./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b --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 64bit --witnessprinter.graph.data.programhash 9ed25352bec2d7da738d6657561b18ebc07528edfed3f1284e6d0b15cad6b1b1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:41:11,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:41:11,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-12-05 23:41:11,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:41:11,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:41:11,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:41:11,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:41:11,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:41:11,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:41:11,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:41:11,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:41:11,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:41:11,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:41:11,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:41:11,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:41:11,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:41:11,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:41:11,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:41:11,512 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:41:11,513 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:41:11,513 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:41:11,513 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:41:11,513 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:41:11,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:41:11,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:41:11,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:41:11,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:41:11,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:41:11,513 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:41:11,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:41:11,514 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_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ed25352bec2d7da738d6657561b18ebc07528edfed3f1284e6d0b15cad6b1b1 [2024-12-05 23:41:11,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:41:11,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:41:11,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:41:11,760 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:41:11,760 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:41:11,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c [2024-12-05 23:41:14,434 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data/817baf738/6144d9149e654c219ef45ceef5939563/FLAGc4b248897 [2024-12-05 23:41:14,720 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:41:14,721 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c [2024-12-05 23:41:14,736 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data/817baf738/6144d9149e654c219ef45ceef5939563/FLAGc4b248897 [2024-12-05 23:41:14,751 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data/817baf738/6144d9149e654c219ef45ceef5939563 [2024-12-05 23:41:14,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:41:14,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:41:14,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:41:14,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:41:14,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:41:14,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:41:14" (1/1) ... [2024-12-05 23:41:14,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442f9d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:14, skipping insertion in model container [2024-12-05 23:41:14,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:41:14" (1/1) ... [2024-12-05 23:41:14,807 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:41:14,972 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_f0dea94d-8d4f-472f-9129-f5f8e0265522/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c[1176,1189] [2024-12-05 23:41:15,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:41:15,301 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:41:15,310 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_f0dea94d-8d4f-472f-9129-f5f8e0265522/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c[1176,1189] [2024-12-05 23:41:15,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:41:15,542 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:41:15,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15 WrapperNode [2024-12-05 23:41:15,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:41:15,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:41:15,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:41:15,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:41:15,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:15,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,203 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7678 [2024-12-05 23:41:16,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:41:16,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:41:16,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:41:16,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:41:16,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,466 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:41:16,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:41:16,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:41:16,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:41:16,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:15" (1/1) ... [2024-12-05 23:41:16,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:41:16,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:41:16,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:41:16,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:41:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:41:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:41:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:41:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:41:17,323 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:41:17,325 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:41:25,784 INFO L? ?]: Removed 4223 outVars from TransFormulas that were not future-live. [2024-12-05 23:41:25,784 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:41:35,471 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:41:35,472 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:41:35,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:41:35 BoogieIcfgContainer [2024-12-05 23:41:35,472 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:41:35,473 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:41:35,473 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:41:35,480 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:41:35,480 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:41:35" (1/1) ... [2024-12-05 23:41:35,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:41:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:41:35,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-05 23:41:35,523 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-05 23:41:35,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 23:41:35,524 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:41:35,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:41:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:41:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:41:50,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 23:42:00,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 23:42:02,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 23:42:06,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 23:42:16,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 23:42:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:42:16,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-05 23:42:16,351 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-05 23:42:16,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 23:42:16,351 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:42:16,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:44:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:44:12,978 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:45:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:45:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:45:52,480 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) [2024-12-05 23:45:52,486 INFO L158 Benchmark]: Toolchain (without parser) took 277730.64ms. Allocated memory was 142.6MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 113.9MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 829.7MB. Max. memory is 16.1GB. [2024-12-05 23:45:52,486 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:45:52,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 787.41ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 64.1MB in the end (delta: 49.6MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2024-12-05 23:45:52,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 660.19ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 64.1MB in the beginning and 163.4MB in the end (delta: -99.3MB). Peak memory consumption was 194.9MB. Max. memory is 16.1GB. [2024-12-05 23:45:52,489 INFO L158 Benchmark]: Boogie Preprocessor took 554.12ms. Allocated memory was 335.5MB in the beginning and 1.0GB in the end (delta: 671.1MB). Free memory was 163.4MB in the beginning and 793.9MB in the end (delta: -630.5MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2024-12-05 23:45:52,489 INFO L158 Benchmark]: RCFGBuilder took 18712.91ms. Allocated memory was 1.0GB in the beginning and 1.3GB in the end (delta: 251.7MB). Free memory was 793.9MB in the beginning and 316.1MB in the end (delta: 477.8MB). Peak memory consumption was 748.3MB. Max. memory is 16.1GB. [2024-12-05 23:45:52,490 INFO L158 Benchmark]: CodeCheck took 257011.27ms. Allocated memory was 1.3GB in the beginning and 3.0GB in the end (delta: 1.7GB). Free memory was 316.1MB in the beginning and 2.1GB in the end (delta: -1.8GB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:45:52,493 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 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 787.41ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 64.1MB in the end (delta: 49.6MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 660.19ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 64.1MB in the beginning and 163.4MB in the end (delta: -99.3MB). Peak memory consumption was 194.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 554.12ms. Allocated memory was 335.5MB in the beginning and 1.0GB in the end (delta: 671.1MB). Free memory was 163.4MB in the beginning and 793.9MB in the end (delta: -630.5MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * RCFGBuilder took 18712.91ms. Allocated memory was 1.0GB in the beginning and 1.3GB in the end (delta: 251.7MB). Free memory was 793.9MB in the beginning and 316.1MB in the end (delta: 477.8MB). Peak memory consumption was 748.3MB. Max. memory is 16.1GB. * CodeCheck took 257011.27ms. Allocated memory was 1.3GB in the beginning and 3.0GB in the end (delta: 1.7GB). Free memory was 316.1MB in the beginning and 2.1GB in the end (delta: -1.8GB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-05 23:45:52,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b --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 64bit --witnessprinter.graph.data.programhash 9ed25352bec2d7da738d6657561b18ebc07528edfed3f1284e6d0b15cad6b1b1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:45:54,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:45:54,666 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2024-12-05 23:45:54,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:45:54,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:45:54,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:45:54,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:45:54,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:45:54,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:45:54,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:45:54,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:45:54,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:45:54,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:45:54,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:45:54,693 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:45:54,694 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:45:54,694 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:45:54,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:45:54,694 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:45:54,694 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:45:54,694 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:45:54,694 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:45:54,695 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:45:54,695 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:45:54,695 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:45:54,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:45:54,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:45:54,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:45:54,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:45:54,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:45:54,695 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:45:54,695 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:45:54,696 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:45:54,696 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_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ed25352bec2d7da738d6657561b18ebc07528edfed3f1284e6d0b15cad6b1b1 [2024-12-05 23:45:54,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:45:54,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:45:54,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:45:54,946 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:45:54,946 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:45:54,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c [2024-12-05 23:45:57,657 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data/d49248f03/0f299507c98b45e9b6b0f560fbe8945e/FLAGf3791c257 [2024-12-05 23:45:57,932 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:45:57,932 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c [2024-12-05 23:45:57,951 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data/d49248f03/0f299507c98b45e9b6b0f560fbe8945e/FLAGf3791c257 [2024-12-05 23:45:57,966 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/data/d49248f03/0f299507c98b45e9b6b0f560fbe8945e [2024-12-05 23:45:57,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:45:57,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:45:57,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:45:57,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:45:57,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:45:57,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:45:57" (1/1) ... [2024-12-05 23:45:57,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26569014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:57, skipping insertion in model container [2024-12-05 23:45:57,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:45:57" (1/1) ... [2024-12-05 23:45:58,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:45:58,190 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_f0dea94d-8d4f-472f-9129-f5f8e0265522/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c[1176,1189] [2024-12-05 23:45:58,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:45:58,461 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:45:58,468 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_f0dea94d-8d4f-472f-9129-f5f8e0265522/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.6.prop1-back-serstep.c[1176,1189] [2024-12-05 23:45:58,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:45:58,592 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:45:58,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58 WrapperNode [2024-12-05 23:45:58,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:45:58,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:45:58,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:45:58,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:45:58,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,717 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2550 [2024-12-05 23:45:58,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:45:58,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:45:58,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:45:58,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:45:58,723 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:45:58,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:45:58,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:45:58,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:45:58,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:45:58" (1/1) ... [2024-12-05 23:45:58,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:45:58,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:45:58,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:45:58,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:45:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:45:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:45:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:45:58,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:45:59,277 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:45:59,279 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:46:01,874 INFO L? ?]: Removed 271 outVars from TransFormulas that were not future-live. [2024-12-05 23:46:01,874 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:46:01,928 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:46:01,928 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:46:01,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:46:01 BoogieIcfgContainer [2024-12-05 23:46:01,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:46:01,929 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:46:01,929 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:46:01,936 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:46:01,936 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:46:01" (1/1) ... [2024-12-05 23:46:01,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:46:01,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:46:01,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-05 23:46:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-05 23:46:01,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 23:46:01,978 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:46:01,979 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:46:01,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:46:01,981 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:46:01,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:46:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:46:02,795 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:46:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:46:03,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 23:46:03,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:46:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:46:03,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:46:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:46:03,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-12-05 23:46:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-12-05 23:46:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 23:46:03,498 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:46:03,498 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:46:03,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:46:03,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:46:03,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dea94d-8d4f-472f-9129-f5f8e0265522/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 23:46:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:46:04,776 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:46:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:46:05,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-12-05 23:46:05,186 INFO L279 TraceCheckSpWp]: Computing forward predicates...