./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk --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 ee2daa1dfbe0d64b8ede4504c07bcca5b6f9048af3b92abbef97ab933225d42e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:20:18,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:20:18,401 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:20:18,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:20:18,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:20:18,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:20:18,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:20:18,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:20:18,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:20:18,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:20:18,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:20:18,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:20:18,469 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:20:18,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:20:18,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:20:18,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:20:18,473 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:20:18,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:20:18,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:20:18,475 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:20:18,475 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:20:18,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:20:18,478 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:20:18,479 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:20:18,479 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:20:18,479 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:20:18,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:20:18,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:20:18,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:20:18,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:20:18,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:20:18,485 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:20:18,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:20:18,485 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_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2daa1dfbe0d64b8ede4504c07bcca5b6f9048af3b92abbef97ab933225d42e [2024-11-08 22:20:18,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:20:18,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:20:18,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:20:18,938 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:20:18,938 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:20:18,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c Unable to find full path for "g++" [2024-11-08 22:20:21,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:20:21,820 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:20:21,821 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c [2024-11-08 22:20:21,832 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/data/791c18c61/5806061cddc9430598645227b5676f8f/FLAG7eefc8a7e [2024-11-08 22:20:22,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/data/791c18c61/5806061cddc9430598645227b5676f8f [2024-11-08 22:20:22,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:20:22,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:20:22,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:20:22,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:20:22,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:20:22,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0d7d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22, skipping insertion in model container [2024-11-08 22:20:22,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,214 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:20:22,466 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_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c[537,550] [2024-11-08 22:20:22,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:20:22,507 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:20:22,528 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_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c[537,550] [2024-11-08 22:20:22,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:20:22,564 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:20:22,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22 WrapperNode [2024-11-08 22:20:22,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:20:22,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:20:22,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:20:22,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:20:22,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,611 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-11-08 22:20:22,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:20:22,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:20:22,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:20:22,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:20:22,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:20:22,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:20:22,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:20:22,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:20:22,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:22" (1/1) ... [2024-11-08 22:20:22,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:20:22,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:20:22,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:20:22,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:20:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:20:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:20:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:20:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:20:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:20:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:20:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 22:20:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 22:20:22,851 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:20:22,855 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:20:23,100 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-08 22:20:23,100 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:20:23,175 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:20:23,175 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:20:23,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:23 BoogieIcfgContainer [2024-11-08 22:20:23,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:20:23,182 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:20:23,182 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:20:23,198 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:20:23,199 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:23" (1/1) ... [2024-11-08 22:20:23,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:23,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:20:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-08 22:20:23,281 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-08 22:20:23,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 22:20:23,286 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:20:23,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:20:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:23,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 22:20:23,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:20:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 22:20:24,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:20:24,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2024-11-08 22:20:24,086 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2024-11-08 22:20:24,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 22:20:24,088 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:20:24,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 22:20:26,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 22:20:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:20:27,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2024-11-08 22:20:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-08 22:20:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-08 22:20:27,369 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:20:27,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:20:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:33,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 22:20:33,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:20:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 22:21:15,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 22:21:19,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 22:21:20,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 22:21:21,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:21,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 32 states and 46 transitions. [2024-11-08 22:21:21,169 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2024-11-08 22:21:21,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 22:21:21,171 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:21,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:21:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:21:31,290 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 22:21:31,295 INFO L158 Benchmark]: Toolchain (without parser) took 69116.29ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 116.8MB in the beginning and 156.3MB in the end (delta: -39.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-11-08 22:21:31,296 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 159.4MB. Free memory was 129.3MB in the beginning and 129.1MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:21:31,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.46ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 104.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:21:31,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.30ms. Allocated memory is still 159.4MB. Free memory was 104.2MB in the beginning and 102.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:21:31,298 INFO L158 Benchmark]: Boogie Preprocessor took 33.18ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 101.4MB in the end (delta: 693.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:21:31,299 INFO L158 Benchmark]: RCFGBuilder took 533.23ms. Allocated memory is still 159.4MB. Free memory was 101.4MB in the beginning and 87.4MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 22:21:31,300 INFO L158 Benchmark]: CodeCheck took 68112.02ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 87.4MB in the beginning and 156.3MB in the end (delta: -68.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:21:31,304 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 159.4MB. Free memory was 129.3MB in the beginning and 129.1MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.46ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 104.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.30ms. Allocated memory is still 159.4MB. Free memory was 104.2MB in the beginning and 102.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.18ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 101.4MB in the end (delta: 693.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 533.23ms. Allocated memory is still 159.4MB. Free memory was 101.4MB in the beginning and 87.4MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 68112.02ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 87.4MB in the beginning and 156.3MB in the end (delta: -68.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-08 22:21:31,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk --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 ee2daa1dfbe0d64b8ede4504c07bcca5b6f9048af3b92abbef97ab933225d42e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:21:34,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:21:34,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-08 22:21:34,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:21:34,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:21:34,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:21:34,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:21:34,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:21:34,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:21:34,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:21:34,673 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:21:34,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:21:34,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:21:34,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:21:34,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:21:34,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:21:34,680 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:21:34,681 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:21:34,681 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:21:34,682 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:21:34,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:21:34,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:21:34,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:21:34,684 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:21:34,685 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:21:34,686 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:21:34,686 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:21:34,687 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:21:34,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:21:34,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:21:34,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:21:34,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:21:34,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:21:34,690 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:21:34,691 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:21:34,691 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:21:34,692 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_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2daa1dfbe0d64b8ede4504c07bcca5b6f9048af3b92abbef97ab933225d42e [2024-11-08 22:21:35,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:21:35,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:21:35,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:21:35,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:21:35,277 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:21:35,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c Unable to find full path for "g++" [2024-11-08 22:21:37,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:21:38,066 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:21:38,067 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c [2024-11-08 22:21:38,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/data/ac053b581/31f3694527104952bfda9d4b125c7947/FLAG14dd6e0a5 [2024-11-08 22:21:38,440 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/data/ac053b581/31f3694527104952bfda9d4b125c7947 [2024-11-08 22:21:38,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:21:38,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:21:38,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:21:38,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:21:38,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:21:38,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a887bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38, skipping insertion in model container [2024-11-08 22:21:38,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,478 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:21:38,684 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_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c[537,550] [2024-11-08 22:21:38,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:21:38,716 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:21:38,732 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_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c[537,550] [2024-11-08 22:21:38,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:21:38,760 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:21:38,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38 WrapperNode [2024-11-08 22:21:38,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:21:38,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:21:38,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:21:38,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:21:38,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,810 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-11-08 22:21:38,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:21:38,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:21:38,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:21:38,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:21:38,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:21:38,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:21:38,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:21:38,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:21:38,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:38" (1/1) ... [2024-11-08 22:21:38,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:21:38,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:21:38,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:21:38,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:21:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:21:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:21:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:21:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:21:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:21:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:21:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 22:21:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 22:21:39,002 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:21:39,006 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:21:39,317 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-08 22:21:39,317 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:21:39,426 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:21:39,427 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:21:39,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:21:39 BoogieIcfgContainer [2024-11-08 22:21:39,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:21:39,430 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:21:39,431 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:21:39,444 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:21:39,444 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:21:39" (1/1) ... [2024-11-08 22:21:39,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:21:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-08 22:21:39,548 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-08 22:21:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 22:21:39,555 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:39,556 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:21:39,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:21:39,560 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:21:39,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:21:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:39,779 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:21:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:39,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 22:21:39,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:21:40,648 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 22:21:40,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:21:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 37 transitions. [2024-11-08 22:21:41,675 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-08 22:21:41,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 22:21:41,677 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:41,678 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:21:41,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:21:41,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:21:41,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 22:21:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:41,770 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:21:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:41,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 22:21:41,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:21:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 22:21:44,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 22:21:48,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:48,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 31 states and 46 transitions. [2024-11-08 22:21:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2024-11-08 22:21:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-08 22:21:48,507 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:48,508 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:21:48,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:21:48,512 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:21:48,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-08 22:21:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:48,806 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:21:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 22:21:49,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:21:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 22:21:51,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-08 22:21:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 34 states and 52 transitions. [2024-11-08 22:21:58,761 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2024-11-08 22:21:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 22:21:58,764 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:58,764 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:21:58,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:21:58,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:21:58,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-08 22:21:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:59,230 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:21:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:59,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 22:21:59,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:22:04,831 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 22:22:04,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-08 22:22:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:22:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 37 states and 58 transitions. [2024-11-08 22:22:19,782 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2024-11-08 22:22:19,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-08 22:22:19,784 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:22:19,784 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:22:19,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:22:19,786 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:22:19,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-08 22:22:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:22:20,315 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:22:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:22:20,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-08 22:22:20,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:22:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-08 22:22:40,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-08 22:23:10,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:10,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 64 transitions. [2024-11-08 22:23:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2024-11-08 22:23:10,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 22:23:10,310 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:10,310 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:23:10,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:23:10,313 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:23:10,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-08 22:23:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:10,959 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:23:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:11,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-08 22:23:11,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:24:13,303 WARN L286 SmtUtils]: Spent 7.53s on a formula simplification that was a NOOP. DAG size: 260 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:24:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 22:24:32,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-08 22:24:54,345 WARN L286 SmtUtils]: Spent 16.02s on a formula simplification. DAG size of input: 163 DAG size of output: 163 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:25:05,248 WARN L286 SmtUtils]: Spent 7.12s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:25:38,350 WARN L286 SmtUtils]: Spent 7.80s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:25:59,078 WARN L286 SmtUtils]: Spent 12.64s on a formula simplification that was a NOOP. DAG size: 303 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:26:22,020 WARN L286 SmtUtils]: Spent 11.24s on a formula simplification that was a NOOP. DAG size: 304 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:26:24,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 22:26:26,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 22:26:29,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 22:26:34,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 22:26:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:26:34,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 43 states and 70 transitions. [2024-11-08 22:26:34,711 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2024-11-08 22:26:34,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 22:26:34,713 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:26:34,713 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:26:34,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:26:34,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:26:34,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1fb85f-4dae-4cb3-8cae-f2e1b32e6c4f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-08 22:26:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:26:35,746 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:26:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:26:36,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-08 22:26:36,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:29:18,314 WARN L286 SmtUtils]: Spent 18.04s on a formula simplification that was a NOOP. DAG size: 243 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:30:54,486 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:35:16,958 WARN L286 SmtUtils]: Spent 1.57m on a formula simplification that was a NOOP. DAG size: 289 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)