./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '40ad1731f0bbe9c4cfd483ab6268531cee9db10d89786f9806f2bb2ac139e421'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 40ad1731f0bbe9c4cfd483ab6268531cee9db10d89786f9806f2bb2ac139e421 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 21:54:06,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 21:54:06,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-07 21:54:06,404 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 21:54:06,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 21:54:06,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 21:54:06,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 21:54:06,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 21:54:06,436 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 21:54:06,436 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 21:54:06,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 21:54:06,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 21:54:06,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 21:54:06,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 21:54:06,438 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 21:54:06,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 21:54:06,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 21:54:06,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 21:54:06,439 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 21:54:06,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 21:54:06,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 21:54:06,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 21:54:06,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 21:54:06,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 21:54:06,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 21:54:06,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 21:54:06,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 21:54:06,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 21:54:06,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 21:54:06,441 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 40ad1731f0bbe9c4cfd483ab6268531cee9db10d89786f9806f2bb2ac139e421 [2024-11-07 21:54:06,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 21:54:06,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 21:54:06,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 21:54:06,722 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 21:54:06,722 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 21:54:06,725 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i [2024-11-07 21:54:08,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 21:54:08,416 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 21:54:08,416 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i [2024-11-07 21:54:08,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2fdbef809/04b90b4b87e049adab805bf0845ecd9d/FLAG2d857424d [2024-11-07 21:54:08,620 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2fdbef809/04b90b4b87e049adab805bf0845ecd9d [2024-11-07 21:54:08,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 21:54:08,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 21:54:08,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 21:54:08,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 21:54:08,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 21:54:08,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:54:08" (1/1) ... [2024-11-07 21:54:08,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f849d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:08, skipping insertion in model container [2024-11-07 21:54:08,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:54:08" (1/1) ... [2024-11-07 21:54:08,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 21:54:09,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 21:54:09,207 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 21:54:09,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 21:54:09,486 INFO L204 MainTranslator]: Completed translation [2024-11-07 21:54:09,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09 WrapperNode [2024-11-07 21:54:09,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 21:54:09,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 21:54:09,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 21:54:09,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 21:54:09,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,540 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2024-11-07 21:54:09,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 21:54:09,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 21:54:09,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 21:54:09,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 21:54:09,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,566 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-07 21:54:09,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 21:54:09,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 21:54:09,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 21:54:09,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 21:54:09,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (1/1) ... [2024-11-07 21:54:09,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 21:54:09,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 21:54:09,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 21:54:09,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 21:54:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-07 21:54:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-07 21:54:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 21:54:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 21:54:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 21:54:09,821 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 21:54:09,823 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 21:54:09,913 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-07 21:54:09,914 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 21:54:09,921 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 21:54:09,922 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 21:54:09,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:54:09 BoogieIcfgContainer [2024-11-07 21:54:09,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 21:54:09,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 21:54:09,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 21:54:09,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 21:54:09,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:54:08" (1/3) ... [2024-11-07 21:54:09,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce78cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:54:09, skipping insertion in model container [2024-11-07 21:54:09,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:09" (2/3) ... [2024-11-07 21:54:09,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce78cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:54:09, skipping insertion in model container [2024-11-07 21:54:09,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:54:09" (3/3) ... [2024-11-07 21:54:09,934 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i [2024-11-07 21:54:09,947 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 21:54:09,947 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 21:54:09,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 21:54:10,009 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@70aaaeaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 21:54:10,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 21:54:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:54:10,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 21:54:10,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:54:10,020 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:54:10,021 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 21:54:10,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:54:10,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1415283690, now seen corresponding path program 1 times [2024-11-07 21:54:10,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:54:10,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797472263] [2024-11-07 21:54:10,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:54:10,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:54:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:54:10,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:54:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:54:10,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 21:54:10,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:54:10,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797472263] [2024-11-07 21:54:10,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797472263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:54:10,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 21:54:10,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 21:54:10,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184105665] [2024-11-07 21:54:10,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:54:10,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 21:54:10,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:54:10,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 21:54:10,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 21:54:10,533 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:10,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:54:10,674 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2024-11-07 21:54:10,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 21:54:10,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 21:54:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:54:10,682 INFO L225 Difference]: With dead ends: 43 [2024-11-07 21:54:10,683 INFO L226 Difference]: Without dead ends: 14 [2024-11-07 21:54:10,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-07 21:54:10,688 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 42 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 21:54:10,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 53 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 21:54:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-07 21:54:10,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-07 21:54:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:10,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2024-11-07 21:54:10,723 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 11 [2024-11-07 21:54:10,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:54:10,723 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2024-11-07 21:54:10,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2024-11-07 21:54:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 21:54:10,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:54:10,725 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:54:10,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 21:54:10,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 21:54:10,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:54:10,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-07 21:54:10,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:54:10,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090448217] [2024-11-07 21:54:10,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:54:10,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:54:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:54:10,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:54:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:54:10,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 21:54:10,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:54:10,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090448217] [2024-11-07 21:54:10,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090448217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:54:10,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 21:54:10,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 21:54:10,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670643970] [2024-11-07 21:54:10,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:54:10,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 21:54:10,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:54:10,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 21:54:10,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 21:54:10,842 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:10,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:54:10,858 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2024-11-07 21:54:10,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 21:54:10,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 21:54:10,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:54:10,859 INFO L225 Difference]: With dead ends: 14 [2024-11-07 21:54:10,859 INFO L226 Difference]: Without dead ends: 13 [2024-11-07 21:54:10,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 21:54:10,860 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 21:54:10,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 24 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 21:54:10,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-07 21:54:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-07 21:54:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2024-11-07 21:54:10,864 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2024-11-07 21:54:10,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:54:10,865 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2024-11-07 21:54:10,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2024-11-07 21:54:10,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-07 21:54:10,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:54:10,866 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:54:10,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 21:54:10,867 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 21:54:10,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:54:10,867 INFO L85 PathProgramCache]: Analyzing trace with hash 924061903, now seen corresponding path program 1 times [2024-11-07 21:54:10,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:54:10,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35678365] [2024-11-07 21:54:10,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:54:10,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:54:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 21:54:10,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 21:54:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 21:54:10,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 21:54:10,920 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 21:54:10,921 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-07 21:54:10,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-07 21:54:10,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 21:54:10,926 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-07 21:54:10,951 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 21:54:10,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:54:10 BoogieIcfgContainer [2024-11-07 21:54:10,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 21:54:10,957 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 21:54:10,957 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 21:54:10,958 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 21:54:10,958 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:54:09" (3/4) ... [2024-11-07 21:54:10,961 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 21:54:10,961 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 21:54:10,962 INFO L158 Benchmark]: Toolchain (without parser) took 2339.04ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 55.5MB in the end (delta: 58.7MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2024-11-07 21:54:10,963 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:54:10,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 863.22ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 54.6MB in the end (delta: 59.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-07 21:54:10,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.88ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 52.0MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 21:54:10,965 INFO L158 Benchmark]: Boogie Preprocessor took 38.88ms. Allocated memory is still 142.6MB. Free memory was 52.0MB in the beginning and 50.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:54:10,965 INFO L158 Benchmark]: RCFGBuilder took 341.29ms. Allocated memory is still 142.6MB. Free memory was 50.6MB in the beginning and 108.3MB in the end (delta: -57.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-11-07 21:54:10,967 INFO L158 Benchmark]: TraceAbstraction took 1032.01ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 56.3MB in the end (delta: 51.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-07 21:54:10,968 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 142.6MB. Free memory was 56.3MB in the beginning and 55.5MB in the end (delta: 731.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 21:54:10,969 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 863.22ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 54.6MB in the end (delta: 59.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.88ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 52.0MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.88ms. Allocated memory is still 142.6MB. Free memory was 52.0MB in the beginning and 50.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 341.29ms. Allocated memory is still 142.6MB. Free memory was 50.6MB in the beginning and 108.3MB in the end (delta: -57.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1032.01ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 56.3MB in the end (delta: 51.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 142.6MB. Free memory was 56.3MB in the beginning and 55.5MB in the end (delta: 731.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int staticTrue = 1; [L1549] static int staticFalse = 0; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1571] CALL CWE190_Integer_Overflow__int_fscanf_postinc_05_bad() [L1552] int data; [L1553] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1554] COND TRUE \read(staticTrue) [L1558] COND TRUE \read(staticTrue) [L1561] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 25 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 11, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 21:54:10,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 40ad1731f0bbe9c4cfd483ab6268531cee9db10d89786f9806f2bb2ac139e421 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 21:54:13,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 21:54:13,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-07 21:54:13,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 21:54:13,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 21:54:13,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-07 21:54:13,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 21:54:13,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 21:54:13,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 21:54:13,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 21:54:13,329 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 21:54:13,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 21:54:13,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 21:54:13,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 21:54:13,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 21:54:13,331 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 21:54:13,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 21:54:13,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 21:54:13,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 21:54:13,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 21:54:13,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 21:54:13,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 21:54:13,331 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 21:54:13,331 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 21:54:13,332 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 21:54:13,332 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 21:54:13,332 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 21:54:13,332 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 21:54:13,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 21:54:13,332 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 21:54:13,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 21:54:13,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 21:54:13,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 21:54:13,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 21:54:13,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 21:54:13,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 21:54:13,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 21:54:13,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 21:54:13,334 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 21:54:13,334 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 21:54:13,334 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 21:54:13,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 21:54:13,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 21:54:13,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 21:54:13,334 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 40ad1731f0bbe9c4cfd483ab6268531cee9db10d89786f9806f2bb2ac139e421 [2024-11-07 21:54:13,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 21:54:13,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 21:54:13,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 21:54:13,633 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 21:54:13,633 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 21:54:13,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i [2024-11-07 21:54:14,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 21:54:15,385 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 21:54:15,386 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i [2024-11-07 21:54:15,415 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e86596d5e/7ef723ea64aa453da329a1366a1a066a/FLAGe65c7c522 [2024-11-07 21:54:15,433 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e86596d5e/7ef723ea64aa453da329a1366a1a066a [2024-11-07 21:54:15,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 21:54:15,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 21:54:15,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 21:54:15,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 21:54:15,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 21:54:15,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:54:15" (1/1) ... [2024-11-07 21:54:15,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbd734d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:15, skipping insertion in model container [2024-11-07 21:54:15,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:54:15" (1/1) ... [2024-11-07 21:54:15,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 21:54:16,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 21:54:16,075 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 21:54:16,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 21:54:16,279 INFO L204 MainTranslator]: Completed translation [2024-11-07 21:54:16,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16 WrapperNode [2024-11-07 21:54:16,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 21:54:16,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 21:54:16,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 21:54:16,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 21:54:16,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,333 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2024-11-07 21:54:16,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 21:54:16,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 21:54:16,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 21:54:16,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 21:54:16,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,359 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-07 21:54:16,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 21:54:16,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 21:54:16,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 21:54:16,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 21:54:16,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (1/1) ... [2024-11-07 21:54:16,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 21:54:16,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 21:54:16,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 21:54:16,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 21:54:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-07 21:54:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-07 21:54:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 21:54:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 21:54:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 21:54:16,565 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 21:54:16,566 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 21:54:16,671 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-07 21:54:16,671 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 21:54:16,681 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 21:54:16,681 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 21:54:16,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:54:16 BoogieIcfgContainer [2024-11-07 21:54:16,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 21:54:16,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 21:54:16,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 21:54:16,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 21:54:16,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:54:15" (1/3) ... [2024-11-07 21:54:16,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122841cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:54:16, skipping insertion in model container [2024-11-07 21:54:16,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:54:16" (2/3) ... [2024-11-07 21:54:16,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122841cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:54:16, skipping insertion in model container [2024-11-07 21:54:16,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:54:16" (3/3) ... [2024-11-07 21:54:16,696 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fscanf_postinc_05_bad.i [2024-11-07 21:54:16,709 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 21:54:16,709 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 21:54:16,758 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 21:54:16,775 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65bc8b92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 21:54:16,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 21:54:16,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:54:16,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 21:54:16,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:54:16,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:54:16,787 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 21:54:16,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:54:16,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1415283690, now seen corresponding path program 1 times [2024-11-07 21:54:16,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 21:54:16,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961094768] [2024-11-07 21:54:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:54:16,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 21:54:16,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 21:54:16,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 21:54:16,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-07 21:54:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:54:16,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-07 21:54:16,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 21:54:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 21:54:16,933 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 21:54:16,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 21:54:16,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961094768] [2024-11-07 21:54:16,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961094768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:54:16,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 21:54:16,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 21:54:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237540257] [2024-11-07 21:54:16,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:54:16,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 21:54:16,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 21:54:16,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 21:54:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 21:54:16,961 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:16,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:54:16,973 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2024-11-07 21:54:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 21:54:16,975 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 21:54:16,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:54:16,980 INFO L225 Difference]: With dead ends: 21 [2024-11-07 21:54:16,980 INFO L226 Difference]: Without dead ends: 13 [2024-11-07 21:54:16,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 21:54:16,984 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 21:54:16,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 21:54:17,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-07 21:54:17,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-07 21:54:17,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-11-07 21:54:17,040 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2024-11-07 21:54:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:54:17,041 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-07 21:54:17,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:17,042 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-07 21:54:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-07 21:54:17,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:54:17,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:54:17,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-07 21:54:17,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 21:54:17,247 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 21:54:17,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:54:17,248 INFO L85 PathProgramCache]: Analyzing trace with hash 924121485, now seen corresponding path program 1 times [2024-11-07 21:54:17,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 21:54:17,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958353938] [2024-11-07 21:54:17,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:54:17,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 21:54:17,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 21:54:17,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 21:54:17,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-07 21:54:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:54:17,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 21:54:17,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 21:54:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 21:54:17,386 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 21:54:17,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 21:54:17,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958353938] [2024-11-07 21:54:17,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958353938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:54:17,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 21:54:17,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 21:54:17,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106324779] [2024-11-07 21:54:17,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:54:17,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 21:54:17,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 21:54:17,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 21:54:17,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 21:54:17,389 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:17,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:54:17,398 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-11-07 21:54:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 21:54:17,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-07 21:54:17,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:54:17,399 INFO L225 Difference]: With dead ends: 17 [2024-11-07 21:54:17,399 INFO L226 Difference]: Without dead ends: 13 [2024-11-07 21:54:17,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 21:54:17,400 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 21:54:17,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 21:54:17,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-07 21:54:17,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-07 21:54:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:17,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-07 21:54:17,407 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2024-11-07 21:54:17,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:54:17,407 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-07 21:54:17,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 21:54:17,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-07 21:54:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-07 21:54:17,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:54:17,408 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:54:17,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-07 21:54:17,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 21:54:17,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 21:54:17,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:54:17,609 INFO L85 PathProgramCache]: Analyzing trace with hash 924061903, now seen corresponding path program 1 times [2024-11-07 21:54:17,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 21:54:17,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833368735] [2024-11-07 21:54:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:54:17,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 21:54:17,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 21:54:17,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 21:54:17,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-07 21:54:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 21:54:17,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 21:54:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 21:54:17,731 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-07 21:54:17,731 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 21:54:17,733 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-07 21:54:17,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-07 21:54:17,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-07 21:54:17,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 21:54:17,939 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-07 21:54:17,964 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 21:54:17,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:54:17 BoogieIcfgContainer [2024-11-07 21:54:17,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 21:54:17,968 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 21:54:17,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 21:54:17,968 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 21:54:17,972 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:54:16" (3/4) ... [2024-11-07 21:54:17,973 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 21:54:17,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 21:54:17,975 INFO L158 Benchmark]: Toolchain (without parser) took 2536.48ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 90.1MB in the beginning and 194.5MB in the end (delta: -104.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-07 21:54:17,975 INFO L158 Benchmark]: CDTParser took 2.33ms. Allocated memory is still 117.4MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:54:17,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.92ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 69.4MB in the end (delta: 20.5MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-11-07 21:54:17,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.19ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 66.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:54:17,975 INFO L158 Benchmark]: Boogie Preprocessor took 39.45ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 64.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:54:17,976 INFO L158 Benchmark]: RCFGBuilder took 307.53ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 52.6MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 21:54:17,976 INFO L158 Benchmark]: TraceAbstraction took 1281.52ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 52.1MB in the beginning and 194.5MB in the end (delta: -142.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:54:17,976 INFO L158 Benchmark]: Witness Printer took 6.00ms. Allocated memory is still 243.3MB. Free memory was 194.5MB in the beginning and 194.5MB in the end (delta: 35.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:54:17,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.33ms. Allocated memory is still 117.4MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 840.92ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 69.4MB in the end (delta: 20.5MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.19ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 66.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.45ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 64.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 307.53ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 52.6MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1281.52ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 52.1MB in the beginning and 194.5MB in the end (delta: -142.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.00ms. Allocated memory is still 243.3MB. Free memory was 194.5MB in the beginning and 194.5MB in the end (delta: 35.5kB). There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int staticTrue = 1; [L1549] static int staticFalse = 0; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1571] CALL CWE190_Integer_Overflow__int_fscanf_postinc_05_bad() [L1552] int data; [L1553] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1554] COND TRUE \read(staticTrue) [L1558] COND TRUE \read(staticTrue) [L1561] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 3 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 21:54:18,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample