./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label48.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label48.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk --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 8261a53c19f43c038d6c9bf7efdae8a565c27af3d0b11334f16494326c28bf76 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:05:29,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:05:29,803 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:05:29,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:05:29,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:05:29,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:05:29,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:05:29,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:05:29,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:05:29,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:05:29,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:05:29,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:05:29,849 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:05:29,849 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:05:29,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:05:29,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:05:29,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:05:29,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:05:29,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:05:29,855 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:05:29,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:05:29,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:05:29,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:05:29,857 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:05:29,857 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:05:29,857 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:05:29,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:05:29,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:29,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:05:29,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:05:29,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:05:29,859 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:05:29,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:05:29,860 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_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8261a53c19f43c038d6c9bf7efdae8a565c27af3d0b11334f16494326c28bf76 [2024-11-08 22:05:30,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:05:30,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:05:30,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:05:30,180 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:05:30,182 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:05:30,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/eca-rers2012/Problem14_label48.c Unable to find full path for "g++" [2024-11-08 22:05:32,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:05:32,670 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:05:32,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/sv-benchmarks/c/eca-rers2012/Problem14_label48.c [2024-11-08 22:05:32,689 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/data/3ae2ea977/b87e6221adae45f5bf325c8435c717f6/FLAGf866dfd21 [2024-11-08 22:05:32,710 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/data/3ae2ea977/b87e6221adae45f5bf325c8435c717f6 [2024-11-08 22:05:32,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:05:32,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:05:32,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:32,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:05:32,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:05:32,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:32" (1/1) ... [2024-11-08 22:05:32,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5752337e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:32, skipping insertion in model container [2024-11-08 22:05:32,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:32" (1/1) ... [2024-11-08 22:05:32,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:05:33,123 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_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/sv-benchmarks/c/eca-rers2012/Problem14_label48.c[4040,4053] [2024-11-08 22:05:33,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:33,419 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:05:33,440 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_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/sv-benchmarks/c/eca-rers2012/Problem14_label48.c[4040,4053] [2024-11-08 22:05:33,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:33,590 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:05:33,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33 WrapperNode [2024-11-08 22:05:33,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:33,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:33,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:05:33,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:05:33,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,725 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2024-11-08 22:05:33,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:33,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:05:33,749 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:05:33,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:05:33,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:05:33,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:05:33,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:05:33,900 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:05:33,901 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:33" (1/1) ... [2024-11-08 22:05:33,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:33,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:05:33,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:05:33,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f21621e-abb4-4f3a-b77a-cc2dd45a3647/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:05:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:05:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:05:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:05:33,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:05:34,057 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:05:34,060 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:05:35,470 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-08 22:05:35,471 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:05:40,727 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:05:40,727 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:05:40,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:40 BoogieIcfgContainer [2024-11-08 22:05:40,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:05:40,729 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:05:40,730 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:05:40,746 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:05:40,746 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:40,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:05:40,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:05:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-11-08 22:05:40,827 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-11-08 22:05:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 22:05:40,832 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:05:40,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:05:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:05:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:05:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:05:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2024-11-08 22:05:41,356 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2024-11-08 22:05:41,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:05:41,357 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:05:41,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:05:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:06:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:06:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:07,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2024-11-08 22:06:07,777 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2024-11-08 22:06:07,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 22:06:07,779 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:07,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:06:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:06:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:06:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 45 transitions. [2024-11-08 22:06:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2024-11-08 22:06:42,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 22:06:42,567 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:42,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:06:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:07:51,048 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:07:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:07:52,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 38 states and 69 transitions. [2024-11-08 22:07:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 69 transitions. [2024-11-08 22:07:52,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 22:07:52,458 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:07:52,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:07:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:10:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:10:32,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 46 states and 87 transitions. [2024-11-08 22:10:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 87 transitions. [2024-11-08 22:10:32,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 22:10:32,837 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:10:32,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:10:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:15:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:15:32,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:15:32,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 56 states and 118 transitions. [2024-11-08 22:15:32,731 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 118 transitions. [2024-11-08 22:15:32,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 22:15:32,733 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:15:32,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:15:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:20:20,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:20:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 51 states and 112 transitions. [2024-11-08 22:20:20,389 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 112 transitions. [2024-11-08 22:20:20,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 22:20:20,390 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2024-11-08 22:20:20,401 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold