./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.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_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/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_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/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_47c10d43-d5e6-414c-b929-c8b7094660b5/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 c64ddc091da8ed0532dcccc83eb64a4ecc9abe88fb93c047052ca7ac9ea29989 --- 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 16:50:27,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:50:27,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:50:27,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:50:27,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:50:27,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:50:27,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:50:27,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:50:27,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:50:27,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:50:27,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:50:27,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:50:27,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:50:27,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:50:27,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:50:27,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:50:27,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:50:27,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:50:27,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:50:27,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:50:27,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:50:27,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:50:27,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:50:27,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:50:27,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:50:27,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:50:27,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:50:27,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:50:27,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:50:27,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:50:27,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:50:27,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:50:27,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:50:27,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:50:27,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:50:27,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:50:27,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:50:27,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:50:27,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:50:27,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:50:27,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:50:27,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 16:50:27,827 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:50:27,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:50:27,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:50:27,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:50:27,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:50:27,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:50:27,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:50:27,830 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:50:27,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:50:27,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:50:27,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:50:27,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:50:27,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:50:27,831 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 16:50:27,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:50:27,831 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:50:27,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:50:27,832 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:50:27,832 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:50:27,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:50:27,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:50:27,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:50:27,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:50:27,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:50:27,833 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:50:27,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:50:27,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:50:27,844 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_47c10d43-d5e6-414c-b929-c8b7094660b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c64ddc091da8ed0532dcccc83eb64a4ecc9abe88fb93c047052ca7ac9ea29989 [2022-10-17 16:50:28,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:50:28,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:50:28,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:50:28,159 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:50:28,160 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:50:28,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2022-10-17 16:50:28,241 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/data/59af2025e/f0a8ba545ad74730b589af85a884a13b/FLAGeb35387a0 [2022-10-17 16:50:28,786 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:50:28,786 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2022-10-17 16:50:28,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/data/59af2025e/f0a8ba545ad74730b589af85a884a13b/FLAGeb35387a0 [2022-10-17 16:50:29,134 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/data/59af2025e/f0a8ba545ad74730b589af85a884a13b [2022-10-17 16:50:29,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:50:29,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:50:29,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:50:29,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:50:29,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:50:29,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8266ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29, skipping insertion in model container [2022-10-17 16:50:29,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:50:29,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:50:29,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:50:29,343 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:50:29,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:50:29,379 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:50:29,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29 WrapperNode [2022-10-17 16:50:29,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:50:29,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:50:29,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:50:29,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:50:29,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,413 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-10-17 16:50:29,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:50:29,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:50:29,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:50:29,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:50:29,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,437 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:50:29,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:50:29,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:50:29,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:50:29,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:50:29,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:50:29,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:50:29,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:50:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-10-17 16:50:29,533 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-10-17 16:50:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:50:29,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:50:29,588 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:50:29,591 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:50:29,747 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:50:29,781 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:50:29,782 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:50:29,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:29 BoogieIcfgContainer [2022-10-17 16:50:29,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:50:29,786 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:50:29,786 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:50:29,795 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:50:29,795 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:29" (1/1) ... [2022-10-17 16:50:29,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:50:29,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:29,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2022-10-17 16:50:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-10-17 16:50:29,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:50:29,877 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:29,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:30,132 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 16:50:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:30,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2022-10-17 16:50:30,252 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2022-10-17 16:50:30,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:50:30,254 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:30,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:30,318 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 16:50:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2022-10-17 16:50:30,335 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2022-10-17 16:50:30,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:50:30,336 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:30,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:30,424 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 16:50:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 31 transitions. [2022-10-17 16:50:30,576 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2022-10-17 16:50:30,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:50:30,579 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:30,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:30,688 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 16:50:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 17 states and 26 transitions. [2022-10-17 16:50:30,718 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2022-10-17 16:50:30,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:50:30,719 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:30,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:50:31,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 10 states and 12 transitions. [2022-10-17 16:50:31,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-10-17 16:50:31,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:50:31,442 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-10-17 16:50:31,455 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-10-17 16:50:31,519 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:50:31,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:50:31 ImpRootNode [2022-10-17 16:50:31,524 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:50:31,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:50:31,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:50:31,526 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:50:31,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:29" (3/4) ... [2022-10-17 16:50:31,530 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:50:31,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2022-10-17 16:50:31,544 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-10-17 16:50:31,545 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-10-17 16:50:31,545 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 16:50:31,598 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:50:31,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:50:31,600 INFO L158 Benchmark]: Toolchain (without parser) took 2460.61ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 68.6MB in the beginning and 101.1MB in the end (delta: -32.5MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2022-10-17 16:50:31,601 INFO L158 Benchmark]: CDTParser took 1.41ms. Allocated memory is still 92.3MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:50:31,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.44ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 68.8MB in the end (delta: -457.3kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:50:31,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.83ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 67.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:50:31,602 INFO L158 Benchmark]: Boogie Preprocessor took 22.92ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 66.5MB in the end (delta: 966.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:50:31,603 INFO L158 Benchmark]: RCFGBuilder took 344.13ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 57.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:50:31,604 INFO L158 Benchmark]: CodeCheck took 1738.13ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 57.2MB in the beginning and 49.4MB in the end (delta: 7.8MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2022-10-17 16:50:31,605 INFO L158 Benchmark]: Witness Printer took 73.12ms. Allocated memory is still 125.8MB. Free memory was 49.4MB in the beginning and 101.1MB in the end (delta: -51.7MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-10-17 16:50:31,612 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 156 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 181 IncrementalHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 30 mSDtfsCounter, 181 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 363 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 3/5 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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: 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: 22]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41ms. Allocated memory is still 92.3MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.44ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 68.8MB in the end (delta: -457.3kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.83ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 67.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.92ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 66.5MB in the end (delta: 966.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 344.13ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 57.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1738.13ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 57.2MB in the beginning and 49.4MB in the end (delta: 7.8MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * Witness Printer took 73.12ms. Allocated memory is still 125.8MB. Free memory was 49.4MB in the beginning and 101.1MB in the end (delta: -51.7MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:50:31,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47c10d43-d5e6-414c-b929-c8b7094660b5/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