./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm --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 981a51627ea9f2dda80967e2363c16ccda8c518fc3bfd1d085c2a875cd2f0ae9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:38:50,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:38:50,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-13 16:38:50,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:38:50,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:38:50,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:38:50,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:38:50,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:38:50,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:38:50,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:38:50,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:38:50,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:38:50,201 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:38:50,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:38:50,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:38:50,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:38:50,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:38:50,202 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:38:50,202 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:38:50,202 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:38:50,203 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:38:50,203 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:38:50,203 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:38:50,203 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:38:50,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:38:50,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:38:50,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:38:50,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:38:50,204 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:38:50,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:38:50,204 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm 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 -> 981a51627ea9f2dda80967e2363c16ccda8c518fc3bfd1d085c2a875cd2f0ae9 [2024-11-13 16:38:50,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:38:50,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:38:50,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:38:50,589 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:38:50,590 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:38:50,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-back-serstep.c Unable to find full path for "g++" [2024-11-13 16:38:52,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:38:53,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:38:53,262 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-back-serstep.c [2024-11-13 16:38:53,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/data/923a8ab92/01f2eaae3e1243f79aeabeb07f7b60c3/FLAG524b641ce [2024-11-13 16:38:53,332 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/data/923a8ab92/01f2eaae3e1243f79aeabeb07f7b60c3 [2024-11-13 16:38:53,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:38:53,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:38:53,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:38:53,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:38:53,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:38:53,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:38:53" (1/1) ... [2024-11-13 16:38:53,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672ed04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:53, skipping insertion in model container [2024-11-13 16:38:53,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:38:53" (1/1) ... [2024-11-13 16:38:53,462 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:38:53,710 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-back-serstep.c[1173,1186] [2024-11-13 16:38:54,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:38:54,380 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:38:54,393 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-back-serstep.c[1173,1186] [2024-11-13 16:38:54,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:38:54,751 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:38:54,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54 WrapperNode [2024-11-13 16:38:54,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:38:54,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:38:54,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:38:54,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:38:54,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:54,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:55,724 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7136 [2024-11-13 16:38:55,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:38:55,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:38:55,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:38:55,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:38:55,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:55,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:55,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:55,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:56,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:56,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:56,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:56,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:56,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:38:56,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:38:56,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:38:56,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:38:56,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:38:54" (1/1) ... [2024-11-13 16:38:56,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:38:56,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:38:56,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:38:56,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2342efd4-bf0a-4c54-b101-f03b4ba6308e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:38:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:38:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:38:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:38:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:38:57,550 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:38:57,553 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:39:08,074 INFO L? ?]: Removed 4260 outVars from TransFormulas that were not future-live. [2024-11-13 16:39:08,074 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:39:19,333 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:39:19,334 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:39:19,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:39:19 BoogieIcfgContainer [2024-11-13 16:39:19,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:39:19,335 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:39:19,336 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:39:19,347 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:39:19,348 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:39:19" (1/1) ... [2024-11-13 16:39:19,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:39:19,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:39:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-11-13 16:39:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-11-13 16:39:19,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 16:39:19,437 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:39:19,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:39:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:39:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:39:36,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:39:46,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:39:48,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:39:59,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:39:59,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:39:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-11-13 16:39:59,595 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-11-13 16:39:59,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:39:59,595 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:39:59,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:40:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:49:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:50:04,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:50:15,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:50:18,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:50:28,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:50:39,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:50:49,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:50:59,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:51:09,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:51:19,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:51:30,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:51:40,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:51:50,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:52:00,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:52:10,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:52:20,809 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 [] [2024-11-13 16:52:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:21,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2024-11-13 16:52:21,240 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2024-11-13 16:52:21,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:52:21,241 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:21,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:53:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat