./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/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 64bit --witnessprinter.graph.data.programhash c49ca63b076bdfdfd4da2b39429bac3c0da8332d .............................................................................................................................................................................................................................................. 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 17:55:10,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:55:10,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:55:10,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:55:10,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:55:10,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:55:10,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:55:10,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:55:10,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:55:10,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:55:10,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:55:10,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:55:10,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:55:10,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:55:10,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:55:10,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:55:10,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:55:10,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:55:10,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:55:10,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:55:10,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:55:10,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:55:10,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:55:10,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:55:10,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:55:10,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:55:10,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:55:10,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:55:10,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:55:10,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:55:10,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:55:10,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:55:10,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:55:10,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:55:10,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:55:10,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:55:10,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:55:10,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:55:10,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:55:10,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:55:10,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:55:10,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 17:55:10,922 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:55:10,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:55:10,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:55:10,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:55:10,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:55:10,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:55:10,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:55:10,927 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:55:10,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:55:10,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:55:10,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:55:10,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:55:10,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:55:10,929 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 17:55:10,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:55:10,929 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:55:10,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:55:10,930 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:55:10,930 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:55:10,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:55:10,931 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:55:10,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:55:10,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:55:10,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:55:10,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:55:10,932 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:55:10,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:55:10,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:55:10,933 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_b7f31c75-c4b8-48e3-967e-125bdeabaa01/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c49ca63b076bdfdfd4da2b39429bac3c0da8332d [2020-12-01 17:55:11,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:55:11,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:55:11,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:55:11,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:55:11,257 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:55:11,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2020-12-01 17:55:11,339 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/data/78c1902d9/cef4dbf6ec024da5adda306f1ed41224/FLAG10fe90fc7 [2020-12-01 17:55:11,820 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:55:11,820 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2020-12-01 17:55:11,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/data/78c1902d9/cef4dbf6ec024da5adda306f1ed41224/FLAG10fe90fc7 [2020-12-01 17:55:12,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/data/78c1902d9/cef4dbf6ec024da5adda306f1ed41224 [2020-12-01 17:55:12,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:55:12,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:55:12,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:55:12,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:55:12,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:55:12,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f860682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12, skipping insertion in model container [2020-12-01 17:55:12,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:55:12,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:55:12,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:55:12,392 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:55:12,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:55:12,438 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:55:12,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12 WrapperNode [2020-12-01 17:55:12,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:55:12,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:55:12,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:55:12,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:55:12,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:55:12,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:55:12,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:55:12,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:55:12,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:55:12,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:55:12,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:55:12,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:55:12,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:55:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/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 17:55:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:55:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:55:12,735 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:55:12,735 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:55:12,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:55:12 BoogieIcfgContainer [2020-12-01 17:55:12,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:55:12,739 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:55:12,739 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:55:12,747 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:55:12,748 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:55:12" (1/1) ... [2020-12-01 17:55:12,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:55:12,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:55:12,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-12-01 17:55:12,788 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-01 17:55:12,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:55:12,791 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:55:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:55:12,933 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 17:55:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:55:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-12-01 17:55:12,989 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-01 17:55:12,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:55:12,990 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:55:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:55:13,068 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 17:55:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:55:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-12-01 17:55:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-12-01 17:55:13,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:55:13,408 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:55:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:55:13,461 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 17:55:13,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:55:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2020-12-01 17:55:13,688 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2020-12-01 17:55:13,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:55:13,688 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:55:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:55:13,757 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 17:55:13,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:55:13,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2020-12-01 17:55:13,960 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2020-12-01 17:55:13,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:55:13,961 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:55:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:55:13,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:55:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:55:14,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:55:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:55:14,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:55:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:55:14,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:55:14,078 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-12-01 17:55:14,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:55:14 ImpRootNode [2020-12-01 17:55:14,095 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:55:14,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:55:14,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:55:14,096 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:55:14,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:55:12" (3/4) ... [2020-12-01 17:55:14,099 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:55:14,135 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b7f31c75-c4b8-48e3-967e-125bdeabaa01/bin/ukojak/witness.graphml [2020-12-01 17:55:14,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:55:14,138 INFO L168 Benchmark]: Toolchain (without parser) took 1920.67 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 65.9 MB in the beginning and 85.9 MB in the end (delta: -20.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:55:14,138 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:55:14,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.54 ms. Allocated memory is still 94.4 MB. Free memory was 65.7 MB in the beginning and 72.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:55:14,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.12 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 70.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:55:14,141 INFO L168 Benchmark]: Boogie Preprocessor took 17.57 ms. Allocated memory is still 94.4 MB. Free memory was 70.9 MB in the beginning and 69.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:55:14,142 INFO L168 Benchmark]: RCFGBuilder took 250.12 ms. Allocated memory is still 94.4 MB. Free memory was 69.9 MB in the beginning and 59.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:55:14,143 INFO L168 Benchmark]: CodeCheck took 1356.79 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 59.0 MB in the beginning and 88.0 MB in the end (delta: -29.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:55:14,143 INFO L168 Benchmark]: Witness Printer took 39.55 ms. Allocated memory is still 113.2 MB. Free memory was 88.0 MB in the beginning and 85.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:55:14,147 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 1 procedures, 16 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 62 SDslu, 116 SDs, 0 SdLazy, 272 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 [L22] old_x + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 220.54 ms. Allocated memory is still 94.4 MB. Free memory was 65.7 MB in the beginning and 72.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.12 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 70.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.57 ms. Allocated memory is still 94.4 MB. Free memory was 70.9 MB in the beginning and 69.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 250.12 ms. Allocated memory is still 94.4 MB. Free memory was 69.9 MB in the beginning and 59.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1356.79 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 59.0 MB in the beginning and 88.0 MB in the end (delta: -29.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 39.55 ms. Allocated memory is still 113.2 MB. Free memory was 88.0 MB in the beginning and 85.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...