./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label39.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label39.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c9e5fbdda66ebb475fc0f8bb519ddbac927ae9c052949a5df5d6f2e890e35299 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:50:43,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:50:44,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 03:50:44,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:50:44,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:50:44,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:50:44,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:50:44,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:50:44,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:50:44,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:50:44,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:50:44,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:50:44,083 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:50:44,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:50:44,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:50:44,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:50:44,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:50:44,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:50:44,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:50:44,086 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:50:44,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:50:44,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:50:44,090 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:50:44,090 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:50:44,090 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:50:44,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:50:44,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:50:44,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:50:44,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:50:44,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:50:44,093 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:50:44,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:50:44,094 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:50:44,094 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_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9e5fbdda66ebb475fc0f8bb519ddbac927ae9c052949a5df5d6f2e890e35299 [2023-12-03 03:50:44,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:50:44,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:50:44,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:50:44,347 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:50:44,347 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:50:44,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/eca-rers2012/Problem16_label39.c [2023-12-03 03:50:47,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:50:47,446 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:50:47,446 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/sv-benchmarks/c/eca-rers2012/Problem16_label39.c [2023-12-03 03:50:47,466 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/data/317e3135a/21dd522cada74700b0f4f0bd4cb64b70/FLAGc0e98ef1e [2023-12-03 03:50:47,481 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/data/317e3135a/21dd522cada74700b0f4f0bd4cb64b70 [2023-12-03 03:50:47,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:50:47,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:50:47,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:50:47,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:50:47,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:50:47,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:50:47" (1/1) ... [2023-12-03 03:50:47,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a11fe70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:47, skipping insertion in model container [2023-12-03 03:50:47,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:50:47" (1/1) ... [2023-12-03 03:50:47,581 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:50:47,832 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_c7f39949-64cc-4a15-9ab6-b92d09d883cd/sv-benchmarks/c/eca-rers2012/Problem16_label39.c[5211,5224] [2023-12-03 03:50:48,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:50:48,178 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:50:48,199 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_c7f39949-64cc-4a15-9ab6-b92d09d883cd/sv-benchmarks/c/eca-rers2012/Problem16_label39.c[5211,5224] [2023-12-03 03:50:48,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:50:48,364 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:50:48,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48 WrapperNode [2023-12-03 03:50:48,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:50:48,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:50:48,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:50:48,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:50:48,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,528 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2023-12-03 03:50:48,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:50:48,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:50:48,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:50:48,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:50:48,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:50:48,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:50:48,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:50:48,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:50:48,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:48" (1/1) ... [2023-12-03 03:50:48,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:50:48,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:50:48,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:50:48,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f39949-64cc-4a15-9ab6-b92d09d883cd/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:50:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:50:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:50:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:50:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:50:48,795 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:50:48,797 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:50:50,966 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:51:05,853 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:51:05,853 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:51:05,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:51:05 BoogieIcfgContainer [2023-12-03 03:51:05,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:51:05,856 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:51:05,857 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:51:05,866 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:51:05,866 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:51:05" (1/1) ... [2023-12-03 03:51:05,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:51:05,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:51:05,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-12-03 03:51:05,919 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-12-03 03:51:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 03:51:05,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:51:05,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:51:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:51:06,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:51:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:51:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-03 03:51:06,430 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-03 03:51:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 03:51:06,431 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:51:06,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:51:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:53:31,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:53:32,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:53:32,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2023-12-03 03:53:32,141 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2023-12-03 03:53:32,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 03:53:32,144 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:53:32,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:53:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:58:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:58:56,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:58:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:58:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 30 states and 51 transitions. [2023-12-03 03:58:56,534 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 51 transitions. [2023-12-03 03:58:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 03:58:56,535 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:58:56,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:58:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:04:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:04:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:04:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 36 states and 67 transitions. [2023-12-03 04:04:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 67 transitions. [2023-12-03 04:04:26,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 04:04:26,805 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:04:26,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:04:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat