./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/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_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 46affb860f1d0d7b6656a3074088d89f6e139022ec85b08907ba16419f351bb9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:51:14,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:51:15,026 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:51:15,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:51:15,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:51:15,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:51:15,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:51:15,069 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:51:15,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:51:15,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:51:15,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:51:15,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:51:15,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:51:15,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:51:15,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:51:15,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:51:15,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:51:15,074 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:51:15,075 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:51:15,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:51:15,076 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:51:15,077 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:51:15,077 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:51:15,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:51:15,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:51:15,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:51:15,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:51:15,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:51:15,080 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:51:15,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:51:15,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:51:15,082 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_0f45b6d2-0b0f-42b1-a943-1678666771ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46affb860f1d0d7b6656a3074088d89f6e139022ec85b08907ba16419f351bb9 [2023-11-11 23:51:15,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:51:15,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:51:15,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:51:15,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:51:15,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:51:15,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2023-11-11 23:51:18,443 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:51:18,703 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:51:18,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2023-11-11 23:51:18,712 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/data/085bec998/c422897584f74237861ebd1e28c1b4c8/FLAG1cdd26a52 [2023-11-11 23:51:18,732 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/data/085bec998/c422897584f74237861ebd1e28c1b4c8 [2023-11-11 23:51:18,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:51:18,743 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:51:18,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:51:18,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:51:18,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:51:18,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:18" (1/1) ... [2023-11-11 23:51:18,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b507f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:18, skipping insertion in model container [2023-11-11 23:51:18,757 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:18" (1/1) ... [2023-11-11 23:51:18,780 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:51:18,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:51:18,989 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:51:19,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:51:19,014 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:51:19,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19 WrapperNode [2023-11-11 23:51:19,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:51:19,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:51:19,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:51:19,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:51:19,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,040 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-11 23:51:19,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:51:19,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:51:19,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:51:19,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:51:19,050 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:51:19,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:51:19,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:51:19,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:51:19,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:51:19,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:51:19,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:51:19,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:51:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure binary_search [2023-11-11 23:51:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure binary_search [2023-11-11 23:51:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:51:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:51:19,223 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:51:19,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:51:19,458 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:51:19,470 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:51:19,470 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:51:19,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:19 BoogieIcfgContainer [2023-11-11 23:51:19,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:51:19,474 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:51:19,474 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:51:19,485 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:51:19,486 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:19" (1/1) ... [2023-11-11 23:51:19,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:51:19,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-11 23:51:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-11 23:51:19,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:51:19,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:19,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:19,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:20,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:20,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 31 states and 40 transitions. [2023-11-11 23:51:20,068 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2023-11-11 23:51:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:51:20,068 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:20,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:20,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:20,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:20,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 49 transitions. [2023-11-11 23:51:20,719 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2023-11-11 23:51:20,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:51:20,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:20,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:20,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 51 transitions. [2023-11-11 23:51:20,894 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2023-11-11 23:51:20,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:51:20,899 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:20,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:21,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:21,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 39 states and 54 transitions. [2023-11-11 23:51:21,230 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2023-11-11 23:51:21,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:51:21,232 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:21,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 42 states and 60 transitions. [2023-11-11 23:51:21,695 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2023-11-11 23:51:21,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:51:21,696 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:21,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:22,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 46 states and 65 transitions. [2023-11-11 23:51:22,129 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2023-11-11 23:51:22,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:51:22,130 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:22,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:51:22,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:22,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 52 states and 77 transitions. [2023-11-11 23:51:22,705 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2023-11-11 23:51:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:51:22,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:22,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:22,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:51:23,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:23,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 55 states and 82 transitions. [2023-11-11 23:51:23,159 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2023-11-11 23:51:23,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-11 23:51:23,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:23,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:23,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:23,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 57 states and 86 transitions. [2023-11-11 23:51:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 86 transitions. [2023-11-11 23:51:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-11 23:51:23,535 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:23,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:51:24,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 27 transitions. [2023-11-11 23:51:24,468 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-11 23:51:24,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:51:24,469 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-11 23:51:24,479 INFO L753 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-11 23:51:24,562 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:51:24,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:51:24 ImpRootNode [2023-11-11 23:51:24,567 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:51:24,567 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:51:24,567 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:51:24,567 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:51:24,568 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:19" (3/4) ... [2023-11-11 23:51:24,570 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:51:24,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure binary_search [2023-11-11 23:51:24,578 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-11 23:51:24,578 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-11 23:51:24,578 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-11 23:51:24,658 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:51:24,658 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:51:24,659 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:51:24,659 INFO L158 Benchmark]: Toolchain (without parser) took 5918.14ms. Allocated memory is still 172.0MB. Free memory was 142.1MB in the beginning and 94.8MB in the end (delta: 47.3MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2023-11-11 23:51:24,660 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory was 97.0MB in the beginning and 96.9MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:51:24,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.44ms. Allocated memory is still 172.0MB. Free memory was 142.1MB in the beginning and 137.9MB in the end (delta: 4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-11 23:51:24,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.52ms. Allocated memory is still 172.0MB. Free memory was 137.9MB in the beginning and 136.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:51:24,661 INFO L158 Benchmark]: Boogie Preprocessor took 17.97ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 136.0MB in the end (delta: 965.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:51:24,662 INFO L158 Benchmark]: RCFGBuilder took 413.33ms. Allocated memory is still 172.0MB. Free memory was 136.0MB in the beginning and 124.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-11 23:51:24,662 INFO L158 Benchmark]: CodeCheck took 5092.48ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 99.0MB in the end (delta: 24.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2023-11-11 23:51:24,663 INFO L158 Benchmark]: Witness Printer took 91.66ms. Allocated memory is still 172.0MB. Free memory was 99.0MB in the beginning and 94.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:51:24,665 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 2 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 367 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 281 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 216 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1019 IncrementalHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 216 mSolverCounterUnsat, 180 mSDtfsCounter, 1019 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1123 GetRequests, 970 SyntacticMatches, 63 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2729 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 473 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 9/14 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: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory was 97.0MB in the beginning and 96.9MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.44ms. Allocated memory is still 172.0MB. Free memory was 142.1MB in the beginning and 137.9MB in the end (delta: 4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.52ms. Allocated memory is still 172.0MB. Free memory was 137.9MB in the beginning and 136.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.97ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 136.0MB in the end (delta: 965.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.33ms. Allocated memory is still 172.0MB. Free memory was 136.0MB in the beginning and 124.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 5092.48ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 99.0MB in the end (delta: 24.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Witness Printer took 91.66ms. Allocated memory is still 172.0MB. Free memory was 99.0MB in the beginning and 94.8MB 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! [2023-11-11 23:51:24,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f45b6d2-0b0f-42b1-a943-1678666771ea/bin/ukojak-verify-0OAaufAVZV/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