./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.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_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/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_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/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_33defa5b-f420-4d60-997b-f026ba4cfa9e/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 2fa8a6df24cfb2e7fff9b36ae5a737f29c862e41a0d792285ba28246763fc717 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:29:38,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:29:38,425 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-12-06 00:29:38,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:29:38,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:29:38,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:29:38,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:29:38,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:29:38,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:29:38,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:29:38,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:29:38,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:29:38,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:29:38,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:29:38,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:29:38,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:29:38,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:29:38,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:29:38,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:29:38,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:29:38,453 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:29:38,453 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:29:38,454 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:29:38,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:29:38,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:29:38,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:29:38,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:29:38,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:29:38,454 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:29:38,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:29:38,454 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_33defa5b-f420-4d60-997b-f026ba4cfa9e/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 -> 2fa8a6df24cfb2e7fff9b36ae5a737f29c862e41a0d792285ba28246763fc717 [2024-12-06 00:29:38,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:29:38,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:29:38,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:29:38,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:29:38,711 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:29:38,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-12-06 00:29:41,408 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data/36a502d95/f3bca5290aa64fc48711a379d407f1df/FLAG86bf043b6 [2024-12-06 00:29:41,705 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:29:41,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-12-06 00:29:41,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data/36a502d95/f3bca5290aa64fc48711a379d407f1df/FLAG86bf043b6 [2024-12-06 00:29:41,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data/36a502d95/f3bca5290aa64fc48711a379d407f1df [2024-12-06 00:29:41,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:29:41,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:29:41,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:29:41,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:29:41,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:29:41,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:29:41" (1/1) ... [2024-12-06 00:29:41,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ff741b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:41, skipping insertion in model container [2024-12-06 00:29:41,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:29:41" (1/1) ... [2024-12-06 00:29:41,802 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:29:41,977 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_33defa5b-f420-4d60-997b-f026ba4cfa9e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c[1171,1184] [2024-12-06 00:29:42,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:29:42,313 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:29:42,341 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_33defa5b-f420-4d60-997b-f026ba4cfa9e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c[1171,1184] [2024-12-06 00:29:42,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:29:42,555 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:29:42,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42 WrapperNode [2024-12-06 00:29:42,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:29:42,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:29:42,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:29:42,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:29:42,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:42,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:43,271 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9168 [2024-12-06 00:29:43,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:29:43,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:29:43,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:29:43,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:29:43,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:43,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:43,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:43,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:43,728 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:43,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:43,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:43,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:43,895 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:44,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:29:44,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:29:44,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:29:44,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:29:44,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:29:42" (1/1) ... [2024-12-06 00:29:44,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:29:44,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:29:44,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:29:44,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:29:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:29:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:29:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:29:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:29:44,601 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:29:44,603 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:29:55,657 INFO L? ?]: Removed 5024 outVars from TransFormulas that were not future-live. [2024-12-06 00:29:55,657 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:30:07,526 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:30:07,526 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 00:30:07,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:30:07 BoogieIcfgContainer [2024-12-06 00:30:07,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:30:07,528 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:30:07,528 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:30:07,534 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:30:07,535 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:30:07" (1/1) ... [2024-12-06 00:30:07,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:30:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:30:07,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 00:30:07,584 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 00:30:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 00:30:07,586 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:30:07,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:30:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:30:10,452 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 00:30:20,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 00:30:30,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 00:30:41,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 00:30:43,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 00:30:46,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 00:30:47,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 00:30:49,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 00:30:59,348 WARN L539 Checker$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 00:30:59,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:30:59,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-06 00:30:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-06 00:30:59,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 00:30:59,389 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:30:59,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:33:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:33:46,287 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:36:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:36:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 00:36:52,699 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 00:36:52,707 INFO L158 Benchmark]: Toolchain (without parser) took 430966.39ms. Allocated memory was 142.6MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 113.1MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2024-12-06 00:36:52,707 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:36:52,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 814.79ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 76.2MB in the end (delta: 36.9MB). Peak memory consumption was 115.0MB. Max. memory is 16.1GB. [2024-12-06 00:36:52,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 715.13ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 76.2MB in the beginning and 120.1MB in the end (delta: -44.0MB). Peak memory consumption was 229.3MB. Max. memory is 16.1GB. [2024-12-06 00:36:52,713 INFO L158 Benchmark]: Boogie Preprocessor took 796.40ms. Allocated memory was 335.5MB in the beginning and 755.0MB in the end (delta: 419.4MB). Free memory was 120.1MB in the beginning and 502.5MB in the end (delta: -382.4MB). Peak memory consumption was 85.3MB. Max. memory is 16.1GB. [2024-12-06 00:36:52,714 INFO L158 Benchmark]: RCFGBuilder took 23457.98ms. Allocated memory was 755.0MB in the beginning and 1.2GB in the end (delta: 453.0MB). Free memory was 502.5MB in the beginning and 591.4MB in the end (delta: -88.9MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-12-06 00:36:52,718 INFO L158 Benchmark]: CodeCheck took 405177.63ms. Allocated memory was 1.2GB in the beginning and 2.9GB in the end (delta: 1.7GB). Free memory was 591.4MB in the beginning and 2.3GB in the end (delta: -1.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-12-06 00:36:52,724 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 0.41ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 814.79ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 76.2MB in the end (delta: 36.9MB). Peak memory consumption was 115.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 715.13ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 76.2MB in the beginning and 120.1MB in the end (delta: -44.0MB). Peak memory consumption was 229.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 796.40ms. Allocated memory was 335.5MB in the beginning and 755.0MB in the end (delta: 419.4MB). Free memory was 120.1MB in the beginning and 502.5MB in the end (delta: -382.4MB). Peak memory consumption was 85.3MB. Max. memory is 16.1GB. * RCFGBuilder took 23457.98ms. Allocated memory was 755.0MB in the beginning and 1.2GB in the end (delta: 453.0MB). Free memory was 502.5MB in the beginning and 591.4MB in the end (delta: -88.9MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * CodeCheck took 405177.63ms. Allocated memory was 1.2GB in the beginning and 2.9GB in the end (delta: 1.7GB). Free memory was 591.4MB in the beginning and 2.3GB in the end (delta: -1.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-06 00:36:52,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/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_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/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_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/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_33defa5b-f420-4d60-997b-f026ba4cfa9e/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 2fa8a6df24cfb2e7fff9b36ae5a737f29c862e41a0d792285ba28246763fc717 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:36:54,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:36:54,905 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2024-12-06 00:36:54,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:36:54,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:36:54,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:36:54,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:36:54,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:36:54,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:36:54,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:36:54,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:36:54,932 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:36:54,932 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:36:54,932 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:36:54,932 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:36:54,932 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 00:36:54,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:36:54,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:36:54,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:36:54,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:36:54,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:36:54,933 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 00:36:54,933 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:36:54,933 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 00:36:54,933 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_33defa5b-f420-4d60-997b-f026ba4cfa9e/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 -> 2fa8a6df24cfb2e7fff9b36ae5a737f29c862e41a0d792285ba28246763fc717 [2024-12-06 00:36:55,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:36:55,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:36:55,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:36:55,171 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:36:55,172 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:36:55,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-12-06 00:36:57,874 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data/3fea2c59c/439365465f1045dd92e4b8f380fb49eb/FLAGd86e7ee99 [2024-12-06 00:36:58,152 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:36:58,153 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-12-06 00:36:58,171 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data/3fea2c59c/439365465f1045dd92e4b8f380fb49eb/FLAGd86e7ee99 [2024-12-06 00:36:58,186 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/data/3fea2c59c/439365465f1045dd92e4b8f380fb49eb [2024-12-06 00:36:58,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:36:58,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:36:58,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:36:58,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:36:58,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:36:58,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:58,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3a643c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58, skipping insertion in model container [2024-12-06 00:36:58,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:58,247 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:36:58,422 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_33defa5b-f420-4d60-997b-f026ba4cfa9e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c[1171,1184] [2024-12-06 00:36:58,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:36:58,703 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:36:58,710 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_33defa5b-f420-4d60-997b-f026ba4cfa9e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c[1171,1184] [2024-12-06 00:36:58,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:36:58,867 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:36:58,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58 WrapperNode [2024-12-06 00:36:58,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:36:58,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:36:58,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:36:58,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:36:58,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:58,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,012 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2792 [2024-12-06 00:36:59,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:36:59,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:36:59,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:36:59,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:36:59,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,080 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,123 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:36:59,124 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:36:59,124 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:36:59,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:36:59,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:58" (1/1) ... [2024-12-06 00:36:59,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:36:59,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:36:59,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:36:59,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:36:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:36:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 00:36:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:36:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:36:59,611 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:36:59,613 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:37:02,976 INFO L? ?]: Removed 271 outVars from TransFormulas that were not future-live. [2024-12-06 00:37:02,976 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:37:03,036 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:37:03,037 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 00:37:03,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:37:03 BoogieIcfgContainer [2024-12-06 00:37:03,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:37:03,037 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:37:03,037 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:37:03,045 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:37:03,045 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:37:03" (1/1) ... [2024-12-06 00:37:03,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:37:03,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:37:03,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 00:37:03,087 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 00:37:03,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 00:37:03,088 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:37:03,089 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:37:03,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:37:03,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:37:03,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 00:37:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:37:03,893 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:37:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:37:04,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 00:37:04,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:37:04,207 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 00:37:04,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 00:37:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:37:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-12-06 00:37:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-12-06 00:37:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 00:37:04,480 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:37:04,480 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:37:04,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:37:04,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:37:04,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33defa5b-f420-4d60-997b-f026ba4cfa9e/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 00:37:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:37:05,708 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:37:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:37:06,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-12-06 00:37:06,143 INFO L279 TraceCheckSpWp]: Computing forward predicates...