./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbf8943cb9f9a3b213e9817cc53efcf4d89e0e525f47b2351825c8c29bc65e71 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:10:56,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:10:56,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 03:10:56,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:10:56,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:10:57,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:10:57,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:10:57,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:10:57,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:10:57,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:10:57,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:10:57,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:10:57,057 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:10:57,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:10:57,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:10:57,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:10:57,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:10:57,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:10:57,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:10:57,070 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:10:57,070 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:10:57,071 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:10:57,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:10:57,072 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:10:57,072 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:10:57,073 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:10:57,073 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:10:57,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:10:57,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:10:57,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:10:57,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:10:57,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:10:57,079 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:10:57,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:10:57,079 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:10:57,080 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_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbf8943cb9f9a3b213e9817cc53efcf4d89e0e525f47b2351825c8c29bc65e71 [2023-11-19 03:10:57,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:10:57,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:10:57,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:10:57,476 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:10:57,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:10:57,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-industry-pattern/ofuf_5.c [2023-11-19 03:11:00,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:11:00,918 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:11:00,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/sv-benchmarks/c/loop-industry-pattern/ofuf_5.c [2023-11-19 03:11:00,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/data/db0087b6e/cfaad4735ae149e8af35082a1d1ff2c6/FLAG694fbc39b [2023-11-19 03:11:00,949 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/data/db0087b6e/cfaad4735ae149e8af35082a1d1ff2c6 [2023-11-19 03:11:00,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:11:00,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:11:00,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:00,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:11:00,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:11:00,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:00" (1/1) ... [2023-11-19 03:11:00,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3caa6e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:00, skipping insertion in model container [2023-11-19 03:11:00,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:00" (1/1) ... [2023-11-19 03:11:01,003 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:11:01,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:01,270 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:11:01,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:01,398 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:01,410 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:11:01,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01 WrapperNode [2023-11-19 03:11:01,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:01,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:01,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:11:01,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:11:01,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,490 INFO L138 Inliner]: procedures = 29, calls = 159, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 459 [2023-11-19 03:11:01,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:01,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:11:01,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:11:01,492 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:11:01,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:11:01,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:11:01,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:11:01,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:11:01,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:01" (1/1) ... [2023-11-19 03:11:01,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:11:01,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:11:01,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:11:01,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:11:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 03:11:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:11:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2023-11-19 03:11:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2023-11-19 03:11:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 03:11:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:11:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:11:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:11:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 03:11:01,661 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 03:11:01,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:11:01,661 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2023-11-19 03:11:01,662 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2023-11-19 03:11:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:11:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:11:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:11:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2023-11-19 03:11:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2023-11-19 03:11:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:11:01,848 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:11:01,850 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:11:02,524 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:11:02,796 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:11:02,796 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-19 03:11:02,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:02 BoogieIcfgContainer [2023-11-19 03:11:02,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:11:02,803 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:11:02,803 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:11:02,813 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:11:02,814 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:02" (1/1) ... [2023-11-19 03:11:02,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:11:02,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 65 states and 95 transitions. [2023-11-19 03:11:02,902 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 95 transitions. [2023-11-19 03:11:02,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:11:02,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:02,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:11:03,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 64 states and 94 transitions. [2023-11-19 03:11:03,257 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 94 transitions. [2023-11-19 03:11:03,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:11:03,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:03,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:11:03,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:03,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 63 states and 93 transitions. [2023-11-19 03:11:03,380 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 93 transitions. [2023-11-19 03:11:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:11:03,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:03,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:11:03,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:03,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 65 states and 98 transitions. [2023-11-19 03:11:03,701 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 98 transitions. [2023-11-19 03:11:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:11:03,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:03,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:04,074 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:11:04,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:04,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 70 states and 114 transitions. [2023-11-19 03:11:04,745 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 114 transitions. [2023-11-19 03:11:04,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:11:04,747 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-19 03:11:04,757 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 03:11:04,856 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,861 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,861 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,862 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,862 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,862 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,862 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,862 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,863 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,863 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,864 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,864 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,864 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,865 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:04,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:11:04 ImpRootNode [2023-11-19 03:11:04,866 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:11:04,866 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:11:04,866 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:11:04,867 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:11:04,867 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:02" (3/4) ... [2023-11-19 03:11:04,870 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:11:04,874 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2023-11-19 03:11:04,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2023-11-19 03:11:04,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2023-11-19 03:11:04,902 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 90 nodes and edges [2023-11-19 03:11:04,904 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-19 03:11:04,906 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 03:11:04,908 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:11:04,910 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:11:04,912 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:11:05,125 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:11:05,125 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:11:05,126 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:11:05,127 INFO L158 Benchmark]: Toolchain (without parser) took 4173.34ms. Allocated memory is still 184.5MB. Free memory was 152.8MB in the beginning and 69.6MB in the end (delta: 83.2MB). Peak memory consumption was 86.3MB. Max. memory is 16.1GB. [2023-11-19 03:11:05,127 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:11:05,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.31ms. Allocated memory is still 184.5MB. Free memory was 152.2MB in the beginning and 134.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:11:05,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.30ms. Allocated memory is still 184.5MB. Free memory was 134.8MB in the beginning and 131.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:11:05,128 INFO L158 Benchmark]: Boogie Preprocessor took 62.01ms. Allocated memory is still 184.5MB. Free memory was 131.2MB in the beginning and 128.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:11:05,129 INFO L158 Benchmark]: RCFGBuilder took 1248.31ms. Allocated memory is still 184.5MB. Free memory was 128.0MB in the beginning and 122.9MB in the end (delta: 5.1MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2023-11-19 03:11:05,129 INFO L158 Benchmark]: CodeCheck took 2062.73ms. Allocated memory is still 184.5MB. Free memory was 122.9MB in the beginning and 80.1MB in the end (delta: 42.8MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2023-11-19 03:11:05,130 INFO L158 Benchmark]: Witness Printer took 259.40ms. Allocated memory is still 184.5MB. Free memory was 80.1MB in the beginning and 69.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:11:05,133 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 4 procedures, 65 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 97 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 431 GetRequests, 376 SyntacticMatches, 43 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 14/24 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: 354]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 354]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 378]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 378]: 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: 249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 417]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.31ms. Allocated memory is still 184.5MB. Free memory was 152.2MB in the beginning and 134.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.30ms. Allocated memory is still 184.5MB. Free memory was 134.8MB in the beginning and 131.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.01ms. Allocated memory is still 184.5MB. Free memory was 131.2MB in the beginning and 128.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1248.31ms. Allocated memory is still 184.5MB. Free memory was 128.0MB in the beginning and 122.9MB in the end (delta: 5.1MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. * CodeCheck took 2062.73ms. Allocated memory is still 184.5MB. Free memory was 122.9MB in the beginning and 80.1MB in the end (delta: 42.8MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * Witness Printer took 259.40ms. Allocated memory is still 184.5MB. Free memory was 80.1MB in the beginning and 69.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:11:05,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee808-1ce0-4e21-a0b9-f945f23aa6e6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE