./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.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_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/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 687269bb6882b72a3d48999f1e5c55a1d5283a94 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 00:08:24,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:08:24,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:08:24,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:08:24,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:08:24,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:08:24,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:08:24,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:08:24,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:08:24,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:08:24,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:08:24,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:08:24,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:08:24,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:08:24,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:08:24,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:08:24,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:08:24,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:08:24,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:08:24,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:08:24,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:08:24,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:08:24,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:08:24,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:08:24,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:08:24,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:08:24,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:08:24,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:08:24,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:08:24,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:08:24,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:08:24,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:08:24,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:08:24,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:08:24,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:08:24,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:08:24,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:08:24,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:08:24,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:08:24,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:08:24,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:08:24,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 00:08:24,337 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:08:24,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:08:24,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:08:24,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:08:24,339 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:08:24,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:08:24,339 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:08:24,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:08:24,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:08:24,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:08:24,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:08:24,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:08:24,340 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 00:08:24,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:08:24,340 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:08:24,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:08:24,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:08:24,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:08:24,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:08:24,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:08:24,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:08:24,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:08:24,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:08:24,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:08:24,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:08:24,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:08:24,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:08:24,343 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_a1845c43-c705-46ee-9554-bc91e7257e62/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 -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2019-11-20 00:08:24,473 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:08:24,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:08:24,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:08:24,487 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:08:24,487 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:08:24,488 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2019-11-20 00:08:24,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/data/ab501fcc5/64f341a71aec4e53881daba6877f48fa/FLAGfdedb21eb [2019-11-20 00:08:24,926 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:08:24,927 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2019-11-20 00:08:24,932 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/data/ab501fcc5/64f341a71aec4e53881daba6877f48fa/FLAGfdedb21eb [2019-11-20 00:08:25,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/data/ab501fcc5/64f341a71aec4e53881daba6877f48fa [2019-11-20 00:08:25,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:08:25,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:08:25,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:08:25,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:08:25,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:08:25,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf3c5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25, skipping insertion in model container [2019-11-20 00:08:25,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,325 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:08:25,337 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:08:25,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:08:25,458 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:08:25,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:08:25,550 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:08:25,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25 WrapperNode [2019-11-20 00:08:25,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:08:25,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:08:25,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:08:25,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:08:25,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:08:25,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:08:25,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:08:25,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:08:25,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... [2019-11-20 00:08:25,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:08:25,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:08:25,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:08:25,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:08:25,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/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 00:08:25,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:08:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:08:25,820 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:08:25,820 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 00:08:25,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:25 BoogieIcfgContainer [2019-11-20 00:08:25,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:08:25,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:08:25,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:08:25,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:08:25,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:08:25" (1/3) ... [2019-11-20 00:08:25,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a429bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:25, skipping insertion in model container [2019-11-20 00:08:25,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:25" (2/3) ... [2019-11-20 00:08:25,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a429bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:25, skipping insertion in model container [2019-11-20 00:08:25,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:25" (3/3) ... [2019-11-20 00:08:25,828 INFO L109 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2019-11-20 00:08:25,836 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:08:25,842 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-20 00:08:25,851 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-20 00:08:25,870 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:08:25,871 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:08:25,871 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:08:25,871 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:08:25,871 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:08:25,871 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:08:25,872 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:08:25,872 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:08:25,885 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-11-20 00:08:25,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 00:08:25,890 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:08:25,891 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 00:08:25,892 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.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 00:08:25,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:08:25,897 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2019-11-20 00:08:25,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:08:25,905 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526430114] [2019-11-20 00:08:25,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:08:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:08:26,025 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 00:08:26,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526430114] [2019-11-20 00:08:26,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:08:26,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 00:08:26,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503992201] [2019-11-20 00:08:26,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 00:08:26,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:08:26,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:08:26,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:08:26,041 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2019-11-20 00:08:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:08:26,126 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2019-11-20 00:08:26,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:08:26,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-20 00:08:26,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:08:26,135 INFO L225 Difference]: With dead ends: 55 [2019-11-20 00:08:26,136 INFO L226 Difference]: Without dead ends: 41 [2019-11-20 00:08:26,138 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 00:08:26,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-20 00:08:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2019-11-20 00:08:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 00:08:26,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2019-11-20 00:08:26,165 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 5 [2019-11-20 00:08:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:08:26,166 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-11-20 00:08:26,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 00:08:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2019-11-20 00:08:26,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 00:08:26,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:08:26,166 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 00:08:26,167 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.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 00:08:26,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:08:26,167 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2019-11-20 00:08:26,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:08:26,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125982219] [2019-11-20 00:08:26,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:08:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:08:26,189 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 00:08:26,190 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125982219] [2019-11-20 00:08:26,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:08:26,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 00:08:26,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528753926] [2019-11-20 00:08:26,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 00:08:26,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:08:26,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:08:26,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:08:26,192 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 3 states. [2019-11-20 00:08:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:08:26,254 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2019-11-20 00:08:26,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:08:26,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-20 00:08:26,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:08:26,256 INFO L225 Difference]: With dead ends: 50 [2019-11-20 00:08:26,256 INFO L226 Difference]: Without dead ends: 48 [2019-11-20 00:08:26,257 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 00:08:26,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-20 00:08:26,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2019-11-20 00:08:26,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 00:08:26,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2019-11-20 00:08:26,264 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 5 [2019-11-20 00:08:26,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:08:26,264 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2019-11-20 00:08:26,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 00:08:26,264 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2019-11-20 00:08:26,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 00:08:26,265 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:08:26,265 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 00:08:26,265 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.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 00:08:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:08:26,265 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2019-11-20 00:08:26,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:08:26,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637118271] [2019-11-20 00:08:26,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:08:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:08:26,302 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 00:08:26,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637118271] [2019-11-20 00:08:26,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:08:26,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:08:26,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344452675] [2019-11-20 00:08:26,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 00:08:26,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:08:26,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:08:26,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:08:26,304 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 3 states. [2019-11-20 00:08:26,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:08:26,343 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2019-11-20 00:08:26,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:08:26,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 00:08:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:08:26,344 INFO L225 Difference]: With dead ends: 39 [2019-11-20 00:08:26,344 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 00:08:26,345 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 00:08:26,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 00:08:26,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-20 00:08:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-20 00:08:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2019-11-20 00:08:26,350 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 6 [2019-11-20 00:08:26,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:08:26,350 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2019-11-20 00:08:26,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 00:08:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2019-11-20 00:08:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 00:08:26,351 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:08:26,351 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 00:08:26,351 INFO L410 AbstractCegarLoop]: === Iteration 4 === [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.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 00:08:26,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:08:26,352 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2019-11-20 00:08:26,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:08:26,352 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798670214] [2019-11-20 00:08:26,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:08:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:08:26,381 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 00:08:26,382 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798670214] [2019-11-20 00:08:26,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:08:26,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:08:26,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656050897] [2019-11-20 00:08:26,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 00:08:26,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:08:26,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:08:26,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:08:26,383 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 3 states. [2019-11-20 00:08:26,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:08:26,409 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2019-11-20 00:08:26,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:08:26,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 00:08:26,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:08:26,410 INFO L225 Difference]: With dead ends: 37 [2019-11-20 00:08:26,410 INFO L226 Difference]: Without dead ends: 35 [2019-11-20 00:08:26,411 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 00:08:26,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-20 00:08:26,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-20 00:08:26,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 00:08:26,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2019-11-20 00:08:26,416 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 6 [2019-11-20 00:08:26,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:08:26,416 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2019-11-20 00:08:26,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 00:08:26,417 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2019-11-20 00:08:26,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 00:08:26,417 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:08:26,418 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:08:26,418 INFO L410 AbstractCegarLoop]: === Iteration 5 === [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.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 00:08:26,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:08:26,418 INFO L82 PathProgramCache]: Analyzing trace with hash 149003441, now seen corresponding path program 1 times [2019-11-20 00:08:26,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:08:26,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592332826] [2019-11-20 00:08:26,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:08:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:08:26,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:08:26,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592332826] [2019-11-20 00:08:26,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:08:26,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:08:26,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997997469] [2019-11-20 00:08:26,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 00:08:26,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:08:26,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 00:08:26,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 00:08:26,455 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand 4 states. [2019-11-20 00:08:26,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:08:26,503 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-20 00:08:26,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:08:26,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 00:08:26,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:08:26,504 INFO L225 Difference]: With dead ends: 35 [2019-11-20 00:08:26,504 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 00:08:26,504 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:08:26,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 00:08:26,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 00:08:26,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 00:08:26,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 00:08:26,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-20 00:08:26,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:08:26,505 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:08:26,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 00:08:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:08:26,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:08:26,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 00:08:26,525 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2019-11-20 00:08:26,525 INFO L444 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2019-11-20 00:08:26,525 INFO L444 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-11-20 00:08:26,526 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2019-11-20 00:08:26,526 INFO L444 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2019-11-20 00:08:26,526 INFO L444 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2019-11-20 00:08:26,526 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-20 00:08:26,526 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 00:08:26,526 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2019-11-20 00:08:26,526 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 00:08:26,527 INFO L444 ceAbstractionStarter]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2019-11-20 00:08:26,527 INFO L447 ceAbstractionStarter]: At program point L41(lines 19 42) the Hoare annotation is: true [2019-11-20 00:08:26,527 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-20 00:08:26,527 INFO L444 ceAbstractionStarter]: For program point L33(lines 33 37) no Hoare annotation was computed. [2019-11-20 00:08:26,527 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 00:08:26,527 INFO L444 ceAbstractionStarter]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2019-11-20 00:08:26,527 INFO L444 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-11-20 00:08:26,528 INFO L444 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2019-11-20 00:08:26,528 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2019-11-20 00:08:26,528 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 39) no Hoare annotation was computed. [2019-11-20 00:08:26,528 INFO L440 ceAbstractionStarter]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~x~0 2147483648)) [2019-11-20 00:08:26,528 INFO L444 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-20 00:08:26,528 INFO L444 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2019-11-20 00:08:26,528 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2019-11-20 00:08:26,529 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-11-20 00:08:26,529 INFO L444 ceAbstractionStarter]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2019-11-20 00:08:26,529 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2019-11-20 00:08:26,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:08:26 BoogieIcfgContainer [2019-11-20 00:08:26,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:08:26,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:08:26,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:08:26,542 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:08:26,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:25" (3/4) ... [2019-11-20 00:08:26,547 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 00:08:26,559 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 00:08:26,559 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 00:08:26,639 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a1845c43-c705-46ee-9554-bc91e7257e62/bin/uautomizer/witness.graphml [2019-11-20 00:08:26,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:08:26,641 INFO L168 Benchmark]: Toolchain (without parser) took 1326.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -112.9 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:26,641 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:08:26,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:26,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.30 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:26,646 INFO L168 Benchmark]: Boogie Preprocessor took 14.87 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:26,647 INFO L168 Benchmark]: RCFGBuilder took 230.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:26,647 INFO L168 Benchmark]: TraceAbstraction took 719.39 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: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:26,647 INFO L168 Benchmark]: Witness Printer took 97.45 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:26,651 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.30 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.87 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 230.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 719.39 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: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. * Witness Printer took 97.45 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 8 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 85 SDslu, 23 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 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 correct! Received shutdown request...