./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/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 b22847b49150cd7cc72a08bbf698c81c9da1187f7a650289659111a81b5c540f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:48:19,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:48:19,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 21:48:19,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:48:19,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:48:19,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:48:19,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:48:19,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:48:19,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:48:19,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:48:19,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:48:19,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:48:19,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:48:19,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:48:19,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:48:19,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:48:19,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:48:19,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:48:19,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:48:19,667 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:48:19,667 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:48:19,668 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:48:19,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:48:19,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:48:19,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:48:19,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:48:19,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:48:19,671 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:48:19,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:48:19,672 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:48:19,673 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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b22847b49150cd7cc72a08bbf698c81c9da1187f7a650289659111a81b5c540f [2023-12-02 21:48:19,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:48:19,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:48:19,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:48:19,981 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:48:19,981 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:48:19,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c [2023-12-02 21:48:23,424 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:48:23,780 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:48:23,781 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c [2023-12-02 21:48:23,806 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/data/e23a0cec0/91a42a1855304922922012b1195a23d0/FLAGd70fe662b [2023-12-02 21:48:23,824 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/data/e23a0cec0/91a42a1855304922922012b1195a23d0 [2023-12-02 21:48:23,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:48:23,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:48:23,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:48:23,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:48:23,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:48:23,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:48:23" (1/1) ... [2023-12-02 21:48:23,839 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629ea1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:23, skipping insertion in model container [2023-12-02 21:48:23,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:48:23" (1/1) ... [2023-12-02 21:48:23,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:48:24,162 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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c[1260,1273] [2023-12-02 21:48:24,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:48:24,655 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:48:24,667 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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c[1260,1273] [2023-12-02 21:48:24,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:48:24,865 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:48:24,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24 WrapperNode [2023-12-02 21:48:24,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:48:24,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:48:24,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:48:24,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:48:24,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:24,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:25,489 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5211 [2023-12-02 21:48:25,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:48:25,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:48:25,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:48:25,492 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:48:25,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:25,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:25,739 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:25,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:25,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:25,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:26,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:26,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:26,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:48:26,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:48:26,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:48:26,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:48:26,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:24" (1/1) ... [2023-12-02 21:48:26,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:48:26,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:48:26,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:48:26,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:48:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:48:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:48:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:48:26,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:48:26,657 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:48:26,660 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:48:30,849 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:48:38,829 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:48:38,830 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:48:38,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:48:38 BoogieIcfgContainer [2023-12-02 21:48:38,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:48:38,832 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:48:38,833 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:48:38,842 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:48:38,842 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:48:38" (1/1) ... [2023-12-02 21:48:38,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:48:38,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:38,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:48:38,903 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:48:38,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:48:38,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:38,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:42,595 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 21:48:52,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:49:02,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:49:04,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:04,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 21:49:04,657 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 21:49:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:49:04,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:04,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:53:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:53:02,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 21:57:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:57:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:57:47,254 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 21:57:47,257 INFO L158 Benchmark]: Toolchain (without parser) took 563427.61ms. Allocated memory was 151.0MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 99.7MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2023-12-02 21:57:47,257 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:57:47,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1035.40ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 99.3MB in the beginning and 124.3MB in the end (delta: -25.0MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2023-12-02 21:57:47,258 INFO L158 Benchmark]: Boogie Procedure Inliner took 623.44ms. Allocated memory is still 205.5MB. Free memory was 124.3MB in the beginning and 76.9MB in the end (delta: 47.4MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. [2023-12-02 21:57:47,259 INFO L158 Benchmark]: Boogie Preprocessor took 676.53ms. Allocated memory was 205.5MB in the beginning and 411.0MB in the end (delta: 205.5MB). Free memory was 76.9MB in the beginning and 273.4MB in the end (delta: -196.5MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2023-12-02 21:57:47,260 INFO L158 Benchmark]: RCFGBuilder took 12663.26ms. Allocated memory was 411.0MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 272.4MB in the beginning and 1.2GB in the end (delta: -926.9MB). Peak memory consumption was 582.0MB. Max. memory is 16.1GB. [2023-12-02 21:57:47,261 INFO L158 Benchmark]: CodeCheck took 548423.60ms. Allocated memory was 1.6GB in the beginning and 3.1GB in the end (delta: 1.5GB). Free memory was 1.2GB in the beginning and 1.4GB in the end (delta: -196.0MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2023-12-02 21:57:47,264 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 0.22ms. Allocated memory is still 102.8MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1035.40ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 99.3MB in the beginning and 124.3MB in the end (delta: -25.0MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 623.44ms. Allocated memory is still 205.5MB. Free memory was 124.3MB in the beginning and 76.9MB in the end (delta: 47.4MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 676.53ms. Allocated memory was 205.5MB in the beginning and 411.0MB in the end (delta: 205.5MB). Free memory was 76.9MB in the beginning and 273.4MB in the end (delta: -196.5MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * RCFGBuilder took 12663.26ms. Allocated memory was 411.0MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 272.4MB in the beginning and 1.2GB in the end (delta: -926.9MB). Peak memory consumption was 582.0MB. Max. memory is 16.1GB. * CodeCheck took 548423.60ms. Allocated memory was 1.6GB in the beginning and 3.1GB in the end (delta: 1.5GB). Free memory was 1.2GB in the beginning and 1.4GB in the end (delta: -196.0MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:57:47,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/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 b22847b49150cd7cc72a08bbf698c81c9da1187f7a650289659111a81b5c540f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:57:49,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:57:49,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 21:57:49,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:57:49,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:57:49,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:57:49,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:57:49,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:57:49,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:57:49,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:57:49,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:57:49,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:57:49,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:57:49,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:57:49,384 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:57:49,385 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:57:49,385 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:57:49,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:57:49,387 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:57:49,387 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:57:49,388 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:57:49,392 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:57:49,392 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:49,393 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:57:49,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:57:49,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:57:49,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:57:49,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:57:49,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:57:49,396 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:57:49,396 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:49,396 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:57:49,397 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:57:49,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:57:49,397 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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b22847b49150cd7cc72a08bbf698c81c9da1187f7a650289659111a81b5c540f [2023-12-02 21:57:49,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:57:49,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:57:49,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:57:49,688 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:57:49,688 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:57:49,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c [2023-12-02 21:57:52,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:57:52,728 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:57:52,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c [2023-12-02 21:57:52,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/data/90d5390e2/042cea1010d44652912f0b4f50e76331/FLAG4c74afc8a [2023-12-02 21:57:52,764 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/data/90d5390e2/042cea1010d44652912f0b4f50e76331 [2023-12-02 21:57:52,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:57:52,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:57:52,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:57:52,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:57:52,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:57:52,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:57:52" (1/1) ... [2023-12-02 21:57:52,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a07b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:52, skipping insertion in model container [2023-12-02 21:57:52,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:57:52" (1/1) ... [2023-12-02 21:57:52,863 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:57:53,053 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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c[1260,1273] [2023-12-02 21:57:53,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:57:53,340 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:57:53,352 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_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p7.c[1260,1273] [2023-12-02 21:57:53,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:57:53,478 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:57:53,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53 WrapperNode [2023-12-02 21:57:53,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:57:53,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:57:53,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:57:53,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:57:53,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,643 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1841 [2023-12-02 21:57:53,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:57:53,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:57:53,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:57:53,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:57:53,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:57:53,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:57:53,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:57:53,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:57:53,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:57:53" (1/1) ... [2023-12-02 21:57:53,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:57:53,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:57:53,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:57:53,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:57:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:57:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:57:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:57:53,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:57:54,196 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:57:54,199 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:57:56,640 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:57:56,761 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:57:56,761 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:57:56,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:57:56 BoogieIcfgContainer [2023-12-02 21:57:56,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:57:56,764 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:57:56,764 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:57:56,774 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:57:56,774 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:57:56" (1/1) ... [2023-12-02 21:57:56,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:57:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:56,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:57:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:57:56,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:57:56,836 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:56,837 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:56,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:56,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:56,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:57:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:57,421 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:57,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 21:57:57,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:57,747 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 21:57:57,753 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:57:57,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:57:58,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:58,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 21:57:58,229 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 21:57:58,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:57:58,229 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:58,230 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:58,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:58,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:58,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:57:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:59,541 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:00,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 104 conjunts are in the unsatisfiable core [2023-12-02 21:58:00,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:01,585 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 21:58:01,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:58:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:03,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 12 states and 20 transitions. [2023-12-02 21:58:03,642 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 20 transitions. [2023-12-02 21:58:03,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:58:03,644 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:03,644 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:03,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:03,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:03,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:58:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:05,487 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:06,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 3073 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-02 21:58:06,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:58:06,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 21:58:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 19 states and 43 transitions. [2023-12-02 21:58:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 43 transitions. [2023-12-02 21:58:13,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:58:13,188 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:13,188 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:13,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:13,189 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:13,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 21:58:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:14,918 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:15,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 3073 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 21:58:15,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:58:16,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 21:58:22,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 25 states and 55 transitions. [2023-12-02 21:58:22,735 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 55 transitions. [2023-12-02 21:58:22,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 21:58:22,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:22,735 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:22,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:22,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:22,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 21:58:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:25,138 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:26,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 4539 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-02 21:58:26,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:58:27,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 21:58:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 31 states and 69 transitions. [2023-12-02 21:58:34,271 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 69 transitions. [2023-12-02 21:58:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 21:58:34,272 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:34,272 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:34,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:34,273 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:34,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 21:58:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:36,770 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:37,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 4539 conjuncts, 60 conjunts are in the unsatisfiable core [2023-12-02 21:58:37,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:58:38,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 21:58:43,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:43,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 34 states and 79 transitions. [2023-12-02 21:58:43,076 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 79 transitions. [2023-12-02 21:58:43,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 21:58:43,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:43,077 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:43,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:43,078 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:43,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 21:58:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:45,486 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:46,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 4539 conjuncts, 884 conjunts are in the unsatisfiable core [2023-12-02 21:58:46,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:00:35,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-02 22:00:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:48,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 43 states and 112 transitions. [2023-12-02 22:00:48,360 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 112 transitions. [2023-12-02 22:00:48,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 22:00:48,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:48,361 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:48,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:48,362 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:48,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bca79f6-549e-42f8-9d22-d1c05e4deaf9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 22:00:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:51,872 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:53,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 6005 conjuncts, 1118 conjunts are in the unsatisfiable core [2023-12-02 22:00:53,769 INFO L285 TraceCheckSpWp]: Computing forward predicates...