./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/sanfoundry_24-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/array-examples/sanfoundry_24-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0a16588b251f5de7b3febde43795c7086835cc989637b8bd82aa8d6af355c6b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:33:34,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:33:34,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:33:34,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:33:34,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:33:34,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:33:34,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:33:34,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:33:34,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:33:34,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:33:34,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:33:34,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:33:34,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:33:34,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:33:34,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:33:34,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:33:34,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:33:34,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:33:34,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:33:34,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:33:34,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:33:34,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:33:34,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:33:34,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:33:34,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:33:34,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:33:34,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:33:34,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:33:34,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:33:34,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:33:34,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:33:34,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:33:34,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:33:34,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:33:34,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:33:34,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:33:34,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:33:34,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:33:34,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:33:34,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:33:34,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:33:34,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:33:34,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:33:34,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:33:34,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:33:34,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:33:34,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:33:34,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:33:34,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:33:34,558 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:33:34,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:33:34,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:33:34,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:33:34,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:33:34,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:33:34,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:33:34,564 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:33:34,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:33:34,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:33:34,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:33:34,566 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:33:34,566 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:33:34,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:33:34,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:33:34,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:33:34,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:33:34,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:33:34,568 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:33:34,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:33:34,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:33:34,590 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_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a16588b251f5de7b3febde43795c7086835cc989637b8bd82aa8d6af355c6b [2022-10-17 16:33:34,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:33:34,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:33:34,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:33:34,893 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:33:34,894 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:33:34,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/array-examples/sanfoundry_24-1.i [2022-10-17 16:33:34,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/data/e1148293e/98009334282f413fa9400f4798d58b5b/FLAG7368d9236 [2022-10-17 16:33:35,484 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:33:35,485 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/sv-benchmarks/c/array-examples/sanfoundry_24-1.i [2022-10-17 16:33:35,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/data/e1148293e/98009334282f413fa9400f4798d58b5b/FLAG7368d9236 [2022-10-17 16:33:35,857 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/data/e1148293e/98009334282f413fa9400f4798d58b5b [2022-10-17 16:33:35,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:33:35,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:33:35,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:33:35,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:33:35,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:33:35,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:33:35" (1/1) ... [2022-10-17 16:33:35,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310669d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:35, skipping insertion in model container [2022-10-17 16:33:35,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:33:35" (1/1) ... [2022-10-17 16:33:35,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:33:35,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:33:36,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/sv-benchmarks/c/array-examples/sanfoundry_24-1.i[848,861] [2022-10-17 16:33:36,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:33:36,200 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:33:36,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/sv-benchmarks/c/array-examples/sanfoundry_24-1.i[848,861] [2022-10-17 16:33:36,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:33:36,255 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:33:36,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36 WrapperNode [2022-10-17 16:33:36,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:33:36,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:33:36,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:33:36,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:33:36,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,323 INFO L138 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2022-10-17 16:33:36,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:33:36,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:33:36,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:33:36,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:33:36,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,373 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:33:36,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:33:36,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:33:36,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:33:36,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:33:36,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:33:36,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:33:36,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:33:36,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:33:36,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:33:36,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 16:33:36,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:33:36,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:33:36,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:33:36,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:33:36,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:33:36,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:33:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:33:36,558 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:33:36,560 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:33:36,780 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:33:36,854 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:33:36,855 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 16:33:36,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:33:36 BoogieIcfgContainer [2022-10-17 16:33:36,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:33:36,859 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:33:36,860 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:33:36,873 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:33:36,873 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:33:36" (1/1) ... [2022-10-17 16:33:36,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:33:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:33:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2022-10-17 16:33:36,996 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-10-17 16:33:37,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:33:37,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:33:37,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:33:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:33:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:33:37,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:33:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2022-10-17 16:33:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2022-10-17 16:33:37,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:33:37,534 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:33:37,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:33:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:33:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:33:38,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:33:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 32 transitions. [2022-10-17 16:33:38,367 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2022-10-17 16:33:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:33:38,381 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:33:38,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:33:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:33:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:33:38,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:33:38,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 35 transitions. [2022-10-17 16:33:38,533 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-10-17 16:33:38,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:33:38,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:33:38,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:33:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:33:38,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:33:38,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:33:38,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 36 transitions. [2022-10-17 16:33:38,829 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2022-10-17 16:33:38,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:33:38,830 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:33:38,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:33:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:33:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:33:39,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:33:39,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 32 transitions. [2022-10-17 16:33:39,353 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 32 transitions. [2022-10-17 16:33:39,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:33:39,356 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-10-17 16:33:39,370 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:33:39,406 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:33:39,410 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:33:39,411 INFO L560 CodeCheckObserver]: Invariant with dag size 7 [2022-10-17 16:33:39,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:33:39 ImpRootNode [2022-10-17 16:33:39,418 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:33:39,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:33:39,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:33:39,421 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:33:39,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:33:36" (3/4) ... [2022-10-17 16:33:39,426 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:33:39,433 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 16:33:39,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-10-17 16:33:39,443 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-10-17 16:33:39,443 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:33:39,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:33:39,541 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:33:39,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:33:39,542 INFO L158 Benchmark]: Toolchain (without parser) took 3681.05ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 69.4MB in the beginning and 91.6MB in the end (delta: -22.2MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-10-17 16:33:39,543 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 94.4MB. Free memory was 65.4MB in the beginning and 65.3MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:33:39,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.95ms. Allocated memory is still 94.4MB. Free memory was 69.2MB in the beginning and 66.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:33:39,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.75ms. Allocated memory is still 94.4MB. Free memory was 66.8MB in the beginning and 65.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:33:39,544 INFO L158 Benchmark]: Boogie Preprocessor took 60.00ms. Allocated memory is still 94.4MB. Free memory was 65.2MB in the beginning and 64.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:33:39,545 INFO L158 Benchmark]: RCFGBuilder took 473.10ms. Allocated memory is still 94.4MB. Free memory was 63.9MB in the beginning and 51.2MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:33:39,545 INFO L158 Benchmark]: CodeCheck took 2558.67ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 51.2MB in the beginning and 94.7MB in the end (delta: -43.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:33:39,546 INFO L158 Benchmark]: Witness Printer took 121.36ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 91.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:33:39,549 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 136 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 200 IncrementalHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 73 mSDtfsCounter, 200 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 397 GetRequests, 371 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 3/4 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: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: i == 0 || !(num <= 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 94.4MB. Free memory was 65.4MB in the beginning and 65.3MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.95ms. Allocated memory is still 94.4MB. Free memory was 69.2MB in the beginning and 66.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.75ms. Allocated memory is still 94.4MB. Free memory was 66.8MB in the beginning and 65.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.00ms. Allocated memory is still 94.4MB. Free memory was 65.2MB in the beginning and 64.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 473.10ms. Allocated memory is still 94.4MB. Free memory was 63.9MB in the beginning and 51.2MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 2558.67ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 51.2MB in the beginning and 94.7MB in the end (delta: -43.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 121.36ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 91.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:33:39,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0e5c37-70a7-4d08-91f8-799903c2f7ad/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE