./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/cstrpbrk_diffterm_alloca.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_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/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_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/cstrpbrk_diffterm_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/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_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/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 4b11c9964533b446d4a410c2e05b424a11d24fa8de6ca154a41c04142b1e6007 --- 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 17:37:57,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:37:57,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:37:57,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:37:57,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:37:57,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:37:57,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:37:57,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:37:57,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:37:57,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:37:57,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:37:57,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:37:57,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:37:57,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:37:57,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:37:57,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:37:57,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:37:57,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:37:57,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:37:57,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:37:57,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:37:57,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:37:57,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:37:57,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:37:57,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:37:57,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:37:57,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:37:57,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:37:57,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:37:57,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:37:57,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:37:57,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:37:57,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:37:57,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:37:57,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:37:57,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:37:57,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:37:57,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:37:57,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:37:57,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:37:57,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:37:57,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:37:57,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:37:57,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:37:57,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:37:57,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:37:57,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:37:57,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:37:57,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:37:57,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:37:57,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:37:57,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:37:57,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:37:57,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:37:57,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:37:57,954 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:37:57,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:37:57,954 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:37:57,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:37:57,955 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:37:57,955 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:37:57,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:37:57,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:37:57,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:37:57,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:37:57,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:37:57,956 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:37:57,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:37:57,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:37:57,956 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_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b11c9964533b446d4a410c2e05b424a11d24fa8de6ca154a41c04142b1e6007 [2022-11-20 17:37:58,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:37:58,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:37:58,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:37:58,291 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:37:58,292 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:37:58,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-15/cstrpbrk_diffterm_alloca.i [2022-11-20 17:38:01,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:38:01,669 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:38:01,670 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/sv-benchmarks/c/termination-15/cstrpbrk_diffterm_alloca.i [2022-11-20 17:38:01,681 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/data/ca4ec4297/a73e9938a58e4d4499632568dad7a089/FLAG58b8cf088 [2022-11-20 17:38:01,695 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/data/ca4ec4297/a73e9938a58e4d4499632568dad7a089 [2022-11-20 17:38:01,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:38:01,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:38:01,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:38:01,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:38:01,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:38:01,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:38:01" (1/1) ... [2022-11-20 17:38:01,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7843700c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:01, skipping insertion in model container [2022-11-20 17:38:01,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:38:01" (1/1) ... [2022-11-20 17:38:01,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:38:01,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:38:02,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:38:02,124 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:38:02,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:38:02,221 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:38:02,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02 WrapperNode [2022-11-20 17:38:02,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:38:02,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:38:02,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:38:02,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:38:02,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,287 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2022-11-20 17:38:02,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:38:02,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:38:02,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:38:02,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:38:02,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,320 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:38:02,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:38:02,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:38:02,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:38:02,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:38:02,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:38:02,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:38:02,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:38:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:38:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:38:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:38:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:38:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:38:02,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:38:02,534 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:38:02,559 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:38:02,777 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:38:02,862 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:38:02,862 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 17:38:02,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:38:02 BoogieIcfgContainer [2022-11-20 17:38:02,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:38:02,866 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:38:02,867 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:38:02,878 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:38:02,878 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:38:02" (1/1) ... [2022-11-20 17:38:02,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:38:02,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:38:02,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2022-11-20 17:38:02,938 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-20 17:38:02,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 17:38:02,940 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:38:02,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:38:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:38:03,236 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 17:38:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:38:03,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-11-20 17:38:03,290 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-20 17:38:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 17:38:03,290 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:38:03,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:38:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:38:03,443 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 17:38:03,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:38:03,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2022-11-20 17:38:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-20 17:38:03,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:38:03,509 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:38:03,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:38:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:38:03,633 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 17:38:03,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:38:03,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-11-20 17:38:03,804 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-11-20 17:38:03,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 17:38:03,804 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:38:03,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:38:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:38:03,957 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 17:38:04,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:38:04,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2022-11-20 17:38:04,210 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2022-11-20 17:38:04,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:38:04,211 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-20 17:38:04,219 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 17:38:04,248 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:38:04,252 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:38:04,252 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:38:04,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:38:04 ImpRootNode [2022-11-20 17:38:04,254 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:38:04,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:38:04,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:38:04,258 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:38:04,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:38:02" (3/4) ... [2022-11-20 17:38:04,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:38:04,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-20 17:38:04,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 17:38:04,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 17:38:04,274 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:38:04,318 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:38:04,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:38:04,319 INFO L158 Benchmark]: Toolchain (without parser) took 2620.66ms. Allocated memory is still 134.2MB. Free memory was 104.2MB in the beginning and 59.6MB in the end (delta: 44.5MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2022-11-20 17:38:04,320 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 107.0MB. Free memory was 61.8MB in the beginning and 61.6MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:38:04,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.09ms. Allocated memory is still 134.2MB. Free memory was 103.8MB in the beginning and 86.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 17:38:04,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.30ms. Allocated memory is still 134.2MB. Free memory was 86.3MB in the beginning and 84.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:38:04,322 INFO L158 Benchmark]: Boogie Preprocessor took 43.28ms. Allocated memory is still 134.2MB. Free memory was 84.5MB in the beginning and 82.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:38:04,322 INFO L158 Benchmark]: RCFGBuilder took 530.38ms. Allocated memory is still 134.2MB. Free memory was 82.8MB in the beginning and 67.4MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 17:38:04,323 INFO L158 Benchmark]: CodeCheck took 1388.24ms. Allocated memory is still 134.2MB. Free memory was 67.4MB in the beginning and 62.2MB in the end (delta: 5.2MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-11-20 17:38:04,323 INFO L158 Benchmark]: Witness Printer took 62.25ms. Allocated memory is still 134.2MB. Free memory was 62.2MB in the beginning and 59.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:38:04,326 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: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 391]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 391]: 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: 372]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 364]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 107.0MB. Free memory was 61.8MB in the beginning and 61.6MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.09ms. Allocated memory is still 134.2MB. Free memory was 103.8MB in the beginning and 86.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.30ms. Allocated memory is still 134.2MB. Free memory was 86.3MB in the beginning and 84.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.28ms. Allocated memory is still 134.2MB. Free memory was 84.5MB in the beginning and 82.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 530.38ms. Allocated memory is still 134.2MB. Free memory was 82.8MB in the beginning and 67.4MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1388.24ms. Allocated memory is still 134.2MB. Free memory was 67.4MB in the beginning and 62.2MB in the end (delta: 5.2MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 62.25ms. Allocated memory is still 134.2MB. Free memory was 62.2MB in the beginning and 59.6MB 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 17:38:04,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d1f329-a828-438c-b9ed-9e0e0b8613e7/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