./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_nondet.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_nondet.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e --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 7291a806fc1bc00c479528361766aa99fd25186e73036697f4b6a2299ee60d16 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 23:08:09,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:08:09,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:08:09,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:08:09,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:08:09,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:08:09,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:08:09,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:08:09,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:08:09,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:08:09,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:08:09,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:08:09,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:08:09,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:08:09,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:08:09,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:08:09,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:08:09,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:08:09,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:08:09,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:08:09,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:08:10,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:08:10,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:08:10,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:08:10,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:08:10,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:08:10,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:08:10,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:08:10,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:08:10,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:08:10,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:08:10,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:08:10,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:08:10,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:08:10,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:08:10,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:08:10,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:08:10,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:08:10,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:08:10,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:08:10,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:08:10,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-13 23:08:10,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:08:10,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:08:10,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:08:10,050 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 23:08:10,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:08:10,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:08:10,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:08:10,052 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 23:08:10,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:08:10,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:08:10,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:08:10,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:08:10,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:08:10,060 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 23:08:10,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:08:10,060 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:08:10,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:08:10,062 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:08:10,062 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:08:10,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:08:10,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:08:10,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:08:10,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:08:10,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:08:10,064 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:08:10,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:08:10,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:08:10,065 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_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7291a806fc1bc00c479528361766aa99fd25186e73036697f4b6a2299ee60d16 [2021-11-13 23:08:10,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:08:10,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:08:10,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:08:10,405 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:08:10,406 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:08:10,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/termination-crafted/Cairo_nondet.c [2021-11-13 23:08:10,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/data/129d1ee77/636faea04e7b4e29bbe8411aa76b4b40/FLAG2b49dcb32 [2021-11-13 23:08:10,894 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:08:10,894 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/sv-benchmarks/c/termination-crafted/Cairo_nondet.c [2021-11-13 23:08:10,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/data/129d1ee77/636faea04e7b4e29bbe8411aa76b4b40/FLAG2b49dcb32 [2021-11-13 23:08:11,303 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/data/129d1ee77/636faea04e7b4e29bbe8411aa76b4b40 [2021-11-13 23:08:11,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:08:11,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:08:11,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:08:11,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:08:11,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:08:11,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352b1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11, skipping insertion in model container [2021-11-13 23:08:11,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:08:11,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:08:11,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:08:11,523 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:08:11,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:08:11,561 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:08:11,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11 WrapperNode [2021-11-13 23:08:11,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:08:11,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:08:11,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:08:11,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:08:11,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:08:11,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:08:11,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:08:11,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:08:11,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:08:11,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:08:11,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:08:11,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:08:11,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:08:11,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:08:11,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:08:11,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:08:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:08:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:08:11,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:08:11,897 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 23:08:11,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:08:11 BoogieIcfgContainer [2021-11-13 23:08:11,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:08:11,901 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:08:11,901 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:08:11,911 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:08:11,912 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:08:11" (1/1) ... [2021-11-13 23:08:11,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:08:11,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:08:11,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-11-13 23:08:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-13 23:08:11,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 23:08:11,981 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:08:11,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:08:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:08:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:08:12,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:08:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-11-13 23:08:12,150 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-13 23:08:12,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 23:08:12,151 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:08:12,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:08:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:08:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:08:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:08:12,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-13 23:08:12,466 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-13 23:08:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 23:08:12,466 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:08:12,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:08:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:08:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:08:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:08:12,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2021-11-13 23:08:12,553 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-13 23:08:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 23:08:12,554 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:08:12,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:08:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:08:12,583 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:08:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:08:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:08:12,633 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:08:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:08:12,655 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2021-11-13 23:08:12,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:08:12 ImpRootNode [2021-11-13 23:08:12,680 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 23:08:12,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 23:08:12,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 23:08:12,681 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 23:08:12,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:08:11" (3/4) ... [2021-11-13 23:08:12,683 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-13 23:08:12,716 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 23:08:12,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 23:08:12,717 INFO L158 Benchmark]: Toolchain (without parser) took 1409.77ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 52.7MB in the beginning and 87.9MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:08:12,718 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 90.2MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:08:12,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.10ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 52.5MB in the beginning and 92.0MB in the end (delta: -39.5MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-13 23:08:12,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.59ms. Allocated memory is still 115.3MB. Free memory was 92.0MB in the beginning and 90.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:08:12,720 INFO L158 Benchmark]: Boogie Preprocessor took 23.09ms. Allocated memory is still 115.3MB. Free memory was 90.7MB in the beginning and 89.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:08:12,721 INFO L158 Benchmark]: RCFGBuilder took 277.52ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 81.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 23:08:12,722 INFO L158 Benchmark]: CodeCheck took 778.76ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 89.5MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:08:12,722 INFO L158 Benchmark]: Witness Printer took 36.12ms. Allocated memory is still 115.3MB. Free memory was 89.5MB in the beginning and 87.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:08:12,726 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 290.59ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 212.67ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 0 mSDtfsCounter, 105 mSolverCounterSat, 4.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 111 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 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 VAL [x=-2147483647] [L17] EXPR x - 1 [L17] x = x - 1 VAL [x=-2147483648] [L16] COND TRUE x != 0 VAL [x=-2147483648] [L17] x - 1 VAL [x=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 90.2MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.10ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 52.5MB in the beginning and 92.0MB in the end (delta: -39.5MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.59ms. Allocated memory is still 115.3MB. Free memory was 92.0MB in the beginning and 90.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.09ms. Allocated memory is still 115.3MB. Free memory was 90.7MB in the beginning and 89.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.52ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 81.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 778.76ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 89.5MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.12ms. Allocated memory is still 115.3MB. Free memory was 89.5MB in the beginning and 87.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 23:08:12,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b13245-c139-4e37-876f-fb9beec00a78/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)