./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/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/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 [2019-11-16 00:37:27,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:37:27,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:37:27,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:37:27,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:37:27,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:37:27,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:37:27,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:37:27,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:37:27,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:37:27,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:37:27,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:37:27,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:37:27,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:37:27,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:37:27,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:37:27,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:37:27,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:37:27,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:37:27,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:37:27,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:37:27,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:37:27,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:37:27,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:37:27,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:37:27,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:37:27,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:37:27,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:37:27,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:37:27,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:37:27,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:37:27,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:37:27,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:37:27,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:37:27,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:37:27,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:37:27,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:37:27,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:37:27,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:37:27,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:37:27,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:37:27,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-16 00:37:27,887 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:37:27,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:37:27,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:37:27,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:37:27,889 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:37:27,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:37:27,889 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:37:27,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:37:27,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:37:27,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:37:27,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:37:27,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:37:27,891 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-16 00:37:27,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:37:27,891 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:37:27,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:37:27,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:37:27,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:37:27,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:37:27,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:37:27,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:37:27,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:37:27,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:37:27,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:37:27,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:37:27,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:37:27,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:37:27,894 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/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/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 [2019-11-16 00:37:27,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:37:27,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:37:27,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:37:27,955 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:37:27,955 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:37:27,956 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2019-11-16 00:37:28,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/data/91fbb7abf/82022b10e95940c9a5f1853362df94b3/FLAG22d564b3f [2019-11-16 00:37:28,468 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:37:28,469 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2019-11-16 00:37:28,476 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/data/91fbb7abf/82022b10e95940c9a5f1853362df94b3/FLAG22d564b3f [2019-11-16 00:37:28,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/data/91fbb7abf/82022b10e95940c9a5f1853362df94b3 [2019-11-16 00:37:28,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:37:28,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:37:28,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:37:28,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:37:28,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:37:28,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:28" (1/1) ... [2019-11-16 00:37:28,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648a5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:28, skipping insertion in model container [2019-11-16 00:37:28,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:28" (1/1) ... [2019-11-16 00:37:28,926 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:37:28,945 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:37:29,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:37:29,268 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:37:29,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:37:29,312 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:37:29,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29 WrapperNode [2019-11-16 00:37:29,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:37:29,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:37:29,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:37:29,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:37:29,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... [2019-11-16 00:37:29,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... [2019-11-16 00:37:29,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:37:29,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:37:29,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:37:29,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:37:29,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... [2019-11-16 00:37:29,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... [2019-11-16 00:37:29,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... [2019-11-16 00:37:29,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... [2019-11-16 00:37:29,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... [2019-11-16 00:37:29,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... [2019-11-16 00:37:29,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... [2019-11-16 00:37:29,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:37:29,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:37:29,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:37:29,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:37:29,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/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 [2019-11-16 00:37:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:37:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:37:29,658 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:37:29,658 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-16 00:37:29,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:29 BoogieIcfgContainer [2019-11-16 00:37:29,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:37:29,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:37:29,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:37:29,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:37:29,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:37:28" (1/3) ... [2019-11-16 00:37:29,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791902bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:29, skipping insertion in model container [2019-11-16 00:37:29,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:29" (2/3) ... [2019-11-16 00:37:29,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791902bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:29, skipping insertion in model container [2019-11-16 00:37:29,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:29" (3/3) ... [2019-11-16 00:37:29,668 INFO L109 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7.c [2019-11-16 00:37:29,679 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:37:29,686 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-16 00:37:29,698 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-16 00:37:29,757 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:37:29,757 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:37:29,757 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:37:29,758 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:37:29,758 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:37:29,758 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:37:29,758 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:37:29,758 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:37:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-16 00:37:29,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-16 00:37:29,799 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:37:29,800 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-16 00:37:29,802 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-16 00:37:29,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:37:29,812 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-16 00:37:29,834 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:37:29,853 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826546054] [2019-11-16 00:37:29,853 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:37:29,854 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:37:29,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:37:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:37:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:37:29,993 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:37:29,994 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:37:30,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:37:30 BoogieIcfgContainer [2019-11-16 00:37:30,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:37:30,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:37:30,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:37:30,016 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:37:30,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:29" (3/4) ... [2019-11-16 00:37:30,020 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:37:30,066 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cc2f2713-8698-4589-b3f8-afcd916358ef/bin/uautomizer/witness.graphml [2019-11-16 00:37:30,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:37:30,069 INFO L168 Benchmark]: Toolchain (without parser) took 1161.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:37:30,070 INFO L168 Benchmark]: CDTParser took 0.24 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. [2019-11-16 00:37:30,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -210.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:37:30,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:37:30,071 INFO L168 Benchmark]: Boogie Preprocessor took 35.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:37:30,072 INFO L168 Benchmark]: RCFGBuilder took 267.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:37:30,073 INFO L168 Benchmark]: TraceAbstraction took 354.89 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:37:30,073 INFO L168 Benchmark]: Witness Printer took 50.71 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:37:30,076 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 406.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -210.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 267.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 354.89 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 50.71 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: 5.4 MB). Peak memory consumption was 5.4 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