./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/easy1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB --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 6ac2aa18762d979209bcd04d19d6f902a372d08cc384f065a4b8009fe3c76991 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:38:14,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:38:14,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:38:14,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:38:14,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:38:14,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:38:14,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:38:14,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:38:14,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:38:14,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:38:14,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:38:14,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:38:14,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:38:14,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:38:14,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:38:14,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:38:14,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:38:14,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:38:14,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:38:14,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:38:14,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:38:14,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:38:14,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:38:14,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:38:14,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:38:14,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:38:14,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:38:14,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:38:14,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:38:14,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:38:14,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:38:14,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:38:14,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:38:14,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:38:14,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:38:14,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:38:14,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:38:14,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:38:14,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:38:14,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:38:14,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:38:14,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 16:38:14,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:38:14,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:38:14,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:38:14,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:38:14,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:38:14,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:38:14,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:38:14,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:38:14,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:38:14,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:38:14,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:38:14,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:38:14,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:38:14,852 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 16:38:14,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:38:14,852 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:38:14,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:38:14,853 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:38:14,853 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:38:14,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:38:14,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:38:14,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:38:14,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:38:14,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:38:14,855 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:38:14,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:38:14,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:38:14,855 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_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac2aa18762d979209bcd04d19d6f902a372d08cc384f065a4b8009fe3c76991 [2022-10-17 16:38:15,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:38:15,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:38:15,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:38:15,149 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:38:15,150 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:38:15,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted/easy1.c [2022-10-17 16:38:15,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/data/8941e966c/1a496959c1c54c0e86a430336b9c6f59/FLAGab67329eb [2022-10-17 16:38:15,702 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:38:15,702 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/sv-benchmarks/c/termination-crafted/easy1.c [2022-10-17 16:38:15,710 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/data/8941e966c/1a496959c1c54c0e86a430336b9c6f59/FLAGab67329eb [2022-10-17 16:38:16,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/data/8941e966c/1a496959c1c54c0e86a430336b9c6f59 [2022-10-17 16:38:16,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:38:16,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:38:16,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:38:16,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:38:16,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:38:16,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e5e416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16, skipping insertion in model container [2022-10-17 16:38:16,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:38:16,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:38:16,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:38:16,314 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:38:16,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:38:16,343 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:38:16,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16 WrapperNode [2022-10-17 16:38:16,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:38:16,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:38:16,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:38:16,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:38:16,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,375 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-10-17 16:38:16,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:38:16,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:38:16,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:38:16,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:38:16,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:38:16,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:38:16,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:38:16,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:38:16,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:38:16,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:38:16,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:38:16,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:38:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:38:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:38:16,559 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:38:16,561 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:38:16,660 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:38:16,681 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:38:16,683 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:38:16,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:38:16 BoogieIcfgContainer [2022-10-17 16:38:16,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:38:16,687 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:38:16,688 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:38:16,698 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:38:16,699 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:38:16" (1/1) ... [2022-10-17 16:38:16,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:38:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:16,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2022-10-17 16:38:16,783 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-10-17 16:38:16,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:38:16,786 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:16,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:38:16,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-10-17 16:38:16,998 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-10-17 16:38:16,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:38:16,998 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:16,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:38:17,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:17,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2022-10-17 16:38:17,040 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-10-17 16:38:17,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:38:17,041 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:17,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:38:17,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2022-10-17 16:38:17,271 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2022-10-17 16:38:17,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:38:17,274 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:17,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:38:17,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-10-17 16:38:17,349 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-10-17 16:38:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:38:17,350 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:17,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:38:17,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:17,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2022-10-17 16:38:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-10-17 16:38:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:38:17,479 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:17,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:17,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:38:17,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2022-10-17 16:38:17,918 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-10-17 16:38:17,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:38:17,919 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:17,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:38:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-10-17 16:38:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-10-17 16:38:18,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:38:18,010 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2022-10-17 16:38:18,022 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-10-17 16:38:18,094 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-10-17 16:38:18,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:38:18 ImpRootNode [2022-10-17 16:38:18,107 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:38:18,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:38:18,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:38:18,109 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:38:18,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:38:16" (3/4) ... [2022-10-17 16:38:18,113 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:38:18,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-10-17 16:38:18,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 16:38:18,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 16:38:18,185 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:38:18,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:38:18,186 INFO L158 Benchmark]: Toolchain (without parser) took 2109.39ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 76.9MB in the beginning and 85.4MB in the end (delta: -8.5MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2022-10-17 16:38:18,186 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 107.0MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:38:18,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.41ms. Allocated memory is still 107.0MB. Free memory was 76.6MB in the beginning and 82.4MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:38:18,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.38ms. Allocated memory is still 107.0MB. Free memory was 82.4MB in the beginning and 81.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:38:18,188 INFO L158 Benchmark]: Boogie Preprocessor took 24.82ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:38:18,189 INFO L158 Benchmark]: RCFGBuilder took 282.71ms. Allocated memory is still 107.0MB. Free memory was 80.0MB in the beginning and 70.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:38:18,190 INFO L158 Benchmark]: CodeCheck took 1419.31ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 70.7MB in the beginning and 87.5MB in the end (delta: -16.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2022-10-17 16:38:18,190 INFO L158 Benchmark]: Witness Printer took 76.91ms. Allocated memory is still 134.2MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:38:18,193 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 111 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 28 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 <= x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 107.0MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.41ms. Allocated memory is still 107.0MB. Free memory was 76.6MB in the beginning and 82.4MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.38ms. Allocated memory is still 107.0MB. Free memory was 82.4MB in the beginning and 81.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.82ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 282.71ms. Allocated memory is still 107.0MB. Free memory was 80.0MB in the beginning and 70.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1419.31ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 70.7MB in the beginning and 87.5MB in the end (delta: -16.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Witness Printer took 76.91ms. Allocated memory is still 134.2MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:38:18,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af69d420-b5f9-4f4a-a8d3-78374ecc0039/bin/ukojak-92XMlrwhuB/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