./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6c672e39437b64d6e9cb9cb97996c418b00fa547966c3f2e660d54aae5ea7064 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 16:52:14,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 16:52:14,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 16:52:14,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 16:52:14,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 16:52:14,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 16:52:14,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 16:52:14,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 16:52:14,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 16:52:14,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 16:52:14,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 16:52:14,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 16:52:14,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 16:52:14,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 16:52:14,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 16:52:14,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 16:52:14,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 16:52:14,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 16:52:14,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 16:52:14,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 16:52:14,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 16:52:14,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 16:52:14,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 16:52:14,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 16:52:14,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 16:52:14,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 16:52:14,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 16:52:14,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 16:52:14,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 16:52:14,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 16:52:14,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 16:52:14,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 16:52:14,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 16:52:14,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 16:52:14,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 16:52:14,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 16:52:14,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 16:52:14,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 16:52:14,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 16:52:14,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 16:52:14,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 16:52:14,179 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-15 16:52:14,207 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 16:52:14,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 16:52:14,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 16:52:14,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 16:52:14,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 16:52:14,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 16:52:14,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 16:52:14,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 16:52:14,210 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 16:52:14,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 16:52:14,212 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 16:52:14,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 16:52:14,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 16:52:14,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 16:52:14,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 16:52:14,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 16:52:14,213 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-15 16:52:14,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 16:52:14,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 16:52:14,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 16:52:14,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 16:52:14,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 16:52:14,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 16:52:14,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 16:52:14,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 16:52:14,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 16:52:14,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 16:52:14,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 16:52:14,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 16:52:14,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 16:52:14,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 16:52:14,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c672e39437b64d6e9cb9cb97996c418b00fa547966c3f2e660d54aae5ea7064 [2021-12-15 16:52:14,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 16:52:14,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 16:52:14,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 16:52:14,475 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 16:52:14,475 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 16:52:14,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2021-12-15 16:52:14,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9d7f738/ea7652f89a58439794b1157ec73c46a6/FLAGe46600f7a [2021-12-15 16:52:14,982 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 16:52:14,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2021-12-15 16:52:15,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9d7f738/ea7652f89a58439794b1157ec73c46a6/FLAGe46600f7a [2021-12-15 16:52:15,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9d7f738/ea7652f89a58439794b1157ec73c46a6 [2021-12-15 16:52:15,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 16:52:15,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 16:52:15,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 16:52:15,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 16:52:15,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 16:52:15,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb9d23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15, skipping insertion in model container [2021-12-15 16:52:15,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 16:52:15,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 16:52:15,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:52:15,838 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 16:52:15,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:52:15,870 INFO L208 MainTranslator]: Completed translation [2021-12-15 16:52:15,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15 WrapperNode [2021-12-15 16:52:15,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 16:52:15,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 16:52:15,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 16:52:15,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 16:52:15,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,916 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2021-12-15 16:52:15,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 16:52:15,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 16:52:15,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 16:52:15,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 16:52:15,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 16:52:15,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 16:52:15,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 16:52:15,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 16:52:15,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (1/1) ... [2021-12-15 16:52:15,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 16:52:15,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:52:16,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 16:52:16,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 16:52:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 16:52:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 16:52:16,105 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 16:52:16,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 16:52:16,218 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 16:52:16,223 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 16:52:16,223 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 16:52:16,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:52:16 BoogieIcfgContainer [2021-12-15 16:52:16,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 16:52:16,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 16:52:16,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 16:52:16,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 16:52:16,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 04:52:15" (1/3) ... [2021-12-15 16:52:16,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec8a551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 04:52:16, skipping insertion in model container [2021-12-15 16:52:16,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:15" (2/3) ... [2021-12-15 16:52:16,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec8a551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 04:52:16, skipping insertion in model container [2021-12-15 16:52:16,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:52:16" (3/3) ... [2021-12-15 16:52:16,233 INFO L111 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7.c [2021-12-15 16:52:16,237 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 16:52:16,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-15 16:52:16,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 16:52:16,284 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 16:52:16,285 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-15 16:52:16,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:16,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-15 16:52:16,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:16,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-15 16:52:16,302 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:16,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:16,308 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2021-12-15 16:52:16,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:16,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108597253] [2021-12-15 16:52:16,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:16,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:52:16,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:52:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:52:16,408 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:52:16,409 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 16:52:16,410 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-12-15 16:52:16,412 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-12-15 16:52:16,412 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-12-15 16:52:16,413 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-12-15 16:52:16,413 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-12-15 16:52:16,413 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-12-15 16:52:16,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 16:52:16,417 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-15 16:52:16,420 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 16:52:16,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 04:52:16 BoogieIcfgContainer [2021-12-15 16:52:16,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 16:52:16,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 16:52:16,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 16:52:16,438 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 16:52:16,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:52:16" (3/4) ... [2021-12-15 16:52:16,440 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-15 16:52:16,481 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 16:52:16,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 16:52:16,482 INFO L158 Benchmark]: Toolchain (without parser) took 943.47ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 98.6MB in the beginning and 118.1MB in the end (delta: -19.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-15 16:52:16,483 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:52:16,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.28ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 98.2MB in the beginning and 144.5MB in the end (delta: -46.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 16:52:16,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.86ms. Allocated memory is still 167.8MB. Free memory was 144.5MB in the beginning and 143.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:52:16,485 INFO L158 Benchmark]: Boogie Preprocessor took 32.80ms. Allocated memory is still 167.8MB. Free memory was 143.3MB in the beginning and 142.3MB in the end (delta: 955.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 16:52:16,485 INFO L158 Benchmark]: RCFGBuilder took 274.21ms. Allocated memory is still 167.8MB. Free memory was 142.3MB in the beginning and 132.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 16:52:16,486 INFO L158 Benchmark]: TraceAbstraction took 210.26ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 120.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 16:52:16,486 INFO L158 Benchmark]: Witness Printer took 43.04ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 118.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 16:52:16,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.28ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 98.2MB in the beginning and 144.5MB in the end (delta: -46.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.86ms. Allocated memory is still 167.8MB. Free memory was 144.5MB in the beginning and 143.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.80ms. Allocated memory is still 167.8MB. Free memory was 143.3MB in the beginning and 142.3MB in the end (delta: 955.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 274.21ms. Allocated memory is still 167.8MB. Free memory was 142.3MB in the beginning and 132.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 210.26ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 120.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 43.04ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 118.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a, b, c, i, j, M, N; [L16] i = __VERIFIER_nondet_int() [L17] j = __VERIFIER_nondet_int() [L18] M = __VERIFIER_nondet_int() [L19] N = __VERIFIER_nondet_int() [L20] a = i [L21] b = j [L22] c = 0 VAL [a=2147483647, b=0, c=0, i=2147483647, j=0, M=0, N=1] [L23] COND TRUE i