./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:51:31,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:51:31,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:51:31,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:51:31,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:51:31,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:51:31,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:51:31,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:51:31,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:51:31,948 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:51:31,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:51:31,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:51:31,948 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:51:31,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:51:31,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:51:31,949 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:51:31,949 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:51:31,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:51:31,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:51:31,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:51:31,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:51:31,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:51:31,950 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:51:31,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:51:31,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 [2024-12-05 23:51:32,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:51:32,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:51:32,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:51:32,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:51:32,192 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:51:32,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2024-12-05 23:51:34,898 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data/397388738/d8d2a5c5de314cb19a2c38da62e4e605/FLAG315b527b3 [2024-12-05 23:51:35,137 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:51:35,137 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2024-12-05 23:51:35,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data/397388738/d8d2a5c5de314cb19a2c38da62e4e605/FLAG315b527b3 [2024-12-05 23:51:35,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data/397388738/d8d2a5c5de314cb19a2c38da62e4e605 [2024-12-05 23:51:35,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:51:35,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:51:35,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:51:35,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:51:35,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:51:35,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b49b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35, skipping insertion in model container [2024-12-05 23:51:35,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:51:35,453 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2024-12-05 23:51:35,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:51:35,465 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:51:35,500 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2024-12-05 23:51:35,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:51:35,525 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:51:35,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35 WrapperNode [2024-12-05 23:51:35,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:51:35,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:51:35,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:51:35,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:51:35,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,561 INFO L138 Inliner]: procedures = 123, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2024-12-05 23:51:35,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:51:35,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:51:35,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:51:35,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:51:35,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,577 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:51:35,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:51:35,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:51:35,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:51:35,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:51:35,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:51:35,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:51:35,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:51:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 23:51:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 23:51:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 23:51:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:51:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-05 23:51:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-05 23:51:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 23:51:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:51:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:51:35,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:51:35,712 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:51:35,713 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:51:35,868 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-12-05 23:51:35,868 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:51:35,950 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:51:35,951 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-05 23:51:35,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:51:35 BoogieIcfgContainer [2024-12-05 23:51:35,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:51:35,952 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:51:35,952 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:51:35,959 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:51:35,959 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:51:35" (1/1) ... [2024-12-05 23:51:35,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:51:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:51:36,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2024-12-05 23:51:36,001 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2024-12-05 23:51:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 23:51:36,002 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:51:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:51:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:51:36,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:51:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:51:36,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2024-12-05 23:51:36,249 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2024-12-05 23:51:36,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:51:36,249 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:51:36,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:51:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:51:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:51:36,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:51:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-12-05 23:51:36,574 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-12-05 23:51:36,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 23:51:36,574 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:51:36,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:51:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:51:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:51:36,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:51:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-12-05 23:51:36,894 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-12-05 23:51:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 23:51:36,894 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:51:36,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:51:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:51:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:51:37,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:51:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2024-12-05 23:51:37,256 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2024-12-05 23:51:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:51:37,256 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:51:37,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:51:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:51:37,455 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:51:37,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:51:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2024-12-05 23:51:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2024-12-05 23:51:37,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-05 23:51:37,645 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:51:37,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:51:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:51:37,761 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:51:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:51:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:51:46,451 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:51:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:51:56,512 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-05 23:51:56,516 INFO L158 Benchmark]: Toolchain (without parser) took 21352.72ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 117.9MB in the beginning and 361.6MB in the end (delta: -243.7MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2024-12-05 23:51:56,516 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:51:56,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.58ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 100.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:51:56,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.06ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 98.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:51:56,517 INFO L158 Benchmark]: Boogie Preprocessor took 24.04ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:51:56,517 INFO L158 Benchmark]: RCFGBuilder took 364.97ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 77.1MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-05 23:51:56,518 INFO L158 Benchmark]: CodeCheck took 20563.19ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 77.1MB in the beginning and 361.6MB in the end (delta: -284.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:51:56,519 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.58ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 100.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.06ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 98.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.04ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 364.97ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 77.1MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 20563.19ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 77.1MB in the beginning and 361.6MB in the end (delta: -284.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-05 23:51:56,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:51:58,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:51:58,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-12-05 23:51:58,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:51:58,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:51:58,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:51:58,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:51:58,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:51:58,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:51:58,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:51:58,613 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:51:58,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:51:58,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:51:58,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:51:58,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:51:58,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:51:58,613 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:51:58,613 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:51:58,614 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:51:58,614 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:51:58,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:51:58,614 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:51:58,614 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:51:58,614 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:51:58,614 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:51:58,614 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:51:58,614 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:51:58,615 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:51:58,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:51:58,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:51:58,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:51:58,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:51:58,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:51:58,615 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:51:58,615 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:51:58,615 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:51:58,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 [2024-12-05 23:51:58,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:51:58,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:51:58,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:51:58,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:51:58,851 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:51:58,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2024-12-05 23:52:01,474 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data/a5ef3c65a/249d9bdc69a9483491020d6c2bfe41ab/FLAG52a7d98f6 [2024-12-05 23:52:01,747 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:52:01,747 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2024-12-05 23:52:01,760 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data/a5ef3c65a/249d9bdc69a9483491020d6c2bfe41ab/FLAG52a7d98f6 [2024-12-05 23:52:02,063 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/data/a5ef3c65a/249d9bdc69a9483491020d6c2bfe41ab [2024-12-05 23:52:02,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:52:02,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:52:02,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:52:02,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:52:02,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:52:02,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50891e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02, skipping insertion in model container [2024-12-05 23:52:02,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:52:02,299 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2024-12-05 23:52:02,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:52:02,312 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:52:02,352 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2024-12-05 23:52:02,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:52:02,374 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:52:02,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02 WrapperNode [2024-12-05 23:52:02,374 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:52:02,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:52:02,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:52:02,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:52:02,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,408 INFO L138 Inliner]: procedures = 126, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2024-12-05 23:52:02,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:52:02,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:52:02,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:52:02,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:52:02,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,426 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:52:02,436 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:52:02,436 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:52:02,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:52:02,437 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:02" (1/1) ... [2024-12-05 23:52:02,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:52:02,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:52:02,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:52:02,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:52:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-05 23:52:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 23:52:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:52:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-05 23:52:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-05 23:52:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 23:52:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-05 23:52:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:52:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:52:02,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:52:02,568 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:52:02,570 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:52:03,112 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-12-05 23:52:03,112 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:52:03,203 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:52:03,204 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-05 23:52:03,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:52:03 BoogieIcfgContainer [2024-12-05 23:52:03,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:52:03,205 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:52:03,205 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:52:03,212 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:52:03,212 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:52:03" (1/1) ... [2024-12-05 23:52:03,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:52:03,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:03,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2024-12-05 23:52:03,253 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2024-12-05 23:52:03,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 23:52:03,254 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:03,255 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:52:03,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:52:03,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:52:03,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:52:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:03,358 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:52:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:03,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-05 23:52:03,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:03,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:52:03,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:52:04,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:04,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2024-12-05 23:52:04,198 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2024-12-05 23:52:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 23:52:04,198 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:04,198 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:52:04,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:52:04,200 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:52:04,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 23:52:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:04,274 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:52:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:04,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-05 23:52:04,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:04,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:52:04,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-05 23:52:05,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:05,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2024-12-05 23:52:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2024-12-05 23:52:05,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:52:05,917 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:05,918 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:52:05,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:52:05,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:52:05,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-05 23:52:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:06,048 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:52:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:06,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-05 23:52:06,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:06,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:52:06,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-05 23:52:07,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 23:52:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:08,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-12-05 23:52:08,428 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-12-05 23:52:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 23:52:08,428 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:08,428 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:52:08,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:52:08,430 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:52:08,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-05 23:52:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:08,604 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:52:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:08,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-05 23:52:08,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:52:08,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-05 23:52:11,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:11,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-12-05 23:52:11,584 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-12-05 23:52:11,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 23:52:11,584 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:11,584 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:52:11,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:52:11,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:52:11,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-05 23:52:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:11,801 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:52:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:11,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 23:52:11,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:52:11,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-05 23:52:14,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 23:52:15,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2024-12-05 23:52:15,307 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2024-12-05 23:52:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:52:15,307 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:15,307 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:52:15,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:52:15,309 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:52:15,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-05 23:52:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:15,556 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:52:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:15,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 23:52:15,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:15,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:52:15,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-05 23:52:18,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 23:52:19,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:19,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-12-05 23:52:19,923 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-12-05 23:52:19,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-05 23:52:19,923 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:19,923 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:52:19,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:52:19,925 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:52:19,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-05 23:52:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:52:21,889 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:52:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:52:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:52:34,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-05 23:52:34,037 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-05 23:52:34,041 INFO L158 Benchmark]: Toolchain (without parser) took 31975.10ms. Allocated memory is still 92.3MB. Free memory was 68.5MB in the beginning and 36.6MB in the end (delta: 32.0MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2024-12-05 23:52:34,042 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:52:34,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.86ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 49.9MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:52:34,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.86ms. Allocated memory is still 92.3MB. Free memory was 49.9MB in the beginning and 48.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:52:34,043 INFO L158 Benchmark]: Boogie Preprocessor took 26.99ms. Allocated memory is still 92.3MB. Free memory was 48.2MB in the beginning and 46.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:52:34,043 INFO L158 Benchmark]: RCFGBuilder took 768.04ms. Allocated memory is still 92.3MB. Free memory was 46.6MB in the beginning and 51.8MB in the end (delta: -5.2MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-12-05 23:52:34,043 INFO L158 Benchmark]: CodeCheck took 30835.78ms. Allocated memory is still 92.3MB. Free memory was 51.8MB in the beginning and 36.6MB in the end (delta: 15.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-12-05 23:52:34,044 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.86ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 49.9MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.86ms. Allocated memory is still 92.3MB. Free memory was 49.9MB in the beginning and 48.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.99ms. Allocated memory is still 92.3MB. Free memory was 48.2MB in the beginning and 46.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 768.04ms. Allocated memory is still 92.3MB. Free memory was 46.6MB in the beginning and 51.8MB in the end (delta: -5.2MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * CodeCheck took 30835.78ms. Allocated memory is still 92.3MB. Free memory was 51.8MB in the beginning and 36.6MB in the end (delta: 15.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-05 23:52:34,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f9c14e-d572-4a60-9883-95e87e162edd/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown