./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/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 7b8d2b598ac3326e286016998f443939dfd4be1d ............................................................................................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-02 04:47:46,067 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 04:47:46,068 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 04:47:46,076 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 04:47:46,077 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 04:47:46,077 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 04:47:46,078 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 04:47:46,080 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 04:47:46,081 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 04:47:46,081 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 04:47:46,082 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 04:47:46,082 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 04:47:46,083 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 04:47:46,084 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 04:47:46,084 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 04:47:46,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 04:47:46,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 04:47:46,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 04:47:46,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 04:47:46,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 04:47:46,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 04:47:46,091 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 04:47:46,093 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 04:47:46,093 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 04:47:46,093 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 04:47:46,094 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 04:47:46,094 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 04:47:46,095 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 04:47:46,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 04:47:46,096 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 04:47:46,096 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 04:47:46,097 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 04:47:46,097 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 04:47:46,097 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 04:47:46,098 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 04:47:46,098 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 04:47:46,098 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-12-02 04:47:46,109 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 04:47:46,109 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 04:47:46,109 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 04:47:46,110 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 04:47:46,110 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 04:47:46,110 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 04:47:46,110 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 04:47:46,110 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 04:47:46,111 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 04:47:46,111 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 04:47:46,111 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 04:47:46,111 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 04:47:46,111 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 04:47:46,111 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 04:47:46,111 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 04:47:46,111 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 04:47:46,112 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 04:47:46,112 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 04:47:46,112 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 04:47:46,112 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 04:47:46,112 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 04:47:46,112 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 04:47:46,112 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 04:47:46,113 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 04:47:46,113 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 04:47:46,113 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 04:47:46,113 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 04:47:46,113 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 04:47:46,113 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 04:47:46,113 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/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 -> 7b8d2b598ac3326e286016998f443939dfd4be1d [2018-12-02 04:47:46,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 04:47:46,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 04:47:46,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 04:47:46,146 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 04:47:46,147 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 04:47:46,147 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a_false-no-overflow.c [2018-12-02 04:47:46,184 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/data/144a3fdcd/175eb997df944d53acaf98a28d06a820/FLAGba1633d50 [2018-12-02 04:47:46,596 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 04:47:46,596 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a_false-no-overflow.c [2018-12-02 04:47:46,599 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/data/144a3fdcd/175eb997df944d53acaf98a28d06a820/FLAGba1633d50 [2018-12-02 04:47:46,607 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/data/144a3fdcd/175eb997df944d53acaf98a28d06a820 [2018-12-02 04:47:46,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 04:47:46,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 04:47:46,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 04:47:46,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 04:47:46,612 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 04:47:46,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753418dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46, skipping insertion in model container [2018-12-02 04:47:46,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 04:47:46,626 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 04:47:46,706 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:47:46,709 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 04:47:46,718 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:47:46,725 INFO L195 MainTranslator]: Completed translation [2018-12-02 04:47:46,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46 WrapperNode [2018-12-02 04:47:46,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 04:47:46,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 04:47:46,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 04:47:46,726 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 04:47:46,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 04:47:46,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 04:47:46,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 04:47:46,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 04:47:46,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... [2018-12-02 04:47:46,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 04:47:46,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 04:47:46,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 04:47:46,750 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 04:47:46,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/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 [2018-12-02 04:47:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 04:47:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 04:47:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 04:47:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 04:47:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 04:47:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 04:47:46,920 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 04:47:46,920 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 04:47:46,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:47:46 BoogieIcfgContainer [2018-12-02 04:47:46,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 04:47:46,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 04:47:46,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 04:47:46,923 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 04:47:46,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:47:46" (1/3) ... [2018-12-02 04:47:46,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecde41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:47:46, skipping insertion in model container [2018-12-02 04:47:46,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:47:46" (2/3) ... [2018-12-02 04:47:46,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecde41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:47:46, skipping insertion in model container [2018-12-02 04:47:46,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:47:46" (3/3) ... [2018-12-02 04:47:46,925 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig2a_false-no-overflow.c [2018-12-02 04:47:46,932 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 04:47:46,936 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-12-02 04:47:46,947 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-12-02 04:47:46,965 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 04:47:46,965 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 04:47:46,965 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 04:47:46,965 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 04:47:46,965 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 04:47:46,965 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 04:47:46,965 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 04:47:46,966 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 04:47:46,966 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 04:47:46,976 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-12-02 04:47:46,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 04:47:46,979 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:47:46,980 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:47:46,981 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 04:47:46,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:47:46,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1734695741, now seen corresponding path program 1 times [2018-12-02 04:47:46,986 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:47:46,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:47:47,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:47:47,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:47:47,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:47:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:47:47,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:47:47,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:47:47,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 04:47:47,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 04:47:47,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 04:47:47,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:47:47,081 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2018-12-02 04:47:47,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:47:47,118 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions. [2018-12-02 04:47:47,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 04:47:47,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-02 04:47:47,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:47:47,125 INFO L225 Difference]: With dead ends: 61 [2018-12-02 04:47:47,125 INFO L226 Difference]: Without dead ends: 27 [2018-12-02 04:47:47,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:47:47,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-02 04:47:47,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-02 04:47:47,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-02 04:47:47,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2018-12-02 04:47:47,147 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 7 [2018-12-02 04:47:47,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:47:47,147 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2018-12-02 04:47:47,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 04:47:47,148 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-12-02 04:47:47,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 04:47:47,148 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:47:47,148 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:47:47,148 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 04:47:47,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:47:47,149 INFO L82 PathProgramCache]: Analyzing trace with hash -2059006830, now seen corresponding path program 1 times [2018-12-02 04:47:47,149 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:47:47,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:47:47,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:47:47,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:47:47,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:47:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:47:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:47:47,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:47:47,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 04:47:47,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 04:47:47,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 04:47:47,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:47:47,161 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 3 states. [2018-12-02 04:47:47,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:47:47,184 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2018-12-02 04:47:47,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 04:47:47,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-02 04:47:47,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:47:47,184 INFO L225 Difference]: With dead ends: 27 [2018-12-02 04:47:47,184 INFO L226 Difference]: Without dead ends: 26 [2018-12-02 04:47:47,185 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:47:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-02 04:47:47,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-12-02 04:47:47,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-02 04:47:47,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-12-02 04:47:47,187 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 8 [2018-12-02 04:47:47,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:47:47,187 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-12-02 04:47:47,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 04:47:47,188 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-12-02 04:47:47,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 04:47:47,188 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:47:47,188 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:47:47,188 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 04:47:47,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:47:47,188 INFO L82 PathProgramCache]: Analyzing trace with hash 595297759, now seen corresponding path program 1 times [2018-12-02 04:47:47,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:47:47,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:47:47,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:47:47,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:47:47,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:47:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 04:47:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 04:47:47,207 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 04:47:47,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:47:47 BoogieIcfgContainer [2018-12-02 04:47:47,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 04:47:47,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 04:47:47,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 04:47:47,220 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 04:47:47,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:47:46" (3/4) ... [2018-12-02 04:47:47,222 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 04:47:47,244 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_66b43844-065d-4098-8a25-2a6953ca4b65/bin-2019/uautomizer/witness.graphml [2018-12-02 04:47:47,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 04:47:47,244 INFO L168 Benchmark]: Toolchain (without parser) took 635.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 959.7 MB in the beginning and 1.1 GB in the end (delta: -95.3 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2018-12-02 04:47:47,245 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:47:47,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 115.60 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 949.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 04:47:47,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.62 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:47:47,246 INFO L168 Benchmark]: Boogie Preprocessor took 12.14 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:47:47,246 INFO L168 Benchmark]: RCFGBuilder took 170.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-02 04:47:47,246 INFO L168 Benchmark]: TraceAbstraction took 298.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2018-12-02 04:47:47,247 INFO L168 Benchmark]: Witness Printer took 23.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:47:47,248 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 115.60 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 949.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.62 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.14 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 170.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 298.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * Witness Printer took 23.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE x >= 2 VAL [x=3, y=2147483646] [L18] EXPR x - 1 [L18] x = x - 1 VAL [x=2, y=2147483646] [L19] y + x VAL [x=2, y=2147483646] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 10 error locations. UNSAFE Result, 0.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 24 SDslu, 18 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...