./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/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 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 0.1.24-678e011 [2019-11-20 07:22:27,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:22:27,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:22:27,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:22:27,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:22:27,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:22:27,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:22:27,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:22:27,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:22:27,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:22:27,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:22:27,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:22:27,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:22:27,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:22:27,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:22:27,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:22:27,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:22:27,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:22:27,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:22:27,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:22:27,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:22:27,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:22:27,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:22:27,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:22:27,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:22:27,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:22:27,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:22:27,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:22:27,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:22:27,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:22:27,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:22:27,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:22:27,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:22:27,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:22:27,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:22:27,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:22:27,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:22:27,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:22:27,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:22:27,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:22:27,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:22:27,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 07:22:27,970 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:22:27,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:22:27,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:22:27,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:22:27,972 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:22:27,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:22:27,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 07:22:27,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:22:27,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:22:27,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:22:27,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:22:27,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:22:27,974 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 07:22:27,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:22:27,974 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:22:27,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:22:27,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:22:27,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:22:27,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:22:27,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:22:27,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:22:27,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:22:27,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:22:27,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:22:27,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:22:27,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:22:27,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:22:27,977 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_ca0b0dc7-835c-4828-9bc6-405656ecefce/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 -> 7b8d2b598ac3326e286016998f443939dfd4be1d [2019-11-20 07:22:28,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:22:28,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:22:28,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:22:28,217 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:22:28,218 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:22:28,218 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a.c [2019-11-20 07:22:28,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/data/4cdf09468/25994bac9c0e463fbd1ed967e8dd627a/FLAGd10d4c085 [2019-11-20 07:22:28,738 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:22:28,740 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a.c [2019-11-20 07:22:28,746 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/data/4cdf09468/25994bac9c0e463fbd1ed967e8dd627a/FLAGd10d4c085 [2019-11-20 07:22:29,112 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/data/4cdf09468/25994bac9c0e463fbd1ed967e8dd627a [2019-11-20 07:22:29,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:22:29,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:22:29,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:22:29,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:22:29,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:22:29,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c43b09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29, skipping insertion in model container [2019-11-20 07:22:29,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,137 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:22:29,152 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:22:29,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:22:29,308 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:22:29,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:22:29,424 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:22:29,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29 WrapperNode [2019-11-20 07:22:29,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:22:29,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:22:29,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:22:29,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:22:29,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:22:29,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:22:29,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:22:29,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:22:29,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... [2019-11-20 07:22:29,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:22:29,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:22:29,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:22:29,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:22:29,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/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 [2019-11-20 07:22:29,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:22:29,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:22:29,873 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:22:29,873 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 07:22:29,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:29 BoogieIcfgContainer [2019-11-20 07:22:29,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:22:29,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:22:29,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:22:29,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:22:29,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:22:29" (1/3) ... [2019-11-20 07:22:29,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c81c657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:22:29, skipping insertion in model container [2019-11-20 07:22:29,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:29" (2/3) ... [2019-11-20 07:22:29,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c81c657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:22:29, skipping insertion in model container [2019-11-20 07:22:29,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:29" (3/3) ... [2019-11-20 07:22:29,879 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig2a.c [2019-11-20 07:22:29,888 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:22:29,895 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-20 07:22:29,906 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-20 07:22:29,938 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:22:29,938 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:22:29,942 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:22:29,943 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:22:29,943 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:22:29,944 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:22:29,944 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:22:29,944 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:22:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-11-20 07:22:29,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 07:22:29,979 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:22:29,980 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 07:22:29,981 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:22:29,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:22:29,988 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-20 07:22:29,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:22:29,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913111107] [2019-11-20 07:22:29,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:22:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:22:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:22:30,133 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913111107] [2019-11-20 07:22:30,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:22:30,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 07:22:30,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300466774] [2019-11-20 07:22:30,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:22:30,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:22:30,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:22:30,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:22:30,155 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2019-11-20 07:22:30,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:22:30,259 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2019-11-20 07:22:30,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:22:30,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-20 07:22:30,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:22:30,271 INFO L225 Difference]: With dead ends: 55 [2019-11-20 07:22:30,271 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 07:22:30,275 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:22:30,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 07:22:30,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 07:22:30,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 07:22:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-11-20 07:22:30,304 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 3 [2019-11-20 07:22:30,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:22:30,305 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-11-20 07:22:30,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:22:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-11-20 07:22:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 07:22:30,306 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:22:30,306 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 07:22:30,308 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:22:30,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:22:30,309 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-20 07:22:30,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:22:30,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357681355] [2019-11-20 07:22:30,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:22:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:22:30,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:22:30,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357681355] [2019-11-20 07:22:30,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:22:30,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 07:22:30,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114352194] [2019-11-20 07:22:30,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:22:30,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:22:30,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:22:30,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:22:30,332 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 3 states. [2019-11-20 07:22:30,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:22:30,374 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-11-20 07:22:30,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:22:30,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-20 07:22:30,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:22:30,375 INFO L225 Difference]: With dead ends: 23 [2019-11-20 07:22:30,375 INFO L226 Difference]: Without dead ends: 22 [2019-11-20 07:22:30,376 INFO L630 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 [2019-11-20 07:22:30,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-20 07:22:30,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-20 07:22:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 07:22:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-11-20 07:22:30,380 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 4 [2019-11-20 07:22:30,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:22:30,381 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-11-20 07:22:30,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:22:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-11-20 07:22:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 07:22:30,384 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:22:30,384 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 07:22:30,384 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:22:30,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:22:30,385 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2019-11-20 07:22:30,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:22:30,385 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96722866] [2019-11-20 07:22:30,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:22:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:22:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:22:30,427 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:22:30,427 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 07:22:30,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:22:30 BoogieIcfgContainer [2019-11-20 07:22:30,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:22:30,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:22:30,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:22:30,447 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:22:30,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:29" (3/4) ... [2019-11-20 07:22:30,451 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 07:22:30,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ca0b0dc7-835c-4828-9bc6-405656ecefce/bin/uautomizer/witness.graphml [2019-11-20 07:22:30,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:22:30,492 INFO L168 Benchmark]: Toolchain (without parser) took 1373.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -121.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:22:30,492 INFO L168 Benchmark]: CDTParser took 1.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:22:30,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:22:30,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.96 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. [2019-11-20 07:22:30,494 INFO L168 Benchmark]: Boogie Preprocessor took 20.01 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. [2019-11-20 07:22:30,495 INFO L168 Benchmark]: RCFGBuilder took 392.09 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:22:30,496 INFO L168 Benchmark]: TraceAbstraction took 571.55 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:22:30,497 INFO L168 Benchmark]: Witness Printer took 42.51 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. [2019-11-20 07:22:30,501 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.96 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 20.01 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. * RCFGBuilder took 392.09 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 571.55 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 42.51 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: 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 [L18] EXPR x - 1 [L18] x = x - 1 [L19] y + x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 10 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 25 SDslu, 8 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...