./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/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_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/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_e718a791-1f3f-459f-82fc-1428e7e41db1/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 07f4699c371f295a25887a3f67dc54332a57ae32b5b342f10fdc7ddcf36f265e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:39:22,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:39:22,164 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:39:22,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:39:22,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:39:22,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:39:22,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:39:22,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:39:22,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:39:22,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:39:22,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:39:22,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:39:22,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:39:22,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:39:22,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:39:22,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:39:22,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:39:22,229 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:39:22,229 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:39:22,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:39:22,230 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:39:22,231 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:39:22,231 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:39:22,232 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:39:22,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:39:22,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:39:22,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:39:22,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:39:22,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:39:22,234 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:39:22,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:39:22,235 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:39:22,236 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_e718a791-1f3f-459f-82fc-1428e7e41db1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07f4699c371f295a25887a3f67dc54332a57ae32b5b342f10fdc7ddcf36f265e [2023-11-21 18:39:22,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:39:22,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:39:22,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:39:22,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:39:22,557 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:39:22,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-restricted-15/PastaB14.c [2023-11-21 18:39:25,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:39:26,051 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:39:26,052 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/sv-benchmarks/c/termination-restricted-15/PastaB14.c [2023-11-21 18:39:26,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/data/071a5060b/4b02f16e7ca24d14bae7059224539d96/FLAGbac1f74ea [2023-11-21 18:39:26,080 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/data/071a5060b/4b02f16e7ca24d14bae7059224539d96 [2023-11-21 18:39:26,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:39:26,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:39:26,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:39:26,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:39:26,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:39:26,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae3a451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26, skipping insertion in model container [2023-11-21 18:39:26,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,123 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:39:26,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:39:26,289 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:39:26,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:39:26,320 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:39:26,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26 WrapperNode [2023-11-21 18:39:26,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:39:26,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:39:26,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:39:26,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:39:26,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,354 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2023-11-21 18:39:26,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:39:26,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:39:26,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:39:26,356 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:39:26,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:39:26,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:39:26,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:39:26,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:39:26,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:39:26,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:39:26,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:39:26,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:39:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:39:26,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:39:26,551 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:39:26,553 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:39:26,647 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:39:26,676 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:39:26,676 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:39:26,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:39:26 BoogieIcfgContainer [2023-11-21 18:39:26,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:39:26,679 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:39:26,680 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:39:26,690 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:39:26,691 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:39:26" (1/1) ... [2023-11-21 18:39:26,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:39:26,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:26,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-21 18:39:26,780 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-21 18:39:26,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:39:26,782 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:26,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:27,009 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 18:39:27,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2023-11-21 18:39:27,072 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-11-21 18:39:27,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:39:27,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:27,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:27,159 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 18:39:27,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:27,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-11-21 18:39:27,244 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-21 18:39:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:39:27,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:27,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:27,285 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 18:39:27,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:27,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2023-11-21 18:39:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2023-11-21 18:39:27,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:39:27,462 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:27,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:27,536 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 18:39:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2023-11-21 18:39:27,942 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2023-11-21 18:39:27,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:39:27,943 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:27,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:28,035 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 18:39:28,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:28,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 28 states and 45 transitions. [2023-11-21 18:39:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 45 transitions. [2023-11-21 18:39:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:39:28,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:28,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:39:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:28,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2023-11-21 18:39:28,632 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2023-11-21 18:39:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:39:28,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:28,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:39:28,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:28,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2023-11-21 18:39:28,791 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2023-11-21 18:39:28,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:39:28,792 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:28,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:28,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:39:29,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:29,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2023-11-21 18:39:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2023-11-21 18:39:29,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:39:29,116 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:29,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:39:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:29,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-21 18:39:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-21 18:39:29,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:39:29,831 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2023-11-21 18:39:29,840 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-21 18:39:29,879 INFO L560 CodeCheckObserver]: Invariant with dag size 14 [2023-11-21 18:39:29,887 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-11-21 18:39:29,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:39:29 ImpRootNode [2023-11-21 18:39:29,888 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:39:29,888 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:39:29,888 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:39:29,889 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:39:29,889 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:39:26" (3/4) ... [2023-11-21 18:39:29,891 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:39:29,898 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-21 18:39:29,898 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 18:39:29,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 18:39:29,983 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:39:29,984 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:39:29,984 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:39:29,985 INFO L158 Benchmark]: Toolchain (without parser) took 3896.72ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 69.5MB in the end (delta: 57.3MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2023-11-21 18:39:29,985 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:39:29,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.94ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 116.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:39:29,986 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.70ms. Allocated memory is still 157.3MB. Free memory was 116.9MB in the beginning and 115.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:39:29,987 INFO L158 Benchmark]: Boogie Preprocessor took 25.88ms. Allocated memory is still 157.3MB. Free memory was 115.8MB in the beginning and 114.9MB in the end (delta: 987.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:39:29,987 INFO L158 Benchmark]: RCFGBuilder took 296.16ms. Allocated memory is still 157.3MB. Free memory was 114.9MB in the beginning and 105.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 18:39:29,988 INFO L158 Benchmark]: CodeCheck took 3208.41ms. Allocated memory is still 157.3MB. Free memory was 105.0MB in the beginning and 73.5MB in the end (delta: 31.5MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2023-11-21 18:39:29,988 INFO L158 Benchmark]: Witness Printer took 95.81ms. Allocated memory is still 157.3MB. Free memory was 73.5MB in the beginning and 69.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:39:29,991 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 276 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 837 IncrementalHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 136 mSolverCounterUnsat, 27 mSDtfsCounter, 837 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 729 GetRequests, 611 SyntacticMatches, 34 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3480 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 13/23 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: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: ((((x < 1) && (0 <= x)) && (y < 1)) || (((x <= 2147483647) && (y <= x)) && (1 <= x))) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((x <= 2147483647) && (y <= 2147483647)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.94ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 116.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.70ms. Allocated memory is still 157.3MB. Free memory was 116.9MB in the beginning and 115.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.88ms. Allocated memory is still 157.3MB. Free memory was 115.8MB in the beginning and 114.9MB in the end (delta: 987.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 296.16ms. Allocated memory is still 157.3MB. Free memory was 114.9MB in the beginning and 105.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 3208.41ms. Allocated memory is still 157.3MB. Free memory was 105.0MB in the beginning and 73.5MB in the end (delta: 31.5MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * Witness Printer took 95.81ms. Allocated memory is still 157.3MB. Free memory was 73.5MB in the beginning and 69.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:39:30,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e718a791-1f3f-459f-82fc-1428e7e41db1/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