./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Fibonacci02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Fibonacci02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi --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 b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:58:01,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:58:01,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:58:01,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:58:01,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:58:01,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:58:01,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:58:01,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:58:01,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:58:01,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:58:01,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:58:01,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:58:01,905 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:58:01,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:58:01,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:58:01,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:58:01,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:58:01,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:58:01,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:58:01,910 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:58:01,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:58:01,911 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:58:01,912 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:58:01,913 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:58:01,913 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:58:01,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:58:01,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:01,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:58:01,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:58:01,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:58:01,916 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:58:01,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:58:01,917 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:58:01,918 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_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 [2023-11-24 22:58:02,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:58:02,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:58:02,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:58:02,224 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:58:02,225 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:58:02,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursive/Fibonacci02.c [2023-11-24 22:58:05,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:58:05,645 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:58:05,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/sv-benchmarks/c/recursive/Fibonacci02.c [2023-11-24 22:58:05,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/data/ef77bc12e/233ca976f89040c38333717e4d4a4e06/FLAGb3ed24c37 [2023-11-24 22:58:06,013 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/data/ef77bc12e/233ca976f89040c38333717e4d4a4e06 [2023-11-24 22:58:06,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:58:06,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:58:06,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:06,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:58:06,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:58:06,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b11dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06, skipping insertion in model container [2023-11-24 22:58:06,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:58:06,216 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_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2023-11-24 22:58:06,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:06,233 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:58:06,247 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_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2023-11-24 22:58:06,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:06,263 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:58:06,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06 WrapperNode [2023-11-24 22:58:06,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:06,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:06,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:58:06,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:58:06,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,293 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-11-24 22:58:06,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:06,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:58:06,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:58:06,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:58:06,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,310 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:58:06,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:58:06,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:58:06,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:58:06,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:06,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:58:06,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:58:06,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a3c5434-599a-4cd7-9aeb-a9d550e3663c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:58:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2023-11-24 22:58:06,393 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2023-11-24 22:58:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:58:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:58:06,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:58:06,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:58:06,459 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:58:06,461 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:58:06,555 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:58:06,575 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:58:06,575 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:58:06,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:06 BoogieIcfgContainer [2023-11-24 22:58:06,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:58:06,578 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:58:06,578 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:58:06,589 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:58:06,589 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:06" (1/1) ... [2023-11-24 22:58:06,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:58:06,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:06,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-24 22:58:06,654 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-24 22:58:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:58:06,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:06,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:58:07,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 25 transitions. [2023-11-24 22:58:07,134 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2023-11-24 22:58:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:58:07,135 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:07,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:58:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:07,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 29 transitions. [2023-11-24 22:58:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2023-11-24 22:58:07,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:58:07,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:07,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:07,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 22:58:07,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:07,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 28 transitions. [2023-11-24 22:58:07,788 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-11-24 22:58:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:58:07,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:07,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 22:58:08,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:08,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 26 states and 40 transitions. [2023-11-24 22:58:08,223 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2023-11-24 22:58:08,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-24 22:58:08,230 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:08,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-24 22:58:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:09,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 29 states and 47 transitions. [2023-11-24 22:58:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2023-11-24 22:58:09,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-24 22:58:09,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:09,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:09,560 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 22:58:09,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:09,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 34 states and 62 transitions. [2023-11-24 22:58:09,975 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 62 transitions. [2023-11-24 22:58:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-24 22:58:09,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:09,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:10,334 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 47 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-24 22:58:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:10,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 34 states and 61 transitions. [2023-11-24 22:58:10,806 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2023-11-24 22:58:10,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 22:58:10,819 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:10,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 22 proven. 127 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-24 22:58:11,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 39 states and 78 transitions. [2023-11-24 22:58:11,572 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 78 transitions. [2023-11-24 22:58:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-24 22:58:11,579 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:11,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 131 proven. 122 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-24 22:58:12,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:12,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 39 states and 77 transitions. [2023-11-24 22:58:12,308 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 77 transitions. [2023-11-24 22:58:12,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-24 22:58:12,315 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:12,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:12,698 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 52 proven. 326 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:58:13,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:13,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 44 states and 96 transitions. [2023-11-24 22:58:13,180 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 96 transitions. [2023-11-24 22:58:13,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-24 22:58:13,184 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:13,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:13,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 117 proven. 639 refuted. 0 times theorem prover too weak. 1485 trivial. 0 not checked. [2023-11-24 22:58:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:14,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 49 states and 118 transitions. [2023-11-24 22:58:14,279 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 118 transitions. [2023-11-24 22:58:14,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-24 22:58:14,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:14,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:14,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 225 proven. 1327 refuted. 0 times theorem prover too weak. 4487 trivial. 0 not checked. [2023-11-24 22:58:15,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 54 states and 143 transitions. [2023-11-24 22:58:15,543 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 143 transitions. [2023-11-24 22:58:15,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2023-11-24 22:58:15,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:15,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:16,394 INFO L134 CoverageAnalysis]: Checked inductivity of 11682 backedges. 574 proven. 1370 refuted. 0 times theorem prover too weak. 9738 trivial. 0 not checked. [2023-11-24 22:58:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:16,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 54 states and 142 transitions. [2023-11-24 22:58:16,780 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 142 transitions. [2023-11-24 22:58:16,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-11-24 22:58:16,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:16,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:17,778 INFO L134 CoverageAnalysis]: Checked inductivity of 6549 backedges. 1052 proven. 747 refuted. 0 times theorem prover too weak. 4750 trivial. 0 not checked. [2023-11-24 22:58:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 56 states and 142 transitions. [2023-11-24 22:58:18,738 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 142 transitions. [2023-11-24 22:58:18,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2023-11-24 22:58:18,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:18,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 15594 backedges. 829 proven. 1548 refuted. 0 times theorem prover too weak. 13217 trivial. 0 not checked. [2023-11-24 22:58:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:20,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 56 states and 141 transitions. [2023-11-24 22:58:20,572 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 141 transitions. [2023-11-24 22:58:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2023-11-24 22:58:20,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:20,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:22,876 INFO L134 CoverageAnalysis]: Checked inductivity of 39779 backedges. 582 proven. 4385 refuted. 0 times theorem prover too weak. 34812 trivial. 0 not checked. [2023-11-24 22:58:23,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:23,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 61 states and 167 transitions. [2023-11-24 22:58:23,628 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 167 transitions. [2023-11-24 22:58:23,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 981 [2023-11-24 22:58:23,642 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:23,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:26,867 INFO L134 CoverageAnalysis]: Checked inductivity of 57573 backedges. 1235 proven. 5070 refuted. 0 times theorem prover too weak. 51268 trivial. 0 not checked. [2023-11-24 22:58:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:29,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 61 states and 107 transitions. [2023-11-24 22:58:29,127 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 107 transitions. [2023-11-24 22:58:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2023-11-24 22:58:29,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:29,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 20991 backedges. 1046 proven. 2050 refuted. 0 times theorem prover too weak. 17895 trivial. 0 not checked. [2023-11-24 22:58:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 61 states and 106 transitions. [2023-11-24 22:58:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 106 transitions. [2023-11-24 22:58:30,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1141 [2023-11-24 22:58:30,894 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:30,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 2204 proven. 4301 refuted. 0 times theorem prover too weak. 71596 trivial. 0 not checked. [2023-11-24 22:58:34,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:34,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 61 states and 102 transitions. [2023-11-24 22:58:34,314 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 102 transitions. [2023-11-24 22:58:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2023-11-24 22:58:34,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:34,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 29515 backedges. 1448 proven. 2453 refuted. 0 times theorem prover too weak. 25614 trivial. 0 not checked. [2023-11-24 22:58:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 61 states and 97 transitions. [2023-11-24 22:58:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 97 transitions. [2023-11-24 22:58:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2023-11-24 22:58:36,618 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:36,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:37,707 INFO L134 CoverageAnalysis]: Checked inductivity of 27268 backedges. 1376 proven. 1680 refuted. 0 times theorem prover too weak. 24212 trivial. 0 not checked. [2023-11-24 22:58:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 61 states and 96 transitions. [2023-11-24 22:58:38,109 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 96 transitions. [2023-11-24 22:58:38,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2023-11-24 22:58:38,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:38,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 3212 proven. 1991 refuted. 0 times theorem prover too weak. 45707 trivial. 0 not checked. [2023-11-24 22:58:40,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:40,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 61 states and 93 transitions. [2023-11-24 22:58:40,493 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 93 transitions. [2023-11-24 22:58:40,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2023-11-24 22:58:40,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:40,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat