./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV --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 a9bfc0bfd402f01a909df8198af653a6c40e8b771ded2d89ed782f9da2aa5bbb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:50:40,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:50:40,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-11 23:50:40,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:50:40,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:50:40,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:50:40,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:50:40,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:50:40,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:50:40,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:50:40,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:50:40,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:50:40,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:50:40,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:50:40,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:50:40,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:50:40,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:50:40,470 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:50:40,470 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:50:40,471 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:50:40,471 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:50:40,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:50:40,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:40,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:50:40,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:50:40,474 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:50:40,474 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:50:40,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:50:40,475 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:50:40,475 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_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9bfc0bfd402f01a909df8198af653a6c40e8b771ded2d89ed782f9da2aa5bbb [2023-11-11 23:50:40,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:50:40,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:50:40,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:50:40,802 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:50:40,803 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:50:40,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2023-11-11 23:50:43,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:50:44,197 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:50:44,198 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2023-11-11 23:50:44,208 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/data/f15c8e0ea/5a2951d66e484a35abe01ba39108c09a/FLAGdb8fc7d71 [2023-11-11 23:50:44,224 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/data/f15c8e0ea/5a2951d66e484a35abe01ba39108c09a [2023-11-11 23:50:44,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:50:44,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:50:44,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:44,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:50:44,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:50:44,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cd9cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44, skipping insertion in model container [2023-11-11 23:50:44,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,274 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:50:44,432 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_347cb1f8-e6c0-41e1-b28c-c64b02a80654/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1439,1452] [2023-11-11 23:50:44,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:44,476 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:50:44,494 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_347cb1f8-e6c0-41e1-b28c-c64b02a80654/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1439,1452] [2023-11-11 23:50:44,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:44,548 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:50:44,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44 WrapperNode [2023-11-11 23:50:44,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:44,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:44,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:50:44,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:50:44,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,626 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 110 [2023-11-11 23:50:44,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:44,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:50:44,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:50:44,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:50:44,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:50:44,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:50:44,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:50:44,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:50:44,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:44" (1/1) ... [2023-11-11 23:50:44,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:44,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:50:44,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:50:44,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:50:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:50:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:50:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:50:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:50:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-11 23:50:44,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-11 23:50:44,866 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:50:44,868 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:50:45,237 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:50:45,464 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:50:45,464 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-11 23:50:45,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:45 BoogieIcfgContainer [2023-11-11 23:50:45,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:50:45,468 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:50:45,468 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:50:45,479 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:50:45,480 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:45" (1/1) ... [2023-11-11 23:50:45,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:50:45,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:45,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-11 23:50:45,570 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-11 23:50:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:50:45,571 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:45,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:46,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:46,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2023-11-11 23:50:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2023-11-11 23:50:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:50:46,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:46,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:47,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions. [2023-11-11 23:50:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2023-11-11 23:50:47,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:50:47,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:47,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:47,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-11 23:50:47,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:50:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-11 23:50:49,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:49,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 47 transitions. [2023-11-11 23:50:49,661 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 47 transitions. [2023-11-11 23:50:49,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-11 23:50:49,662 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:49,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:49,784 WARN L260 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 86 conjunts are in the unsatisfiable core [2023-11-11 23:50:49,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:50:50,788 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:50:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 33 states and 67 transitions. [2023-11-11 23:50:52,889 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 67 transitions. [2023-11-11 23:50:52,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-11 23:50:52,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:52,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:52,999 WARN L260 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 87 conjunts are in the unsatisfiable core [2023-11-11 23:50:53,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:50:53,482 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:50:53,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:53,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 34 states and 68 transitions. [2023-11-11 23:50:53,785 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 68 transitions. [2023-11-11 23:50:53,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-11 23:50:53,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:53,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:53,944 WARN L260 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 110 conjunts are in the unsatisfiable core [2023-11-11 23:50:53,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:50:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-11 23:50:57,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 40 states and 90 transitions. [2023-11-11 23:50:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 90 transitions. [2023-11-11 23:50:57,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-11 23:50:57,202 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:57,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:57,414 WARN L260 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 112 conjunts are in the unsatisfiable core [2023-11-11 23:50:57,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:50:58,611 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-11 23:51:00,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:00,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 44 states and 104 transitions. [2023-11-11 23:51:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 104 transitions. [2023-11-11 23:51:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-11 23:51:00,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:00,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:01,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 98 conjunts are in the unsatisfiable core [2023-11-11 23:51:01,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:51:01,766 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 19 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-11 23:51:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 45 states and 105 transitions. [2023-11-11 23:51:02,112 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 105 transitions. [2023-11-11 23:51:02,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-11 23:51:02,114 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:02,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:02,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 105 conjunts are in the unsatisfiable core [2023-11-11 23:51:02,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:51:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 25 proven. 32 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-11 23:51:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 51 states and 125 transitions. [2023-11-11 23:51:05,875 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 125 transitions. [2023-11-11 23:51:05,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-11 23:51:05,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:05,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:06,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 113 conjunts are in the unsatisfiable core [2023-11-11 23:51:06,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:51:06,842 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-11 23:51:08,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:08,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 54 states and 131 transitions. [2023-11-11 23:51:08,085 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 131 transitions. [2023-11-11 23:51:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-11 23:51:08,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:08,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:51:08,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:51:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:51:08,705 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2023-11-11 23:51:08,765 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-11 23:51:08,766 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-11 23:51:08,766 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-11 23:51:08,766 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-11 23:51:08,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:51:08 ImpRootNode [2023-11-11 23:51:08,784 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:51:08,785 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:51:08,786 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:51:08,787 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:51:08,787 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:45" (3/4) ... [2023-11-11 23:51:08,789 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-11 23:51:08,790 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:51:08,791 INFO L158 Benchmark]: Toolchain (without parser) took 24562.27ms. Allocated memory was 146.8MB in the beginning and 333.4MB in the end (delta: 186.6MB). Free memory was 99.4MB in the beginning and 186.9MB in the end (delta: -87.5MB). Peak memory consumption was 101.2MB. Max. memory is 16.1GB. [2023-11-11 23:51:08,792 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:51:08,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.93ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 87.4MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:51:08,793 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.83ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 84.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:51:08,794 INFO L158 Benchmark]: Boogie Preprocessor took 33.30ms. Allocated memory is still 146.8MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:51:08,795 INFO L158 Benchmark]: RCFGBuilder took 805.53ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 82.7MB in the beginning and 153.5MB in the end (delta: -70.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-11-11 23:51:08,796 INFO L158 Benchmark]: CodeCheck took 23316.99ms. Allocated memory was 190.8MB in the beginning and 333.4MB in the end (delta: 142.6MB). Free memory was 153.5MB in the beginning and 187.9MB in the end (delta: -34.5MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. [2023-11-11 23:51:08,796 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 333.4MB. Free memory was 187.9MB in the beginning and 186.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:51:08,800 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.2s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 403 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 154 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 438 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2056 IncrementalHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 438 mSolverCounterUnsat, 120 mSDtfsCounter, 2056 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2843 GetRequests, 2571 SyntacticMatches, 82 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16728 ImplicationChecksByTransitivity, 13.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 2288 SizeOfPredicates, 324 NumberOfNonLiveVariables, 1549 ConjunctsInSsa, 765 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 275/409 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 29]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L34] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L35] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L37] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 1); [L38] const SORT_12 msb_SORT_12 = (SORT_12)1 << (1 - 1); [L40] const SORT_1 var_2 = 1; [L41] const SORT_1 var_11 = mask_SORT_1; [L42] const SORT_1 var_16 = 3; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L45] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L46] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_1 init_5_arg_1 = var_2; [L49] state_3 = init_5_arg_1 [L50] SORT_1 init_6_arg_1 = var_2; [L51] state_4 = init_6_arg_1 VAL [init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] EXPR var_18_arg_0 & var_18_arg_1 [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] EXPR var_18 & mask_SORT_12 [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] EXPR var_7 & mask_SORT_1 [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] EXPR var_18_arg_0 & var_18_arg_1 [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] EXPR var_18 & mask_SORT_12 [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] EXPR var_7 & mask_SORT_1 [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] EXPR var_18_arg_0 & var_18_arg_1 [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] EXPR var_18 & mask_SORT_12 [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] EXPR var_7 & mask_SORT_1 [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=6, next_9_arg_1=4, state_3=6, state_4=4, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=4, var_7_arg_0=3, var_7_arg_1=1, var_8=6, var_8_arg_0=2, var_8_arg_1=3] [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=6, next_9_arg_1=4, state_3=6, state_4=4, var_11=15, var_13=0, var_13_arg_0=4, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=4, var_7_arg_0=3, var_7_arg_1=1, var_8=6, var_8_arg_0=2, var_8_arg_1=3] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=6, next_9_arg_1=4, state_3=6, state_4=4, var_11=15, var_13=0, var_13_arg_0=4, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=4, var_7_arg_0=3, var_7_arg_1=1, var_8=6, var_8_arg_0=2, var_8_arg_1=3] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] EXPR var_18_arg_0 & var_18_arg_1 [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] EXPR var_18 & mask_SORT_12 [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=1, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_12=1, mask_SORT_1=15, msb_SORT_12=1, msb_SORT_1=8, next_10_arg_1=6, next_9_arg_1=4, state_3=6, state_4=4, var_11=15, var_13=0, var_13_arg_0=4, var_13_arg_1=15, var_15=6, var_15_arg_0=6, var_16=3, var_17=1, var_17_arg_0=4, var_17_arg_1=3, var_18=1, var_18_arg_0=1, var_18_arg_1=6, var_2=1, var_7=4, var_7_arg_0=3, var_7_arg_1=1, var_8=6, var_8_arg_0=2, var_8_arg_1=3] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=0] [L29] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L29] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.93ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 87.4MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.83ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 84.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.30ms. Allocated memory is still 146.8MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 805.53ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 82.7MB in the beginning and 153.5MB in the end (delta: -70.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * CodeCheck took 23316.99ms. Allocated memory was 190.8MB in the beginning and 333.4MB in the end (delta: 142.6MB). Free memory was 153.5MB in the beginning and 187.9MB in the end (delta: -34.5MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 333.4MB. Free memory was 187.9MB in the beginning and 186.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-11 23:51:08,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV --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 a9bfc0bfd402f01a909df8198af653a6c40e8b771ded2d89ed782f9da2aa5bbb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:51:11,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:51:11,580 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-11-11 23:51:11,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:51:11,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:51:11,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:51:11,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:51:11,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:51:11,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:51:11,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:51:11,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:51:11,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:51:11,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:51:11,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:51:11,619 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-11 23:51:11,619 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-11 23:51:11,620 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-11 23:51:11,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:51:11,621 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:51:11,622 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:51:11,622 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:51:11,623 INFO L153 SettingsManager]: * Theory for external solver=AUFBV [2023-11-11 23:51:11,623 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-11 23:51:11,624 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-11 23:51:11,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:51:11,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:51:11,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:51:11,626 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:51:11,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:51:11,627 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-11 23:51:11,627 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-11 23:51:11,628 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:51:11,628 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-11 23:51:11,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-11 23:51:11,629 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_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9bfc0bfd402f01a909df8198af653a6c40e8b771ded2d89ed782f9da2aa5bbb [2023-11-11 23:51:12,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:51:12,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:51:12,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:51:12,033 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:51:12,033 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:51:12,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2023-11-11 23:51:15,147 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:51:15,463 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:51:15,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2023-11-11 23:51:15,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/data/6f77aa332/aafac728f46a460d983431f25c049fe8/FLAGa21b88845 [2023-11-11 23:51:15,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/data/6f77aa332/aafac728f46a460d983431f25c049fe8 [2023-11-11 23:51:15,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:51:15,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:51:15,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:51:15,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:51:15,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:51:15,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1975fbe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15, skipping insertion in model container [2023-11-11 23:51:15,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,528 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:51:15,709 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_347cb1f8-e6c0-41e1-b28c-c64b02a80654/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1439,1452] [2023-11-11 23:51:15,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:51:15,775 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:51:15,795 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_347cb1f8-e6c0-41e1-b28c-c64b02a80654/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1439,1452] [2023-11-11 23:51:15,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:51:15,853 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:51:15,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15 WrapperNode [2023-11-11 23:51:15,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:51:15,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:51:15,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:51:15,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:51:15,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,907 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2023-11-11 23:51:15,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:51:15,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:51:15,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:51:15,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:51:15,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:51:15,965 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:51:15,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:51:15,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:51:15,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:15" (1/1) ... [2023-11-11 23:51:15,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:51:15,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:51:16,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:51:16,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:51:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:51:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-11 23:51:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:51:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:51:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-11 23:51:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-11 23:51:16,197 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:51:16,199 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:51:16,410 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:51:16,443 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:51:16,443 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-11 23:51:16,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:16 BoogieIcfgContainer [2023-11-11 23:51:16,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:51:16,447 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:51:16,447 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:51:16,458 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:51:16,458 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:16" (1/1) ... [2023-11-11 23:51:16,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:51:16,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-11 23:51:16,521 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-11 23:51:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:51:16,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:16,524 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-11 23:51:16,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 [2023-11-11 23:51:16,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-11 23:51:16,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-11 23:51:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:16,667 ERROR L594 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-11 23:51:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:16,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-11 23:51:16,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:51:16,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:16,855 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-11 23:51:16,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-11 23:51:17,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:17,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2023-11-11 23:51:17,046 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2023-11-11 23:51:17,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:51:17,050 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:17,051 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-11 23:51:17,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 [2023-11-11 23:51:17,061 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-11 23:51:17,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-11 23:51:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:17,168 ERROR L594 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-11 23:51:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:17,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-11 23:51:17,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:51:17,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:17,525 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-11 23:51:17,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-11 23:51:18,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:18,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-11 23:51:18,249 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-11 23:51:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:51:18,250 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:18,250 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-11 23:51:18,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 [2023-11-11 23:51:18,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-11 23:51:18,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-11 23:51:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:18,357 ERROR L594 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-11 23:51:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:18,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-11 23:51:18,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:51:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-11 23:51:18,695 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-11 23:51:18,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-11 23:51:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 28 states and 45 transitions. [2023-11-11 23:51:19,726 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 45 transitions. [2023-11-11 23:51:19,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-11 23:51:19,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:19,728 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-11 23:51:19,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 [2023-11-11 23:51:19,738 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-11 23:51:19,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-11 23:51:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:19,835 ERROR L594 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-11 23:51:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:19,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-11 23:51:19,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:51:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:51:20,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-11 23:51:21,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:21,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 56 transitions. [2023-11-11 23:51:21,358 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2023-11-11 23:51:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-11 23:51:21,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:21,361 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-11 23:51:21,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 [2023-11-11 23:51:21,363 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-11 23:51:21,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-11 23:51:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:21,474 ERROR L594 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-11 23:51:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:21,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-11 23:51:21,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:51:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-11 23:51:21,838 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-11-11 23:51:21,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-11 23:51:23,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:23,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 39 states and 69 transitions. [2023-11-11 23:51:23,397 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 69 transitions. [2023-11-11 23:51:23,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-11 23:51:23,398 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:23,399 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-11 23:51:23,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 [2023-11-11 23:51:23,401 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-11 23:51:23,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-11 23:51:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:23,522 ERROR L594 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-11 23:51:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:23,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-11 23:51:23,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:51:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-11 23:51:24,196 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2023-11-11 23:51:24,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_347cb1f8-e6c0-41e1-b28c-c64b02a80654/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0