./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/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 2c6a9bd0e2576d3791a8b5642b4e02aa0fef9ab802e043ac56248e885656131c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:17:41,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:17:41,604 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-12-06 05:17:41,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:17:41,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:17:41,627 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:17:41,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:17:41,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:17:41,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:17:41,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:17:41,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:17:41,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:17:41,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:17:41,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:17:41,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:17:41,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:17:41,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:17:41,630 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:17:41,630 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:17:41,630 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:17:41,630 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:17:41,630 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:17:41,630 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:17:41,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:17:41,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:17:41,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:17:41,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:17:41,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:17:41,631 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:17:41,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:17:41,631 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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/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 -> 2c6a9bd0e2576d3791a8b5642b4e02aa0fef9ab802e043ac56248e885656131c [2024-12-06 05:17:41,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:17:41,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:17:41,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:17:41,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:17:41,869 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:17:41,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c [2024-12-06 05:17:44,458 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data/9d9c8c274/9d0b5c51a5c645279c9cc28e7558c5f7/FLAG8eea62ab7 [2024-12-06 05:17:44,777 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:17:44,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c [2024-12-06 05:17:44,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data/9d9c8c274/9d0b5c51a5c645279c9cc28e7558c5f7/FLAG8eea62ab7 [2024-12-06 05:17:45,039 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data/9d9c8c274/9d0b5c51a5c645279c9cc28e7558c5f7 [2024-12-06 05:17:45,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:17:45,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:17:45,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:17:45,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:17:45,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:17:45,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:45,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6185ee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45, skipping insertion in model container [2024-12-06 05:17:45,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:45,106 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:17:45,278 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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c[1170,1183] [2024-12-06 05:17:45,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:17:45,696 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:17:45,707 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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c[1170,1183] [2024-12-06 05:17:45,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:17:45,988 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:17:45,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45 WrapperNode [2024-12-06 05:17:45,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:17:45,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:17:45,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:17:45,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:17:45,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:46,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:46,848 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9975 [2024-12-06 05:17:46,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:17:46,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:17:46,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:17:46,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:17:46,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:46,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:47,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:47,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:47,396 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:47,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:47,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:47,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:47,588 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:47,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:17:47,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:17:47,740 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:17:47,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:17:47,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:45" (1/1) ... [2024-12-06 05:17:47,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:17:47,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:17:47,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:17:47,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:17:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:17:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:17:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:17:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:17:48,367 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:17:48,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:18:03,149 INFO L? ?]: Removed 5475 outVars from TransFormulas that were not future-live. [2024-12-06 05:18:03,149 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:18:17,207 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:18:17,207 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 05:18:17,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:18:17 BoogieIcfgContainer [2024-12-06 05:18:17,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:18:17,209 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:18:17,209 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:18:17,218 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:18:17,218 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:18:17" (1/1) ... [2024-12-06 05:18:17,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:18:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:18:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 05:18:17,281 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 05:18:17,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:18:17,283 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:18:17,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:18:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:18:23,476 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 05:18:33,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 05:18:43,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 05:18:45,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:18:49,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:18:54,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.74s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:18:55,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:19:05,657 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 05:19:05,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:19:05,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-06 05:19:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-06 05:19:05,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 05:19:05,697 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:19:05,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:24:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:24:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:24:18,967 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 05:24:18,975 INFO L158 Benchmark]: Toolchain (without parser) took 393931.49ms. Allocated memory was 142.6MB in the beginning and 4.0GB in the end (delta: 3.9GB). Free memory was 111.6MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 669.8MB. Max. memory is 16.1GB. [2024-12-06 05:24:18,975 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:24:18,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 945.71ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 66.4MB in the end (delta: 45.0MB). Peak memory consumption was 105.1MB. Max. memory is 16.1GB. [2024-12-06 05:24:18,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 858.91ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 66.4MB in the beginning and 100.2MB in the end (delta: -33.8MB). Peak memory consumption was 231.3MB. Max. memory is 16.1GB. [2024-12-06 05:24:18,977 INFO L158 Benchmark]: Boogie Preprocessor took 889.38ms. Allocated memory was 327.2MB in the beginning and 755.0MB in the end (delta: 427.8MB). Free memory was 100.2MB in the beginning and 475.6MB in the end (delta: -375.5MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. [2024-12-06 05:24:18,978 INFO L158 Benchmark]: RCFGBuilder took 29468.43ms. Allocated memory was 755.0MB in the beginning and 2.2GB in the end (delta: 1.4GB). Free memory was 475.6MB in the beginning and 1.4GB in the end (delta: -889.3MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-12-06 05:24:18,979 INFO L158 Benchmark]: CodeCheck took 361764.05ms. Allocated memory was 2.2GB in the beginning and 4.0GB in the end (delta: 1.8GB). Free memory was 1.4GB in the beginning and 3.3GB in the end (delta: -1.9GB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:24:18,983 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 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 945.71ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 66.4MB in the end (delta: 45.0MB). Peak memory consumption was 105.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 858.91ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 66.4MB in the beginning and 100.2MB in the end (delta: -33.8MB). Peak memory consumption was 231.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 889.38ms. Allocated memory was 327.2MB in the beginning and 755.0MB in the end (delta: 427.8MB). Free memory was 100.2MB in the beginning and 475.6MB in the end (delta: -375.5MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. * RCFGBuilder took 29468.43ms. Allocated memory was 755.0MB in the beginning and 2.2GB in the end (delta: 1.4GB). Free memory was 475.6MB in the beginning and 1.4GB in the end (delta: -889.3MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * CodeCheck took 361764.05ms. Allocated memory was 2.2GB in the beginning and 4.0GB in the end (delta: 1.8GB). Free memory was 1.4GB in the beginning and 3.3GB in the end (delta: -1.9GB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-06 05:24:19,198 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2024-12-06 05:24:19,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/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 2c6a9bd0e2576d3791a8b5642b4e02aa0fef9ab802e043ac56248e885656131c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:24:21,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:24:21,291 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2024-12-06 05:24:21,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:24:21,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:24:21,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:24:21,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:24:21,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:24:21,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:24:21,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:24:21,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:24:21,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:24:21,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:24:21,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:24:21,318 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:24:21,318 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:24:21,318 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:24:21,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:24:21,318 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:24:21,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:24:21,318 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:24:21,319 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:24:21,319 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:24:21,319 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:24:21,319 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:24:21,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:24:21,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:24:21,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:24:21,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:24:21,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:24:21,319 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:24:21,320 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:24:21,320 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:24:21,320 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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/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 -> 2c6a9bd0e2576d3791a8b5642b4e02aa0fef9ab802e043ac56248e885656131c [2024-12-06 05:24:21,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:24:21,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:24:21,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:24:21,561 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:24:21,561 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:24:21,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c [2024-12-06 05:24:24,235 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data/89118e5dc/9123107955424b4e9b1b4fc101a5bc09/FLAGd852deed9 [2024-12-06 05:24:24,517 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:24:24,517 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c [2024-12-06 05:24:24,537 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data/89118e5dc/9123107955424b4e9b1b4fc101a5bc09/FLAGd852deed9 [2024-12-06 05:24:24,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/data/89118e5dc/9123107955424b4e9b1b4fc101a5bc09 [2024-12-06 05:24:24,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:24:24,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:24:24,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:24:24,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:24:24,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:24:24,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:24:24" (1/1) ... [2024-12-06 05:24:24,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26569014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:24, skipping insertion in model container [2024-12-06 05:24:24,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:24:24" (1/1) ... [2024-12-06 05:24:24,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:24:24,785 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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c[1170,1183] [2024-12-06 05:24:25,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:24:25,103 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:24:25,112 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_547fa7bc-2293-4e0a-adda-5dbc89bc0645/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-back-serstep.c[1170,1183] [2024-12-06 05:24:25,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:24:25,282 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:24:25,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25 WrapperNode [2024-12-06 05:24:25,283 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:24:25,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:24:25,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:24:25,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:24:25,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,434 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3095 [2024-12-06 05:24:25,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:24:25,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:24:25,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:24:25,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:24:25,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,466 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,514 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:24:25,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:24:25,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:24:25,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:24:25,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:25" (1/1) ... [2024-12-06 05:24:25,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:24:25,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:24:25,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:24:25,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:24:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:24:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:24:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:24:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:24:26,094 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:24:26,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:24:29,615 INFO L? ?]: Removed 291 outVars from TransFormulas that were not future-live. [2024-12-06 05:24:29,615 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:24:29,680 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:24:29,681 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 05:24:29,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:24:29 BoogieIcfgContainer [2024-12-06 05:24:29,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:24:29,682 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:24:29,682 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:24:29,689 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:24:29,689 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:24:29" (1/1) ... [2024-12-06 05:24:29,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:24:29,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:24:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 05:24:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 05:24:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:24:29,732 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:24:29,733 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:24:29,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:24:29,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:24:29,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:24:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:24:30,618 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:24:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:24:30,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-06 05:24:30,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:24:30,934 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 05:24:30,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 05:24:31,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:24:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-12-06 05:24:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-12-06 05:24:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 05:24:31,255 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:24:31,255 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:24:31,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:24:31,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:24:31,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547fa7bc-2293-4e0a-adda-5dbc89bc0645/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 05:24:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:24:32,578 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:24:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:24:33,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-12-06 05:24:33,023 INFO L279 TraceCheckSpWp]: Computing forward predicates...