./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --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 b89d5a1db28cdbe10153d7e75038bff16b1343640a8d05a90f6e5bdf82eae94a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:03:25,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:03:25,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-12 00:03:25,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:03:25,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:03:25,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:03:25,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:03:25,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:03:25,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:03:25,739 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:03:25,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:03:25,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:03:25,741 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:03:25,741 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:03:25,742 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:03:25,742 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:03:25,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:03:25,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:03:25,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:03:25,744 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:03:25,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:03:25,753 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:03:25,754 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:03:25,754 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:03:25,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:03:25,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:03:25,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:03:25,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:03:25,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:03:25,757 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:03:25,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:03:25,759 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:03:25,759 INFO L153 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_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b89d5a1db28cdbe10153d7e75038bff16b1343640a8d05a90f6e5bdf82eae94a [2023-11-12 00:03:26,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:03:26,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:03:26,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:03:26,078 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:03:26,078 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:03:26,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2023-11-12 00:03:29,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:03:29,635 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:03:29,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2023-11-12 00:03:29,646 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/data/d6ac2f6b9/654d54dc9e644d4c8ef3dbb79e7ddde7/FLAG427fac0a7 [2023-11-12 00:03:29,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/data/d6ac2f6b9/654d54dc9e644d4c8ef3dbb79e7ddde7 [2023-11-12 00:03:29,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:03:29,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:03:29,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:03:29,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:03:29,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:03:29,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:29,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ab43224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29, skipping insertion in model container [2023-11-12 00:03:29,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:29,723 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:03:29,904 WARN L240 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_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2023-11-12 00:03:29,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:03:29,933 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:03:29,948 WARN L240 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_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2023-11-12 00:03:29,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:03:29,979 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:03:29,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29 WrapperNode [2023-11-12 00:03:29,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:03:29,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:03:29,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:03:29,981 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:03:29,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:29,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,029 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2023-11-12 00:03:30,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:03:30,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:03:30,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:03:30,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:03:30,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:03:30,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:03:30,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:03:30,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:03:30,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:29" (1/1) ... [2023-11-12 00:03:30,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:03:30,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:03:30,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:03:30,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:03:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:03:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:03:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:03:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:03:30,241 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:03:30,243 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:03:30,426 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:03:30,478 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:03:30,479 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-12 00:03:30,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:30 BoogieIcfgContainer [2023-11-12 00:03:30,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:03:30,483 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:03:30,483 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:03:30,494 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:03:30,495 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:30" (1/1) ... [2023-11-12 00:03:30,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:03:30,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:30,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 11 states and 16 transitions. [2023-11-12 00:03:30,558 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2023-11-12 00:03:30,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:03:30,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:30,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:31,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:31,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-11-12 00:03:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-11-12 00:03:31,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:03:31,026 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:31,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:31,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2023-11-12 00:03:31,367 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2023-11-12 00:03:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:03:31,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:31,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:31,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:31,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-12 00:03:31,664 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-12 00:03:31,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:03:31,664 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:31,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:31,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2023-11-12 00:03:31,945 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-11-12 00:03:31,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:03:31,946 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:31,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2023-11-12 00:03:32,261 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-11-12 00:03:32,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:03:32,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:32,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-12 00:03:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-12 00:03:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:03:32,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:32,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:32,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-12 00:03:32,926 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-12 00:03:32,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:03:32,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:32,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:33,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-11-12 00:03:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-12 00:03:33,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:03:33,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:33,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:33,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:33,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-11-12 00:03:33,598 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-11-12 00:03:33,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:03:33,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:33,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:33,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:33,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-11-12 00:03:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-12 00:03:33,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:03:33,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:33,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:34,258 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:34,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:34,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-12 00:03:34,472 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-12 00:03:34,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:03:34,473 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-11-12 00:03:34,484 INFO L753 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-12 00:03:34,617 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:03:34,622 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:03:34,622 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:03:34,622 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:03:34,622 INFO L560 CodeCheckObserver]: Invariant with dag size 46 [2023-11-12 00:03:34,631 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:03:34,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:03:34 ImpRootNode [2023-11-12 00:03:34,632 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:03:34,633 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:03:34,633 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:03:34,633 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:03:34,634 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:30" (3/4) ... [2023-11-12 00:03:34,637 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:03:34,645 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-12 00:03:34,646 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 00:03:34,646 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:03:34,646 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:03:34,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-12 00:03:34,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-12 00:03:34,745 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:03:34,746 INFO L158 Benchmark]: Toolchain (without parser) took 5068.25ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 108.6MB in the beginning and 126.2MB in the end (delta: -17.6MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-11-12 00:03:34,747 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:03:34,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.93ms. Allocated memory is still 138.4MB. Free memory was 108.3MB in the beginning and 98.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:03:34,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.56ms. Allocated memory is still 138.4MB. Free memory was 98.0MB in the beginning and 96.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:03:34,748 INFO L158 Benchmark]: Boogie Preprocessor took 45.18ms. Allocated memory is still 138.4MB. Free memory was 96.4MB in the beginning and 95.4MB in the end (delta: 985.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:03:34,749 INFO L158 Benchmark]: RCFGBuilder took 405.88ms. Allocated memory is still 138.4MB. Free memory was 95.1MB in the beginning and 83.2MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:03:34,749 INFO L158 Benchmark]: CodeCheck took 4149.36ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 83.1MB in the beginning and 130.4MB in the end (delta: -47.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:03:34,749 INFO L158 Benchmark]: Witness Printer took 112.58ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 126.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:03:34,752 INFO L338 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 263 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 266 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 336 IncrementalHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 266 mSolverCounterUnsat, 77 mSDtfsCounter, 336 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1060 GetRequests, 926 SyntacticMatches, 90 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1751 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 566 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/220 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: 7]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((7 < v) && (v <= 8)) || ((4 < v) && (v <= 5))) || ((3 < v) && (v <= 4))) || ((v <= 9) && (8 < v))) || ((v <= 2) && (1 < v))) || ((v <= 7) && (6 < v))) || ((0 <= (v / 4294967296)) && (v <= 1))) || ((v <= 6) && (5 < v))) || ((2 < v) && (v <= 3))) || (((v / 4) <= 2) && (10 <= v))) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.93ms. Allocated memory is still 138.4MB. Free memory was 108.3MB in the beginning and 98.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.56ms. Allocated memory is still 138.4MB. Free memory was 98.0MB in the beginning and 96.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.18ms. Allocated memory is still 138.4MB. Free memory was 96.4MB in the beginning and 95.4MB in the end (delta: 985.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.88ms. Allocated memory is still 138.4MB. Free memory was 95.1MB in the beginning and 83.2MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 4149.36ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 83.1MB in the beginning and 130.4MB in the end (delta: -47.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 112.58ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 126.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-12 00:03:34,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e13c16-0d8d-4b2c-a1b3-c97f4a469e83/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE