./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-new/count_by_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9 --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 32bit --witnessprinter.graph.data.programhash 86d4e5d9ff4808cbd51f54a8e918c7da7f8f3d0797ade1f0adcb3da91d131026 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:39:03,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:39:03,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-03 04:39:03,073 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:39:03,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:39:03,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:39:03,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:39:03,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:39:03,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:39:03,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:39:03,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:39:03,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:39:03,100 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:39:03,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:39:03,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:39:03,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:39:03,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:39:03,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:39:03,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:39:03,103 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 04:39:03,104 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:39:03,105 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:39:03,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:39:03,106 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:39:03,106 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:39:03,106 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:39:03,107 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:39:03,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:39:03,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:39:03,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:39:03,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:39:03,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:39:03,109 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:39:03,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:39:03,110 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:39:03,110 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_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86d4e5d9ff4808cbd51f54a8e918c7da7f8f3d0797ade1f0adcb3da91d131026 [2023-12-03 04:39:03,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:39:03,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:39:03,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:39:03,378 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:39:03,379 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:39:03,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/loop-new/count_by_2.i [2023-12-03 04:39:06,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:39:06,454 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:39:06,455 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/sv-benchmarks/c/loop-new/count_by_2.i [2023-12-03 04:39:06,463 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/data/31452ad35/9988374d0eb14fdfa6da518b4f65c125/FLAG8ac8ee043 [2023-12-03 04:39:06,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/data/31452ad35/9988374d0eb14fdfa6da518b4f65c125 [2023-12-03 04:39:06,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:39:06,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:39:06,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:39:06,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:39:06,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:39:06,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f918d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06, skipping insertion in model container [2023-12-03 04:39:06,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,511 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:39:06,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:39:06,684 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:39:06,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:39:06,716 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:39:06,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06 WrapperNode [2023-12-03 04:39:06,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:39:06,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:39:06,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:39:06,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:39:06,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,749 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 29 [2023-12-03 04:39:06,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:39:06,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:39:06,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:39:06,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:39:06,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:39:06,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:39:06,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:39:06,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:39:06,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:06" (1/1) ... [2023-12-03 04:39:06,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:39:06,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:39:06,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:39:06,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:39:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:39:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:39:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:39:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:39:06,903 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:39:06,905 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:39:06,986 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:39:07,030 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:39:07,030 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 04:39:07,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:39:07 BoogieIcfgContainer [2023-12-03 04:39:07,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:39:07,033 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:39:07,033 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:39:07,041 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:39:07,042 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:39:07" (1/1) ... [2023-12-03 04:39:07,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:39:07,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:39:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-12-03 04:39:07,094 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-12-03 04:39:07,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 04:39:07,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:39:07,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:39:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:39:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:39:07,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:39:07,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-12-03 04:39:07,287 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-12-03 04:39:07,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 04:39:07,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:39:07,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:39:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:39:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:39:07,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:39:07,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-12-03 04:39:07,343 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-12-03 04:39:07,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 04:39:07,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:39:07,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:39:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:39:07,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:39:07,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:39:07,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-03 04:39:07,455 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-03 04:39:07,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:39:07,457 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:39:07,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:39:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:39:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 04:39:07,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:39:07,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2023-12-03 04:39:07,584 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-12-03 04:39:07,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 04:39:07,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:39:07,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:39:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:39:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 04:39:07,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:39:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-12-03 04:39:07,793 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-12-03 04:39:07,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 04:39:07,793 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-12-03 04:39:07,802 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-12-03 04:39:07,869 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2023-12-03 04:39:07,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:39:07 ImpRootNode [2023-12-03 04:39:07,876 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:39:07,877 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:39:07,877 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:39:07,878 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:39:07,878 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:39:07" (3/4) ... [2023-12-03 04:39:07,880 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 04:39:07,887 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-12-03 04:39:07,887 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-03 04:39:07,887 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 04:39:07,887 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 04:39:07,968 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 04:39:07,969 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 04:39:07,969 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:39:07,970 INFO L158 Benchmark]: Toolchain (without parser) took 1486.57ms. Allocated memory is still 159.4MB. Free memory was 115.9MB in the beginning and 118.2MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:39:07,970 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:39:07,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.54ms. Allocated memory is still 159.4MB. Free memory was 115.9MB in the beginning and 105.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 04:39:07,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.56ms. Allocated memory is still 159.4MB. Free memory was 105.4MB in the beginning and 104.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:39:07,971 INFO L158 Benchmark]: Boogie Preprocessor took 18.07ms. Allocated memory is still 159.4MB. Free memory was 104.1MB in the beginning and 103.3MB in the end (delta: 811.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:39:07,972 INFO L158 Benchmark]: RCFGBuilder took 263.34ms. Allocated memory is still 159.4MB. Free memory was 103.3MB in the beginning and 92.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 04:39:07,972 INFO L158 Benchmark]: CodeCheck took 843.47ms. Allocated memory is still 159.4MB. Free memory was 92.2MB in the beginning and 122.4MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:39:07,973 INFO L158 Benchmark]: Witness Printer took 91.79ms. Allocated memory is still 159.4MB. Free memory was 122.4MB in the beginning and 118.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 04:39:07,975 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, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 149 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 0 mSDtfsCounter, 149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 10/12 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (0 <= (i + 2147483648)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.54ms. Allocated memory is still 159.4MB. Free memory was 115.9MB in the beginning and 105.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.56ms. Allocated memory is still 159.4MB. Free memory was 105.4MB in the beginning and 104.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.07ms. Allocated memory is still 159.4MB. Free memory was 104.1MB in the beginning and 103.3MB in the end (delta: 811.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.34ms. Allocated memory is still 159.4MB. Free memory was 103.3MB in the beginning and 92.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 843.47ms. Allocated memory is still 159.4MB. Free memory was 92.2MB in the beginning and 122.4MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 91.79ms. Allocated memory is still 159.4MB. Free memory was 122.4MB in the beginning and 118.2MB 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! [2023-12-03 04:39:07,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56e8a06-e1a6-4809-9d05-3b0256978500/bin/ukojak-verify-Qdu7aM0XO9/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