./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/Flip2.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_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/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_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/Flip2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/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_ef53b83e-ce86-4f51-9712-0ee7d44e1987/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 743a1142650cc90419737e0fcd83ae36167644025e705a99270cea90986dadac --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:40:47,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:40:47,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:40:47,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:40:47,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:40:47,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:40:47,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:40:47,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:40:47,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:40:47,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:40:47,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:40:47,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:40:47,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:40:47,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:40:47,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:40:47,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:40:47,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:40:47,597 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:40:47,598 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:40:47,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:40:47,599 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:40:47,600 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:40:47,601 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:40:47,602 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:40:47,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:40:47,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:47,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:40:47,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:40:47,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:40:47,606 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:40:47,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:40:47,607 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:40:47,607 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_ef53b83e-ce86-4f51-9712-0ee7d44e1987/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 743a1142650cc90419737e0fcd83ae36167644025e705a99270cea90986dadac [2023-11-21 18:40:47,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:40:47,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:40:47,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:40:47,902 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:40:47,903 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:40:47,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-restricted-15/Flip2.c [2023-11-21 18:40:50,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:40:51,198 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:40:51,199 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/sv-benchmarks/c/termination-restricted-15/Flip2.c [2023-11-21 18:40:51,207 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/data/8668f40b5/e3baa05e774145d9a9634fd00c7adb0c/FLAG9506dc97b [2023-11-21 18:40:51,226 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/data/8668f40b5/e3baa05e774145d9a9634fd00c7adb0c [2023-11-21 18:40:51,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:40:51,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:40:51,238 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:51,238 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:40:51,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:40:51,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376fc3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51, skipping insertion in model container [2023-11-21 18:40:51,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,270 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:40:51,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:51,461 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:40:51,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:51,488 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:40:51,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51 WrapperNode [2023-11-21 18:40:51,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:51,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:51,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:40:51,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:40:51,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,521 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-21 18:40:51,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:51,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:40:51,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:40:51,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:40:51,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:40:51,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:40:51,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:40:51,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:40:51,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:51,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:40:51,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:40:51,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:40:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:40:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:40:51,717 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:40:51,720 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:40:51,859 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:40:51,884 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:40:51,885 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:40:51,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:51 BoogieIcfgContainer [2023-11-21 18:40:51,887 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:40:51,888 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:40:51,888 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:40:51,899 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:40:51,899 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:51" (1/1) ... [2023-11-21 18:40:51,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:40:51,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-21 18:40:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-21 18:40:51,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:40:51,968 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:51,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:52,194 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 18:40:52,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-21 18:40:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-21 18:40:52,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:40:52,263 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:52,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:52,345 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 18:40:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:52,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2023-11-21 18:40:52,515 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2023-11-21 18:40:52,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:40:52,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:52,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:52,614 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 18:40:52,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:52,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2023-11-21 18:40:52,839 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2023-11-21 18:40:52,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:40:52,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:52,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:52,903 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:40:52,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:52,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2023-11-21 18:40:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2023-11-21 18:40:52,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:40:52,962 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-21 18:40:52,972 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-21 18:40:53,003 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-11-21 18:40:53,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:40:53 ImpRootNode [2023-11-21 18:40:53,011 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:40:53,012 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:40:53,013 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:40:53,013 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:40:53,014 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:51" (3/4) ... [2023-11-21 18:40:53,017 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:40:53,025 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-21 18:40:53,025 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 18:40:53,025 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 18:40:53,123 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:40:53,123 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:40:53,124 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:40:53,129 INFO L158 Benchmark]: Toolchain (without parser) took 1889.98ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 75.5MB in the beginning and 110.6MB in the end (delta: -35.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-21 18:40:53,129 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 123.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:53,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.41ms. Allocated memory is still 123.7MB. Free memory was 75.4MB in the beginning and 65.7MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:40:53,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.34ms. Allocated memory is still 123.7MB. Free memory was 65.7MB in the beginning and 64.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:40:53,132 INFO L158 Benchmark]: Boogie Preprocessor took 27.50ms. Allocated memory is still 123.7MB. Free memory was 64.4MB in the beginning and 63.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:53,133 INFO L158 Benchmark]: RCFGBuilder took 336.48ms. Allocated memory is still 123.7MB. Free memory was 63.4MB in the beginning and 53.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:40:53,134 INFO L158 Benchmark]: CodeCheck took 1123.77ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 53.5MB in the beginning and 114.8MB in the end (delta: -61.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:53,135 INFO L158 Benchmark]: Witness Printer took 111.29ms. Allocated memory is still 167.8MB. Free memory was 114.8MB in the beginning and 110.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:40:53,139 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 16 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 276 SyntacticMatches, 14 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/11 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: ((i <= 2147483647) && (j <= 2147483647)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 123.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.41ms. Allocated memory is still 123.7MB. Free memory was 75.4MB in the beginning and 65.7MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.34ms. Allocated memory is still 123.7MB. Free memory was 65.7MB in the beginning and 64.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.50ms. Allocated memory is still 123.7MB. Free memory was 64.4MB in the beginning and 63.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.48ms. Allocated memory is still 123.7MB. Free memory was 63.4MB in the beginning and 53.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1123.77ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 53.5MB in the beginning and 114.8MB in the end (delta: -61.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 111.29ms. Allocated memory is still 167.8MB. Free memory was 114.8MB in the beginning and 110.6MB 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 18:40:53,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef53b83e-ce86-4f51-9712-0ee7d44e1987/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