./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/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 4bfade33d4de709e97835beb78d2e683cfe9c604c744b3fd2faff7e2a5309be2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:57:28,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:57:28,114 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-12-06 03:57:28,119 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:57:28,119 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:57:28,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:57:28,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:57:28,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:57:28,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:57:28,139 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:57:28,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:57:28,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:57:28,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:57:28,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:57:28,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:57:28,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:57:28,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:57:28,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:57:28,140 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:57:28,140 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:57:28,140 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:57:28,140 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:57:28,140 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:57:28,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:57:28,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:57:28,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:57:28,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:57:28,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:57:28,141 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:57:28,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:57:28,141 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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/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 -> 4bfade33d4de709e97835beb78d2e683cfe9c604c744b3fd2faff7e2a5309be2 [2024-12-06 03:57:28,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:57:28,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:57:28,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:57:28,361 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:57:28,362 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:57:28,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c [2024-12-06 03:57:31,050 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data/92d888e6c/2beb54a9c9244c549df48a9986be4532/FLAG3fedea004 [2024-12-06 03:57:31,319 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:57:31,320 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c [2024-12-06 03:57:31,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data/92d888e6c/2beb54a9c9244c549df48a9986be4532/FLAG3fedea004 [2024-12-06 03:57:31,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data/92d888e6c/2beb54a9c9244c549df48a9986be4532 [2024-12-06 03:57:31,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:57:31,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:57:31,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:57:31,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:57:31,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:57:31,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:57:31" (1/1) ... [2024-12-06 03:57:31,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@135d2368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:31, skipping insertion in model container [2024-12-06 03:57:31,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:57:31" (1/1) ... [2024-12-06 03:57:31,405 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:57:31,575 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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c[1173,1186] [2024-12-06 03:57:31,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:57:31,862 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:57:31,869 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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c[1173,1186] [2024-12-06 03:57:32,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:57:32,040 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:57:32,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32 WrapperNode [2024-12-06 03:57:32,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:57:32,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:57:32,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:57:32,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:57:32,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,564 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6293 [2024-12-06 03:57:32,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:57:32,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:57:32,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:57:32,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:57:32,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,877 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,935 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:32,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:33,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:57:33,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:57:33,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:57:33,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:57:33,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:32" (1/1) ... [2024-12-06 03:57:33,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:57:33,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:57:33,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:57:33,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:57:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:57:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:57:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:57:33,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:57:33,507 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:57:33,508 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:57:40,422 INFO L? ?]: Removed 3537 outVars from TransFormulas that were not future-live. [2024-12-06 03:57:40,423 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:57:47,536 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:57:47,536 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 03:57:47,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:57:47 BoogieIcfgContainer [2024-12-06 03:57:47,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:57:47,537 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:57:47,537 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:57:47,544 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:57:47,544 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:57:47" (1/1) ... [2024-12-06 03:57:47,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:57:47,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:47,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 03:57:47,587 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 03:57:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 03:57:47,589 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:47,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:58:02,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 03:58:12,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 03:58:19,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.33s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 03:58:21,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 03:58:31,734 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 [] [2024-12-06 03:58:31,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:58:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-06 03:58:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-06 03:58:31,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:58:31,770 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:58:31,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:59:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:59:41,525 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:01:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:01:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:01:13,408 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) [2024-12-06 04:01:13,412 INFO L158 Benchmark]: Toolchain (without parser) took 222058.07ms. Allocated memory was 117.4MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 89.5MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 864.2MB. Max. memory is 16.1GB. [2024-12-06 04:01:13,412 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:01:13,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 685.89ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 89.5MB in the beginning and 95.5MB in the end (delta: -6.0MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2024-12-06 04:01:13,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 522.97ms. Allocated memory was 159.4MB in the beginning and 478.2MB in the end (delta: 318.8MB). Free memory was 95.5MB in the beginning and 338.1MB in the end (delta: -242.6MB). Peak memory consumption was 135.1MB. Max. memory is 16.1GB. [2024-12-06 04:01:13,414 INFO L158 Benchmark]: Boogie Preprocessor took 501.16ms. Allocated memory was 478.2MB in the beginning and 419.4MB in the end (delta: -58.7MB). Free memory was 338.1MB in the beginning and 244.3MB in the end (delta: 93.8MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2024-12-06 04:01:13,414 INFO L158 Benchmark]: RCFGBuilder took 14469.57ms. Allocated memory was 419.4MB in the beginning and 981.5MB in the end (delta: 562.0MB). Free memory was 244.3MB in the beginning and 662.9MB in the end (delta: -418.6MB). Peak memory consumption was 830.9MB. Max. memory is 16.1GB. [2024-12-06 04:01:13,415 INFO L158 Benchmark]: CodeCheck took 205873.89ms. Allocated memory was 981.5MB in the beginning and 2.9GB in the end (delta: 1.9GB). Free memory was 662.9MB in the beginning and 2.0GB in the end (delta: -1.3GB). Peak memory consumption was 571.0MB. Max. memory is 16.1GB. [2024-12-06 04:01:13,417 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 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 685.89ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 89.5MB in the beginning and 95.5MB in the end (delta: -6.0MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 522.97ms. Allocated memory was 159.4MB in the beginning and 478.2MB in the end (delta: 318.8MB). Free memory was 95.5MB in the beginning and 338.1MB in the end (delta: -242.6MB). Peak memory consumption was 135.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 501.16ms. Allocated memory was 478.2MB in the beginning and 419.4MB in the end (delta: -58.7MB). Free memory was 338.1MB in the beginning and 244.3MB in the end (delta: 93.8MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * RCFGBuilder took 14469.57ms. Allocated memory was 419.4MB in the beginning and 981.5MB in the end (delta: 562.0MB). Free memory was 244.3MB in the beginning and 662.9MB in the end (delta: -418.6MB). Peak memory consumption was 830.9MB. Max. memory is 16.1GB. * CodeCheck took 205873.89ms. Allocated memory was 981.5MB in the beginning and 2.9GB in the end (delta: 1.9GB). Free memory was 662.9MB in the beginning and 2.0GB in the end (delta: -1.3GB). Peak memory consumption was 571.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-06 04:01:13,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/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 4bfade33d4de709e97835beb78d2e683cfe9c604c744b3fd2faff7e2a5309be2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:01:15,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:01:15,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2024-12-06 04:01:15,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:01:15,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:01:15,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:01:15,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:01:15,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:01:15,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:01:15,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:01:15,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:01:15,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:01:15,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:01:15,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:01:15,618 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:01:15,618 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 04:01:15,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:01:15,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:01:15,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:01:15,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:01:15,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:01:15,619 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 04:01:15,619 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:01:15,619 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 04:01:15,619 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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/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 -> 4bfade33d4de709e97835beb78d2e683cfe9c604c744b3fd2faff7e2a5309be2 [2024-12-06 04:01:15,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:01:15,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:01:15,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:01:15,871 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:01:15,872 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:01:15,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c [2024-12-06 04:01:18,493 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data/661d5fa10/7da041c8532445a7b0ee4ee8638b3de1/FLAG8073d6e99 [2024-12-06 04:01:18,802 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:01:18,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c [2024-12-06 04:01:18,821 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data/661d5fa10/7da041c8532445a7b0ee4ee8638b3de1/FLAG8073d6e99 [2024-12-06 04:01:19,064 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/data/661d5fa10/7da041c8532445a7b0ee4ee8638b3de1 [2024-12-06 04:01:19,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:01:19,067 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:01:19,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:01:19,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:01:19,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:01:19,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8316ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19, skipping insertion in model container [2024-12-06 04:01:19,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:01:19,271 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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c[1173,1186] [2024-12-06 04:01:19,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:01:19,524 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:01:19,532 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_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c[1173,1186] [2024-12-06 04:01:19,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:01:19,666 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:01:19,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19 WrapperNode [2024-12-06 04:01:19,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:01:19,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:01:19,667 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:01:19,667 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:01:19,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,786 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2181 [2024-12-06 04:01:19,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:01:19,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:01:19,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:01:19,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:01:19,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,847 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:01:19,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:01:19,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:01:19,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:01:19,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:19" (1/1) ... [2024-12-06 04:01:19,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:01:19,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:01:19,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:01:19,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:01:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:01:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 04:01:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:01:19,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:01:20,299 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:01:20,301 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:01:22,684 INFO L? ?]: Removed 232 outVars from TransFormulas that were not future-live. [2024-12-06 04:01:22,684 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:01:22,747 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:01:22,747 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 04:01:22,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:01:22 BoogieIcfgContainer [2024-12-06 04:01:22,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:01:22,748 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:01:22,748 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:01:22,756 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:01:22,756 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:01:22" (1/1) ... [2024-12-06 04:01:22,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:01:22,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:01:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 04:01:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 04:01:22,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 04:01:22,799 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:01:22,800 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:01:22,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:01:22,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:01:22,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 04:01:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:01:23,490 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:01:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:01:23,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 04:01:23,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:01:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:01:23,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 04:01:24,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:01:24,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-12-06 04:01:24,028 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-12-06 04:01:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:01:24,028 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:01:24,028 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:01:24,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:01:24,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:01:24,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b5e3e-8bdc-4703-86e0-9209c87ad4bb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 04:01:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:01:25,003 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:01:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:01:25,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-06 04:01:25,367 INFO L279 TraceCheckSpWp]: Computing forward predicates...