./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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/LeeJonesBen-Amram-POPL2001-Ex4.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 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:36:07,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:36:07,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:36:07,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:36:07,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:36:07,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:36:07,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:36:07,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:36:07,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:36:07,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:36:07,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:36:07,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:36:07,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:36:07,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:36:07,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:36:07,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:36:07,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:36:07,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:36:07,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:36:07,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:36:07,508 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:36:07,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:36:07,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:36:07,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:36:07,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:36:07,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:36:07,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:36:07,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:36:07,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:36:07,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:36:07,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:36:07,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:36:07,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:36:07,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:36:07,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:36:07,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:36:07,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:36:07,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:36:07,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:36:07,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:36:07,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:36:07,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:36:07,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-22 00:36:07,565 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:36:07,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:36:07,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:36:07,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:36:07,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:36:07,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:36:07,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:36:07,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:36:07,567 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:36:07,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:36:07,568 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:36:07,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:36:07,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:36:07,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:36:07,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:36:07,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:36:07,569 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:36:07,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:36:07,570 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:36:07,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:36:07,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:36:07,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:36:07,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:36:07,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:36:07,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:36:07,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:36:07,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:36:07,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:36:07,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:36:07,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:36:07,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 [2022-07-22 00:36:07,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:36:07,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:36:07,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:36:07,839 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:36:07,839 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:36:07,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-07-22 00:36:07,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241688f1b/5b7eaccc5d434a7b90787f2f7915292f/FLAG0f08be149 [2022-07-22 00:36:08,258 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:36:08,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-07-22 00:36:08,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241688f1b/5b7eaccc5d434a7b90787f2f7915292f/FLAG0f08be149 [2022-07-22 00:36:08,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241688f1b/5b7eaccc5d434a7b90787f2f7915292f [2022-07-22 00:36:08,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:36:08,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:36:08,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:36:08,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:36:08,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:36:08,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38cf028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08, skipping insertion in model container [2022-07-22 00:36:08,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:36:08,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:36:08,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:36:08,410 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:36:08,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:36:08,427 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:36:08,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08 WrapperNode [2022-07-22 00:36:08,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:36:08,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:36:08,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:36:08,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:36:08,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,480 INFO L137 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-07-22 00:36:08,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:36:08,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:36:08,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:36:08,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:36:08,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:36:08,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:36:08,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:36:08,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:36:08,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (1/1) ... [2022-07-22 00:36:08,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:36:08,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:36:08,553 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) [2022-07-22 00:36:08,571 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 [2022-07-22 00:36:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure p [2022-07-22 00:36:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2022-07-22 00:36:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:36:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:36:08,617 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:36:08,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:36:08,695 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:36:08,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:36:08,700 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 00:36:08,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:36:08 BoogieIcfgContainer [2022-07-22 00:36:08,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:36:08,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:36:08,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:36:08,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:36:08,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:36:08" (1/3) ... [2022-07-22 00:36:08,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5981bcaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:36:08, skipping insertion in model container [2022-07-22 00:36:08,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:36:08" (2/3) ... [2022-07-22 00:36:08,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5981bcaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:36:08, skipping insertion in model container [2022-07-22 00:36:08,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:36:08" (3/3) ... [2022-07-22 00:36:08,727 INFO L111 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex4.c [2022-07-22 00:36:08,736 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:36:08,740 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-22 00:36:08,799 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:36:08,805 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@45546ddf, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@466ea333 [2022-07-22 00:36:08,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-22 00:36:08,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-22 00:36:08,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 00:36:08,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:36:08,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:36:08,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:36:08,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:36:08,823 INFO L85 PathProgramCache]: Analyzing trace with hash 506311056, now seen corresponding path program 1 times [2022-07-22 00:36:08,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:36:08,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058857246] [2022-07-22 00:36:08,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:36:08,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:36:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:36:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:08,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:36:08,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058857246] [2022-07-22 00:36:08,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058857246] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:36:08,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:36:08,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:36:08,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914247550] [2022-07-22 00:36:08,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:36:08,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:36:08,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:36:09,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:36:09,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:36:09,011 INFO L87 Difference]: Start difference. First operand has 26 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:36:09,109 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2022-07-22 00:36:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:36:09,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-22 00:36:09,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:36:09,118 INFO L225 Difference]: With dead ends: 45 [2022-07-22 00:36:09,120 INFO L226 Difference]: Without dead ends: 29 [2022-07-22 00:36:09,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:36:09,127 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 40 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:36:09,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 61 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:36:09,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-22 00:36:09,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2022-07-22 00:36:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-07-22 00:36:09,154 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 7 [2022-07-22 00:36:09,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:36:09,155 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-07-22 00:36:09,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,155 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-07-22 00:36:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 00:36:09,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:36:09,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:36:09,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:36:09,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:36:09,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:36:09,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1484226411, now seen corresponding path program 1 times [2022-07-22 00:36:09,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:36:09,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218252056] [2022-07-22 00:36:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:36:09,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:36:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:36:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:09,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:36:09,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218252056] [2022-07-22 00:36:09,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218252056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:36:09,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:36:09,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:36:09,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556999979] [2022-07-22 00:36:09,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:36:09,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:36:09,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:36:09,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:36:09,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:36:09,210 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:36:09,225 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-07-22 00:36:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:36:09,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 00:36:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:36:09,226 INFO L225 Difference]: With dead ends: 20 [2022-07-22 00:36:09,226 INFO L226 Difference]: Without dead ends: 19 [2022-07-22 00:36:09,226 INFO L412 NwaCegarLoop]: 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 [2022-07-22 00:36:09,227 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:36:09,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:36:09,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-22 00:36:09,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-22 00:36:09,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-07-22 00:36:09,241 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2022-07-22 00:36:09,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:36:09,241 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-07-22 00:36:09,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,241 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-07-22 00:36:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 00:36:09,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:36:09,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:36:09,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:36:09,243 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:36:09,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:36:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1484219428, now seen corresponding path program 1 times [2022-07-22 00:36:09,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:36:09,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098545872] [2022-07-22 00:36:09,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:36:09,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:36:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:36:09,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:09,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:36:09,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098545872] [2022-07-22 00:36:09,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098545872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:36:09,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:36:09,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:36:09,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704757435] [2022-07-22 00:36:09,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:36:09,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:36:09,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:36:09,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:36:09,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:36:09,296 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:36:09,333 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-07-22 00:36:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:36:09,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 00:36:09,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:36:09,335 INFO L225 Difference]: With dead ends: 31 [2022-07-22 00:36:09,335 INFO L226 Difference]: Without dead ends: 30 [2022-07-22 00:36:09,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:36:09,337 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:36:09,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 39 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:36:09,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-22 00:36:09,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2022-07-22 00:36:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-07-22 00:36:09,343 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 8 [2022-07-22 00:36:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:36:09,344 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-07-22 00:36:09,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-07-22 00:36:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-22 00:36:09,344 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:36:09,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:36:09,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 00:36:09,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:36:09,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:36:09,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1233838035, now seen corresponding path program 1 times [2022-07-22 00:36:09,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:36:09,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325895308] [2022-07-22 00:36:09,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:36:09,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:36:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:36:09,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:09,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:36:09,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325895308] [2022-07-22 00:36:09,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325895308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:36:09,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:36:09,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:36:09,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099701020] [2022-07-22 00:36:09,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:36:09,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:36:09,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:36:09,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:36:09,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:36:09,381 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:36:09,398 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2022-07-22 00:36:09,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:36:09,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-22 00:36:09,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:36:09,399 INFO L225 Difference]: With dead ends: 25 [2022-07-22 00:36:09,399 INFO L226 Difference]: Without dead ends: 24 [2022-07-22 00:36:09,399 INFO L412 NwaCegarLoop]: 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 [2022-07-22 00:36:09,401 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:36:09,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:36:09,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-07-22 00:36:09,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-07-22 00:36:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-07-22 00:36:09,406 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 9 [2022-07-22 00:36:09,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:36:09,407 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-07-22 00:36:09,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,407 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-07-22 00:36:09,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 00:36:09,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:36:09,408 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:36:09,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 00:36:09,408 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:36:09,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:36:09,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1214572622, now seen corresponding path program 1 times [2022-07-22 00:36:09,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:36:09,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592656896] [2022-07-22 00:36:09,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:36:09,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:36:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:36:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:09,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:36:09,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592656896] [2022-07-22 00:36:09,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592656896] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:36:09,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804334621] [2022-07-22 00:36:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:36:09,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:36:09,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:36:09,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:36:09,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 00:36:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:36:09,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:36:09,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:36:09,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:09,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:36:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:09,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804334621] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:36:09,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:36:09,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-22 00:36:09,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290100512] [2022-07-22 00:36:09,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:36:09,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:36:09,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:36:09,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:36:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:36:09,596 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:36:09,672 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2022-07-22 00:36:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 00:36:09,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-22 00:36:09,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:36:09,673 INFO L225 Difference]: With dead ends: 34 [2022-07-22 00:36:09,673 INFO L226 Difference]: Without dead ends: 32 [2022-07-22 00:36:09,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-07-22 00:36:09,674 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 40 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:36:09,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 36 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:36:09,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-22 00:36:09,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2022-07-22 00:36:09,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-07-22 00:36:09,678 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-07-22 00:36:09,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:36:09,678 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-07-22 00:36:09,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:09,678 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-07-22 00:36:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 00:36:09,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:36:09,678 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:36:09,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 00:36:09,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:36:09,903 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:36:09,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:36:09,903 INFO L85 PathProgramCache]: Analyzing trace with hash -960458578, now seen corresponding path program 1 times [2022-07-22 00:36:09,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:36:09,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985655224] [2022-07-22 00:36:09,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:36:09,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:36:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:36:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:09,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:36:09,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985655224] [2022-07-22 00:36:09,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985655224] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:36:09,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708012824] [2022-07-22 00:36:09,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:36:09,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:36:09,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:36:09,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:36:09,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 00:36:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:36:10,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:36:10,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:36:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:10,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:36:10,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:36:10,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708012824] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:36:10,111 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:36:10,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-22 00:36:10,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066195640] [2022-07-22 00:36:10,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:36:10,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:36:10,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:36:10,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:36:10,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:36:10,112 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:10,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:36:10,208 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-07-22 00:36:10,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 00:36:10,208 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-22 00:36:10,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:36:10,209 INFO L225 Difference]: With dead ends: 23 [2022-07-22 00:36:10,209 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 00:36:10,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-07-22 00:36:10,215 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:36:10,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 60 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:36:10,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 00:36:10,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 00:36:10,216 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) [2022-07-22 00:36:10,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 00:36:10,216 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-07-22 00:36:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:36:10,216 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 00:36:10,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:36:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 00:36:10,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 00:36:10,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-07-22 00:36:10,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-07-22 00:36:10,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-07-22 00:36:10,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-07-22 00:36:10,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 00:36:10,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-22 00:36:10,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 00:36:10,592 INFO L899 garLoopResultBuilder]: For program point pEXIT(lines 12 22) no Hoare annotation was computed. [2022-07-22 00:36:10,592 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-07-22 00:36:10,592 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 20) no Hoare annotation was computed. [2022-07-22 00:36:10,592 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-07-22 00:36:10,593 INFO L902 garLoopResultBuilder]: At program point pENTRY(lines 12 22) the Hoare annotation is: true [2022-07-22 00:36:10,593 INFO L895 garLoopResultBuilder]: At program point L17-2(line 17) the Hoare annotation is: (or (not (<= |p_#in~m| 2147483647)) (not (<= |p_#in~n| 2147483647)) (not (<= |p_#in~r| 2147483647)) (and (<= 1 p_~n) (<= p_~r 2147483647) (<= p_~n 2147483647) (<= p_~m 2147483647))) [2022-07-22 00:36:10,593 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2022-07-22 00:36:10,593 INFO L899 garLoopResultBuilder]: For program point L17-3(line 17) no Hoare annotation was computed. [2022-07-22 00:36:10,593 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 21) no Hoare annotation was computed. [2022-07-22 00:36:10,593 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2022-07-22 00:36:10,593 INFO L899 garLoopResultBuilder]: For program point pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-07-22 00:36:10,593 INFO L895 garLoopResultBuilder]: At program point L14-2(line 14) the Hoare annotation is: (let ((.cse0 (not (<= |p_#in~m| 2147483647))) (.cse1 (not (<= |p_#in~n| 2147483647))) (.cse2 (not (<= |p_#in~r| 2147483647)))) (and (or .cse0 (<= p_~r 2147483647) .cse1 .cse2) (or (and (<= 1 p_~r) (<= p_~n 2147483647) (<= p_~m 2147483647)) .cse0 .cse1 .cse2))) [2022-07-22 00:36:10,593 INFO L899 garLoopResultBuilder]: For program point L14-3(line 14) no Hoare annotation was computed. [2022-07-22 00:36:10,593 INFO L899 garLoopResultBuilder]: For program point pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-07-22 00:36:10,593 INFO L899 garLoopResultBuilder]: For program point pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-07-22 00:36:10,594 INFO L899 garLoopResultBuilder]: For program point pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-07-22 00:36:10,594 INFO L899 garLoopResultBuilder]: For program point pFINAL(lines 12 22) no Hoare annotation was computed. [2022-07-22 00:36:10,594 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 00:36:10,594 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 00:36:10,594 INFO L895 garLoopResultBuilder]: At program point L31(lines 24 32) the Hoare annotation is: (<= |ULTIMATE.start_main_~r~0#1| 2147483647) [2022-07-22 00:36:10,594 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 00:36:10,594 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2022-07-22 00:36:10,594 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 00:36:10,594 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 30) no Hoare annotation was computed. [2022-07-22 00:36:10,594 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-07-22 00:36:10,594 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2022-07-22 00:36:10,596 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-22 00:36:10,597 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 00:36:10,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:36:10 BoogieIcfgContainer [2022-07-22 00:36:10,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 00:36:10,605 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 00:36:10,605 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 00:36:10,606 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 00:36:10,606 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:36:08" (3/4) ... [2022-07-22 00:36:10,607 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 00:36:10,611 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure p [2022-07-22 00:36:10,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-07-22 00:36:10,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-22 00:36:10,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 00:36:10,630 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 00:36:10,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 00:36:10,630 INFO L158 Benchmark]: Toolchain (without parser) took 2352.11ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 49.2MB in the beginning and 47.4MB in the end (delta: 1.8MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2022-07-22 00:36:10,630 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:36:10,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 147.90ms. Allocated memory is still 69.2MB. Free memory was 49.0MB in the beginning and 40.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 00:36:10,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.57ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 52.5MB in the end (delta: -12.3MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-07-22 00:36:10,631 INFO L158 Benchmark]: Boogie Preprocessor took 14.71ms. Allocated memory is still 69.2MB. Free memory was 52.5MB in the beginning and 51.8MB in the end (delta: 785.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:36:10,631 INFO L158 Benchmark]: RCFGBuilder took 204.80ms. Allocated memory is still 69.2MB. Free memory was 51.8MB in the beginning and 42.4MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 00:36:10,631 INFO L158 Benchmark]: TraceAbstraction took 1902.29ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 41.9MB in the beginning and 50.1MB in the end (delta: -8.2MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-07-22 00:36:10,631 INFO L158 Benchmark]: Witness Printer took 24.51ms. Allocated memory is still 86.0MB. Free memory was 50.1MB in the beginning and 47.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:36:10,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 147.90ms. Allocated memory is still 69.2MB. Free memory was 49.0MB in the beginning and 40.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.57ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 52.5MB in the end (delta: -12.3MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.71ms. Allocated memory is still 69.2MB. Free memory was 52.5MB in the beginning and 51.8MB in the end (delta: 785.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 204.80ms. Allocated memory is still 69.2MB. Free memory was 51.8MB in the beginning and 42.4MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1902.29ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 41.9MB in the beginning and 50.1MB in the end (delta: -8.2MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Witness Printer took 24.51ms. Allocated memory is still 86.0MB. Free memory was 50.1MB in the beginning and 47.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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 2 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 241 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 86 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 36, 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, 6 MinimizatonAttempts, 29 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 80 HoareAnnotationTreeSize, 17 FomulaSimplifications, 220 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 154 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 4 NumberOfNonLiveVariables, 91 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 0/15 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: 24]: Loop Invariant Derived loop invariant: r <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-07-22 00:36:10,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE