./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/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 ebb74e337af9534aacfcb2a7a413bdbed21e04b2 ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:59:25,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:59:25,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:59:25,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:59:25,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:59:25,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:59:25,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:59:25,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:59:25,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:59:25,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:59:25,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:59:25,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:59:25,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:59:25,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:59:25,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:59:25,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:59:25,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:59:25,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:59:25,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:59:25,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:59:25,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:59:25,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:59:25,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:59:25,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:59:25,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:59:25,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:59:25,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:59:25,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:59:25,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:59:25,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:59:25,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:59:25,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:59:25,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:59:25,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:59:25,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:59:25,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:59:25,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:59:25,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:59:25,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:59:25,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:59:25,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:59:25,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 02:59:25,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:59:25,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:59:25,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:59:25,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:59:25,532 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:59:25,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:59:25,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:59:25,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:59:25,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:59:25,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:59:25,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:59:25,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:59:25,535 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 02:59:25,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:59:25,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:59:25,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:59:25,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:59:25,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:59:25,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:59:25,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:59:25,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:59:25,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:59:25,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:59:25,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:59:25,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:59:25,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:59:25,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:59:25,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:59:25,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebb74e337af9534aacfcb2a7a413bdbed21e04b2 [2020-11-28 02:59:25,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:59:25,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:59:25,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:59:25,939 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:59:25,940 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:59:25,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2020-11-28 02:59:26,033 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/data/2126b2ad2/8b73976e345e451fb456a0bd13e30a4d/FLAGdf8076138 [2020-11-28 02:59:26,637 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:59:26,638 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2020-11-28 02:59:26,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/data/2126b2ad2/8b73976e345e451fb456a0bd13e30a4d/FLAGdf8076138 [2020-11-28 02:59:26,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/data/2126b2ad2/8b73976e345e451fb456a0bd13e30a4d [2020-11-28 02:59:26,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:59:26,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:59:27,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:27,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:59:27,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:59:27,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:26" (1/1) ... [2020-11-28 02:59:27,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ef1551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27, skipping insertion in model container [2020-11-28 02:59:27,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:26" (1/1) ... [2020-11-28 02:59:27,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:59:27,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:59:27,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:27,225 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:59:27,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:27,292 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:59:27,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27 WrapperNode [2020-11-28 02:59:27,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:27,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:27,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:59:27,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:59:27,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... [2020-11-28 02:59:27,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... [2020-11-28 02:59:27,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:27,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:59:27,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:59:27,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:59:27,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... [2020-11-28 02:59:27,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... [2020-11-28 02:59:27,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... [2020-11-28 02:59:27,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... [2020-11-28 02:59:27,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... [2020-11-28 02:59:27,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... [2020-11-28 02:59:27,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... [2020-11-28 02:59:27,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:59:27,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:59:27,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:59:27,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:59:27,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/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 [2020-11-28 02:59:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:59:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:59:27,929 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:59:27,929 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 02:59:27,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:27 BoogieIcfgContainer [2020-11-28 02:59:27,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:59:27,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:59:27,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:59:27,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:59:27,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:26" (1/3) ... [2020-11-28 02:59:27,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf38645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:27, skipping insertion in model container [2020-11-28 02:59:27,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:27" (2/3) ... [2020-11-28 02:59:27,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf38645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:27, skipping insertion in model container [2020-11-28 02:59:27,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:27" (3/3) ... [2020-11-28 02:59:27,945 INFO L111 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex1.c [2020-11-28 02:59:27,959 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:59:27,964 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-28 02:59:27,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-28 02:59:28,026 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:59:28,026 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:59:28,026 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:59:28,027 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:59:28,027 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:59:28,027 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:59:28,027 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:59:28,027 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:59:28,050 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-28 02:59:28,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 02:59:28,057 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:28,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 02:59:28,060 INFO L429 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]=== [2020-11-28 02:59:28,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:28,070 INFO L82 PathProgramCache]: Analyzing trace with hash 963659, now seen corresponding path program 1 times [2020-11-28 02:59:28,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:28,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697006284] [2020-11-28 02:59:28,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:28,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:28,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697006284] [2020-11-28 02:59:28,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:28,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:28,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455499968] [2020-11-28 02:59:28,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:28,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:28,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:28,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:28,367 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2020-11-28 02:59:28,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:28,597 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2020-11-28 02:59:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:59:28,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-28 02:59:28,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:28,610 INFO L225 Difference]: With dead ends: 45 [2020-11-28 02:59:28,610 INFO L226 Difference]: Without dead ends: 31 [2020-11-28 02:59:28,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:59:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-28 02:59:28,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 17. [2020-11-28 02:59:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 02:59:28,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-28 02:59:28,729 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2020-11-28 02:59:28,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:28,731 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-28 02:59:28,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:28,731 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-28 02:59:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 02:59:28,732 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:28,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 02:59:28,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:59:28,735 INFO L429 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]=== [2020-11-28 02:59:28,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:28,739 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-11-28 02:59:28,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:28,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591384474] [2020-11-28 02:59:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:28,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591384474] [2020-11-28 02:59:28,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:28,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:28,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438320693] [2020-11-28 02:59:28,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:28,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:28,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:28,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:28,825 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2020-11-28 02:59:28,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:28,958 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2020-11-28 02:59:28,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:59:28,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-28 02:59:28,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:28,960 INFO L225 Difference]: With dead ends: 31 [2020-11-28 02:59:28,960 INFO L226 Difference]: Without dead ends: 29 [2020-11-28 02:59:28,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:59:28,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-28 02:59:28,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 15. [2020-11-28 02:59:28,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 02:59:28,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-11-28 02:59:28,967 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 4 [2020-11-28 02:59:28,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:28,967 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-11-28 02:59:28,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-11-28 02:59:28,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 02:59:28,968 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:28,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 02:59:28,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:59:28,971 INFO L429 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]=== [2020-11-28 02:59:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:28,973 INFO L82 PathProgramCache]: Analyzing trace with hash 29873486, now seen corresponding path program 1 times [2020-11-28 02:59:28,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:28,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762130733] [2020-11-28 02:59:28,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:29,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762130733] [2020-11-28 02:59:29,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:29,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:29,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337203110] [2020-11-28 02:59:29,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:29,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:29,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:29,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:29,033 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2020-11-28 02:59:29,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:29,093 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-11-28 02:59:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:59:29,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-28 02:59:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:29,095 INFO L225 Difference]: With dead ends: 15 [2020-11-28 02:59:29,095 INFO L226 Difference]: Without dead ends: 13 [2020-11-28 02:59:29,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:59:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-28 02:59:29,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 02:59:29,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 02:59:29,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2020-11-28 02:59:29,100 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2020-11-28 02:59:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:29,100 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2020-11-28 02:59:29,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-28 02:59:29,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 02:59:29,101 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:29,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 02:59:29,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:59:29,102 INFO L429 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]=== [2020-11-28 02:59:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:29,102 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-11-28 02:59:29,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:29,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927037713] [2020-11-28 02:59:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:29,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:29,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927037713] [2020-11-28 02:59:29,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:29,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:29,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238316756] [2020-11-28 02:59:29,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:29,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:29,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:29,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:29,143 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 4 states. [2020-11-28 02:59:29,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:29,188 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2020-11-28 02:59:29,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:59:29,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-28 02:59:29,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:29,189 INFO L225 Difference]: With dead ends: 13 [2020-11-28 02:59:29,189 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:59:29,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:59:29,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:59:29,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:59:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:59:29,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:59:29,191 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-28 02:59:29,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:29,191 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:59:29,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:29,192 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:59:29,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:59:29,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:59:29,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:59:29,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 02:59:29,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:59:29,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 02:59:29,287 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-28 02:59:29,287 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-11-28 02:59:29,287 INFO L274 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-11-28 02:59:29,287 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-28 02:59:29,287 INFO L274 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-11-28 02:59:29,287 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-11-28 02:59:29,288 INFO L274 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-11-28 02:59:29,288 INFO L274 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-11-28 02:59:29,288 INFO L274 CegarLoopResult]: For program point L19-3(line 19) no Hoare annotation was computed. [2020-11-28 02:59:29,288 INFO L274 CegarLoopResult]: For program point L17-2(lines 17 23) no Hoare annotation was computed. [2020-11-28 02:59:29,289 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-28 02:59:29,290 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 02:59:29,290 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 02:59:29,290 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:59:29,290 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-28 02:59:29,290 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:59:29,291 INFO L270 CegarLoopResult]: At program point L24(lines 13 25) the Hoare annotation is: (<= ULTIMATE.start_main_~q~0 2147483647) [2020-11-28 02:59:29,291 INFO L274 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-11-28 02:59:29,291 INFO L270 CegarLoopResult]: At program point L18-2(lines 17 23) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648)) (<= ULTIMATE.start_main_~q~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-28 02:59:29,291 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-28 02:59:29,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:59:29 BoogieIcfgContainer [2020-11-28 02:59:29,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:59:29,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:59:29,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:59:29,311 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:59:29,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:27" (3/4) ... [2020-11-28 02:59:29,316 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:59:29,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 02:59:29,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 02:59:29,377 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9bfde4c5-b47d-4ade-8808-d3429a625f91/bin/uautomizer/witness.graphml [2020-11-28 02:59:29,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:59:29,383 INFO L168 Benchmark]: Toolchain (without parser) took 2379.98 ms. Allocated memory is still 113.2 MB. Free memory was 85.5 MB in the beginning and 57.7 MB in the end (delta: 27.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:29,384 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 77.6 MB. Free memory was 40.3 MB in the beginning and 40.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:29,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.27 ms. Allocated memory is still 113.2 MB. Free memory was 85.5 MB in the beginning and 92.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:29,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.44 ms. Allocated memory is still 113.2 MB. Free memory was 92.2 MB in the beginning and 90.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:29,386 INFO L168 Benchmark]: Boogie Preprocessor took 20.51 ms. Allocated memory is still 113.2 MB. Free memory was 90.9 MB in the beginning and 90.1 MB in the end (delta: 733.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:29,387 INFO L168 Benchmark]: RCFGBuilder took 557.74 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 80.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:29,387 INFO L168 Benchmark]: TraceAbstraction took 1375.82 ms. Allocated memory is still 113.2 MB. Free memory was 79.6 MB in the beginning and 60.0 MB in the end (delta: 19.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:29,388 INFO L168 Benchmark]: Witness Printer took 66.62 ms. Allocated memory is still 113.2 MB. Free memory was 60.0 MB in the beginning and 57.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:29,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 77.6 MB. Free memory was 40.3 MB in the beginning and 40.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.27 ms. Allocated memory is still 113.2 MB. Free memory was 85.5 MB in the beginning and 92.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.44 ms. Allocated memory is still 113.2 MB. Free memory was 92.2 MB in the beginning and 90.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.51 ms. Allocated memory is still 113.2 MB. Free memory was 90.9 MB in the beginning and 90.1 MB in the end (delta: 733.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 557.74 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 80.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1375.82 ms. Allocated memory is still 113.2 MB. Free memory was 79.6 MB in the beginning and 60.0 MB in the end (delta: 19.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * Witness Printer took 66.62 ms. Allocated memory is still 113.2 MB. Free memory was 60.0 MB in the beginning and 57.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 17]: Loop Invariant Derived loop invariant: (0 <= y + 2147483648 && q <= 2147483647) && y <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: q <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 104 SDslu, 3 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...