./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI --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 1cbace5580915338bbd4f6efe69f1fa46dac7d6ce729fb2189890b13c893a5f0 ...................................................................................................................................................................................................................... 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 0.2.1-dev-b2eff8b [2021-10-29 04:05:51,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:05:51,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:05:51,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:05:51,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:05:51,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:05:51,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:05:51,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:05:51,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:05:51,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:05:51,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:05:51,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:05:51,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:05:51,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:05:51,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:05:51,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:05:51,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:05:51,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:05:51,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:05:51,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:05:51,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:05:51,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:05:51,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:05:51,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:05:51,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:05:51,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:05:51,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:05:51,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:05:51,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:05:51,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:05:51,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:05:51,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:05:51,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:05:51,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:05:51,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:05:51,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:05:51,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:05:51,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:05:51,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:05:51,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:05:51,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:05:51,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-29 04:05:52,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:05:52,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:05:52,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:05:52,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:05:52,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:05:52,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:05:52,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:05:52,011 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:05:52,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:05:52,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:05:52,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:05:52,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:05:52,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:05:52,022 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 04:05:52,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:05:52,023 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:05:52,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:05:52,023 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:05:52,023 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:05:52,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:05:52,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:05:52,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:05:52,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:05:52,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:05:52,026 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:05:52,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:05:52,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:05:52,027 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_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cbace5580915338bbd4f6efe69f1fa46dac7d6ce729fb2189890b13c893a5f0 [2021-10-29 04:05:52,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:05:52,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:05:52,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:05:52,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:05:52,435 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:05:52,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c [2021-10-29 04:05:52,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/data/b2cc10d41/185310d1428643c5b4eaf3d8033de8cc/FLAG026e09ef0 [2021-10-29 04:05:53,075 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:05:53,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c [2021-10-29 04:05:53,083 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/data/b2cc10d41/185310d1428643c5b4eaf3d8033de8cc/FLAG026e09ef0 [2021-10-29 04:05:53,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/data/b2cc10d41/185310d1428643c5b4eaf3d8033de8cc [2021-10-29 04:05:53,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:05:53,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:05:53,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:05:53,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:05:53,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:05:53,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f59732b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53, skipping insertion in model container [2021-10-29 04:05:53,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:05:53,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:05:53,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:05:53,712 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:05:53,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:05:53,746 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:05:53,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53 WrapperNode [2021-10-29 04:05:53,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:05:53,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:05:53,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:05:53,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:05:53,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:05:53,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:05:53,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:05:53,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:05:53,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:05:53,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:05:53,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:05:53,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:05:53,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:05:53" (1/1) ... [2021-10-29 04:05:53,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:05:53,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:05:53,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:05:53,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:05:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:05:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:05:54,175 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:05:54,175 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 04:05:54,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:05:54 BoogieIcfgContainer [2021-10-29 04:05:54,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:05:54,180 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:05:54,180 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:05:54,204 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:05:54,205 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:05:54" (1/1) ... [2021-10-29 04:05:54,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:05:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:05:54,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2021-10-29 04:05:54,268 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-10-29 04:05:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:05:54,271 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:05:54,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:05:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:05:54,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:05:54,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:05:54,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-10-29 04:05:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-10-29 04:05:54,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:05:54,591 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:05:54,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:05:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:05:54,627 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:05:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:05:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:05:54,664 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:05:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:05:54,678 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-10-29 04:05:54,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:05:54 ImpRootNode [2021-10-29 04:05:54,699 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:05:54,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:05:54,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:05:54,700 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:05:54,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:05:54" (3/4) ... [2021-10-29 04:05:54,703 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:05:54,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:05:54,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:05:54,816 INFO L168 Benchmark]: Toolchain (without parser) took 1389.26 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 42.2 MB in the beginning and 76.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:05:54,818 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 77.6 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:05:54,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.45 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 42.0 MB in the beginning and 76.3 MB in the end (delta: -34.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:05:54,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.59 ms. Allocated memory is still 98.6 MB. Free memory was 76.1 MB in the beginning and 74.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:05:54,821 INFO L168 Benchmark]: Boogie Preprocessor took 36.82 ms. Allocated memory is still 98.6 MB. Free memory was 74.8 MB in the beginning and 74.0 MB in the end (delta: 881.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:05:54,823 INFO L168 Benchmark]: RCFGBuilder took 347.63 ms. Allocated memory is still 98.6 MB. Free memory was 74.0 MB in the beginning and 65.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:05:54,824 INFO L168 Benchmark]: CodeCheck took 519.24 ms. Allocated memory is still 98.6 MB. Free memory was 65.4 MB in the beginning and 51.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:05:54,825 INFO L168 Benchmark]: Witness Printer took 114.33 ms. Allocated memory is still 98.6 MB. Free memory was 51.7 MB in the beginning and 76.1 MB in the end (delta: -24.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:05:54,830 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 9 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, oldx; [L24] x = __VERIFIER_nondet_int() [L25] oldx = __VERIFIER_nondet_int() [L26] x > 1 && -2*x == oldx [L26] -2*x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 77.6 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.45 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 42.0 MB in the beginning and 76.3 MB in the end (delta: -34.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.59 ms. Allocated memory is still 98.6 MB. Free memory was 76.1 MB in the beginning and 74.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.82 ms. Allocated memory is still 98.6 MB. Free memory was 74.8 MB in the beginning and 74.0 MB in the end (delta: 881.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 347.63 ms. Allocated memory is still 98.6 MB. Free memory was 74.0 MB in the beginning and 65.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 519.24 ms. Allocated memory is still 98.6 MB. Free memory was 65.4 MB in the beginning and 51.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 114.33 ms. Allocated memory is still 98.6 MB. Free memory was 51.7 MB in the beginning and 76.1 MB in the end (delta: -24.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:05:54,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b8003c-5139-46e1-920b-279e1de41a02/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...