./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark28_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark28_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/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 32bit --witnessprinter.graph.data.programhash f686279b87eadaadf5651e7525f6bd2d6d87a448 ......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:15:00,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:00,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:00,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:00,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:00,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:00,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:00,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:00,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:00,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:00,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:00,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:00,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:00,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:00,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:00,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:00,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:00,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:00,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:00,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:00,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:00,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:00,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:00,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:00,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:00,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:00,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:00,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:00,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:00,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:00,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:00,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:00,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:00,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:00,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:00,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:00,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:00,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:00,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:00,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:00,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:00,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:15:00,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:00,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:00,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:00,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:00,705 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:00,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:00,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:15:00,706 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:15:00,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:15:00,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:15:00,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:00,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:15:00,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:15:00,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:15:00,709 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:15:00,709 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:15:00,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:00,710 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:00,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:15:00,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:00,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:00,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:15:00,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:15:00,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:00,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:00,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:15:00,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:15:00,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:15:00,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:15:00,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:15:00,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:00,713 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_55257221-0abd-490e-8b4b-f618587d9cde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f686279b87eadaadf5651e7525f6bd2d6d87a448 [2020-11-28 03:15:00,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:00,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:00,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:00,986 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:00,987 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:00,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark28_linear.i [2020-11-28 03:15:01,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/data/b1f5c67dd/f8ef7db25c99425fb4a7aee83950f42d/FLAG6c63ec464 [2020-11-28 03:15:01,594 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:01,595 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/sv-benchmarks/c/loop-zilu/benchmark28_linear.i [2020-11-28 03:15:01,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/data/b1f5c67dd/f8ef7db25c99425fb4a7aee83950f42d/FLAG6c63ec464 [2020-11-28 03:15:01,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/data/b1f5c67dd/f8ef7db25c99425fb4a7aee83950f42d [2020-11-28 03:15:01,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:01,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:01,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:01,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:01,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:01,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341f0688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01, skipping insertion in model container [2020-11-28 03:15:01,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:02,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:02,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:02,220 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:02,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:02,268 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:02,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02 WrapperNode [2020-11-28 03:15:02,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:02,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:02,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:02,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:02,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... [2020-11-28 03:15:02,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... [2020-11-28 03:15:02,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:02,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:02,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:02,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:02,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... [2020-11-28 03:15:02,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... [2020-11-28 03:15:02,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... [2020-11-28 03:15:02,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... [2020-11-28 03:15:02,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... [2020-11-28 03:15:02,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... [2020-11-28 03:15:02,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... [2020-11-28 03:15:02,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:02,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:02,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:02,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:02,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/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 03:15:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:15:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:02,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:02,967 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:02,968 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:15:02,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:02 BoogieIcfgContainer [2020-11-28 03:15:02,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:02,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:02,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:02,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:02,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:01" (1/3) ... [2020-11-28 03:15:02,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8ee581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:02, skipping insertion in model container [2020-11-28 03:15:02,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:02" (2/3) ... [2020-11-28 03:15:02,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8ee581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:02, skipping insertion in model container [2020-11-28 03:15:02,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:02" (3/3) ... [2020-11-28 03:15:02,981 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark28_linear.i [2020-11-28 03:15:02,993 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:02,998 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-11-28 03:15:03,015 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-11-28 03:15:03,062 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:03,063 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:03,063 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:03,063 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:03,063 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:03,063 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:03,064 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:03,064 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:03,085 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-11-28 03:15:03,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 03:15:03,092 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:03,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 03:15:03,095 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:15:03,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:03,103 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2020-11-28 03:15:03,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:03,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126304841] [2020-11-28 03:15:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:03,228 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:15:03,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159705093] [2020-11-28 03:15:03,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:15:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:03,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:03,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:03,432 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:03,433 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:15:03,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-28 03:15:03,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:03 BoogieIcfgContainer [2020-11-28 03:15:03,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:03,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:03,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:03,678 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:03,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:02" (3/4) ... [2020-11-28 03:15:03,681 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:15:03,729 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_55257221-0abd-490e-8b4b-f618587d9cde/bin/uautomizer/witness.graphml [2020-11-28 03:15:03,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:03,732 INFO L168 Benchmark]: Toolchain (without parser) took 1759.84 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 69.4 MB in the beginning and 99.2 MB in the end (delta: -29.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:03,733 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 7.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:03,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.60 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 74.9 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:03,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.80 ms. Allocated memory is still 96.5 MB. Free memory was 74.9 MB in the beginning and 73.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:03,736 INFO L168 Benchmark]: Boogie Preprocessor took 30.19 ms. Allocated memory is still 96.5 MB. Free memory was 73.3 MB in the beginning and 72.4 MB in the end (delta: 833.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:03,736 INFO L168 Benchmark]: RCFGBuilder took 624.35 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 58.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:03,737 INFO L168 Benchmark]: TraceAbstraction took 701.94 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 57.8 MB in the beginning and 100.5 MB in the end (delta: -42.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:03,738 INFO L168 Benchmark]: Witness Printer took 52.80 ms. Allocated memory is still 123.7 MB. Free memory was 100.5 MB in the beginning and 99.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:03,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 7.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.60 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 74.9 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.80 ms. Allocated memory is still 96.5 MB. Free memory was 74.9 MB in the beginning and 73.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.19 ms. Allocated memory is still 96.5 MB. Free memory was 73.3 MB in the beginning and 72.4 MB in the end (delta: 833.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 624.35 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 58.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 701.94 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 57.8 MB in the beginning and 100.5 MB in the end (delta: -42.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * Witness Printer took 52.80 ms. Allocated memory is still 123.7 MB. Free memory was 100.5 MB in the beginning and 99.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int j = __VERIFIER_nondet_int(); [L22] i * i - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 incorrect! Received shutdown request...