./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_nondet_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_nondet_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/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 de94f0c7b8482738d507216e71ac3b33c5f9a9e3 .............................................................................................................................................................................................................................. 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 0.1.23-1dbac8b [2018-11-10 04:52:59,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:52:59,782 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:52:59,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:52:59,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:52:59,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:52:59,790 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:52:59,791 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:52:59,792 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:52:59,793 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:52:59,794 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:52:59,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:52:59,795 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:52:59,795 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:52:59,796 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:52:59,796 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:52:59,797 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:52:59,798 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:52:59,799 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:52:59,800 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:52:59,801 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:52:59,802 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:52:59,804 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:52:59,804 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:52:59,804 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:52:59,805 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:52:59,805 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:52:59,806 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:52:59,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:52:59,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:52:59,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:52:59,808 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:52:59,808 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:52:59,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:52:59,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:52:59,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:52:59,810 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-10 04:52:59,817 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:52:59,818 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:52:59,818 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:52:59,818 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 04:52:59,819 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:52:59,819 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:52:59,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:52:59,819 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 04:52:59,819 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:52:59,819 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:52:59,819 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:52:59,819 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:52:59,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:52:59,820 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 04:52:59,820 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:52:59,820 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:52:59,820 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 04:52:59,820 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 04:52:59,820 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:52:59,820 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:52:59,820 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 04:52:59,820 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:52:59,820 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:52:59,821 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:52:59,821 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 04:52:59,821 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:52:59,821 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:52:59,821 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/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 -> de94f0c7b8482738d507216e71ac3b33c5f9a9e3 [2018-11-10 04:52:59,847 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:52:59,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:52:59,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:52:59,861 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:52:59,861 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:52:59,862 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted/Cairo_nondet_false-no-overflow.c [2018-11-10 04:52:59,908 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/data/25823b408/d78da8cdc972470cb3fa9b46943fc7d6/FLAG457608c67 [2018-11-10 04:53:00,248 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:53:00,248 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/sv-benchmarks/c/termination-crafted/Cairo_nondet_false-no-overflow.c [2018-11-10 04:53:00,252 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/data/25823b408/d78da8cdc972470cb3fa9b46943fc7d6/FLAG457608c67 [2018-11-10 04:53:00,264 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/data/25823b408/d78da8cdc972470cb3fa9b46943fc7d6 [2018-11-10 04:53:00,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:53:00,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:53:00,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:53:00,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:53:00,273 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:53:00,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@837b16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00, skipping insertion in model container [2018-11-10 04:53:00,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:53:00,302 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:53:00,422 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:53:00,424 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:53:00,434 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:53:00,444 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:53:00,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00 WrapperNode [2018-11-10 04:53:00,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:53:00,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:53:00,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:53:00,445 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:53:00,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:53:00,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:53:00,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:53:00,474 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:53:00,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:53:00,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:53:00,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:53:00,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:53:00,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/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 [2018-11-10 04:53:00,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:53:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:53:00,678 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:53:00,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:53:00 BoogieIcfgContainer [2018-11-10 04:53:00,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:53:00,679 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 04:53:00,679 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 04:53:00,686 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 04:53:00,686 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:53:00" (1/1) ... [2018-11-10 04:53:00,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:53:00,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:53:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2018-11-10 04:53:00,733 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-11-10 04:53:00,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 04:53:00,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:53:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:53:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:53:00,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:53:00,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-11-10 04:53:00,890 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-11-10 04:53:00,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 04:53:00,891 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:53:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:53:00,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:53:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:53:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-11-10 04:53:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-10 04:53:01,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 04:53:01,153 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:53:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:53:01,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:53:01,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:53:01,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-11-10 04:53:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-11-10 04:53:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 04:53:01,204 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:53:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:53:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:53:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:53:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:53:01,245 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2018-11-10 04:53:01,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 04:53:01 ImpRootNode [2018-11-10 04:53:01,265 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 04:53:01,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:53:01,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:53:01,265 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:53:01,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:53:00" (3/4) ... [2018-11-10 04:53:01,268 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 04:53:01,301 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d2f279b8-da10-494f-af0a-b5fa3bd4cbd3/bin-2019/ukojak/witness.graphml [2018-11-10 04:53:01,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:53:01,302 INFO L168 Benchmark]: Toolchain (without parser) took 1035.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -114.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:53:01,303 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:53:01,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.07 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:53:01,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.37 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:53:01,304 INFO L168 Benchmark]: Boogie Preprocessor took 13.29 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:53:01,305 INFO L168 Benchmark]: RCFGBuilder took 191.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:53:01,305 INFO L168 Benchmark]: CodeCheck took 586.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. [2018-11-10 04:53:01,306 INFO L168 Benchmark]: Witness Printer took 36.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:53:01,308 INFO L336 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, 13 locations, 2 error locations. UNSAFE Result, 0.5s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 56 SDslu, 24 SDs, 0 SdLazy, 176 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 138 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int x; [L14] x = __VERIFIER_nondet_int() [L15] COND TRUE x > __VERIFIER_nondet_int() [L16] COND TRUE x != 0 [L17] EXPR x - 1 [L17] x = x - 1 [L16] COND TRUE x != 0 [L17] x - 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.07 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.37 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.29 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * CodeCheck took 586.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. * Witness Printer took 36.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...