./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Rotation180-1.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_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/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_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/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_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/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 fde09a60595b1ccfdc4082db9307f665f7d9aa8adcf6aa0f827e624d65c22a35 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:35:06,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:35:06,332 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:35:06,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:35:06,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:35:06,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:35:06,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:35:06,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:35:06,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:35:06,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:35:06,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:35:06,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:35:06,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:35:06,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:35:06,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:35:06,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:35:06,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:35:06,375 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:35:06,375 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:35:06,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:35:06,376 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:35:06,377 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:35:06,378 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:35:06,378 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:35:06,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:35:06,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:06,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:35:06,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:35:06,380 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:35:06,381 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:35:06,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:35:06,382 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:35:06,382 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_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fde09a60595b1ccfdc4082db9307f665f7d9aa8adcf6aa0f827e624d65c22a35 [2023-11-21 18:35:06,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:35:06,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:35:06,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:35:06,670 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:35:06,670 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:35:06,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-crafted/Rotation180-1.c [2023-11-21 18:35:10,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:35:10,228 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:35:10,231 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/sv-benchmarks/c/termination-crafted/Rotation180-1.c [2023-11-21 18:35:10,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/data/3f8437c87/c516ba2fe55c4047919e90c5f229cf2e/FLAGb011c04ff [2023-11-21 18:35:10,255 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/data/3f8437c87/c516ba2fe55c4047919e90c5f229cf2e [2023-11-21 18:35:10,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:35:10,260 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:35:10,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:10,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:35:10,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:35:10,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e46bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10, skipping insertion in model container [2023-11-21 18:35:10,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,295 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:35:10,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:10,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:35:10,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:10,507 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:35:10,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10 WrapperNode [2023-11-21 18:35:10,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:10,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:10,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:35:10,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:35:10,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,545 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-11-21 18:35:10,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:10,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:35:10,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:35:10,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:35:10,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:35:10,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:35:10,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:35:10,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:35:10,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:10,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:35:10,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:35:10,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:35:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:35:10,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:35:10,747 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:35:10,750 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:35:10,848 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:35:10,876 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:35:10,876 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:35:10,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:10 BoogieIcfgContainer [2023-11-21 18:35:10,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:35:10,879 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:35:10,879 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:35:10,890 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:35:10,890 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:10" (1/1) ... [2023-11-21 18:35:10,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:35:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-11-21 18:35:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-11-21 18:35:10,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:35:10,955 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:10,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:11,131 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 18:35:11,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:11,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-21 18:35:11,192 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-21 18:35:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:35:11,193 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:11,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:11,252 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 18:35:11,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-21 18:35:11,365 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-21 18:35:11,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:35:11,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:11,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:11,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:35:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:11,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-21 18:35:11,985 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-21 18:35:11,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:35:11,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:11,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:35:12,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:12,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2023-11-21 18:35:12,899 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-21 18:35:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:35:12,901 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:12,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:13,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:35:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-21 18:35:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-21 18:35:13,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:35:13,230 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-21 18:35:13,242 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-21 18:35:13,284 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:35:13,289 INFO L560 CodeCheckObserver]: Invariant with dag size 12 [2023-11-21 18:35:13,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:35:13 ImpRootNode [2023-11-21 18:35:13,299 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:35:13,299 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:35:13,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:35:13,300 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:35:13,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:10" (3/4) ... [2023-11-21 18:35:13,306 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:35:13,317 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-21 18:35:13,317 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 18:35:13,317 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 18:35:13,431 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:35:13,431 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:35:13,431 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:35:13,432 INFO L158 Benchmark]: Toolchain (without parser) took 3171.64ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 78.5MB in the beginning and 126.7MB in the end (delta: -48.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:13,433 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory was 101.0MB in the beginning and 101.0MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:13,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.62ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 78.1MB in the beginning and 149.4MB in the end (delta: -71.3MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-21 18:35:13,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.12ms. Allocated memory is still 178.3MB. Free memory was 149.3MB in the beginning and 148.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:35:13,434 INFO L158 Benchmark]: Boogie Preprocessor took 21.38ms. Allocated memory is still 178.3MB. Free memory was 148.0MB in the beginning and 147.0MB in the end (delta: 975.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:13,435 INFO L158 Benchmark]: RCFGBuilder took 309.98ms. Allocated memory is still 178.3MB. Free memory was 147.0MB in the beginning and 140.7MB in the end (delta: 6.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-11-21 18:35:13,435 INFO L158 Benchmark]: CodeCheck took 2419.51ms. Allocated memory is still 178.3MB. Free memory was 140.7MB in the beginning and 130.9MB in the end (delta: 9.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-21 18:35:13,436 INFO L158 Benchmark]: Witness Printer took 131.77ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 126.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:35:13,439 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 30 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 318 GetRequests, 253 SyntacticMatches, 17 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/14 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((x <= 2147483647) && (0 <= (2147483647 + x))) && (0 < (y + 2147483648))) && (y <= 2147483647)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory was 101.0MB in the beginning and 101.0MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.62ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 78.1MB in the beginning and 149.4MB in the end (delta: -71.3MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.12ms. Allocated memory is still 178.3MB. Free memory was 149.3MB in the beginning and 148.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.38ms. Allocated memory is still 178.3MB. Free memory was 148.0MB in the beginning and 147.0MB in the end (delta: 975.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.98ms. Allocated memory is still 178.3MB. Free memory was 147.0MB in the beginning and 140.7MB in the end (delta: 6.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * CodeCheck took 2419.51ms. Allocated memory is still 178.3MB. Free memory was 140.7MB in the beginning and 130.9MB in the end (delta: 9.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 131.77ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 126.7MB 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! [2023-11-21 18:35:13,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88fa57e3-f2e2-4ec1-8d33-d743e5aa8f73/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE