./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/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_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f36267dccc4da984d652ec1dd4f4e1c108e6606dd42849cd67356e8d4b0d29a6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:50:29,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:50:29,124 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-12-06 05:50:29,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:50:29,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:50:29,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:50:29,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:50:29,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:50:29,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:50:29,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:50:29,150 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:50:29,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:50:29,150 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:50:29,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:50:29,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:50:29,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:50:29,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:50:29,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:50:29,150 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:50:29,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:50:29,151 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:50:29,151 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:50:29,151 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:50:29,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:50:29,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:50:29,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:50:29,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:50:29,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:50:29,151 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:50:29,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:50:29,151 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_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f36267dccc4da984d652ec1dd4f4e1c108e6606dd42849cd67356e8d4b0d29a6 [2024-12-06 05:50:29,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:50:29,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:50:29,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:50:29,393 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:50:29,393 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:50:29,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c [2024-12-06 05:50:31,984 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data/68d121115/db65a05da8a54144ac41fda43212a6fc/FLAG1190cd8a9 [2024-12-06 05:50:32,310 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:50:32,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c [2024-12-06 05:50:32,328 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data/68d121115/db65a05da8a54144ac41fda43212a6fc/FLAG1190cd8a9 [2024-12-06 05:50:32,571 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data/68d121115/db65a05da8a54144ac41fda43212a6fc [2024-12-06 05:50:32,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:50:32,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:50:32,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:50:32,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:50:32,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:50:32,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:50:32" (1/1) ... [2024-12-06 05:50:32,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b14ec55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:32, skipping insertion in model container [2024-12-06 05:50:32,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:50:32" (1/1) ... [2024-12-06 05:50:32,630 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:50:32,793 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_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c[1171,1184] [2024-12-06 05:50:33,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:50:33,136 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:50:33,144 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_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c[1171,1184] [2024-12-06 05:50:33,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:50:33,405 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:50:33,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33 WrapperNode [2024-12-06 05:50:33,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:50:33,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:50:33,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:50:33,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:50:33,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:33,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,116 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 8732 [2024-12-06 05:50:34,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:50:34,117 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:50:34,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:50:34,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:50:34,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,574 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,625 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,810 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:50:34,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:50:34,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:50:34,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:50:34,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:33" (1/1) ... [2024-12-06 05:50:34,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:50:34,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:50:34,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:50:34,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:50:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:50:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:50:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:50:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:50:35,450 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:50:35,452 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:50:46,119 INFO L? ?]: Removed 4747 outVars from TransFormulas that were not future-live. [2024-12-06 05:50:46,120 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:50:56,594 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:50:56,594 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 05:50:56,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:50:56 BoogieIcfgContainer [2024-12-06 05:50:56,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:50:56,595 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:50:56,596 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:50:56,602 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:50:56,602 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:50:56" (1/1) ... [2024-12-06 05:50:56,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:50:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:50:56,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 05:50:56,639 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 05:50:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:50:56,641 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:50:56,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:50:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:51:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:51:13,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:51:23,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:51:29,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:51:40,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:51:47,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:51:57,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:51:57,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:51:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-12-06 05:51:57,360 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-12-06 05:51:57,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:51:57,360 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:51:57,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:51:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:51:59,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:52:09,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:52:20,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:52:22,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:52:28,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:52:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:52:28,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-12-06 05:52:28,442 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-12-06 05:52:28,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 05:52:28,442 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:52:28,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:55:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:55:25,073 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:58:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:58:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:58:39,328 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-06 05:58:39,334 INFO L158 Benchmark]: Toolchain (without parser) took 486759.45ms. Allocated memory was 142.6MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 112.8MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 823.8MB. Max. memory is 16.1GB. [2024-12-06 05:58:39,334 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:58:39,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 831.86ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 80.8MB in the end (delta: 32.0MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. [2024-12-06 05:58:39,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 709.99ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 80.8MB in the beginning and 105.4MB in the end (delta: -24.6MB). Peak memory consumption was 227.5MB. Max. memory is 16.1GB. [2024-12-06 05:58:39,336 INFO L158 Benchmark]: Boogie Preprocessor took 832.54ms. Allocated memory was 318.8MB in the beginning and 729.8MB in the end (delta: 411.0MB). Free memory was 105.4MB in the beginning and 479.5MB in the end (delta: -374.2MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2024-12-06 05:58:39,337 INFO L158 Benchmark]: RCFGBuilder took 21644.47ms. Allocated memory was 729.8MB in the beginning and 1.0GB in the end (delta: 310.4MB). Free memory was 479.5MB in the beginning and 153.8MB in the end (delta: 325.7MB). Peak memory consumption was 755.6MB. Max. memory is 16.1GB. [2024-12-06 05:58:39,337 INFO L158 Benchmark]: CodeCheck took 462736.79ms. Allocated memory was 1.0GB in the beginning and 3.1GB in the end (delta: 2.1GB). Free memory was 153.8MB in the beginning and 2.3GB in the end (delta: -2.1GB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:58:39,341 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 142.6MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 831.86ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 80.8MB in the end (delta: 32.0MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 709.99ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 80.8MB in the beginning and 105.4MB in the end (delta: -24.6MB). Peak memory consumption was 227.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 832.54ms. Allocated memory was 318.8MB in the beginning and 729.8MB in the end (delta: 411.0MB). Free memory was 105.4MB in the beginning and 479.5MB in the end (delta: -374.2MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. * RCFGBuilder took 21644.47ms. Allocated memory was 729.8MB in the beginning and 1.0GB in the end (delta: 310.4MB). Free memory was 479.5MB in the beginning and 153.8MB in the end (delta: 325.7MB). Peak memory consumption was 755.6MB. Max. memory is 16.1GB. * CodeCheck took 462736.79ms. Allocated memory was 1.0GB in the beginning and 3.1GB in the end (delta: 2.1GB). Free memory was 153.8MB in the beginning and 2.3GB in the end (delta: -2.1GB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-06 05:58:39,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/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_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/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_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f36267dccc4da984d652ec1dd4f4e1c108e6606dd42849cd67356e8d4b0d29a6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:58:41,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:58:41,563 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2024-12-06 05:58:41,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:58:41,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:58:41,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:58:41,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:58:41,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:58:41,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:58:41,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:58:41,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:58:41,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:58:41,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:58:41,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:58:41,591 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:58:41,591 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:58:41,592 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:58:41,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:58:41,592 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:58:41,592 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:58:41,592 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:58:41,592 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:58:41,592 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:58:41,592 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:58:41,592 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:58:41,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:58:41,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:58:41,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:58:41,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:58:41,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:58:41,593 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:58:41,593 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:58:41,593 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:58:41,593 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_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f36267dccc4da984d652ec1dd4f4e1c108e6606dd42849cd67356e8d4b0d29a6 [2024-12-06 05:58:41,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:58:41,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:58:41,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:58:41,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:58:41,836 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:58:41,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c [2024-12-06 05:58:44,586 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data/88b2b99e0/df431c98cf9c4cf4a41410f652527220/FLAG97ee155bf [2024-12-06 05:58:44,884 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:58:44,884 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c [2024-12-06 05:58:44,900 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data/88b2b99e0/df431c98cf9c4cf4a41410f652527220/FLAG97ee155bf [2024-12-06 05:58:45,132 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/data/88b2b99e0/df431c98cf9c4cf4a41410f652527220 [2024-12-06 05:58:45,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:58:45,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:58:45,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:58:45,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:58:45,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:58:45,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0e9786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45, skipping insertion in model container [2024-12-06 05:58:45,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:58:45,345 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_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c[1171,1184] [2024-12-06 05:58:45,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:58:45,596 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:58:45,603 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_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.2.prop1-back-serstep.c[1171,1184] [2024-12-06 05:58:45,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:58:45,723 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:58:45,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45 WrapperNode [2024-12-06 05:58:45,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:58:45,724 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:58:45,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:58:45,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:58:45,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,859 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2668 [2024-12-06 05:58:45,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:58:45,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:58:45,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:58:45,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:58:45,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,923 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,964 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:58:45,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:58:45,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:58:45,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:58:45,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:45" (1/1) ... [2024-12-06 05:58:45,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:58:45,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:58:46,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:58:46,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:58:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:58:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:58:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:58:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:58:46,434 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:58:46,435 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:58:49,489 INFO L? ?]: Removed 282 outVars from TransFormulas that were not future-live. [2024-12-06 05:58:49,489 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:58:49,579 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:58:49,579 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 05:58:49,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:58:49 BoogieIcfgContainer [2024-12-06 05:58:49,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:58:49,580 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:58:49,580 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:58:49,590 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:58:49,590 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:58:49" (1/1) ... [2024-12-06 05:58:49,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:58:49,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:58:49,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 05:58:49,643 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 05:58:49,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:58:49,645 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:58:49,646 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:58:49,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:58:49,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:58:49,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:58:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:50,443 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:58:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:50,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 05:58:50,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:58:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:58:50,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 05:58:51,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:58:51,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-12-06 05:58:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-12-06 05:58:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 05:58:51,147 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:58:51,147 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:58:51,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:58:51,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:58:51,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db970c6-b69a-4b5e-8349-fdf3d0f7e1a3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 05:58:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:52,305 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:58:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:52,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-12-06 05:58:52,692 INFO L279 TraceCheckSpWp]: Computing forward predicates...