./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-simple/nested_1b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_1b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4 --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 de4c7bf005639409d0c5506b91694c0a93e2905c64b2cd28aafb6e9617d859e5 --- 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-2329fc7 [2022-12-15 01:47:57,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 01:47:57,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 01:47:57,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 01:47:57,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 01:47:57,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 01:47:57,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 01:47:57,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 01:47:57,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 01:47:57,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 01:47:57,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 01:47:57,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 01:47:57,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 01:47:57,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 01:47:57,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 01:47:57,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 01:47:57,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 01:47:57,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 01:47:57,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 01:47:57,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 01:47:57,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 01:47:57,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 01:47:57,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 01:47:57,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 01:47:57,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 01:47:57,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 01:47:57,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 01:47:57,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 01:47:57,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 01:47:57,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 01:47:57,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 01:47:57,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 01:47:57,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 01:47:57,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 01:47:57,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 01:47:57,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 01:47:57,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 01:47:57,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 01:47:57,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 01:47:57,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 01:47:57,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 01:47:57,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-15 01:47:57,265 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 01:47:57,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 01:47:57,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 01:47:57,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 01:47:57,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 01:47:57,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 01:47:57,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 01:47:57,267 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-15 01:47:57,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 01:47:57,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-15 01:47:57,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 01:47:57,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 01:47:57,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 01:47:57,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 01:47:57,273 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-15 01:47:57,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 01:47:57,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 01:47:57,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 01:47:57,274 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 01:47:57,274 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 01:47:57,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 01:47:57,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:47:57,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 01:47:57,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 01:47:57,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 01:47:57,275 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 01:47:57,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 01:47:57,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 01:47:57,276 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_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de4c7bf005639409d0c5506b91694c0a93e2905c64b2cd28aafb6e9617d859e5 [2022-12-15 01:47:57,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 01:47:57,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 01:47:57,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 01:47:57,479 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 01:47:57,479 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 01:47:57,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/loop-simple/nested_1b.c [2022-12-15 01:48:00,010 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 01:48:00,164 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 01:48:00,165 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/sv-benchmarks/c/loop-simple/nested_1b.c [2022-12-15 01:48:00,170 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/data/7e2faf59e/5b8b475e3a284744b74665a5776a6703/FLAG808be1871 [2022-12-15 01:48:00,589 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/data/7e2faf59e/5b8b475e3a284744b74665a5776a6703 [2022-12-15 01:48:00,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 01:48:00,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 01:48:00,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 01:48:00,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 01:48:00,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 01:48:00,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195ce78f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00, skipping insertion in model container [2022-12-15 01:48:00,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 01:48:00,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 01:48:00,720 WARN L237 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_21708ccc-1f8d-420e-b027-93b12cd434de/sv-benchmarks/c/loop-simple/nested_1b.c[674,687] [2022-12-15 01:48:00,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:48:00,735 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 01:48:00,746 WARN L237 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_21708ccc-1f8d-420e-b027-93b12cd434de/sv-benchmarks/c/loop-simple/nested_1b.c[674,687] [2022-12-15 01:48:00,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:48:00,755 INFO L208 MainTranslator]: Completed translation [2022-12-15 01:48:00,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00 WrapperNode [2022-12-15 01:48:00,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 01:48:00,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 01:48:00,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 01:48:00,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 01:48:00,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,777 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-12-15 01:48:00,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 01:48:00,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 01:48:00,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 01:48:00,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 01:48:00,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,788 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 01:48:00,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 01:48:00,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 01:48:00,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 01:48:00,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:48:00,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 01:48:00,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 01:48:00,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 01:48:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-15 01:48:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 01:48:00,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 01:48:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-15 01:48:00,892 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 01:48:00,894 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 01:48:00,955 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 01:48:00,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 01:48:00,975 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-15 01:48:00,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:48:00 BoogieIcfgContainer [2022-12-15 01:48:00,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 01:48:00,978 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 01:48:00,978 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 01:48:00,986 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 01:48:00,986 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:48:00" (1/1) ... [2022-12-15 01:48:00,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 01:48:01,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:48:01,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2022-12-15 01:48:01,038 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2022-12-15 01:48:01,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-15 01:48:01,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:48:01,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:48:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:48:01,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:48:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:48:01,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2022-12-15 01:48:01,187 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-12-15 01:48:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 01:48:01,187 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:48:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:48:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:48:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:48:01,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:48:01,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2022-12-15 01:48:01,282 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2022-12-15 01:48:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 01:48:01,282 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:48:01,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:48:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:48:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:48:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:48:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2022-12-15 01:48:01,377 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-12-15 01:48:01,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 01:48:01,377 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:48:01,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:48:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:48:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:48:01,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:48:01,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2022-12-15 01:48:01,491 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-12-15 01:48:01,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-15 01:48:01,492 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:48:01,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:48:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:48:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:48:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:48:01,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2022-12-15 01:48:01,598 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-12-15 01:48:01,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 01:48:01,598 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:48:01,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:48:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:48:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:48:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:48:01,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2022-12-15 01:48:01,686 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-15 01:48:01,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-15 01:48:01,686 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:48:01,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:48:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 01:48:01,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 01:48:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 01:48:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 01:48:01,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 01:48:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 01:48:01,738 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2022-12-15 01:48:01,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 01:48:01 ImpRootNode [2022-12-15 01:48:01,760 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 01:48:01,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 01:48:01,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 01:48:01,761 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 01:48:01,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:48:00" (3/4) ... [2022-12-15 01:48:01,763 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-15 01:48:01,793 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 01:48:01,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 01:48:01,794 INFO L158 Benchmark]: Toolchain (without parser) took 1201.13ms. Allocated memory is still 130.0MB. Free memory was 97.4MB in the beginning and 80.0MB in the end (delta: 17.4MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-12-15 01:48:01,795 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:48:01,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.66ms. Allocated memory is still 130.0MB. Free memory was 97.1MB in the beginning and 87.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-15 01:48:01,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.53ms. Allocated memory is still 130.0MB. Free memory was 87.5MB in the beginning and 86.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:48:01,796 INFO L158 Benchmark]: Boogie Preprocessor took 11.81ms. Allocated memory is still 130.0MB. Free memory was 86.1MB in the beginning and 85.2MB in the end (delta: 896.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:48:01,797 INFO L158 Benchmark]: RCFGBuilder took 187.88ms. Allocated memory is still 130.0MB. Free memory was 84.9MB in the beginning and 75.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-15 01:48:01,797 INFO L158 Benchmark]: CodeCheck took 781.70ms. Allocated memory is still 130.0MB. Free memory was 75.7MB in the beginning and 82.1MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:48:01,797 INFO L158 Benchmark]: Witness Printer took 33.32ms. Allocated memory is still 130.0MB. Free memory was 81.5MB in the beginning and 80.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:48:01,800 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 18 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 0/35 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 - CounterExampleResult [Line: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int a = 6; [L19] a = 0 VAL [a=0] [L19] COND TRUE a < 6 [L19] ++a VAL [a=1] [L19] COND TRUE a < 6 [L19] ++a VAL [a=2] [L19] COND TRUE a < 6 [L19] ++a VAL [a=3] [L19] COND TRUE a < 6 [L19] ++a VAL [a=4] [L19] COND TRUE a < 6 [L19] ++a VAL [a=5] [L19] COND TRUE a < 6 [L19] ++a VAL [a=6] [L19] COND FALSE !(a < 6) VAL [a=6] [L22] COND TRUE a == 6 VAL [a=6] [L23] reach_error() VAL [a=6] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.66ms. Allocated memory is still 130.0MB. Free memory was 97.1MB in the beginning and 87.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.53ms. Allocated memory is still 130.0MB. Free memory was 87.5MB in the beginning and 86.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.81ms. Allocated memory is still 130.0MB. Free memory was 86.1MB in the beginning and 85.2MB in the end (delta: 896.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 187.88ms. Allocated memory is still 130.0MB. Free memory was 84.9MB in the beginning and 75.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 781.70ms. Allocated memory is still 130.0MB. Free memory was 75.7MB in the beginning and 82.1MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 33.32ms. Allocated memory is still 130.0MB. Free memory was 81.5MB in the beginning and 80.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-15 01:48:01,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21708ccc-1f8d-420e-b027-93b12cd434de/bin/ukojak-rkRKPMF4O4/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE