./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2 --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 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:36:08,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:36:08,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:36:08,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:36:08,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:36:08,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:36:08,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:36:08,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:36:08,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:36:08,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:36:08,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:36:08,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:36:08,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:36:08,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:36:08,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:36:08,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:36:08,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:36:08,781 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:36:08,781 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:36:08,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:36:08,782 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:36:08,784 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:36:08,785 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:36:08,785 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:36:08,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:36:08,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:36:08,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:36:08,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:36:08,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:36:08,788 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:36:08,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:36:08,790 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:36:08,790 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_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2023-11-21 18:36:09,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:36:09,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:36:09,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:36:09,142 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:36:09,142 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:36:09,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2023-11-21 18:36:12,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:36:12,644 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:36:12,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2023-11-21 18:36:12,654 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/data/793f04c6c/651459abb6854661bc2735002748cc16/FLAGd07927ddc [2023-11-21 18:36:12,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/data/793f04c6c/651459abb6854661bc2735002748cc16 [2023-11-21 18:36:12,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:36:12,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:36:12,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:36:12,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:36:12,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:36:12,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:12,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c13b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12, skipping insertion in model container [2023-11-21 18:36:12,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:12,712 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:36:12,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:36:12,944 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:36:12,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:36:12,972 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:36:12,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12 WrapperNode [2023-11-21 18:36:12,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:36:12,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:36:12,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:36:12,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:36:12,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:12,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,012 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-11-21 18:36:13,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:36:13,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:36:13,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:36:13,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:36:13,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:36:13,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:36:13,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:36:13,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:36:13,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:12" (1/1) ... [2023-11-21 18:36:13,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:36:13,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:36:13,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:36:13,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:36:13,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:36:13,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:36:13,247 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:36:13,250 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:36:13,482 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:36:13,539 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:36:13,540 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:36:13,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:13 BoogieIcfgContainer [2023-11-21 18:36:13,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:36:13,546 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:36:13,547 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:36:13,560 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:36:13,562 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:13" (1/1) ... [2023-11-21 18:36:13,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:36:13,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-21 18:36:13,668 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-21 18:36:13,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:36:13,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:13,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:13,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:14,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:14,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2023-11-21 18:36:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-21 18:36:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:36:14,016 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:14,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:14,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:14,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2023-11-21 18:36:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-21 18:36:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:36:14,223 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:14,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:14,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:14,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2023-11-21 18:36:14,365 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-21 18:36:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:36:14,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:14,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:14,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:14,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:14,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2023-11-21 18:36:14,491 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-21 18:36:14,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:36:14,491 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:14,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:14,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:14,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2023-11-21 18:36:14,797 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2023-11-21 18:36:14,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:36:14,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:14,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:15,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2023-11-21 18:36:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2023-11-21 18:36:15,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:36:15,134 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:15,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 33 states and 45 transitions. [2023-11-21 18:36:15,205 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2023-11-21 18:36:15,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:36:15,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:15,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:15,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:15,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 49 transitions. [2023-11-21 18:36:15,286 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2023-11-21 18:36:15,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:36:15,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:15,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:15,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:15,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:15,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2023-11-21 18:36:15,434 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-11-21 18:36:15,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:36:15,437 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2023-11-21 18:36:15,450 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-21 18:36:15,638 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-21 18:36:15,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:36:15 ImpRootNode [2023-11-21 18:36:15,647 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:36:15,648 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:36:15,648 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:36:15,649 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:36:15,649 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:13" (3/4) ... [2023-11-21 18:36:15,652 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:36:15,660 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-21 18:36:15,661 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 18:36:15,661 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 18:36:15,766 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:36:15,767 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:36:15,767 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:36:15,768 INFO L158 Benchmark]: Toolchain (without parser) took 3091.11ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 93.5MB in the beginning and 101.9MB in the end (delta: -8.4MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2023-11-21 18:36:15,768 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 136.3MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:36:15,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.87ms. Allocated memory is still 136.3MB. Free memory was 93.3MB in the beginning and 84.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:36:15,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.57ms. Allocated memory is still 136.3MB. Free memory was 84.0MB in the beginning and 82.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:36:15,770 INFO L158 Benchmark]: Boogie Preprocessor took 25.39ms. Allocated memory is still 136.3MB. Free memory was 82.3MB in the beginning and 81.4MB in the end (delta: 980.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:36:15,771 INFO L158 Benchmark]: RCFGBuilder took 505.25ms. Allocated memory is still 136.3MB. Free memory was 81.4MB in the beginning and 70.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:36:15,772 INFO L158 Benchmark]: CodeCheck took 2101.67ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 70.5MB in the beginning and 106.4MB in the end (delta: -35.9MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-21 18:36:15,772 INFO L158 Benchmark]: Witness Printer took 118.98ms. Allocated memory is still 184.5MB. Free memory was 106.4MB in the beginning and 101.9MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:36:15,775 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, 24 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 295 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 241 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 587 IncrementalHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 117 mSolverCounterUnsat, 79 mSDtfsCounter, 587 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 477 GetRequests, 431 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 2/2 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (x <= 2147483647) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 136.3MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.87ms. Allocated memory is still 136.3MB. Free memory was 93.3MB in the beginning and 84.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.57ms. Allocated memory is still 136.3MB. Free memory was 84.0MB in the beginning and 82.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.39ms. Allocated memory is still 136.3MB. Free memory was 82.3MB in the beginning and 81.4MB in the end (delta: 980.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 505.25ms. Allocated memory is still 136.3MB. Free memory was 81.4MB in the beginning and 70.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2101.67ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 70.5MB in the beginning and 106.4MB in the end (delta: -35.9MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Witness Printer took 118.98ms. Allocated memory is still 184.5MB. Free memory was 106.4MB in the beginning and 101.9MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:36:15,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398c7a8a-417b-4be0-9cbb-4ecc95d2521d/bin/ukojak-verify-i0I2FZA1j2/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