./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/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_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 003fec4fbb4e6f7e867001cf119ef358a9e76c4238a42e508f099aaa9fee4e7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:42:19,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:42:19,141 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 01:42:19,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:42:19,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:42:19,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:42:19,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:42:19,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:42:19,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:42:19,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:42:19,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:42:19,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:42:19,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:42:19,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:42:19,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:42:19,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:42:19,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:42:19,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:42:19,177 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:42:19,177 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:42:19,178 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:42:19,181 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:42:19,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:42:19,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:42:19,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:42:19,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:42:19,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:42:19,183 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:42:19,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:42:19,184 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:42:19,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 003fec4fbb4e6f7e867001cf119ef358a9e76c4238a42e508f099aaa9fee4e7a [2023-12-03 01:42:19,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:42:19,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:42:19,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:42:19,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:42:19,410 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:42:19,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c [2023-12-03 01:42:22,389 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:42:22,819 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:42:22,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c [2023-12-03 01:42:22,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/data/03adf4f48/4d3c8d34114549daa2da290361489e56/FLAG00333ee5a [2023-12-03 01:42:22,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/data/03adf4f48/4d3c8d34114549daa2da290361489e56 [2023-12-03 01:42:22,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:42:22,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:42:22,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:42:22,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:42:22,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:42:22,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:42:22" (1/1) ... [2023-12-03 01:42:22,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40027d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:22, skipping insertion in model container [2023-12-03 01:42:22,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:42:22" (1/1) ... [2023-12-03 01:42:23,026 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:42:23,269 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c[1175,1188] [2023-12-03 01:42:24,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:42:24,008 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:42:24,017 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c[1175,1188] [2023-12-03 01:42:24,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:42:24,637 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:42:24,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24 WrapperNode [2023-12-03 01:42:24,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:42:24,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:42:24,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:42:24,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:42:24,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:24,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:27,026 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31374 [2023-12-03 01:42:27,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:42:27,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:42:27,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:42:27,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:42:27,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:27,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:27,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:27,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:28,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:28,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:28,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:28,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:29,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:42:29,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:42:29,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:42:29,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:42:29,220 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:42:24" (1/1) ... [2023-12-03 01:42:29,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:42:29,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:42:29,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:42:29,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:42:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:42:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:42:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:42:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:42:30,413 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:42:30,416 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:42:46,881 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:44:01,398 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:44:01,398 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:44:01,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:44:01 BoogieIcfgContainer [2023-12-03 01:44:01,400 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:44:01,401 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:44:01,402 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:44:01,411 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:44:01,411 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:44:01" (1/1) ... [2023-12-03 01:44:01,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:44:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:44:01,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 01:44:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 01:44:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:44:01,477 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:44:01,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:44:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:44:23,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:44:35,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:44:45,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:44:55,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:45:05,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:45:10,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:45:11,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:45:21,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:45:31,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:45:32,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:45:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 01:45:32,016 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 01:45:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:45:32,017 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:45:32,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:45:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 01:45:46,834 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-03 01:45:46,838 INFO L158 Benchmark]: Toolchain (without parser) took 203970.18ms. Allocated memory was 155.2MB in the beginning and 9.5GB in the end (delta: 9.4GB). Free memory was 113.7MB in the beginning and 7.3GB in the end (delta: -7.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2023-12-03 01:45:46,839 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory was 70.8MB in the beginning and 70.6MB in the end (delta: 174.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:45:46,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1769.55ms. Allocated memory was 155.2MB in the beginning and 211.8MB in the end (delta: 56.6MB). Free memory was 113.7MB in the beginning and 63.6MB in the end (delta: 50.2MB). Peak memory consumption was 178.1MB. Max. memory is 16.1GB. [2023-12-03 01:45:46,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 2388.13ms. Allocated memory was 211.8MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 63.6MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 403.0MB. Max. memory is 16.1GB. [2023-12-03 01:45:46,842 INFO L158 Benchmark]: Boogie Preprocessor took 2190.10ms. Allocated memory is still 1.9GB. Free memory was 1.4GB in the beginning and 1.2GB in the end (delta: 162.8MB). Peak memory consumption was 248.8MB. Max. memory is 16.1GB. [2023-12-03 01:45:46,843 INFO L158 Benchmark]: RCFGBuilder took 92181.79ms. Allocated memory was 1.9GB in the beginning and 9.5GB in the end (delta: 7.7GB). Free memory was 1.2GB in the beginning and 7.8GB in the end (delta: -6.6GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. [2023-12-03 01:45:46,844 INFO L158 Benchmark]: CodeCheck took 105435.51ms. Allocated memory is still 9.5GB. Free memory was 7.8GB in the beginning and 7.3GB in the end (delta: 447.7MB). Peak memory consumption was 448.7MB. Max. memory is 16.1GB. [2023-12-03 01:45:46,848 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory was 70.8MB in the beginning and 70.6MB in the end (delta: 174.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1769.55ms. Allocated memory was 155.2MB in the beginning and 211.8MB in the end (delta: 56.6MB). Free memory was 113.7MB in the beginning and 63.6MB in the end (delta: 50.2MB). Peak memory consumption was 178.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 2388.13ms. Allocated memory was 211.8MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 63.6MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 403.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 2190.10ms. Allocated memory is still 1.9GB. Free memory was 1.4GB in the beginning and 1.2GB in the end (delta: 162.8MB). Peak memory consumption was 248.8MB. Max. memory is 16.1GB. * RCFGBuilder took 92181.79ms. Allocated memory was 1.9GB in the beginning and 9.5GB in the end (delta: 7.7GB). Free memory was 1.2GB in the beginning and 7.8GB in the end (delta: -6.6GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. * CodeCheck took 105435.51ms. Allocated memory is still 9.5GB. Free memory was 7.8GB in the beginning and 7.3GB in the end (delta: 447.7MB). Peak memory consumption was 448.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 01:45:47,063 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 01:45:47,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/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_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 003fec4fbb4e6f7e867001cf119ef358a9e76c4238a42e508f099aaa9fee4e7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:45:49,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:45:49,714 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 01:45:49,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:45:49,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:45:49,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:45:49,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:45:49,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:45:49,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:45:49,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:45:49,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:45:49,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:45:49,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:45:49,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:45:49,755 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:45:49,756 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:45:49,757 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:45:49,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:45:49,758 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:45:49,758 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:45:49,759 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:45:49,760 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:45:49,760 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:45:49,761 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:45:49,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:45:49,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:45:49,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:45:49,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:45:49,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:45:49,764 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:45:49,764 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:45:49,765 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:45:49,765 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:45:49,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:45:49,766 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 003fec4fbb4e6f7e867001cf119ef358a9e76c4238a42e508f099aaa9fee4e7a [2023-12-03 01:45:50,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:45:50,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:45:50,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:45:50,111 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:45:50,111 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:45:50,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c [2023-12-03 01:45:53,035 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:45:53,548 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:45:53,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c [2023-12-03 01:45:53,599 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/data/a6f65e65d/781d42b16a0e405fbd6bc5aab03ba79d/FLAGf7832702c [2023-12-03 01:45:53,616 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/data/a6f65e65d/781d42b16a0e405fbd6bc5aab03ba79d [2023-12-03 01:45:53,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:45:53,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:45:53,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:45:53,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:45:53,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:45:53,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:45:53" (1/1) ... [2023-12-03 01:45:53,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8041144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:53, skipping insertion in model container [2023-12-03 01:45:53,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:45:53" (1/1) ... [2023-12-03 01:45:53,786 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:45:54,029 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c[1175,1188] [2023-12-03 01:45:54,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:45:54,685 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:45:54,699 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.4.prop3-back-serstep.c[1175,1188] [2023-12-03 01:45:55,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:45:55,176 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:45:55,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55 WrapperNode [2023-12-03 01:45:55,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:45:55,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:45:55,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:45:55,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:45:55,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,593 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7526 [2023-12-03 01:45:55,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:45:55,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:45:55,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:45:55,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:45:55,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:45:55,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:45:55,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:45:55,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:45:55,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:55" (1/1) ... [2023-12-03 01:45:55,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:45:55,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:45:55,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:45:55,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:45:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:45:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:45:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:45:56,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:45:57,016 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:45:57,019 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:46:23,401 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:46:23,777 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:46:23,777 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:46:23,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:46:23 BoogieIcfgContainer [2023-12-03 01:46:23,779 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:46:23,780 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:46:23,780 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:46:23,788 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:46:23,789 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:46:23" (1/1) ... [2023-12-03 01:46:23,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:46:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:46:23,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 01:46:23,842 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 01:46:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:46:23,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:46:23,843 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:46:23,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:46:23,845 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:46:23,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:46:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:46:25,701 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:46:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:46:26,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:46:26,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:46:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:46:26,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:46:37,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:46:47,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:46:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:46:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 01:46:48,340 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 01:46:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:46:48,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:46:48,340 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:46:48,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:46:48,342 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:46:48,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 01:46:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:46:56,673 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:46:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:46:59,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 6339 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-03 01:46:59,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:47:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:47:00,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 01:47:12,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:47:20,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.00s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:47:31,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.80s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:47:46,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:47:58,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:48:08,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:48:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 01:48:08,673 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 01:48:08,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:48:08,676 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:48:08,676 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:48:08,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:48:08,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:48:08,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1b0e73-21f7-41c0-b7f5-04ef01f0a54f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 01:48:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:23,284 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:48:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:30,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 11995 conjuncts, 553 conjunts are in the unsatisfiable core [2023-12-03 01:48:30,917 INFO L285 TraceCheckSpWp]: Computing forward predicates...