./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6c672e39437b64d6e9cb9cb97996c418b00fa547966c3f2e660d54aae5ea7064 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:08:22,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:08:22,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:08:23,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:08:23,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:08:23,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:08:23,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:08:23,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:08:23,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:08:23,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:08:23,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:08:23,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:08:23,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:08:23,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:08:23,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:08:23,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:08:23,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:08:23,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:08:23,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:08:23,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:08:23,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:08:23,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:08:23,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:08:23,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:08:23,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:08:23,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:08:23,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:08:23,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:08:23,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:08:23,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:08:23,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:08:23,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:08:23,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:08:23,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:08:23,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:08:23,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:08:23,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:08:23,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:08:23,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:08:23,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:08:23,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:08:23,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-19 05:08:23,130 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:08:23,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:08:23,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:08:23,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:08:23,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:08:23,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:08:23,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:08:23,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:08:23,134 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:08:23,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:08:23,139 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:08:23,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:08:23,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:08:23,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:08:23,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:08:23,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:08:23,140 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-19 05:08:23,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:08:23,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:08:23,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:08:23,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:08:23,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:08:23,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:08:23,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:08:23,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:08:23,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:08:23,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:08:23,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:08:23,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:08:23,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:08:23,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:08:23,146 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_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c672e39437b64d6e9cb9cb97996c418b00fa547966c3f2e660d54aae5ea7064 [2021-11-19 05:08:23,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:08:23,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:08:23,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:08:23,479 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:08:23,485 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:08:23,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2021-11-19 05:08:23,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/data/8bfb6d782/a80d91b9c8b7466f8cab65b30091b006/FLAG1ab833c9f [2021-11-19 05:08:24,070 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:08:24,071 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2021-11-19 05:08:24,083 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/data/8bfb6d782/a80d91b9c8b7466f8cab65b30091b006/FLAG1ab833c9f [2021-11-19 05:08:24,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/data/8bfb6d782/a80d91b9c8b7466f8cab65b30091b006 [2021-11-19 05:08:24,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:08:24,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:08:24,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:08:24,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:08:24,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:08:24,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3097d8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24, skipping insertion in model container [2021-11-19 05:08:24,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:08:24,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:08:24,632 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:08:24,635 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:08:24,654 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:08:24,663 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:08:24,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24 WrapperNode [2021-11-19 05:08:24,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:08:24,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:08:24,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:08:24,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:08:24,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,706 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2021-11-19 05:08:24,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:08:24,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:08:24,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:08:24,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:08:24,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:08:24,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:08:24,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:08:24,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:08:24,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (1/1) ... [2021-11-19 05:08:24,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:08:24,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:08:24,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:08:24,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:08:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:08:24,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:08:24,915 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:08:24,917 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:08:25,078 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:08:25,085 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:08:25,098 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 05:08:25,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:08:25 BoogieIcfgContainer [2021-11-19 05:08:25,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:08:25,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:08:25,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:08:25,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:08:25,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:08:24" (1/3) ... [2021-11-19 05:08:25,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138d2d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:08:25, skipping insertion in model container [2021-11-19 05:08:25,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:24" (2/3) ... [2021-11-19 05:08:25,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138d2d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:08:25, skipping insertion in model container [2021-11-19 05:08:25,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:08:25" (3/3) ... [2021-11-19 05:08:25,111 INFO L111 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7.c [2021-11-19 05:08:25,117 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:08:25,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-19 05:08:25,172 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:08:25,181 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:08:25,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-19 05:08:25,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:08:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-19 05:08:25,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:08:25,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-19 05:08:25,205 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-19 05:08:25,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:08:25,211 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2021-11-19 05:08:25,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:08:25,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314173734] [2021-11-19 05:08:25,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:08:25,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:08:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:08:25,301 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:08:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:08:25,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:08:25,330 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:08:25,332 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-11-19 05:08:25,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-11-19 05:08:25,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-11-19 05:08:25,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-11-19 05:08:25,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-11-19 05:08:25,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-11-19 05:08:25,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:08:25,341 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 05:08:25,345 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:08:25,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:08:25 BoogieIcfgContainer [2021-11-19 05:08:25,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:08:25,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:08:25,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:08:25,367 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:08:25,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:08:25" (3/4) ... [2021-11-19 05:08:25,369 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 05:08:25,406 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381ac88e-3089-40b2-a5a5-a99aa8f27645/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:08:25,406 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:08:25,407 INFO L158 Benchmark]: Toolchain (without parser) took 970.30ms. Allocated memory is still 130.0MB. Free memory was 92.5MB in the beginning and 78.9MB in the end (delta: 13.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-19 05:08:25,408 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 130.0MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:08:25,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.18ms. Allocated memory is still 130.0MB. Free memory was 92.4MB in the beginning and 105.6MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:08:25,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.17ms. Allocated memory is still 130.0MB. Free memory was 105.6MB in the beginning and 104.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:08:25,410 INFO L158 Benchmark]: Boogie Preprocessor took 21.56ms. Allocated memory is still 130.0MB. Free memory was 104.1MB in the beginning and 103.6MB in the end (delta: 518.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:08:25,410 INFO L158 Benchmark]: RCFGBuilder took 371.07ms. Allocated memory is still 130.0MB. Free memory was 103.1MB in the beginning and 94.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:08:25,411 INFO L158 Benchmark]: TraceAbstraction took 262.81ms. Allocated memory is still 130.0MB. Free memory was 93.6MB in the beginning and 81.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:08:25,411 INFO L158 Benchmark]: Witness Printer took 39.73ms. Allocated memory is still 130.0MB. Free memory was 80.5MB in the beginning and 78.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:08:25,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 130.0MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.18ms. Allocated memory is still 130.0MB. Free memory was 92.4MB in the beginning and 105.6MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.17ms. Allocated memory is still 130.0MB. Free memory was 105.6MB in the beginning and 104.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.56ms. Allocated memory is still 130.0MB. Free memory was 104.1MB in the beginning and 103.6MB in the end (delta: 518.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.07ms. Allocated memory is still 130.0MB. Free memory was 103.1MB in the beginning and 94.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 262.81ms. Allocated memory is still 130.0MB. Free memory was 93.6MB in the beginning and 81.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 39.73ms. Allocated memory is still 130.0MB. Free memory was 80.5MB in the beginning and 78.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a, b, c, i, j, M, N; [L16] i = __VERIFIER_nondet_int() [L17] j = __VERIFIER_nondet_int() [L18] M = __VERIFIER_nondet_int() [L19] N = __VERIFIER_nondet_int() [L20] a = i [L21] b = j [L22] c = 0 VAL [a=2147483647, b=0, c=0, i=2147483647, j=0, M=0, N=1] [L23] COND TRUE i