./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/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_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/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_4787148d-b7f4-4cb6-babb-4f673cb56523/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 8c332d68cb028f73a0956d8476d86631f99d300b58627ad7418ed2c2ca15e8e8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:59:59,448 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:59:59,526 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 20:59:59,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:59:59,531 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 20:59:59,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:59:59,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:59:59,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 20:59:59,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:59:59,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:59:59,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:59:59,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:59:59,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:59:59,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:59:59,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:59:59,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:59:59,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:59:59,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:59:59,575 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:59:59,576 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 20:59:59,576 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 20:59:59,577 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 20:59:59,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:59:59,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:59:59,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:59:59,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:59:59,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:59:59,580 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 20:59:59,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:59:59,580 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:59:59,581 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_4787148d-b7f4-4cb6-babb-4f673cb56523/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c332d68cb028f73a0956d8476d86631f99d300b58627ad7418ed2c2ca15e8e8 [2023-12-02 20:59:59,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:59:59,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:59:59,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:59:59,851 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:59:59,852 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:59:59,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c [2023-12-02 21:00:02,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:00:02,903 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:00:02,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c [2023-12-02 21:00:02,923 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/data/a321dffce/18b8547bbbb641309cefb07cf5e30f8e/FLAG1d7499485 [2023-12-02 21:00:02,938 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/data/a321dffce/18b8547bbbb641309cefb07cf5e30f8e [2023-12-02 21:00:02,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:00:02,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:00:02,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:00:02,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:00:02,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:00:02,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:00:02" (1/1) ... [2023-12-02 21:00:02,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ac025f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:02, skipping insertion in model container [2023-12-02 21:00:02,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:00:02" (1/1) ... [2023-12-02 21:00:03,024 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:00:03,213 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_4787148d-b7f4-4cb6-babb-4f673cb56523/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c[1172,1185] [2023-12-02 21:00:03,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:00:03,565 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:00:03,578 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_4787148d-b7f4-4cb6-babb-4f673cb56523/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c[1172,1185] [2023-12-02 21:00:03,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:00:03,802 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:00:03,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03 WrapperNode [2023-12-02 21:00:03,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:00:03,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:00:03,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:00:03,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:00:03,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:03,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,387 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5046 [2023-12-02 21:00:04,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:00:04,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:00:04,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:00:04,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:00:04,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:00:04,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:00:04,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:00:04,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:00:04,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:03" (1/1) ... [2023-12-02 21:00:04,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:00:04,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:00:04,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:00:04,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:00:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:00:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:00:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:00:04,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:00:05,327 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:00:05,329 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:00:08,597 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:00:14,513 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:00:14,513 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:00:14,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:00:14 BoogieIcfgContainer [2023-12-02 21:00:14,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:00:14,515 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:00:14,515 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:00:14,522 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:00:14,523 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:00:14" (1/1) ... [2023-12-02 21:00:14,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:00:14,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:00:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:00:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:00:14,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:00:14,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:00:14,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:00:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:17,305 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 21:00:27,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:00:37,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:00:39,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:00:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:00:39,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 21:00:39,837 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 21:00:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:00:39,837 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:00:39,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:00:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:00:51,149 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 21:00:51,153 INFO L158 Benchmark]: Toolchain (without parser) took 48209.75ms. Allocated memory was 180.4MB in the beginning and 1.1GB in the end (delta: 893.4MB). Free memory was 146.1MB in the beginning and 272.9MB in the end (delta: -126.9MB). Peak memory consumption was 767.4MB. Max. memory is 16.1GB. [2023-12-02 21:00:51,153 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:00:51,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 859.33ms. Allocated memory is still 180.4MB. Free memory was 146.1MB in the beginning and 123.3MB in the end (delta: 22.8MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2023-12-02 21:00:51,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 583.77ms. Allocated memory was 180.4MB in the beginning and 276.8MB in the end (delta: 96.5MB). Free memory was 123.3MB in the beginning and 156.0MB in the end (delta: -32.7MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. [2023-12-02 21:00:51,155 INFO L158 Benchmark]: Boogie Preprocessor took 479.27ms. Allocated memory is still 276.8MB. Free memory was 156.0MB in the beginning and 145.3MB in the end (delta: 10.7MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2023-12-02 21:00:51,156 INFO L158 Benchmark]: RCFGBuilder took 9645.99ms. Allocated memory was 276.8MB in the beginning and 1.1GB in the end (delta: 796.9MB). Free memory was 145.3MB in the beginning and 494.0MB in the end (delta: -348.7MB). Peak memory consumption was 602.2MB. Max. memory is 16.1GB. [2023-12-02 21:00:51,156 INFO L158 Benchmark]: CodeCheck took 36636.76ms. Allocated memory is still 1.1GB. Free memory was 494.0MB in the beginning and 272.9MB in the end (delta: 221.1MB). Peak memory consumption was 222.1MB. Max. memory is 16.1GB. [2023-12-02 21:00:51,160 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 0.15ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 859.33ms. Allocated memory is still 180.4MB. Free memory was 146.1MB in the beginning and 123.3MB in the end (delta: 22.8MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 583.77ms. Allocated memory was 180.4MB in the beginning and 276.8MB in the end (delta: 96.5MB). Free memory was 123.3MB in the beginning and 156.0MB in the end (delta: -32.7MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 479.27ms. Allocated memory is still 276.8MB. Free memory was 156.0MB in the beginning and 145.3MB in the end (delta: 10.7MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. * RCFGBuilder took 9645.99ms. Allocated memory was 276.8MB in the beginning and 1.1GB in the end (delta: 796.9MB). Free memory was 145.3MB in the beginning and 494.0MB in the end (delta: -348.7MB). Peak memory consumption was 602.2MB. Max. memory is 16.1GB. * CodeCheck took 36636.76ms. Allocated memory is still 1.1GB. Free memory was 494.0MB in the beginning and 272.9MB in the end (delta: 221.1MB). Peak memory consumption was 222.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:00:51,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/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_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/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_4787148d-b7f4-4cb6-babb-4f673cb56523/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 8c332d68cb028f73a0956d8476d86631f99d300b58627ad7418ed2c2ca15e8e8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:00:53,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:00:53,196 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 21:00:53,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:00:53,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:00:53,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:00:53,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:00:53,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:00:53,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:00:53,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:00:53,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:00:53,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:00:53,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:00:53,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:00:53,239 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:00:53,240 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:00:53,241 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:00:53,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:00:53,242 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:00:53,242 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:00:53,243 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:00:53,243 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:00:53,244 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:00:53,244 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:00:53,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:00:53,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:00:53,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:00:53,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:00:53,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:00:53,247 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:00:53,247 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:00:53,248 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:00:53,248 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:00:53,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:00:53,249 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_4787148d-b7f4-4cb6-babb-4f673cb56523/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c332d68cb028f73a0956d8476d86631f99d300b58627ad7418ed2c2ca15e8e8 [2023-12-02 21:00:53,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:00:53,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:00:53,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:00:53,578 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:00:53,578 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:00:53,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c [2023-12-02 21:00:56,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:00:56,762 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:00:56,763 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c [2023-12-02 21:00:56,781 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/data/2e04e2fe1/3818dcdfa8b14479a2bcd9a1145c6583/FLAG8b53b0c12 [2023-12-02 21:00:56,795 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/data/2e04e2fe1/3818dcdfa8b14479a2bcd9a1145c6583 [2023-12-02 21:00:56,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:00:56,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:00:56,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:00:56,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:00:56,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:00:56,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:00:56" (1/1) ... [2023-12-02 21:00:56,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612001ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:56, skipping insertion in model container [2023-12-02 21:00:56,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:00:56" (1/1) ... [2023-12-02 21:00:56,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:00:57,078 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_4787148d-b7f4-4cb6-babb-4f673cb56523/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c[1172,1185] [2023-12-02 21:00:57,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:00:57,349 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:00:57,362 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_4787148d-b7f4-4cb6-babb-4f673cb56523/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.3.prop1-back-serstep.c[1172,1185] [2023-12-02 21:00:57,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:00:57,513 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:00:57,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57 WrapperNode [2023-12-02 21:00:57,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:00:57,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:00:57,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:00:57,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:00:57,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,678 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1992 [2023-12-02 21:00:57,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:00:57,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:00:57,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:00:57,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:00:57,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,771 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:00:57,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:00:57,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:00:57,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:00:57,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:57" (1/1) ... [2023-12-02 21:00:57,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:00:57,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:00:57,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:00:57,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:00:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:00:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:00:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:00:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:00:58,274 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:00:58,277 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:01:02,018 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:01:02,157 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:01:02,157 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:01:02,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:02 BoogieIcfgContainer [2023-12-02 21:01:02,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:01:02,159 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:01:02,159 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:01:02,169 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:01:02,169 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:01:02,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:02,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:01:02,230 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:01:02,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:01:02,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:02,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:01:02,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:01:02,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:01:02,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:01:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:02,903 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:01:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:03,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:01:03,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:03,199 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 21:01:03,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:01:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 21:01:03,956 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 21:01:03,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:01:03,956 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:03,957 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:01:03,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:01:03,958 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:01:03,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:01:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:05,521 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:01:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:06,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 1867 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 21:01:06,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:06,457 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 21:01:06,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:01:08,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:01:10,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:01:12,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:01:14,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:01:17,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:01:17,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 21:01:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 21:01:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:01:17,350 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:17,351 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:01:17,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:01:17,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:01:17,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4787148d-b7f4-4cb6-babb-4f673cb56523/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:01:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:19,856 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:01:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:20,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 3529 conjuncts, 394 conjunts are in the unsatisfiable core [2023-12-02 21:01:20,933 INFO L285 TraceCheckSpWp]: Computing forward predicates...