./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/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 f1df70d37f8afdd882c0c58eaed03ed11e314407 .............................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-01 23:30:12,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 23:30:12,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 23:30:12,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 23:30:12,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 23:30:12,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 23:30:12,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 23:30:12,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 23:30:12,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 23:30:12,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 23:30:12,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 23:30:12,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 23:30:12,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 23:30:12,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 23:30:12,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 23:30:12,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 23:30:12,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 23:30:12,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 23:30:12,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 23:30:12,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 23:30:12,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 23:30:12,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 23:30:12,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 23:30:12,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 23:30:12,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 23:30:12,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 23:30:12,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 23:30:12,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 23:30:12,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 23:30:12,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 23:30:12,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 23:30:12,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 23:30:12,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 23:30:12,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 23:30:12,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 23:30:12,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 23:30:12,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 23:30:12,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 23:30:12,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 23:30:12,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 23:30:12,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 23:30:12,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-12-01 23:30:12,847 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 23:30:12,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 23:30:12,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 23:30:12,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 23:30:12,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 23:30:12,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 23:30:12,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 23:30:12,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 23:30:12,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 23:30:12,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 23:30:12,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 23:30:12,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 23:30:12,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 23:30:12,850 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-01 23:30:12,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 23:30:12,850 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 23:30:12,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 23:30:12,850 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 23:30:12,850 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 23:30:12,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 23:30:12,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 23:30:12,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 23:30:12,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 23:30:12,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 23:30:12,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 23:30:12,851 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 23:30:12,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 23:30:12,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 23:30:12,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/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 -> f1df70d37f8afdd882c0c58eaed03ed11e314407 [2019-12-01 23:30:12,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 23:30:12,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 23:30:12,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 23:30:12,962 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 23:30:12,963 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 23:30:12,963 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c [2019-12-01 23:30:13,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/data/889f1ad44/80141caa81f84fdeaab0ad2ac5210c4f/FLAG8e1a73ef0 [2019-12-01 23:30:13,303 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 23:30:13,303 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c [2019-12-01 23:30:13,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/data/889f1ad44/80141caa81f84fdeaab0ad2ac5210c4f/FLAG8e1a73ef0 [2019-12-01 23:30:13,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/data/889f1ad44/80141caa81f84fdeaab0ad2ac5210c4f [2019-12-01 23:30:13,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 23:30:13,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 23:30:13,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 23:30:13,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 23:30:13,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 23:30:13,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431cfabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13, skipping insertion in model container [2019-12-01 23:30:13,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 23:30:13,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 23:30:13,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 23:30:13,456 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 23:30:13,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 23:30:13,511 INFO L208 MainTranslator]: Completed translation [2019-12-01 23:30:13,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13 WrapperNode [2019-12-01 23:30:13,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 23:30:13,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 23:30:13,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 23:30:13,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 23:30:13,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 23:30:13,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 23:30:13,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 23:30:13,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 23:30:13,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 23:30:13,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 23:30:13,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 23:30:13,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 23:30:13,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:30:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/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 [2019-12-01 23:30:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-12-01 23:30:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-12-01 23:30:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-12-01 23:30:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-12-01 23:30:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 23:30:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 23:30:13,713 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 23:30:13,713 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-01 23:30:13,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:30:13 BoogieIcfgContainer [2019-12-01 23:30:13,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 23:30:13,715 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 23:30:13,715 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 23:30:13,725 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 23:30:13,725 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:30:13" (1/1) ... [2019-12-01 23:30:13,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 23:30:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:30:13,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2019-12-01 23:30:13,759 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-12-01 23:30:13,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 23:30:13,763 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:30:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:30:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:30:13,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:30:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2019-12-01 23:30:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-12-01 23:30:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 23:30:13,951 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:30:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:30:13,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:30:14,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:30:14,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2019-12-01 23:30:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-12-01 23:30:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 23:30:14,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:30:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:30:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:30:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:30:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:30:14,198 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2019-12-01 23:30:14,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 11:30:14 ImpRootNode [2019-12-01 23:30:14,224 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 23:30:14,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 23:30:14,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 23:30:14,225 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 23:30:14,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:30:13" (3/4) ... [2019-12-01 23:30:14,227 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 23:30:14,265 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1c506a5a-ba28-481c-91f9-869d923bebea/bin/ukojak/witness.graphml [2019-12-01 23:30:14,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 23:30:14,267 INFO L168 Benchmark]: Toolchain (without parser) took 947.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -78.9 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2019-12-01 23:30:14,267 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 23:30:14,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-01 23:30:14,268 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 23:30:14,269 INFO L168 Benchmark]: Boogie Preprocessor took 11.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-01 23:30:14,269 INFO L168 Benchmark]: RCFGBuilder took 168.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-12-01 23:30:14,270 INFO L168 Benchmark]: CodeCheck took 509.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-12-01 23:30:14,270 INFO L168 Benchmark]: Witness Printer took 40.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 23:30:14,273 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 24 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 18 SDslu, 0 SDs, 0 SdLazy, 94 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L30] int i = __VERIFIER_nondet_int(); [L31] int x = __VERIFIER_nondet_int(); [L32] COND TRUE i >= 0 && x >= 0 [L33] CALL f(i,x) VAL [\old(i)=2147483647, \old(x)=1] [L18] COND FALSE !(i==0) VAL [\old(i)=2147483647, \old(x)=1, i=2147483647, x=1] [L21] EXPR i-1 VAL [\old(i)=2147483647, \old(x)=1, i=2147483647, x=1] [L21] CALL g(i-1,x,i) VAL [\old(a)=2147483646, \old(b)=1, \old(c)=2147483647] [L26] b+c VAL [\old(a)=2147483646, \old(b)=1, \old(c)=2147483647, a=2147483646, b=1, c=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 168.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * CodeCheck took 509.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * Witness Printer took 40.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...