./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 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/AliasDarteFeautrierGonnord-SAS2010-easy1.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 5d893efacd65ca909eb9b8ab6c750c1daa6fbbdd40268b7a15c770813d19a300 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 14:33:13,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 14:33:13,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 14:33:13,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 14:33:13,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 14:33:13,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 14:33:13,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 14:33:13,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 14:33:13,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 14:33:13,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 14:33:13,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 14:33:13,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 14:33:13,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 14:33:13,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 14:33:13,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 14:33:13,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 14:33:13,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 14:33:13,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 14:33:13,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 14:33:13,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 14:33:13,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 14:33:13,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 14:33:13,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 14:33:13,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 14:33:13,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 14:33:13,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 14:33:13,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 14:33:13,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 14:33:13,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 14:33:13,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 14:33:13,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 14:33:13,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 14:33:13,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 14:33:13,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 14:33:13,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 14:33:13,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 14:33:13,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 14:33:13,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 14:33:13,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 14:33:13,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 14:33:13,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 14:33:13,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-19 14:33:13,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 14:33:13,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 14:33:13,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 14:33:13,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 14:33:13,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 14:33:13,959 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 14:33:13,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 14:33:13,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 14:33:13,960 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 14:33:13,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 14:33:13,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 14:33:13,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 14:33:13,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 14:33:13,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 14:33:13,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 14:33:13,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 14:33:13,961 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 14:33:13,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 14:33:13,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 14:33:13,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 14:33:13,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 14:33:13,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 14:33:13,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 14:33:13,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 14:33:13,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 14:33:13,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 14:33:13,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 14:33:13,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 14:33:13,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 14:33:13,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 14:33:13,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 14:33:13,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d893efacd65ca909eb9b8ab6c750c1daa6fbbdd40268b7a15c770813d19a300 [2021-12-19 14:33:14,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 14:33:14,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 14:33:14,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 14:33:14,169 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 14:33:14,172 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 14:33:14,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2021-12-19 14:33:14,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a90bb57a5/419d9e53f8d546b89214e3b0ada7cbcc/FLAGa6f368f4f [2021-12-19 14:33:14,558 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 14:33:14,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2021-12-19 14:33:14,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a90bb57a5/419d9e53f8d546b89214e3b0ada7cbcc/FLAGa6f368f4f [2021-12-19 14:33:14,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a90bb57a5/419d9e53f8d546b89214e3b0ada7cbcc [2021-12-19 14:33:14,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 14:33:14,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 14:33:14,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 14:33:14,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 14:33:14,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 14:33:14,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4f2650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14, skipping insertion in model container [2021-12-19 14:33:14,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 14:33:14,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 14:33:14,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 14:33:14,720 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 14:33:14,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 14:33:14,738 INFO L208 MainTranslator]: Completed translation [2021-12-19 14:33:14,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14 WrapperNode [2021-12-19 14:33:14,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 14:33:14,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 14:33:14,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 14:33:14,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 14:33:14,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,759 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2021-12-19 14:33:14,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 14:33:14,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 14:33:14,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 14:33:14,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 14:33:14,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 14:33:14,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 14:33:14,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 14:33:14,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 14:33:14,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (1/1) ... [2021-12-19 14:33:14,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 14:33:14,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 14:33:14,803 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) [2021-12-19 14:33:14,825 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 [2021-12-19 14:33:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 14:33:14,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 14:33:14,880 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 14:33:14,881 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 14:33:14,953 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 14:33:14,958 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 14:33:14,958 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 14:33:14,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 02:33:14 BoogieIcfgContainer [2021-12-19 14:33:14,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 14:33:14,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 14:33:14,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 14:33:14,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 14:33:14,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 02:33:14" (1/3) ... [2021-12-19 14:33:14,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae52300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 02:33:14, skipping insertion in model container [2021-12-19 14:33:14,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 02:33:14" (2/3) ... [2021-12-19 14:33:14,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae52300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 02:33:14, skipping insertion in model container [2021-12-19 14:33:14,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 02:33:14" (3/3) ... [2021-12-19 14:33:14,965 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy1.c [2021-12-19 14:33:14,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 14:33:14,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-19 14:33:15,002 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 14:33:15,007 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 [2021-12-19 14:33:15,007 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-19 14:33:15,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 15 states have internal predecessors, (18), 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) [2021-12-19 14:33:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-19 14:33:15,020 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 14:33:15,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-19 14:33:15,021 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 14:33:15,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 14:33:15,025 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2021-12-19 14:33:15,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 14:33:15,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236580810] [2021-12-19 14:33:15,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 14:33:15,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 14:33:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 14:33:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 14:33:15,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 14:33:15,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236580810] [2021-12-19 14:33:15,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236580810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 14:33:15,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 14:33:15,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 14:33:15,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031077096] [2021-12-19 14:33:15,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 14:33:15,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 14:33:15,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 14:33:15,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 14:33:15,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 14:33:15,168 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 14:33:15,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 14:33:15,228 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-12-19 14:33:15,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 14:33:15,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-19 14:33:15,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 14:33:15,249 INFO L225 Difference]: With dead ends: 28 [2021-12-19 14:33:15,249 INFO L226 Difference]: Without dead ends: 18 [2021-12-19 14:33:15,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 14:33:15,253 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 14:33:15,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 16 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 14:33:15,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-19 14:33:15,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-12-19 14:33:15,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 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) [2021-12-19 14:33:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-12-19 14:33:15,301 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 5 [2021-12-19 14:33:15,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 14:33:15,301 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-12-19 14:33:15,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 14:33:15,302 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-12-19 14:33:15,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-19 14:33:15,302 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 14:33:15,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-19 14:33:15,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 14:33:15,303 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 14:33:15,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 14:33:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2021-12-19 14:33:15,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 14:33:15,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922484162] [2021-12-19 14:33:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 14:33:15,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 14:33:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 14:33:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 14:33:15,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 14:33:15,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922484162] [2021-12-19 14:33:15,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922484162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 14:33:15,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 14:33:15,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 14:33:15,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405254477] [2021-12-19 14:33:15,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 14:33:15,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 14:33:15,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 14:33:15,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 14:33:15,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 14:33:15,343 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-19 14:33:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 14:33:15,360 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-12-19 14:33:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 14:33:15,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-19 14:33:15,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 14:33:15,364 INFO L225 Difference]: With dead ends: 16 [2021-12-19 14:33:15,364 INFO L226 Difference]: Without dead ends: 14 [2021-12-19 14:33:15,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 14:33:15,366 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 14:33:15,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 14:33:15,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-19 14:33:15,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-19 14:33:15,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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) [2021-12-19 14:33:15,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-12-19 14:33:15,371 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2021-12-19 14:33:15,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 14:33:15,371 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-12-19 14:33:15,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-19 14:33:15,372 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-12-19 14:33:15,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-19 14:33:15,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 14:33:15,373 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-12-19 14:33:15,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-19 14:33:15,374 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 14:33:15,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 14:33:15,375 INFO L85 PathProgramCache]: Analyzing trace with hash 760372446, now seen corresponding path program 1 times [2021-12-19 14:33:15,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 14:33:15,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896050608] [2021-12-19 14:33:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 14:33:15,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 14:33:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 14:33:15,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 14:33:15,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 14:33:15,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896050608] [2021-12-19 14:33:15,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896050608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 14:33:15,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 14:33:15,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 14:33:15,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864017272] [2021-12-19 14:33:15,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 14:33:15,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 14:33:15,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 14:33:15,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 14:33:15,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 14:33:15,414 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 14:33:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 14:33:15,433 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-12-19 14:33:15,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 14:33:15,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-19 14:33:15,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 14:33:15,435 INFO L225 Difference]: With dead ends: 14 [2021-12-19 14:33:15,435 INFO L226 Difference]: Without dead ends: 0 [2021-12-19 14:33:15,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 14:33:15,439 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 14:33:15,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 14:33:15,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-19 14:33:15,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-19 14:33:15,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 14:33:15,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-19 14:33:15,443 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-12-19 14:33:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 14:33:15,443 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 14:33:15,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 14:33:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-19 14:33:15,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-19 14:33:15,446 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-12-19 14:33:15,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-12-19 14:33:15,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-12-19 14:33:15,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-12-19 14:33:15,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 14:33:15,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-19 14:33:15,462 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-12-19 14:33:15,462 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-19 14:33:15,462 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-12-19 14:33:15,462 INFO L858 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2021-12-19 14:33:15,462 INFO L858 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-12-19 14:33:15,462 INFO L858 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-12-19 14:33:15,463 INFO L858 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-12-19 14:33:15,463 INFO L858 garLoopResultBuilder]: For program point L13-2(lines 13 19) no Hoare annotation was computed. [2021-12-19 14:33:15,463 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-19 14:33:15,463 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-12-19 14:33:15,463 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-12-19 14:33:15,463 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-19 14:33:15,464 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-19 14:33:15,464 INFO L861 garLoopResultBuilder]: At program point L20(lines 11 21) the Hoare annotation is: true [2021-12-19 14:33:15,464 INFO L858 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-12-19 14:33:15,464 INFO L854 garLoopResultBuilder]: At program point L14-2(lines 13 19) the Hoare annotation is: (<= 0 |ULTIMATE.start_main_~x~0#1|) [2021-12-19 14:33:15,467 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-19 14:33:15,468 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-19 14:33:15,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 02:33:15 BoogieIcfgContainer [2021-12-19 14:33:15,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-19 14:33:15,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 14:33:15,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 14:33:15,488 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 14:33:15,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 02:33:14" (3/4) ... [2021-12-19 14:33:15,492 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-19 14:33:15,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-19 14:33:15,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-19 14:33:15,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-19 14:33:15,530 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 14:33:15,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 14:33:15,531 INFO L158 Benchmark]: Toolchain (without parser) took 957.58ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 78.3MB in the end (delta: -12.3MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2021-12-19 14:33:15,531 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 70.5MB in the beginning and 70.5MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 14:33:15,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.33ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 78.8MB in the end (delta: -13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-19 14:33:15,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.29ms. Allocated memory is still 100.7MB. Free memory was 78.8MB in the beginning and 77.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 14:33:15,532 INFO L158 Benchmark]: Boogie Preprocessor took 15.89ms. Allocated memory is still 100.7MB. Free memory was 77.5MB in the beginning and 76.7MB in the end (delta: 823.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 14:33:15,532 INFO L158 Benchmark]: RCFGBuilder took 182.03ms. Allocated memory is still 100.7MB. Free memory was 76.7MB in the beginning and 68.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 14:33:15,533 INFO L158 Benchmark]: TraceAbstraction took 525.26ms. Allocated memory is still 100.7MB. Free memory was 67.8MB in the beginning and 38.9MB in the end (delta: 29.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-19 14:33:15,533 INFO L158 Benchmark]: Witness Printer took 43.05ms. Allocated memory is still 100.7MB. Free memory was 38.5MB in the beginning and 78.3MB in the end (delta: -39.8MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-12-19 14:33:15,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 70.5MB in the beginning and 70.5MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.33ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 78.8MB in the end (delta: -13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.29ms. Allocated memory is still 100.7MB. Free memory was 78.8MB in the beginning and 77.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.89ms. Allocated memory is still 100.7MB. Free memory was 77.5MB in the beginning and 76.7MB in the end (delta: 823.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 182.03ms. Allocated memory is still 100.7MB. Free memory was 76.7MB in the beginning and 68.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 525.26ms. Allocated memory is still 100.7MB. Free memory was 67.8MB in the beginning and 38.9MB in the end (delta: 29.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 43.05ms. Allocated memory is still 100.7MB. Free memory was 38.5MB in the beginning and 78.3MB in the end (delta: -39.8MB). Peak memory consumption was 6.1MB. 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 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 18 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= x RESULT: Ultimate proved your program to be correct! [2021-12-19 14:33:15,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE