./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-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_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/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_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/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_a583a804-ef71-43d3-a650-3e537ea26c14/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 003fec4fbb4e6f7e867001cf119ef358a9e76c4238a42e508f099aaa9fee4e7a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:52:00,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:52:00,619 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-12-05 22:52:00,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:52:00,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:52:00,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:52:00,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:52:00,646 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:52:00,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:52:00,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:52:00,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:52:00,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:52:00,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:52:00,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:52:00,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:52:00,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:52:00,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:52:00,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:52:00,647 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:52:00,647 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:52:00,647 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:52:00,648 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:52:00,648 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:52:00,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:52:00,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:52:00,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:52:00,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:52:00,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:52:00,648 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:52:00,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:52:00,649 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_a583a804-ef71-43d3-a650-3e537ea26c14/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 -> 003fec4fbb4e6f7e867001cf119ef358a9e76c4238a42e508f099aaa9fee4e7a [2024-12-05 22:52:00,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:52:00,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:52:00,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:52:00,906 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:52:00,906 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:52:00,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c [2024-12-05 22:52:03,574 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data/1d6094cc7/ed3c60d46a1e4484a6a6195aa564d3b9/FLAG278baf714 [2024-12-05 22:52:03,964 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:52:03,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c [2024-12-05 22:52:03,989 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data/1d6094cc7/ed3c60d46a1e4484a6a6195aa564d3b9/FLAG278baf714 [2024-12-05 22:52:04,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data/1d6094cc7/ed3c60d46a1e4484a6a6195aa564d3b9 [2024-12-05 22:52:04,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:52:04,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:52:04,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:52:04,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:52:04,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:52:04,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:52:04" (1/1) ... [2024-12-05 22:52:04,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532b2e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:04, skipping insertion in model container [2024-12-05 22:52:04,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:52:04" (1/1) ... [2024-12-05 22:52:04,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:52:04,379 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_a583a804-ef71-43d3-a650-3e537ea26c14/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c[1175,1188] [2024-12-05 22:52:05,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:52:05,076 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:52:05,087 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_a583a804-ef71-43d3-a650-3e537ea26c14/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c[1175,1188] [2024-12-05 22:52:05,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:52:05,608 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:52:05,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05 WrapperNode [2024-12-05 22:52:05,609 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:52:05,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:52:05,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:52:05,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:52:05,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:05,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:07,531 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27355 [2024-12-05 22:52:07,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:52:07,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:52:07,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:52:07,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:52:07,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:07,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:07,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:07,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:08,533 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:08,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:08,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:08,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:08,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:09,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:52:09,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:52:09,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:52:09,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:52:09,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:52:05" (1/1) ... [2024-12-05 22:52:09,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:52:09,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:52:09,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:52:09,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:52:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:52:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 22:52:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:52:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:52:10,383 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:52:10,385 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:53:52,999 INFO L? ?]: Removed 14581 outVars from TransFormulas that were not future-live. [2024-12-05 22:53:52,999 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:54:50,110 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:54:50,110 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 22:54:50,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:54:50 BoogieIcfgContainer [2024-12-05 22:54:50,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:54:50,112 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:54:50,112 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:54:50,119 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:54:50,119 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:54:50" (1/1) ... [2024-12-05 22:54:50,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:54:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:54:50,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-05 22:54:50,166 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-05 22:54:50,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:54:50,167 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:54:50,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:54:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:54:58,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:55:09,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:55:19,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:55:29,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:55:36,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:55:46,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:55:56,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:56:06,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:56:06,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:56:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-12-05 22:56:06,175 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-12-05 22:56:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:56:06,175 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:56:06,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:56:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:56:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:56:24,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:56:35,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:56:46,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:56:56,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:57:06,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:57:13,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:57:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:57:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2024-12-05 22:57:13,358 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2024-12-05 22:57:13,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:57:13,358 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:57:13,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:57:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:57:18,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:57:30,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:57:42,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:57:53,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:58:01,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:58:11,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:58:21,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:58:21,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:21,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 10 states and 15 transitions. [2024-12-05 22:58:21,509 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 15 transitions. [2024-12-05 22:58:21,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:58:21,510 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:21,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:59,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:59:11,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:59:15,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:59:25,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:59:36,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:59:46,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 22:59:46,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:59:46,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 11 states and 18 transitions. [2024-12-05 22:59:46,166 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 18 transitions. [2024-12-05 22:59:46,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:59:46,166 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:59:46,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:59:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:59:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:00:02,445 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-05 23:00:02,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 101 [2024-12-05 23:00:02,446 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:680) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:145) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:460) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:104) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.kojak.UltimateChecker.isSatEdge(UltimateChecker.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.kojak.UltimateChecker.connectOutgoingIfSat(UltimateChecker.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.kojak.UltimateChecker.splitNode(UltimateChecker.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.kojak.UltimateChecker.codeCheck(UltimateChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:469) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 28 more [2024-12-05 23:00:02,449 INFO L158 Benchmark]: Toolchain (without parser) took 478319.57ms. Allocated memory was 142.6MB in the beginning and 5.8GB in the end (delta: 5.7GB). Free memory was 106.5MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 4.0GB. Max. memory is 16.1GB. [2024-12-05 23:00:02,449 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:00:02,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1478.58ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 106.2MB in the beginning and 194.2MB in the end (delta: -88.0MB). Peak memory consumption was 190.3MB. Max. memory is 16.1GB. [2024-12-05 23:00:02,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 1920.96ms. Allocated memory was 419.4MB in the beginning and 1.1GB in the end (delta: 671.1MB). Free memory was 194.2MB in the beginning and 537.6MB in the end (delta: -343.4MB). Peak memory consumption was 478.6MB. Max. memory is 16.1GB. [2024-12-05 23:00:02,451 INFO L158 Benchmark]: Boogie Preprocessor took 1682.11ms. Allocated memory was 1.1GB in the beginning and 3.3GB in the end (delta: 2.2GB). Free memory was 537.6MB in the beginning and 2.5GB in the end (delta: -2.0GB). Peak memory consumption was 285.2MB. Max. memory is 16.1GB. [2024-12-05 23:00:02,451 INFO L158 Benchmark]: RCFGBuilder took 160895.88ms. Allocated memory was 3.3GB in the beginning and 7.7GB in the end (delta: 4.4GB). Free memory was 2.5GB in the beginning and 5.1GB in the end (delta: -2.6GB). Peak memory consumption was 4.5GB. Max. memory is 16.1GB. [2024-12-05 23:00:02,451 INFO L158 Benchmark]: CodeCheck took 312336.74ms. Allocated memory was 7.7GB in the beginning and 5.8GB in the end (delta: -1.8GB). Free memory was 5.1GB in the beginning and 1.8GB in the end (delta: 3.4GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-12-05 23:00:02,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) * 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 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1478.58ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 106.2MB in the beginning and 194.2MB in the end (delta: -88.0MB). Peak memory consumption was 190.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1920.96ms. Allocated memory was 419.4MB in the beginning and 1.1GB in the end (delta: 671.1MB). Free memory was 194.2MB in the beginning and 537.6MB in the end (delta: -343.4MB). Peak memory consumption was 478.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1682.11ms. Allocated memory was 1.1GB in the beginning and 3.3GB in the end (delta: 2.2GB). Free memory was 537.6MB in the beginning and 2.5GB in the end (delta: -2.0GB). Peak memory consumption was 285.2MB. Max. memory is 16.1GB. * RCFGBuilder took 160895.88ms. Allocated memory was 3.3GB in the beginning and 7.7GB in the end (delta: 4.4GB). Free memory was 2.5GB in the beginning and 5.1GB in the end (delta: -2.6GB). Peak memory consumption was 4.5GB. Max. memory is 16.1GB. * CodeCheck took 312336.74ms. Allocated memory was 7.7GB in the beginning and 5.8GB in the end (delta: -1.8GB). Free memory was 5.1GB in the beginning and 1.8GB in the end (delta: 3.4GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/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_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/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_a583a804-ef71-43d3-a650-3e537ea26c14/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 003fec4fbb4e6f7e867001cf119ef358a9e76c4238a42e508f099aaa9fee4e7a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:00:04,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:00:04,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2024-12-05 23:00:04,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:00:04,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:00:04,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:00:04,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:00:04,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:00:04,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:00:04,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:00:04,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:00:04,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:00:04,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:00:04,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:00:04,603 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:00:04,603 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:00:04,603 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:00:04,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:00:04,603 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:00:04,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:00:04,603 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:00:04,604 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:00:04,604 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:00:04,604 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:00:04,604 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:00:04,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:00:04,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:00:04,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:00:04,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:00:04,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:00:04,604 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:00:04,604 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:00:04,605 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:00:04,605 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_a583a804-ef71-43d3-a650-3e537ea26c14/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 -> 003fec4fbb4e6f7e867001cf119ef358a9e76c4238a42e508f099aaa9fee4e7a [2024-12-05 23:00:04,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:00:04,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:00:04,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:00:04,840 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:00:04,840 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:00:04,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c [2024-12-05 23:00:07,551 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data/89f9da43f/f08a71033b3a49409a8f03fd1757834a/FLAGfe6cbd261 [2024-12-05 23:00:07,959 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:00:07,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c [2024-12-05 23:00:08,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data/89f9da43f/f08a71033b3a49409a8f03fd1757834a/FLAGfe6cbd261 [2024-12-05 23:00:08,016 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/data/89f9da43f/f08a71033b3a49409a8f03fd1757834a [2024-12-05 23:00:08,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:00:08,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:00:08,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:00:08,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:00:08,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:00:08,027 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:00:08" (1/1) ... [2024-12-05 23:00:08,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b22eb3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:08, skipping insertion in model container [2024-12-05 23:00:08,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:00:08" (1/1) ... [2024-12-05 23:00:08,124 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:00:08,322 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_a583a804-ef71-43d3-a650-3e537ea26c14/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c[1175,1188] [2024-12-05 23:00:08,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:00:08,825 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:00:08,835 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_a583a804-ef71-43d3-a650-3e537ea26c14/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c[1175,1188] [2024-12-05 23:00:09,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:00:09,238 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:00:09,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09 WrapperNode [2024-12-05 23:00:09,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:00:09,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:00:09,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:00:09,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:00:09,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,507 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7523 [2024-12-05 23:00:09,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:00:09,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:00:09,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:00:09,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:00:09,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,709 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:00:09,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:00:09,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:00:09,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:00:09,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:00:09" (1/1) ... [2024-12-05 23:00:09,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:00:09,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:00:09,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:00:09,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:00:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:00:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:00:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:00:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:00:10,787 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:00:10,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:00:34,108 INFO L? ?]: Removed 566 outVars from TransFormulas that were not future-live. [2024-12-05 23:00:34,108 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:00:34,285 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:00:34,285 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:00:34,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:00:34 BoogieIcfgContainer [2024-12-05 23:00:34,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:00:34,286 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:00:34,286 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:00:34,293 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:00:34,293 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:00:34" (1/1) ... [2024-12-05 23:00:34,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:00:34,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:00:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-05 23:00:34,338 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-05 23:00:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 23:00:34,340 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:00:34,341 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:00:34,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:00:34,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:00:34,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:00:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:00:36,077 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:00:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:00:36,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 23:00:36,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:00:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:00:36,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:00:45,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-05 23:00:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:00:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-12-05 23:00:45,774 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-12-05 23:00:45,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 23:00:45,774 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:00:45,774 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:00:45,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:00:45,777 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:00:45,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a583a804-ef71-43d3-a650-3e537ea26c14/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 23:00:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:00:50,587 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:00:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:00:51,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-05 23:00:51,986 INFO L279 TraceCheckSpWp]: Computing forward predicates...