./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrcmp.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_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/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_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrcmp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/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_85434fed-afdf-4226-b063-dabff4e0343e/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 f94b058015be4fc42a3d40d63b8ed2b8d3be3933ae3f7b0cb4e17bd99a68e898 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 21:57:29,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 21:57:29,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 21:57:29,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 21:57:29,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 21:57:29,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 21:57:29,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 21:57:29,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 21:57:29,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 21:57:29,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 21:57:29,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 21:57:29,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 21:57:29,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 21:57:29,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 21:57:29,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 21:57:29,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 21:57:29,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 21:57:29,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 21:57:29,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 21:57:29,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 21:57:29,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 21:57:29,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 21:57:29,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 21:57:29,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 21:57:29,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 21:57:29,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 21:57:29,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 21:57:29,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 21:57:29,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 21:57:29,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 21:57:29,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 21:57:29,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 21:57:29,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 21:57:29,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 21:57:29,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 21:57:29,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 21:57:29,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 21:57:29,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 21:57:29,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 21:57:29,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 21:57:29,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 21:57:29,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-13 21:57:29,998 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 21:57:29,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 21:57:30,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 21:57:30,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 21:57:30,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 21:57:30,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 21:57:30,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 21:57:30,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 21:57:30,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 21:57:30,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 21:57:30,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 21:57:30,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 21:57:30,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 21:57:30,007 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 21:57:30,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 21:57:30,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 21:57:30,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 21:57:30,008 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 21:57:30,008 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 21:57:30,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 21:57:30,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 21:57:30,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 21:57:30,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 21:57:30,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 21:57:30,010 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 21:57:30,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 21:57:30,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 21:57:30,011 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_85434fed-afdf-4226-b063-dabff4e0343e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f94b058015be4fc42a3d40d63b8ed2b8d3be3933ae3f7b0cb4e17bd99a68e898 [2021-11-13 21:57:30,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 21:57:30,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 21:57:30,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 21:57:30,464 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 21:57:30,466 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 21:57:30,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/termination-crafted-lit/cstrcmp.c [2021-11-13 21:57:30,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/data/0722a8bc8/bd72fd856be84fd6817513515db032f0/FLAGaa0e17f04 [2021-11-13 21:57:31,189 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 21:57:31,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/sv-benchmarks/c/termination-crafted-lit/cstrcmp.c [2021-11-13 21:57:31,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/data/0722a8bc8/bd72fd856be84fd6817513515db032f0/FLAGaa0e17f04 [2021-11-13 21:57:31,561 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/data/0722a8bc8/bd72fd856be84fd6817513515db032f0 [2021-11-13 21:57:31,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 21:57:31,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 21:57:31,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 21:57:31,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 21:57:31,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 21:57:31,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265e295b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31, skipping insertion in model container [2021-11-13 21:57:31,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 21:57:31,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 21:57:31,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:57:31,807 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 21:57:31,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:57:31,845 INFO L208 MainTranslator]: Completed translation [2021-11-13 21:57:31,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31 WrapperNode [2021-11-13 21:57:31,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 21:57:31,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 21:57:31,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 21:57:31,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 21:57:31,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 21:57:31,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 21:57:31,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 21:57:31,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 21:57:31,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 21:57:31,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 21:57:31,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 21:57:31,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 21:57:31,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:31" (1/1) ... [2021-11-13 21:57:31,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 21:57:31,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/z3 [2021-11-13 21:57:31,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 21:57:31,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 21:57:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 21:57:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2021-11-13 21:57:32,031 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2021-11-13 21:57:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 21:57:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 21:57:32,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 21:57:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 21:57:32,437 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 21:57:32,437 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 21:57:32,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:57:32 BoogieIcfgContainer [2021-11-13 21:57:32,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 21:57:32,442 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 21:57:32,442 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 21:57:32,458 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 21:57:32,459 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:57:32" (1/1) ... [2021-11-13 21:57:32,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:57:32,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:32,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-13 21:57:32,558 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-13 21:57:32,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 21:57:32,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:32,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:32,757 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 21:57:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:32,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2021-11-13 21:57:32,813 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-13 21:57:32,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 21:57:32,818 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:32,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:32,881 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 21:57:32,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-13 21:57:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-13 21:57:32,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 21:57:32,971 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2021-11-13 21:57:32,983 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-11-13 21:57:33,020 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 21:57:33,026 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 21:57:33,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:57:33 ImpRootNode [2021-11-13 21:57:33,031 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 21:57:33,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 21:57:33,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 21:57:33,033 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 21:57:33,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:57:32" (3/4) ... [2021-11-13 21:57:33,040 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 21:57:33,049 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2021-11-13 21:57:33,061 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-13 21:57:33,062 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-13 21:57:33,062 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 21:57:33,063 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 21:57:33,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 21:57:33,153 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 21:57:33,154 INFO L158 Benchmark]: Toolchain (without parser) took 1588.06ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 56.6MB in the beginning and 59.6MB in the end (delta: -3.0MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2021-11-13 21:57:33,155 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 88.1MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 21:57:33,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.84ms. Allocated memory is still 88.1MB. Free memory was 56.4MB in the beginning and 47.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 21:57:33,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.38ms. Allocated memory is still 88.1MB. Free memory was 47.0MB in the beginning and 45.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 21:57:33,158 INFO L158 Benchmark]: Boogie Preprocessor took 31.78ms. Allocated memory is still 88.1MB. Free memory was 45.6MB in the beginning and 44.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 21:57:33,160 INFO L158 Benchmark]: RCFGBuilder took 515.20ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.4MB in the beginning and 78.5MB in the end (delta: -34.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-11-13 21:57:33,161 INFO L158 Benchmark]: CodeCheck took 589.70ms. Allocated memory is still 107.0MB. Free memory was 78.5MB in the beginning and 62.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 21:57:33,162 INFO L158 Benchmark]: Witness Printer took 120.98ms. Allocated memory is still 107.0MB. Free memory was 62.9MB in the beginning and 59.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 21:57:33,165 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 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, 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, 14 SdHoareTripleChecker+Valid, 64.70ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 42.55ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 6 mSDtfsCounter, 18 mSolverCounterSat, 2.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 88.1MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.84ms. Allocated memory is still 88.1MB. Free memory was 56.4MB in the beginning and 47.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.38ms. Allocated memory is still 88.1MB. Free memory was 47.0MB in the beginning and 45.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.78ms. Allocated memory is still 88.1MB. Free memory was 45.6MB in the beginning and 44.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 515.20ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.4MB in the beginning and 78.5MB in the end (delta: -34.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * CodeCheck took 589.70ms. Allocated memory is still 107.0MB. Free memory was 78.5MB in the beginning and 62.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 120.98ms. Allocated memory is still 107.0MB. Free memory was 62.9MB in the beginning and 59.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 21:57:33,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85434fed-afdf-4226-b063-dabff4e0343e/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 Result: TRUE