./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Hanoi_3vars.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Hanoi_3vars.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3 --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 218d2b8b3959cb3e7d9010f0243d7413297b708c ...................................................................................................................................................................................................................................................... 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 0.2.1-dev-5709675 [2021-10-15 19:23:17,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:23:17,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:23:17,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:23:17,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:23:17,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:23:17,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:23:17,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:23:17,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:23:17,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:23:17,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:23:17,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:23:17,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:23:17,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:23:17,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:23:17,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:23:17,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:23:17,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:23:17,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:23:17,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:23:17,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:23:17,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:23:17,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:23:17,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:23:17,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:23:17,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:23:17,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:23:17,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:23:17,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:23:17,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:23:17,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:23:17,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:23:17,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:23:17,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:23:17,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:23:17,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:23:17,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:23:17,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:23:17,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:23:17,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:23:17,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:23:17,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-15 19:23:17,785 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:23:17,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:23:17,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:23:17,787 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:23:17,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:23:17,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:23:17,790 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:23:17,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:23:17,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:23:17,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:23:17,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:23:17,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:23:17,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:23:17,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:23:17,794 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-15 19:23:17,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:23:17,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:23:17,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:23:17,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:23:17,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:23:17,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:23:17,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:23:17,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:23:17,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:23:17,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:23:17,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:23:17,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:23:17,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:23:17,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:23:17,801 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_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 218d2b8b3959cb3e7d9010f0243d7413297b708c [2021-10-15 19:23:18,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:23:18,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:23:18,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:23:18,175 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:23:18,176 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:23:18,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-crafted/Hanoi_3vars.c [2021-10-15 19:23:18,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/data/5f1d8aa3e/fe34d2ccd9404b5284f4a5f194ded8aa/FLAG030a79931 [2021-10-15 19:23:18,793 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:23:18,794 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/sv-benchmarks/c/termination-crafted/Hanoi_3vars.c [2021-10-15 19:23:18,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/data/5f1d8aa3e/fe34d2ccd9404b5284f4a5f194ded8aa/FLAG030a79931 [2021-10-15 19:23:19,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/data/5f1d8aa3e/fe34d2ccd9404b5284f4a5f194ded8aa [2021-10-15 19:23:19,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:23:19,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:23:19,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:23:19,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:23:19,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:23:19,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42de0125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19, skipping insertion in model container [2021-10-15 19:23:19,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:23:19,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:23:19,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:23:19,412 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:23:19,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:23:19,442 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:23:19,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19 WrapperNode [2021-10-15 19:23:19,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:23:19,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:23:19,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:23:19,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:23:19,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:23:19,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:23:19,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:23:19,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:23:19,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:23:19,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:23:19,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:23:19,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:23:19,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (1/1) ... [2021-10-15 19:23:19,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:23:19,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:23:19,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:23:19,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:23:19,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:23:19,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:23:19,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:23:19,898 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-15 19:23:19,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:23:19 BoogieIcfgContainer [2021-10-15 19:23:19,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:23:19,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:23:19,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:23:19,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:23:19,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:23:19" (1/3) ... [2021-10-15 19:23:19,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548f22d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:23:19, skipping insertion in model container [2021-10-15 19:23:19,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:19" (2/3) ... [2021-10-15 19:23:19,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548f22d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:23:19, skipping insertion in model container [2021-10-15 19:23:19,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:23:19" (3/3) ... [2021-10-15 19:23:19,926 INFO L111 eAbstractionObserver]: Analyzing ICFG Hanoi_3vars.c [2021-10-15 19:23:19,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:23:19,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-15 19:23:20,022 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:23:20,031 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, mConcurrency=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 [2021-10-15 19:23:20,045 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-15 19:23:20,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 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) [2021-10-15 19:23:20,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-15 19:23:20,080 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:23:20,081 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-15 19:23:20,082 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)] === [2021-10-15 19:23:20,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:23:20,089 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-15 19:23:20,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:23:20,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972930641] [2021-10-15 19:23:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:23:20,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:23:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:23:20,255 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:23:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:23:20,288 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:23:20,290 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:23:20,292 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:23:20,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:23:20,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:23:20,302 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:23:20,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:23:20,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:23:20,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:23:20,328 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:23:20,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:23:20 BoogieIcfgContainer [2021-10-15 19:23:20,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:23:20,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:23:20,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:23:20,360 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:23:20,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:23:19" (3/4) ... [2021-10-15 19:23:20,364 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-15 19:23:20,416 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:23:20,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:23:20,420 INFO L168 Benchmark]: Toolchain (without parser) took 1248.27 ms. Allocated memory is still 100.7 MB. Free memory was 62.6 MB in the beginning and 54.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:20,421 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 100.7 MB. Free memory is still 78.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:23:20,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.15 ms. Allocated memory is still 100.7 MB. Free memory was 62.3 MB in the beginning and 78.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:20,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.15 ms. Allocated memory is still 100.7 MB. Free memory was 78.3 MB in the beginning and 77.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:23:20,427 INFO L168 Benchmark]: Boogie Preprocessor took 41.90 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 76.2 MB in the end (delta: 821.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:23:20,428 INFO L168 Benchmark]: RCFGBuilder took 372.81 ms. Allocated memory is still 100.7 MB. Free memory was 76.2 MB in the beginning and 67.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:20,432 INFO L168 Benchmark]: TraceAbstraction took 438.31 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 55.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:20,432 INFO L168 Benchmark]: Witness Printer took 57.45 ms. Allocated memory is still 100.7 MB. Free memory was 55.3 MB in the beginning and 54.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:20,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 100.7 MB. Free memory is still 78.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.15 ms. Allocated memory is still 100.7 MB. Free memory was 62.3 MB in the beginning and 78.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.15 ms. Allocated memory is still 100.7 MB. Free memory was 78.3 MB in the beginning and 77.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.90 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 76.2 MB in the end (delta: 821.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 372.81 ms. Allocated memory is still 100.7 MB. Free memory was 76.2 MB in the beginning and 67.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 438.31 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 55.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 57.45 ms. Allocated memory is still 100.7 MB. Free memory was 55.3 MB in the beginning and 54.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x, y, z; [L13] x = __VERIFIER_nondet_int() [L14] y = __VERIFIER_nondet_int() [L15] z = __VERIFIER_nondet_int() [L16] COND TRUE x > 0 [L17] x + y - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 321.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 22.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.0ms SsaConstructionTime, 23.0ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2021-10-15 19:23:20,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9530725d-1993-41b0-9408-d36af40a3eb5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...