./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9 --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 0b1033a3ae16a6528f3475382722a33012af32e5d099f899eddeadaa2df0dcc4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:58:15,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:58:15,816 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 21:58:15,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:58:15,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:58:15,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:58:15,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:58:15,846 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:58:15,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:58:15,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:58:15,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:58:15,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:58:15,849 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:58:15,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:58:15,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:58:15,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:58:15,851 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:58:15,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:58:15,852 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:58:15,853 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:58:15,854 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:58:15,854 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:58:15,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:58:15,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:58:15,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:58:15,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:58:15,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:58:15,857 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:58:15,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:58:15,858 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:58:15,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b1033a3ae16a6528f3475382722a33012af32e5d099f899eddeadaa2df0dcc4 [2023-12-02 21:58:16,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:58:16,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:58:16,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:58:16,098 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:58:16,099 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:58:16,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c [2023-12-02 21:58:18,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:58:19,297 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:58:19,297 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c [2023-12-02 21:58:19,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/data/07485da11/688bd1370bea48a8a2fab98307d40a54/FLAG67c83e8f1 [2023-12-02 21:58:19,373 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/data/07485da11/688bd1370bea48a8a2fab98307d40a54 [2023-12-02 21:58:19,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:58:19,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:58:19,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:58:19,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:58:19,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:58:19,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:58:19" (1/1) ... [2023-12-02 21:58:19,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa29ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:19, skipping insertion in model container [2023-12-02 21:58:19,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:58:19" (1/1) ... [2023-12-02 21:58:19,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:58:19,853 WARN L240 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_bf38535f-32a4-4644-93f9-120553ae6bff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c[1175,1188] [2023-12-02 21:58:20,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:58:20,814 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:58:20,824 WARN L240 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_bf38535f-32a4-4644-93f9-120553ae6bff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c[1175,1188] [2023-12-02 21:58:21,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:58:21,493 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:58:21,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21 WrapperNode [2023-12-02 21:58:21,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:58:21,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:58:21,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:58:21,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:58:21,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:21,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:22,902 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23602 [2023-12-02 21:58:22,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:58:22,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:58:22,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:58:22,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:58:22,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:22,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:23,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:23,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:23,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:23,814 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:24,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:24,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:24,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:58:24,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:58:24,506 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:58:24,506 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:58:24,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:21" (1/1) ... [2023-12-02 21:58:24,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:58:24,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:58:24,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:58:24,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:58:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:58:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:58:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:58:24,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:58:26,026 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:58:26,027 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:58:58,404 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:59:33,667 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:59:33,667 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:59:33,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:59:33 BoogieIcfgContainer [2023-12-02 21:59:33,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:59:33,669 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:59:33,669 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:59:33,676 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:59:33,676 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:59:33" (1/1) ... [2023-12-02 21:59:33,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:59:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:33,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:59:33,721 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:59:33,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:59:33,722 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:33,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:59:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:59:54,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:00:04,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:00:06,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:00:09,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:00:10,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:00:21,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:00:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:21,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 22:00:21,772 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 22:00:21,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:00:21,772 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:21,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:00:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 22:00:37,375 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:488) 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) [2023-12-02 22:00:37,378 INFO L158 Benchmark]: Toolchain (without parser) took 138001.35ms. Allocated memory was 176.2MB in the beginning and 9.2GB in the end (delta: 9.0GB). Free memory was 125.5MB in the beginning and 7.3GB in the end (delta: -7.2GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-12-02 22:00:37,379 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:00:37,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2115.45ms. Allocated memory was 176.2MB in the beginning and 329.3MB in the end (delta: 153.1MB). Free memory was 125.5MB in the beginning and 145.0MB in the end (delta: -19.5MB). Peak memory consumption was 173.2MB. Max. memory is 16.1GB. [2023-12-02 22:00:37,380 INFO L158 Benchmark]: Boogie Procedure Inliner took 1407.75ms. Allocated memory was 329.3MB in the beginning and 587.2MB in the end (delta: 257.9MB). Free memory was 145.0MB in the beginning and 154.5MB in the end (delta: -9.4MB). Peak memory consumption was 290.5MB. Max. memory is 16.1GB. [2023-12-02 22:00:37,381 INFO L158 Benchmark]: Boogie Preprocessor took 1602.65ms. Allocated memory was 587.2MB in the beginning and 1.5GB in the end (delta: 866.1MB). Free memory was 154.5MB in the beginning and 906.3MB in the end (delta: -751.8MB). Peak memory consumption was 120.6MB. Max. memory is 16.1GB. [2023-12-02 22:00:37,381 INFO L158 Benchmark]: RCFGBuilder took 69162.89ms. Allocated memory was 1.5GB in the beginning and 9.2GB in the end (delta: 7.7GB). Free memory was 906.3MB in the beginning and 7.7GB in the end (delta: -6.8GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2023-12-02 22:00:37,382 INFO L158 Benchmark]: CodeCheck took 63708.11ms. Allocated memory is still 9.2GB. Free memory was 7.7GB in the beginning and 7.3GB in the end (delta: 412.8MB). Peak memory consumption was 413.8MB. Max. memory is 16.1GB. [2023-12-02 22:00:37,385 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:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2115.45ms. Allocated memory was 176.2MB in the beginning and 329.3MB in the end (delta: 153.1MB). Free memory was 125.5MB in the beginning and 145.0MB in the end (delta: -19.5MB). Peak memory consumption was 173.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1407.75ms. Allocated memory was 329.3MB in the beginning and 587.2MB in the end (delta: 257.9MB). Free memory was 145.0MB in the beginning and 154.5MB in the end (delta: -9.4MB). Peak memory consumption was 290.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1602.65ms. Allocated memory was 587.2MB in the beginning and 1.5GB in the end (delta: 866.1MB). Free memory was 154.5MB in the beginning and 906.3MB in the end (delta: -751.8MB). Peak memory consumption was 120.6MB. Max. memory is 16.1GB. * RCFGBuilder took 69162.89ms. Allocated memory was 1.5GB in the beginning and 9.2GB in the end (delta: 7.7GB). Free memory was 906.3MB in the beginning and 7.7GB in the end (delta: -6.8GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. * CodeCheck took 63708.11ms. Allocated memory is still 9.2GB. Free memory was 7.7GB in the beginning and 7.3GB in the end (delta: 412.8MB). Peak memory consumption was 413.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 22:00:37,597 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 22:00:37,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9 --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 0b1033a3ae16a6528f3475382722a33012af32e5d099f899eddeadaa2df0dcc4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:00:39,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:00:39,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 22:00:39,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:00:39,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:00:39,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:00:39,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:00:39,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:00:39,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:00:39,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:00:39,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:00:39,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:00:39,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:00:39,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:00:39,790 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 22:00:39,791 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 22:00:39,791 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 22:00:39,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:00:39,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:00:39,793 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:00:39,793 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:00:39,796 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:00:39,797 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:39,797 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 22:00:39,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:00:39,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:00:39,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:00:39,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:00:39,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:00:39,800 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 22:00:39,800 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:39,800 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:00:39,801 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 22:00:39,801 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 22:00:39,801 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b1033a3ae16a6528f3475382722a33012af32e5d099f899eddeadaa2df0dcc4 [2023-12-02 22:00:40,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:00:40,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:00:40,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:00:40,101 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:00:40,101 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:00:40,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c [2023-12-02 22:00:42,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:00:43,450 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:00:43,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c [2023-12-02 22:00:43,515 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/data/2bc57c109/d8fffaf20031422484d629ac497e95d4/FLAG1bb97e430 [2023-12-02 22:00:43,530 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/data/2bc57c109/d8fffaf20031422484d629ac497e95d4 [2023-12-02 22:00:43,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:00:43,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:00:43,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:00:43,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:00:43,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:00:43,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:00:43" (1/1) ... [2023-12-02 22:00:43,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354e1ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:43, skipping insertion in model container [2023-12-02 22:00:43,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:00:43" (1/1) ... [2023-12-02 22:00:43,735 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:00:44,030 WARN L240 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_bf38535f-32a4-4644-93f9-120553ae6bff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c[1175,1188] [2023-12-02 22:00:44,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:00:44,862 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:00:44,875 WARN L240 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_bf38535f-32a4-4644-93f9-120553ae6bff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c[1175,1188] [2023-12-02 22:00:45,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:00:45,466 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:00:45,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45 WrapperNode [2023-12-02 22:00:45,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:00:45,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:00:45,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:00:45,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:00:45,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:45,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:45,906 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11456 [2023-12-02 22:00:45,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:00:45,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:00:45,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:00:45,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:00:45,915 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:45,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:45,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:45,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:46,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:46,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:46,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:46,311 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:46,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:00:46,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:00:46,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:00:46,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:00:46,379 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:00:45" (1/1) ... [2023-12-02 22:00:46,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:00:46,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:00:46,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:00:46,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:00:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:00:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 22:00:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:00:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:00:47,947 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:00:47,949 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:01:35,864 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:01:36,417 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:01:36,417 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:01:36,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:01:36 BoogieIcfgContainer [2023-12-02 22:01:36,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:01:36,420 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:01:36,420 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:01:36,430 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:01:36,430 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:01:36" (1/1) ... [2023-12-02 22:01:36,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:01:36,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:01:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 22:01:36,491 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 22:01:36,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 22:01:36,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:01:36,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:01:36,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:01:36,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:01:36,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 22:01:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:01:39,237 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:01:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:01:39,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 22:01:39,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:01:40,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:01:40,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 22:01:50,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:02:00,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:02:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:02:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 22:02:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 22:02:01,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:02:01,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:02:01,153 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:02:01,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:02:01,155 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:02:01,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 22:02:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:02:09,529 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:02:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:02:12,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 11055 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 22:02:12,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:02:13,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:02:13,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 22:02:24,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:02:35,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:02:47,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:02:57,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:03:07,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:03:17,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:03:27,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:03:37,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:03:48,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:03:59,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:04:09,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:04:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:04:09,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-02 22:04:09,975 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-02 22:04:09,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:04:09,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:04:09,977 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:04:09,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:04:09,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:04:09,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 22:04:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:04:24,301 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:04:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 22:04:38,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 22:04:38,156 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:488) 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) [2023-12-02 22:04:38,159 INFO L158 Benchmark]: Toolchain (without parser) took 234624.43ms. Allocated memory was 130.0MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 89.0MB in the beginning and 260.9MB in the end (delta: -171.9MB). Peak memory consumption was 832.6MB. Max. memory is 16.1GB. [2023-12-02 22:04:38,159 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 65.0MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:04:38,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1931.43ms. Allocated memory was 130.0MB in the beginning and 262.1MB in the end (delta: 132.1MB). Free memory was 89.0MB in the beginning and 144.0MB in the end (delta: -55.0MB). Peak memory consumption was 101.6MB. Max. memory is 16.1GB. [2023-12-02 22:04:38,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 438.70ms. Allocated memory is still 262.1MB. Free memory was 144.0MB in the beginning and 97.8MB in the end (delta: 46.2MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2023-12-02 22:04:38,161 INFO L158 Benchmark]: Boogie Preprocessor took 470.34ms. Allocated memory is still 262.1MB. Free memory was 97.8MB in the beginning and 81.5MB in the end (delta: 16.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-02 22:04:38,161 INFO L158 Benchmark]: RCFGBuilder took 50040.63ms. Allocated memory was 262.1MB in the beginning and 1.1GB in the end (delta: 870.3MB). Free memory was 81.5MB in the beginning and 645.7MB in the end (delta: -564.2MB). Peak memory consumption was 683.2MB. Max. memory is 16.1GB. [2023-12-02 22:04:38,162 INFO L158 Benchmark]: CodeCheck took 181738.13ms. Allocated memory is still 1.1GB. Free memory was 645.7MB in the beginning and 260.9MB in the end (delta: 384.8MB). Peak memory consumption was 387.5MB. Max. memory is 16.1GB. [2023-12-02 22:04:38,164 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:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 65.0MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1931.43ms. Allocated memory was 130.0MB in the beginning and 262.1MB in the end (delta: 132.1MB). Free memory was 89.0MB in the beginning and 144.0MB in the end (delta: -55.0MB). Peak memory consumption was 101.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 438.70ms. Allocated memory is still 262.1MB. Free memory was 144.0MB in the beginning and 97.8MB in the end (delta: 46.2MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 470.34ms. Allocated memory is still 262.1MB. Free memory was 97.8MB in the beginning and 81.5MB in the end (delta: 16.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * RCFGBuilder took 50040.63ms. Allocated memory was 262.1MB in the beginning and 1.1GB in the end (delta: 870.3MB). Free memory was 81.5MB in the beginning and 645.7MB in the end (delta: -564.2MB). Peak memory consumption was 683.2MB. Max. memory is 16.1GB. * CodeCheck took 181738.13ms. Allocated memory is still 1.1GB. Free memory was 645.7MB in the beginning and 260.9MB in the end (delta: 384.8MB). Peak memory consumption was 387.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 22:04:38,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf38535f-32a4-4644-93f9-120553ae6bff/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown