./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 298a2fa3454ac9d826b4a2fcda5c49527e83e26e7b8633f156b47d33577c1902 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:24:34,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:24:34,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 23:24:34,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:24:34,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 23:24:34,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:24:34,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:24:34,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:24:34,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:24:34,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:24:34,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:24:34,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:24:34,685 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:24:34,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:24:34,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:24:34,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:24:34,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:24:34,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:24:34,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:24:34,685 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:24:34,686 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:24:34,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:24:34,686 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:24:34,686 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:24:34,686 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:24:34,686 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:24:34,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:24:34,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:24:34,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:24:34,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:24:34,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:24:34,687 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 23:24:34,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:24:34,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm 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 ! call(reach_error())) ) 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 -> 298a2fa3454ac9d826b4a2fcda5c49527e83e26e7b8633f156b47d33577c1902 [2024-11-13 23:24:35,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:24:35,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:24:35,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:24:35,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:24:35,042 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:24:35,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound2.c Unable to find full path for "g++" [2024-11-13 23:24:36,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:24:37,224 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:24:37,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound2.c [2024-11-13 23:24:37,237 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/data/6c8ba2dad/adc9ff024d54493ca40948d4922704e4/FLAG99b147442 [2024-11-13 23:24:37,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/data/6c8ba2dad/adc9ff024d54493ca40948d4922704e4 [2024-11-13 23:24:37,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:24:37,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:24:37,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:24:37,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:24:37,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:24:37,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6dd1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37, skipping insertion in model container [2024-11-13 23:24:37,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:24:37,478 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound2.c[537,550] [2024-11-13 23:24:37,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:24:37,514 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:24:37,529 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound2.c[537,550] [2024-11-13 23:24:37,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:24:37,561 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:24:37,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37 WrapperNode [2024-11-13 23:24:37,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:24:37,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:24:37,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:24:37,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:24:37,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,598 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-11-13 23:24:37,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:24:37,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:24:37,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:24:37,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:24:37,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,616 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:24:37,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:24:37,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:24:37,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:24:37,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:37" (1/1) ... [2024-11-13 23:24:37,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:24:37,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:24:37,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:24:37,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:24:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:24:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:24:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:24:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:24:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:24:37,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:24:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 23:24:37,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 23:24:37,786 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:24:37,788 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:24:38,004 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-13 23:24:38,004 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:24:38,080 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:24:38,081 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:24:38,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:24:38 BoogieIcfgContainer [2024-11-13 23:24:38,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:24:38,083 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:24:38,083 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:24:38,097 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:24:38,097 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:24:38" (1/1) ... [2024-11-13 23:24:38,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:24:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:24:38,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-13 23:24:38,173 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-13 23:24:38,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 23:24:38,179 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:24:38,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:24:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:24:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:24:38,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 23:24:38,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:24:38,811 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 23:24:38,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:24:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2024-11-13 23:24:38,967 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2024-11-13 23:24:38,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 23:24:38,970 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:24:38,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:24:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:24:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 23:24:41,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:24:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2024-11-13 23:24:41,515 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-13 23:24:41,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:24:41,516 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:24:41,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:24:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:24:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:24:49,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 23:24:49,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:25:07,772 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 23:25:54,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 23:25:59,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 23:26:00,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:26:00,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 32 states and 46 transitions. [2024-11-13 23:26:00,477 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2024-11-13 23:26:00,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 23:26:00,479 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:26:00,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:26:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:26:04,392 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:27:05,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 23:27:05,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:27:05,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 24 states and 31 transitions. [2024-11-13 23:27:05,831 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-11-13 23:27:05,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 23:27:05,832 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2024-11-13 23:27:05,840 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-13 23:27:06,800 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 23:27:06,800 INFO L77 FloydHoareUtils]: At program point L29(line 29) the Hoare annotation is: true [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point L27(line 27) the Hoare annotation is: true [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point L25(line 25) the Hoare annotation is: (<= (mod |ULTIMATE.start_main_~a~0#1| 4294967296) 2) [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point L25-1(line 25) the Hoare annotation is: (not (and (<= (mod |ULTIMATE.start_main_~a~0#1| 4294967296) 2) (< 2 (mod |ULTIMATE.start_main_~b~0#1| 4294967296)))) [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point L23(line 23) the Hoare annotation is: true [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point L23-1(line 23) the Hoare annotation is: (<= (mod |ULTIMATE.start_main_~a~0#1| 4294967296) 2) [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point L52(line 52) the Hoare annotation is: true [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point L38(line 38) the Hoare annotation is: true [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point L38-1(lines 37 50) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|))) (= (* 2 .cse0) (+ (* (div .cse0 2147483648) 4294967296) (mod (+ (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~x~0#1|)) 4294967296)))) [2024-11-13 23:27:06,801 INFO L77 FloydHoareUtils]: At program point L30(line 30) the Hoare annotation is: true [2024-11-13 23:27:06,802 INFO L77 FloydHoareUtils]: At program point L26(line 26) the Hoare annotation is: true [2024-11-13 23:27:06,802 INFO L77 FloydHoareUtils]: At program point L43-2(lines 37 50) the Hoare annotation is: true [2024-11-13 23:27:06,802 INFO L77 FloydHoareUtils]: At program point L37-2(lines 37 50) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|))) (= (* 2 .cse0) (+ (* (div .cse0 2147483648) 4294967296) (mod (+ (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~x~0#1|)) 4294967296)))) [2024-11-13 23:27:06,802 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2024-11-13 23:27:06,803 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 8 10) the Hoare annotation is: (not (= |assume_abort_if_not_#in~cond| 0)) [2024-11-13 23:27:06,803 INFO L77 FloydHoareUtils]: At program point L13(lines 13 14) the Hoare annotation is: true [2024-11-13 23:27:06,803 INFO L77 FloydHoareUtils]: At program point L12(lines 12 15) the Hoare annotation is: (or (and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (<= 1 __VERIFIER_assert_~cond)) (= __VERIFIER_assert_~cond 0)) [2024-11-13 23:27:06,803 INFO L77 FloydHoareUtils]: At program point L12-2(lines 11 17) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-13 23:27:06,803 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 11 17) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-13 23:27:06,803 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: (not (and (not (= |__VERIFIER_assert_#in~cond| 0)) (not (= |__VERIFIER_assert_#in~cond| 1)))) [2024-11-13 23:27:06,804 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) the Hoare annotation is: true [2024-11-13 23:27:06,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:27:06 ImpRootNode [2024-11-13 23:27:06,826 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:27:06,826 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:27:06,827 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:27:06,827 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:27:06,828 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:24:38" (3/4) ... [2024-11-13 23:27:06,831 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 23:27:06,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-13 23:27:06,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-13 23:27:06,839 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-13 23:27:06,840 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-13 23:27:06,841 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 23:27:06,841 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:27:06,841 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:27:06,928 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 23:27:06,929 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 23:27:06,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:27:06,930 INFO L158 Benchmark]: Toolchain (without parser) took 149666.52ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 93.4MB in the end (delta: 23.6MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-11-13 23:27:06,930 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:27:06,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.27ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 105.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:27:06,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.31ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:27:06,932 INFO L158 Benchmark]: Boogie Preprocessor took 26.55ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 103.7MB in the end (delta: 586.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:27:06,932 INFO L158 Benchmark]: RCFGBuilder took 450.59ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 90.9MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:27:06,934 INFO L158 Benchmark]: CodeCheck took 148742.90ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 98.0MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:27:06,934 INFO L158 Benchmark]: Witness Printer took 102.60ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 93.4MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:27:06,936 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 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 147.7s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 258 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 20.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 141 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 413 IncrementalHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 141 mSolverCounterUnsat, 122 mSDtfsCounter, 413 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 983 GetRequests, 909 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1580 ImplicationChecksByTransitivity, 125.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 8.3s SatisfiabilityAnalysisTime, 23.0s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 127 ConstructedInterpolants, 0 QuantifiedInterpolants, 741 SizeOfPredicates, 2 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 120/141 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: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 8]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((cond == 0) || (cond == 1)) Ensures: (cond != 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.27ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 105.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.31ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.55ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 103.7MB in the end (delta: 586.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 450.59ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 90.9MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 148742.90ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 98.0MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 102.60ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 93.4MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-13 23:27:07,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ab96fb-6478-47a7-83e2-a9d0f293f549/bin/ukojak-verify-EEHR8qb7sm/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