./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-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_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/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_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/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_996e2cae-895e-404a-a14f-3d1f9730a58b/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 9e9fee7822ea181968af00cc75a840ddcb8cdf140cdf423bd35cdb5d3f0e2f5d --- 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 18:07:19,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:07:19,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:07:19,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:07:19,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:07:19,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:07:19,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:07:19,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:07:19,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:07:19,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:07:19,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:07:19,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:07:19,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:07:19,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:07:19,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:07:19,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:07:19,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:07:19,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:07:19,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:07:19,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:07:19,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:07:19,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:07:19,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:07:19,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:07:19,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:07:19,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:07:19,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:07:19,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:07:19,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:07:19,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:07:19,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:07:19,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:07:19,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:07:19,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:07:19,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:07:19,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:07:19,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:07:19,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:07:19,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:07:19,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:07:19,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:07:19,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:07:19,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:07:19,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:07:19,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:07:19,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:07:19,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:07:19,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:07:19,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:07:19,877 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:07:19,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:07:19,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:07:19,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:07:19,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:07:19,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:07:19,880 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:07:19,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:07:19,880 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:07:19,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:07:19,881 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:07:19,881 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:07:19,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:07:19,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:07:19,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:07:19,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:07:19,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:07:19,882 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:07:19,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:07:19,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:07:19,883 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_996e2cae-895e-404a-a14f-3d1f9730a58b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e9fee7822ea181968af00cc75a840ddcb8cdf140cdf423bd35cdb5d3f0e2f5d [2022-11-20 18:07:20,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:07:20,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:07:20,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:07:20,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:07:20,214 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:07:20,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i [2022-11-20 18:07:23,275 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:07:23,544 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:07:23,544 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i [2022-11-20 18:07:23,554 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/data/772732f6a/f3334cd30f8042bc87361d075b11eb87/FLAG68956255f [2022-11-20 18:07:23,568 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/data/772732f6a/f3334cd30f8042bc87361d075b11eb87 [2022-11-20 18:07:23,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:07:23,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:07:23,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:07:23,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:07:23,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:07:23,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:23,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18226ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23, skipping insertion in model container [2022-11-20 18:07:23,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:23,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:07:23,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:07:23,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:07:23,903 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:07:23,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:07:23,966 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:07:23,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23 WrapperNode [2022-11-20 18:07:23,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:07:23,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:07:23,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:07:23,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:07:23,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:23,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,022 INFO L138 Inliner]: procedures = 111, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-11-20 18:07:24,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:07:24,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:07:24,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:07:24,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:07:24,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:07:24,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:07:24,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:07:24,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:07:24,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:23" (1/1) ... [2022-11-20 18:07:24,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:07:24,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:07:24,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:07:24,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:07:24,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:07:24,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:07:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:07:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:07:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:07:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:07:24,313 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:07:24,315 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:07:24,582 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:07:24,679 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:07:24,679 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 18:07:24,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:07:24 BoogieIcfgContainer [2022-11-20 18:07:24,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:07:24,683 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:07:24,683 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:07:24,693 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:07:24,708 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:07:24" (1/1) ... [2022-11-20 18:07:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:07:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:24,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2022-11-20 18:07:24,774 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-20 18:07:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 18:07:24,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:24,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:25,107 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 18:07:25,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:25,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2022-11-20 18:07:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-11-20 18:07:25,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:07:25,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:25,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:25,315 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 18:07:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:25,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2022-11-20 18:07:25,425 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-11-20 18:07:25,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 18:07:25,425 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:25,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:25,553 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 18:07:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2022-11-20 18:07:25,735 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-20 18:07:25,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:07:25,735 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:25,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:25,831 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 18:07:26,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-11-20 18:07:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-20 18:07:26,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:07:26,122 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:26,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:26,248 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 18:07:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2022-11-20 18:07:26,691 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-20 18:07:26,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 18:07:26,692 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:26,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:26,796 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 18:07:27,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:27,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-11-20 18:07:27,395 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-11-20 18:07:27,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:07:27,395 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2022-11-20 18:07:27,406 INFO L754 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2022-11-20 18:07:27,461 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:07:27,465 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:07:27,465 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:07:27,466 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:07:27,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:07:27 ImpRootNode [2022-11-20 18:07:27,466 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:07:27,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:07:27,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:07:27,467 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:07:27,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:07:24" (3/4) ... [2022-11-20 18:07:27,471 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:07:27,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-20 18:07:27,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 18:07:27,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 18:07:27,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 18:07:27,536 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:07:27,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:07:27,538 INFO L158 Benchmark]: Toolchain (without parser) took 3965.77ms. Allocated memory is still 188.7MB. Free memory was 143.6MB in the beginning and 121.0MB in the end (delta: 22.6MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-11-20 18:07:27,539 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:07:27,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.42ms. Allocated memory is still 188.7MB. Free memory was 143.6MB in the beginning and 127.9MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 18:07:27,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.18ms. Allocated memory is still 188.7MB. Free memory was 127.9MB in the beginning and 125.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:07:27,549 INFO L158 Benchmark]: Boogie Preprocessor took 36.47ms. Allocated memory is still 188.7MB. Free memory was 125.9MB in the beginning and 124.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:07:27,550 INFO L158 Benchmark]: RCFGBuilder took 619.98ms. Allocated memory is still 188.7MB. Free memory was 124.3MB in the beginning and 109.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:07:27,552 INFO L158 Benchmark]: CodeCheck took 2783.12ms. Allocated memory is still 188.7MB. Free memory was 109.6MB in the beginning and 123.0MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:07:27,553 INFO L158 Benchmark]: Witness Printer took 70.13ms. Allocated memory is still 188.7MB. Free memory was 123.0MB in the beginning and 121.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:07:27,554 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, 21 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 345 IncrementalHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 0 mSDtfsCounter, 345 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1898 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.42ms. Allocated memory is still 188.7MB. Free memory was 143.6MB in the beginning and 127.9MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.18ms. Allocated memory is still 188.7MB. Free memory was 127.9MB in the beginning and 125.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.47ms. Allocated memory is still 188.7MB. Free memory was 125.9MB in the beginning and 124.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 619.98ms. Allocated memory is still 188.7MB. Free memory was 124.3MB in the beginning and 109.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 2783.12ms. Allocated memory is still 188.7MB. Free memory was 109.6MB in the beginning and 123.0MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.13ms. Allocated memory is still 188.7MB. Free memory was 123.0MB in the beginning and 121.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 18:07:27,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996e2cae-895e-404a-a14f-3d1f9730a58b/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