./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/cstrpbrk-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/cstrpbrk-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ --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 5142bd1a70b277e6c0e9690abed85caa4ceacf811cc7ce059063d386607411a7 --- 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-6b4ec56 [2022-11-20 18:00:02,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:00:02,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:00:02,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:00:02,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:00:02,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:00:02,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:00:02,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:00:02,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:00:02,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:00:02,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:00:02,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:00:02,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:00:02,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:00:02,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:00:02,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:00:02,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:00:02,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:00:02,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:00:02,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:00:02,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:00:02,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:00:02,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:00:02,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:00:02,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:00:02,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:00:02,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:00:02,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:00:02,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:00:02,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:00:02,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:00:02,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:00:02,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:00:02,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:00:02,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:00:02,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:00:02,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:00:02,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:00:02,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:00:02,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:00:02,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:00:02,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:00:02,602 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:00:02,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:00:02,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:00:02,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:00:02,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:00:02,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:00:02,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:00:02,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:00:02,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:00:02,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:00:02,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:00:02,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:00:02,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:00:02,606 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:00:02,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:00:02,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:00:02,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:00:02,616 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:00:02,616 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:00:02,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:00:02,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:00:02,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:00:02,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:00:02,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:00:02,618 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:00:02,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:00:02,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:00:02,619 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_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5142bd1a70b277e6c0e9690abed85caa4ceacf811cc7ce059063d386607411a7 [2022-11-20 18:00:02,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:00:02,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:00:02,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:00:02,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:00:02,989 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:00:02,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/cstrpbrk-alloca-1.i [2022-11-20 18:00:06,020 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:00:06,291 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:00:06,291 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/sv-benchmarks/c/termination-memory-alloca/cstrpbrk-alloca-1.i [2022-11-20 18:00:06,311 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/data/d587b1fb9/7a39743f2b564a05aa28a9bb32f17096/FLAGe23ba4d6d [2022-11-20 18:00:06,326 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/data/d587b1fb9/7a39743f2b564a05aa28a9bb32f17096 [2022-11-20 18:00:06,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:00:06,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:00:06,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:00:06,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:00:06,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:00:06,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe074e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06, skipping insertion in model container [2022-11-20 18:00:06,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:00:06,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:00:06,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:00:06,706 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:00:06,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:00:06,798 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:00:06,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06 WrapperNode [2022-11-20 18:00:06,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:00:06,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:00:06,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:00:06,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:00:06,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,841 INFO L138 Inliner]: procedures = 111, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2022-11-20 18:00:06,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:00:06,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:00:06,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:00:06,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:00:06,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:00:06,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:00:06,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:00:06,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:00:06,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:06" (1/1) ... [2022-11-20 18:00:06,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:00:06,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:00:06,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:00:06,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:00:06,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:00:06,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:00:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:00:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:00:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:00:06,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:00:07,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:00:07,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:00:07,242 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:00:07,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:00:07,322 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 18:00:07,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:00:07 BoogieIcfgContainer [2022-11-20 18:00:07,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:00:07,326 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:00:07,326 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:00:07,337 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:00:07,337 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:00:07" (1/1) ... [2022-11-20 18:00:07,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:00:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:00:07,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2022-11-20 18:00:07,450 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-20 18:00:07,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 18:00:07,453 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:00:07,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:00:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:00:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:00:07,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:00:07,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-11-20 18:00:07,784 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-20 18:00:07,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:00:07,784 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:00:07,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:00:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:00:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:00:08,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:00:08,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2022-11-20 18:00:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-20 18:00:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:00:08,059 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:00:08,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:00:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:00:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:00:08,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:00:08,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-11-20 18:00:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-11-20 18:00:08,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 18:00:08,328 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:00:08,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:00:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:00:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:00:08,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:00:08,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2022-11-20 18:00:08,677 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2022-11-20 18:00:08,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:00:08,678 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-20 18:00:08,687 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 18:00:08,713 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:00:08,718 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:00:08,718 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:00:08,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:00:08 ImpRootNode [2022-11-20 18:00:08,720 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:00:08,722 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:00:08,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:00:08,723 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:00:08,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:00:07" (3/4) ... [2022-11-20 18:00:08,727 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:00:08,739 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 18:00:08,739 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 18:00:08,739 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 18:00:08,740 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 18:00:08,785 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:00:08,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:00:08,786 INFO L158 Benchmark]: Toolchain (without parser) took 2455.68ms. Allocated memory is still 180.4MB. Free memory was 146.7MB in the beginning and 108.1MB in the end (delta: 38.6MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2022-11-20 18:00:08,786 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 134.2MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:00:08,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.96ms. Allocated memory is still 180.4MB. Free memory was 146.7MB in the beginning and 131.0MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:00:08,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.08ms. Allocated memory is still 180.4MB. Free memory was 131.0MB in the beginning and 129.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:00:08,788 INFO L158 Benchmark]: Boogie Preprocessor took 29.67ms. Allocated memory is still 180.4MB. Free memory was 128.9MB in the beginning and 127.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:00:08,788 INFO L158 Benchmark]: RCFGBuilder took 451.73ms. Allocated memory is still 180.4MB. Free memory was 127.5MB in the beginning and 112.1MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:00:08,788 INFO L158 Benchmark]: CodeCheck took 1393.96ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 111.4MB in the end (delta: 758.6kB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-11-20 18:00:08,789 INFO L158 Benchmark]: Witness Printer took 63.12ms. Allocated memory is still 180.4MB. Free memory was 110.6MB in the beginning and 108.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:00:08,791 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, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 0 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 573]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 573]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 574]: 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: 552]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 134.2MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.96ms. Allocated memory is still 180.4MB. Free memory was 146.7MB in the beginning and 131.0MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.08ms. Allocated memory is still 180.4MB. Free memory was 131.0MB in the beginning and 129.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.67ms. Allocated memory is still 180.4MB. Free memory was 128.9MB in the beginning and 127.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 451.73ms. Allocated memory is still 180.4MB. Free memory was 127.5MB in the beginning and 112.1MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1393.96ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 111.4MB in the end (delta: 758.6kB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 63.12ms. Allocated memory is still 180.4MB. Free memory was 110.6MB in the beginning and 108.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 18:00:08,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f7865f1-f925-4c43-8b73-8363321837f5/bin/ukojak-pZX7IvK2PQ/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