./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c -s /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer --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 7660a5e2f9f2a21129eb39e58701014cfc465dc2 ............................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 08:54:13,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:13,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:13,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:13,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:13,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:13,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:13,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:13,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:13,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:13,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:13,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:13,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:13,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:13,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:13,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:13,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:13,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:13,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:13,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:13,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:13,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:13,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:13,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:13,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:13,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:13,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:13,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:13,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:13,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:13,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:13,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:13,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:13,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:13,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:13,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:13,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:13,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:13,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:13,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:13,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:13,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-10-22 08:54:13,857 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:13,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:13,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:13,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:13,859 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:13,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:13,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:54:13,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:13,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:13,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:13,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:13,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:13,860 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 08:54:13,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:13,860 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:13,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:13,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:13,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:13,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:13,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:13,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:13,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:13,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:13,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:13,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:13,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:13,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:13,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer 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 -> 7660a5e2f9f2a21129eb39e58701014cfc465dc2 [2019-10-22 08:54:13,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:13,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:13,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:13,911 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:13,911 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:13,913 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2019-10-22 08:54:13,965 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/data/69ff864e3/d808c41c6965446a9299327545a61524/FLAGe0138afaf [2019-10-22 08:54:14,368 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:14,368 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2019-10-22 08:54:14,373 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/data/69ff864e3/d808c41c6965446a9299327545a61524/FLAGe0138afaf [2019-10-22 08:54:14,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/data/69ff864e3/d808c41c6965446a9299327545a61524 [2019-10-22 08:54:14,758 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:14,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:14,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:14,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:14,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:14,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:14" (1/1) ... [2019-10-22 08:54:14,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7464cab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:14, skipping insertion in model container [2019-10-22 08:54:14,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:14" (1/1) ... [2019-10-22 08:54:14,773 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:14,786 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:14,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:14,959 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:15,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:15,069 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:15,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15 WrapperNode [2019-10-22 08:54:15,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:15,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:15,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:15,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:15,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... [2019-10-22 08:54:15,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... [2019-10-22 08:54:15,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:15,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:15,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:15,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:15,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... [2019-10-22 08:54:15,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... [2019-10-22 08:54:15,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... [2019-10-22 08:54:15,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... [2019-10-22 08:54:15,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... [2019-10-22 08:54:15,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... [2019-10-22 08:54:15,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... [2019-10-22 08:54:15,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:15,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:15,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:15,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:15,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/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 [2019-10-22 08:54:15,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:15,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:15,311 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:15,311 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:54:15,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:15 BoogieIcfgContainer [2019-10-22 08:54:15,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:15,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:15,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:15,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:15,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:14" (1/3) ... [2019-10-22 08:54:15,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e39d8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:15, skipping insertion in model container [2019-10-22 08:54:15,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:15" (2/3) ... [2019-10-22 08:54:15,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e39d8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:15, skipping insertion in model container [2019-10-22 08:54:15,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:15" (3/3) ... [2019-10-22 08:54:15,319 INFO L109 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7.c [2019-10-22 08:54:15,327 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:15,334 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-10-22 08:54:15,346 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-10-22 08:54:15,373 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:15,377 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:15,377 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:15,377 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:15,378 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:15,378 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:15,378 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:15,378 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:15,394 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-22 08:54:15,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:54:15,400 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:15,401 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:54:15,403 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:15,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:15,408 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-10-22 08:54:15,415 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:15,416 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705984749] [2019-10-22 08:54:15,416 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,416 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:15,539 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:15,539 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:15,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:15 BoogieIcfgContainer [2019-10-22 08:54:15,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:15,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:15,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:15,555 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:15,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:15" (3/4) ... [2019-10-22 08:54:15,558 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:54:15,586 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_70b8fe75-dbd1-49b1-8d93-0632a311b632/bin/uautomizer/witness.graphml [2019-10-22 08:54:15,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:15,588 INFO L168 Benchmark]: Toolchain (without parser) took 828.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -132.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:15,588 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:15,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -174.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:15,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:15,590 INFO L168 Benchmark]: Boogie Preprocessor took 21.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:15,590 INFO L168 Benchmark]: RCFGBuilder took 187.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:15,590 INFO L168 Benchmark]: TraceAbstraction took 241.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:15,591 INFO L168 Benchmark]: Witness Printer took 30.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:15,593 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -174.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 187.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 241.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Witness Printer took 30.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 [L23] COND TRUE i