./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Gothenburg_v2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Gothenburg_v2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c295749df38dacfa531a14c4d744c010a8ad50fab674c3b8e19c2ca945c321a6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:13:22,990 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:13:23,117 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:13:23,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:13:23,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:13:23,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:13:23,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:13:23,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:13:23,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:13:23,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:13:23,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:13:23,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:13:23,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:13:23,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:13:23,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:13:23,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:13:23,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:13:23,184 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:13:23,185 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:13:23,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:13:23,186 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:13:23,187 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:13:23,188 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:13:23,188 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:13:23,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:13:23,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:13:23,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:13:23,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:13:23,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:13:23,192 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:13:23,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:13:23,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:13:23,206 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_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c295749df38dacfa531a14c4d744c010a8ad50fab674c3b8e19c2ca945c321a6 [2023-11-23 20:13:23,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:13:23,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:13:23,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:13:23,672 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:13:23,673 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:13:23,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/termination-crafted/Gothenburg_v2-1.c [2023-11-23 20:13:27,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:13:27,482 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:13:27,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/sv-benchmarks/c/termination-crafted/Gothenburg_v2-1.c [2023-11-23 20:13:27,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/data/1d8ffcc0b/e3717ba9efa649fdbd983dfcdcfef041/FLAG2c1e6be67 [2023-11-23 20:13:27,514 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/data/1d8ffcc0b/e3717ba9efa649fdbd983dfcdcfef041 [2023-11-23 20:13:27,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:13:27,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:13:27,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:13:27,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:13:27,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:13:27,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a63b0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27, skipping insertion in model container [2023-11-23 20:13:27,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,559 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:13:27,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:13:27,785 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:13:27,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:13:27,827 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:13:27,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27 WrapperNode [2023-11-23 20:13:27,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:13:27,829 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:13:27,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:13:27,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:13:27,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,873 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-23 20:13:27,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:13:27,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:13:27,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:13:27,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:13:27,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:13:27,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:13:27,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:13:27,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:13:27,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:27" (1/1) ... [2023-11-23 20:13:27,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:13:27,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:13:27,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:13:27,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f443e2a7-c924-4a6d-8f9d-c9767b21c133/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:13:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:13:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:13:28,114 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:13:28,117 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:13:28,359 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:13:28,389 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:13:28,389 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:13:28,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:28 BoogieIcfgContainer [2023-11-23 20:13:28,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:13:28,393 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:13:28,393 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:13:28,408 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:13:28,408 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:28" (1/1) ... [2023-11-23 20:13:28,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:13:28,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 38 states and 43 transitions. [2023-11-23 20:13:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-23 20:13:28,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:13:28,495 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:28,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:28,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:28,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 37 states and 42 transitions. [2023-11-23 20:13:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-11-23 20:13:28,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:13:28,773 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:28,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:28,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:28,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 36 states and 41 transitions. [2023-11-23 20:13:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-11-23 20:13:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:13:28,924 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:28,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:29,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:29,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 38 states and 45 transitions. [2023-11-23 20:13:29,842 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2023-11-23 20:13:29,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:13:29,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:29,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:30,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 41 states and 50 transitions. [2023-11-23 20:13:30,978 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2023-11-23 20:13:30,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:13:30,979 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:30,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:31,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:31,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 45 states and 58 transitions. [2023-11-23 20:13:31,694 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2023-11-23 20:13:31,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:13:31,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:33,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 50 states and 67 transitions. [2023-11-23 20:13:33,223 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2023-11-23 20:13:33,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:13:33,224 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:33,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:33,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:33,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 52 states and 69 transitions. [2023-11-23 20:13:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2023-11-23 20:13:33,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:13:33,329 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:33,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:34,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:34,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 51 states and 68 transitions. [2023-11-23 20:13:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2023-11-23 20:13:34,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:13:34,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:34,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:34,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:36,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:36,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 59 states and 83 transitions. [2023-11-23 20:13:36,946 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2023-11-23 20:13:36,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:13:36,947 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:36,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:37,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:40,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 68 states and 99 transitions. [2023-11-23 20:13:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2023-11-23 20:13:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 20:13:40,055 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:40,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:40,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 78 states and 119 transitions. [2023-11-23 20:13:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 119 transitions. [2023-11-23 20:13:43,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:13:43,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:43,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:47,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 89 states and 138 transitions. [2023-11-23 20:13:47,853 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 138 transitions. [2023-11-23 20:13:47,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:13:47,855 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:47,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 91 states and 140 transitions. [2023-11-23 20:13:47,959 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 140 transitions. [2023-11-23 20:13:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:13:47,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:47,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 90 states and 139 transitions. [2023-11-23 20:13:48,843 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 139 transitions. [2023-11-23 20:13:48,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 20:13:48,844 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:48,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:13:53,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:53,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 103 states and 161 transitions. [2023-11-23 20:13:53,341 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 161 transitions. [2023-11-23 20:13:53,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:13:53,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:53,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:13:53,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:14:00,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:00,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 116 states and 191 transitions. [2023-11-23 20:14:00,013 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 191 transitions. [2023-11-23 20:14:00,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:14:00,014 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:00,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:00,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:14:07,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 133 states and 222 transitions. [2023-11-23 20:14:07,617 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 222 transitions. [2023-11-23 20:14:07,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 20:14:07,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:07,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:07,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:14:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 146 states and 251 transitions. [2023-11-23 20:14:15,266 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 251 transitions. [2023-11-23 20:14:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:14:15,276 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:15,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:15,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:14:15,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:15,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 148 states and 260 transitions. [2023-11-23 20:14:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 260 transitions. [2023-11-23 20:14:15,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:14:15,460 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:15,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.