./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/signedintegeroverflow-regression/IntegerPromotion-1.i -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 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:21:45,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:21:45,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:21:45,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:21:45,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:21:45,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:21:45,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:21:45,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:21:45,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:21:45,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:21:45,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:21:45,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:21:45,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:21:45,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:21:45,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:21:45,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:21:45,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:21:45,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:21:45,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:21:45,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:21:45,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:21:45,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:21:45,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:21:45,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:21:45,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:21:45,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:21:45,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:21:45,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:21:45,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:21:45,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:21:45,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:21:45,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:21:45,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:21:45,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:21:45,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:21:45,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:21:45,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:21:45,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:21:45,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:21:45,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:21:45,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:21:45,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:21:45,999 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:21:45,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:21:46,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:21:46,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:21:46,001 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:21:46,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:21:46,002 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:21:46,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:21:46,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:21:46,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:21:46,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:21:46,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:21:46,003 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:21:46,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:21:46,004 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:21:46,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:21:46,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:21:46,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:21:46,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:21:46,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:21:46,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:21:46,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:21:46,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:21:46,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:21:46,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:21:46,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:21:46,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:21:46,007 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:21:46,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 [2020-10-20 06:21:46,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:21:46,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:21:46,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:21:46,250 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:21:46,250 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:21:46,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i [2020-10-20 06:21:46,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcde27aaf/9363ea65f4d9476389dbbf24997bfeb6/FLAGc937f61e9 [2020-10-20 06:21:46,852 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:21:46,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i [2020-10-20 06:21:46,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcde27aaf/9363ea65f4d9476389dbbf24997bfeb6/FLAGc937f61e9 [2020-10-20 06:21:47,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcde27aaf/9363ea65f4d9476389dbbf24997bfeb6 [2020-10-20 06:21:47,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:21:47,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:21:47,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:21:47,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:21:47,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:21:47,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78293817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47, skipping insertion in model container [2020-10-20 06:21:47,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:21:47,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:21:47,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:21:47,583 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:21:47,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:21:47,710 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:21:47,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47 WrapperNode [2020-10-20 06:21:47,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:21:47,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:21:47,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:21:47,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:21:47,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:21:47,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:21:47,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:21:47,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:21:47,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... [2020-10-20 06:21:47,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:21:47,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:21:47,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:21:47,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:21:47,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:21:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:21:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:21:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:21:48,044 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:21:48,045 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-20 06:21:48,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:21:48 BoogieIcfgContainer [2020-10-20 06:21:48,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:21:48,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:21:48,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:21:48,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:21:48,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:21:47" (1/3) ... [2020-10-20 06:21:48,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562a874e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:21:48, skipping insertion in model container [2020-10-20 06:21:48,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:47" (2/3) ... [2020-10-20 06:21:48,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562a874e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:21:48, skipping insertion in model container [2020-10-20 06:21:48,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:21:48" (3/3) ... [2020-10-20 06:21:48,057 INFO L111 eAbstractionObserver]: Analyzing ICFG IntegerPromotion-1.i [2020-10-20 06:21:48,070 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:21:48,077 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-20 06:21:48,094 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 06:21:48,132 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:21:48,133 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:21:48,133 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:21:48,133 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:21:48,133 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:21:48,134 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:21:48,135 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:21:48,135 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:21:48,160 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-10-20 06:21:48,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-20 06:21:48,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:21:48,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-20 06:21:48,170 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:21:48,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:21:48,179 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2020-10-20 06:21:48,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:21:48,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643764213] [2020-10-20 06:21:48,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:21:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:21:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:21:48,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643764213] [2020-10-20 06:21:48,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:21:48,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:21:48,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893839297] [2020-10-20 06:21:48,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:21:48,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:21:48,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:21:48,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:21:48,390 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2020-10-20 06:21:48,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:21:48,430 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-10-20 06:21:48,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:21:48,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-20 06:21:48,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:21:48,443 INFO L225 Difference]: With dead ends: 13 [2020-10-20 06:21:48,444 INFO L226 Difference]: Without dead ends: 8 [2020-10-20 06:21:48,448 INFO L677 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 [2020-10-20 06:21:48,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-20 06:21:48,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-20 06:21:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-20 06:21:48,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-10-20 06:21:48,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 3 [2020-10-20 06:21:48,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:21:48,485 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-10-20 06:21:48,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:21:48,485 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-10-20 06:21:48,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:21:48,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:21:48,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:21:48,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:21:48,494 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:21:48,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:21:48,495 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2020-10-20 06:21:48,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:21:48,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615330272] [2020-10-20 06:21:48,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:21:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:21:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:21:48,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615330272] [2020-10-20 06:21:48,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:21:48,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:21:48,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162470711] [2020-10-20 06:21:48,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:21:48,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:21:48,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:21:48,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:21:48,526 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 3 states. [2020-10-20 06:21:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:21:48,544 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-10-20 06:21:48,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:21:48,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-20 06:21:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:21:48,546 INFO L225 Difference]: With dead ends: 8 [2020-10-20 06:21:48,546 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 06:21:48,547 INFO L677 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 [2020-10-20 06:21:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 06:21:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 06:21:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 06:21:48,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 06:21:48,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-20 06:21:48,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:21:48,548 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:21:48,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:21:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:21:48,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:21:48,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:21:48,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 06:21:48,566 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2020-10-20 06:21:48,566 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 06:21:48,566 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 06:21:48,566 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2020-10-20 06:21:48,567 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2020-10-20 06:21:48,567 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2020-10-20 06:21:48,567 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 06:21:48,567 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 06:21:48,567 INFO L270 CegarLoopResult]: At program point L335(lines 331 336) the Hoare annotation is: (<= ULTIMATE.start_main_~a~0 32767) [2020-10-20 06:21:48,568 INFO L274 CegarLoopResult]: For program point L333(line 333) no Hoare annotation was computed. [2020-10-20 06:21:48,568 INFO L274 CegarLoopResult]: For program point L333-1(line 333) no Hoare annotation was computed. [2020-10-20 06:21:48,568 INFO L274 CegarLoopResult]: For program point L333-2(line 333) no Hoare annotation was computed. [2020-10-20 06:21:48,568 INFO L274 CegarLoopResult]: For program point L333-3(line 333) no Hoare annotation was computed. [2020-10-20 06:21:48,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:21:48 BoogieIcfgContainer [2020-10-20 06:21:48,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:21:48,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:21:48,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:21:48,590 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:21:48,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:21:48" (3/4) ... [2020-10-20 06:21:48,596 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:21:48,616 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 06:21:48,616 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-20 06:21:48,617 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 06:21:48,678 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:21:48,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:21:48,681 INFO L168 Benchmark]: Toolchain (without parser) took 1514.58 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 10.8 MB in the beginning and 15.7 MB in the end (delta: -4.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:48,682 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 18.6 MB in the beginning and 18.6 MB in the end (delta: 41.5 kB). Peak memory consumption was 41.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:21:48,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.18 ms. Allocated memory was 34.6 MB in the beginning and 42.5 MB in the end (delta: 7.9 MB). Free memory was 9.9 MB in the beginning and 17.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:48,684 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.96 ms. Allocated memory is still 42.5 MB. Free memory was 17.2 MB in the beginning and 15.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:48,685 INFO L168 Benchmark]: Boogie Preprocessor took 27.62 ms. Allocated memory is still 42.5 MB. Free memory was 15.5 MB in the beginning and 26.9 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:48,686 INFO L168 Benchmark]: RCFGBuilder took 261.73 ms. Allocated memory is still 42.5 MB. Free memory was 26.9 MB in the beginning and 15.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:48,687 INFO L168 Benchmark]: TraceAbstraction took 540.86 ms. Allocated memory was 42.5 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Free memory was 14.8 MB in the beginning and 18.4 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:21:48,688 INFO L168 Benchmark]: Witness Printer took 89.10 ms. Allocated memory is still 44.6 MB. Free memory was 18.4 MB in the beginning and 15.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:48,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 18.6 MB in the beginning and 18.6 MB in the end (delta: 41.5 kB). Peak memory consumption was 41.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 539.18 ms. Allocated memory was 34.6 MB in the beginning and 42.5 MB in the end (delta: 7.9 MB). Free memory was 9.9 MB in the beginning and 17.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 44.96 ms. Allocated memory is still 42.5 MB. Free memory was 17.2 MB in the beginning and 15.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.62 ms. Allocated memory is still 42.5 MB. Free memory was 15.5 MB in the beginning and 26.9 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 261.73 ms. Allocated memory is still 42.5 MB. Free memory was 26.9 MB in the beginning and 15.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 540.86 ms. Allocated memory was 42.5 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Free memory was 14.8 MB in the beginning and 18.4 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 89.10 ms. Allocated memory is still 44.6 MB. Free memory was 18.4 MB in the beginning and 15.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: a <= 32767 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 10 SDslu, 2 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 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 proved your program to be correct! Received shutdown request...