./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o5-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80e52f65dba85ecdcfa89dcdd215c6def71ea4a3 .............................................................................................................................................................................................................................. 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 0.2.0-69874e2 [2020-12-01 18:18:26,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:18:26,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:18:26,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:18:26,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:18:26,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:18:26,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:18:26,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:18:26,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:18:26,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:18:26,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:18:26,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:18:26,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:18:26,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:18:26,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:18:26,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:18:26,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:18:26,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:18:26,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:18:26,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:18:26,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:18:26,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:18:26,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:18:26,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:18:26,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:18:26,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:18:26,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:18:26,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:18:26,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:18:26,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:18:26,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:18:26,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:18:26,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:18:26,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:18:26,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:18:26,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:18:26,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:18:26,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:18:26,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:18:26,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:18:26,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:18:26,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-01 18:18:26,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:18:26,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:18:26,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:18:26,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:18:26,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:18:26,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:18:26,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:18:26,725 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:18:26,725 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:18:26,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:18:26,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:18:26,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:18:26,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:18:26,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:18:26,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:18:26,729 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 18:18:26,729 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:18:26,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:18:26,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:18:26,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:18:26,730 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:18:26,731 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:18:26,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:18:26,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:18:26,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:18:26,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:18:26,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:18:26,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:18:26,733 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:18:26,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:18:26,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:18:26,736 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_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80e52f65dba85ecdcfa89dcdd215c6def71ea4a3 [2020-12-01 18:18:27,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:18:27,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:18:27,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:18:27,237 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:18:27,238 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:18:27,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_b3_o5-1.c [2020-12-01 18:18:27,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/data/21f8d2b20/3112e242722b44729be5ba383a6c559a/FLAGef482d892 [2020-12-01 18:18:28,088 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:18:28,090 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/sv-benchmarks/c/recursive-simple/id_b3_o5-1.c [2020-12-01 18:18:28,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/data/21f8d2b20/3112e242722b44729be5ba383a6c559a/FLAGef482d892 [2020-12-01 18:18:28,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/data/21f8d2b20/3112e242722b44729be5ba383a6c559a [2020-12-01 18:18:28,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:18:28,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:18:28,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:18:28,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:18:28,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:18:28,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775ef237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28, skipping insertion in model container [2020-12-01 18:18:28,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:18:28,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:18:28,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:18:28,742 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:18:28,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:18:28,806 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:18:28,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28 WrapperNode [2020-12-01 18:18:28,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:18:28,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:18:28,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:18:28,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:18:28,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:18:28,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:18:28,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:18:28,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:18:28,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... [2020-12-01 18:18:28,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:18:28,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:18:28,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:18:28,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:18:28,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2020-12-01 18:18:29,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:18:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:18:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:18:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-01 18:18:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-01 18:18:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:18:29,463 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:18:29,464 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 18:18:29,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:18:29 BoogieIcfgContainer [2020-12-01 18:18:29,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:18:29,469 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:18:29,469 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:18:29,490 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:18:29,491 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:18:29" (1/1) ... [2020-12-01 18:18:29,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:18:29,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:18:29,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2020-12-01 18:18:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-01 18:18:29,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:18:29,615 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:18:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:18:29,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:18:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:18:30,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 23 transitions. [2020-12-01 18:18:30,034 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-12-01 18:18:30,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:18:30,035 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:18:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:18:30,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:18:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:18:30,137 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:18:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:18:30,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:18:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:18:30,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:18:30,280 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-12-01 18:18:30,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:18:30 ImpRootNode [2020-12-01 18:18:30,332 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:18:30,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:18:30,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:18:30,333 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:18:30,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:18:29" (3/4) ... [2020-12-01 18:18:30,337 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:18:30,425 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_13f29828-2917-4ef9-8aa9-7098fc8019ae/bin/ukojak/witness.graphml [2020-12-01 18:18:30,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:18:30,429 INFO L168 Benchmark]: Toolchain (without parser) took 1964.29 ms. Allocated memory is still 107.0 MB. Free memory was 77.9 MB in the beginning and 86.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:30,432 INFO L168 Benchmark]: CDTParser took 1.74 ms. Allocated memory is still 75.5 MB. Free memory was 37.4 MB in the beginning and 37.4 MB in the end (delta: 36.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:18:30,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.55 ms. Allocated memory is still 107.0 MB. Free memory was 77.6 MB in the beginning and 86.3 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:30,437 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.14 ms. Allocated memory is still 107.0 MB. Free memory was 86.3 MB in the beginning and 84.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:18:30,438 INFO L168 Benchmark]: Boogie Preprocessor took 45.60 ms. Allocated memory is still 107.0 MB. Free memory was 84.8 MB in the beginning and 83.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:30,440 INFO L168 Benchmark]: RCFGBuilder took 553.98 ms. Allocated memory is still 107.0 MB. Free memory was 83.7 MB in the beginning and 68.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:30,442 INFO L168 Benchmark]: CodeCheck took 863.01 ms. Allocated memory is still 107.0 MB. Free memory was 68.1 MB in the beginning and 43.4 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:30,445 INFO L168 Benchmark]: Witness Printer took 92.53 ms. Allocated memory is still 107.0 MB. Free memory was 43.4 MB in the beginning and 86.3 MB in the end (delta: -42.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:30,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 17 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int input = __VERIFIER_nondet_int(); [L15] CALL id(input) VAL [\old(x)=-2147483648] [L7] COND FALSE !(x==0) VAL [\old(x)=-2147483648, x=-2147483648] [L8] x-1 VAL [\old(x)=-2147483648, x=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.74 ms. Allocated memory is still 75.5 MB. Free memory was 37.4 MB in the beginning and 37.4 MB in the end (delta: 36.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.55 ms. Allocated memory is still 107.0 MB. Free memory was 77.6 MB in the beginning and 86.3 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.14 ms. Allocated memory is still 107.0 MB. Free memory was 86.3 MB in the beginning and 84.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.60 ms. Allocated memory is still 107.0 MB. Free memory was 84.8 MB in the beginning and 83.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 553.98 ms. Allocated memory is still 107.0 MB. Free memory was 83.7 MB in the beginning and 68.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 863.01 ms. Allocated memory is still 107.0 MB. Free memory was 68.1 MB in the beginning and 43.4 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 92.53 ms. Allocated memory is still 107.0 MB. Free memory was 43.4 MB in the beginning and 86.3 MB in the end (delta: -42.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...