./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC --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 d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:22:56,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:22:56,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:22:56,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:22:56,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:22:56,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:22:56,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:22:56,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:22:56,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:22:56,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:22:56,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:22:56,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:22:56,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:22:56,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:22:56,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:22:56,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:22:56,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:22:56,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:22:56,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:22:56,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:22:56,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:22:56,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:22:56,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:22:56,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:22:56,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:22:56,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:22:56,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:22:56,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:22:56,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:22:56,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:22:56,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:22:56,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:22:56,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:22:56,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:22:56,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:22:56,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:22:56,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:22:56,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:22:56,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:22:56,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:22:56,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:22:56,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:22:56,591 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:22:56,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:22:56,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:22:56,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:22:56,593 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:22:56,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:22:56,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:22:56,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:22:56,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:22:56,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:22:56,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:22:56,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:22:56,595 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:22:56,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:22:56,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:22:56,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:22:56,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:22:56,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:22:56,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:22:56,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:22:56,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:22:56,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:22:56,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:22:56,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:22:56,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:22:56,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:22:56,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:22:56,598 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe [2021-10-11 00:22:56,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:22:56,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:22:56,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:22:56,860 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:22:56,861 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:22:56,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c [2021-10-11 00:22:56,966 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/data/0463a3159/fa53b4762acc42569cf0ce2bb74bbdb3/FLAG6ea6be758 [2021-10-11 00:22:57,493 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:22:57,494 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c [2021-10-11 00:22:57,500 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/data/0463a3159/fa53b4762acc42569cf0ce2bb74bbdb3/FLAG6ea6be758 [2021-10-11 00:22:57,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/data/0463a3159/fa53b4762acc42569cf0ce2bb74bbdb3 [2021-10-11 00:22:57,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:22:57,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:22:57,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:57,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:22:57,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:22:57,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:57" (1/1) ... [2021-10-11 00:22:57,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3965f78f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:57, skipping insertion in model container [2021-10-11 00:22:57,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:57" (1/1) ... [2021-10-11 00:22:57,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:22:57,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:22:58,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:58,110 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:22:58,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:58,142 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:22:58,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58 WrapperNode [2021-10-11 00:22:58,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:58,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:22:58,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:22:58,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:22:58,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... [2021-10-11 00:22:58,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... [2021-10-11 00:22:58,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:22:58,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:22:58,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:22:58,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:22:58,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... [2021-10-11 00:22:58,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... [2021-10-11 00:22:58,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... [2021-10-11 00:22:58,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... [2021-10-11 00:22:58,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... [2021-10-11 00:22:58,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... [2021-10-11 00:22:58,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... [2021-10-11 00:22:58,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:22:58,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:22:58,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:22:58,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:22:58,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:22:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:22:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:22:58,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:22:58,590 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:22:58,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:58 BoogieIcfgContainer [2021-10-11 00:22:58,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:22:58,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:22:58,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:22:58,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:22:58,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:22:57" (1/3) ... [2021-10-11 00:22:58,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2741a76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:58, skipping insertion in model container [2021-10-11 00:22:58,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:58" (2/3) ... [2021-10-11 00:22:58,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2741a76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:58, skipping insertion in model container [2021-10-11 00:22:58,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:58" (3/3) ... [2021-10-11 00:22:58,614 INFO L111 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-ICALP2005-Fig1.c [2021-10-11 00:22:58,629 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:22:58,633 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2021-10-11 00:22:58,644 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-10-11 00:22:58,670 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:22:58,670 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:22:58,671 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:22:58,671 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:22:58,671 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:22:58,671 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:22:58,671 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:22:58,672 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:22:58,687 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-10-11 00:22:58,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 00:22:58,693 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:58,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 00:22:58,694 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:22:58,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:58,700 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2021-10-11 00:22:58,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:58,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051070300] [2021-10-11 00:22:58,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:58,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:22:58,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051070300] [2021-10-11 00:22:58,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:58,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:22:58,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741532493] [2021-10-11 00:22:58,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:22:58,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:58,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:22:58,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:22:58,984 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2021-10-11 00:22:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:59,171 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2021-10-11 00:22:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:22:59,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 00:22:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:59,184 INFO L225 Difference]: With dead ends: 51 [2021-10-11 00:22:59,184 INFO L226 Difference]: Without dead ends: 38 [2021-10-11 00:22:59,191 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 [2021-10-11 00:22:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-11 00:22:59,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 24. [2021-10-11 00:22:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-11 00:22:59,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-10-11 00:22:59,248 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 3 [2021-10-11 00:22:59,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:59,249 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-10-11 00:22:59,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:22:59,249 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-10-11 00:22:59,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:22:59,250 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:59,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:22:59,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:22:59,253 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:22:59,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:59,259 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2021-10-11 00:22:59,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:59,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091734830] [2021-10-11 00:22:59,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:59,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:59,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:59,336 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:59,336 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:22:59,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:22:59,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:22:59 BoogieIcfgContainer [2021-10-11 00:22:59,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:22:59,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:22:59,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:22:59,360 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:22:59,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:58" (3/4) ... [2021-10-11 00:22:59,364 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:22:59,408 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a426c9-b6a8-4a45-98eb-ff1d606d800c/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:22:59,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:22:59,415 INFO L168 Benchmark]: Toolchain (without parser) took 1533.71 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 58.6 MB in the beginning and 82.9 MB in the end (delta: -24.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:59,416 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:59,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.22 ms. Allocated memory is still 92.3 MB. Free memory was 58.4 MB in the beginning and 69.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:59,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.78 ms. Allocated memory is still 92.3 MB. Free memory was 69.0 MB in the beginning and 67.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:59,419 INFO L168 Benchmark]: Boogie Preprocessor took 19.74 ms. Allocated memory is still 92.3 MB. Free memory was 67.5 MB in the beginning and 66.6 MB in the end (delta: 878.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:59,420 INFO L168 Benchmark]: RCFGBuilder took 395.54 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 55.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:59,424 INFO L168 Benchmark]: TraceAbstraction took 765.02 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 54.7 MB in the beginning and 84.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:59,425 INFO L168 Benchmark]: Witness Printer took 48.94 ms. Allocated memory is still 121.6 MB. Free memory was 84.4 MB in the beginning and 82.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:59,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 263.22 ms. Allocated memory is still 92.3 MB. Free memory was 58.4 MB in the beginning and 69.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.78 ms. Allocated memory is still 92.3 MB. Free memory was 69.0 MB in the beginning and 67.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.74 ms. Allocated memory is still 92.3 MB. Free memory was 67.5 MB in the beginning and 66.6 MB in the end (delta: 878.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 395.54 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 55.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 765.02 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 54.7 MB in the beginning and 84.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Witness Printer took 48.94 ms. Allocated memory is still 121.6 MB. Free memory was 84.4 MB in the beginning and 82.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y, N; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] N = __VERIFIER_nondet_int() [L21] COND TRUE N < 536870912 && x < 536870912 && y < 536870912 && x >= -1073741824 [L22] x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 22 SDslu, 5 SDs, 0 SdLazy, 39 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 1 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 incorrect! Received shutdown request...