50,355 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 14:54:50,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 14:54:50,355 INFO L168 Benchmark]: Toolchain (without parser) took 1290.19 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 37.7 MB in the beginning and 39.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:50,355 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 58.7 MB. Free memory is still 40.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 14:54:50,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.39 ms. Allocated memory is still 58.7 MB. Free memory was 37.5 MB in the beginning and 29.0 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:50,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.35 ms. Allocated memory is still 58.7 MB. Free memory was 29.0 MB in the beginning and 27.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 14:54:50,356 INFO L168 Benchmark]: Boogie Preprocessor took 39.62 ms. Allocated memory is still 58.7 MB. Free memory was 27.7 MB in the beginning and 42.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:50,356 INFO L168 Benchmark]: RCFGBuilder took 196.27 ms. Allocated memory is still 58.7 MB. Free memory was 42.4 MB in the beginning and 33.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:50,356 INFO L168 Benchmark]: TraceAbstraction took 856.21 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 33.3 MB in the beginning and 41.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:50,357 INFO L168 Benchmark]: Witness Printer took 24.47 ms. Allocated memory is still 77.6 MB. Free memory was 41.2 MB in the beginning and 39.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:50,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 58.7 MB. Free memory is still 40.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 148.39 ms. Allocated memory is still 58.7 MB. Free memory was 37.5 MB in the beginning and 29.0 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 16.35 ms. Allocated memory is still 58.7 MB. Free memory was 29.0 MB in the beginning and 27.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.62 ms. Allocated memory is still 58.7 MB. Free memory was 27.7 MB in the beginning and 42.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 196.27 ms. Allocated memory is still 58.7 MB. Free memory was 42.4 MB in the beginning and 33.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 856.21 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 33.3 MB in the beginning and 41.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 24.47 ms. Allocated memory is still 77.6 MB. Free memory was 41.2 MB in the beginning and 39.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 281.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.2ms, AutomataDifference: 81.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 28.2ms, InitialAbstractionConstructionTime: 8.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 0 SDs, 0 SdLazy, 7 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 11.0ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 12.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 2.3ms SsaConstructionTime, 9.1ms SatisfiabilityAnalysisTime, 44.5ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 516.9ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 1.9ms, AutomataDifference: 70.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 14.5ms, InitialAbstractionConstructionTime: 0.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 1 SDslu, 3 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 19.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 6.9ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 7.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 4.9ms SsaConstructionTime, 17.6ms SatisfiabilityAnalysisTime, 126.9ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 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 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 <= x + 1 && x <= 2147483647 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-07-06 14:54:50,387 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...