./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9 --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 32bit --witnessprinter.graph.data.programhash d87fab1dc6e9b3b1ef38291e10411689fc961abba4e105f2586cc8da9615d8a6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:45:53,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:45:53,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-03 02:45:53,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:45:53,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:45:53,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:45:53,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:45:53,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:45:53,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:45:53,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:45:53,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:45:53,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:45:53,906 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:45:53,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:45:53,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:45:53,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:45:53,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:45:53,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:45:53,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:45:53,909 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 02:45:53,910 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:45:53,912 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:45:53,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:45:53,913 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:45:53,914 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:45:53,914 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:45:53,915 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:45:53,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:45:53,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:45:53,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:45:53,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:45:53,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:45:53,917 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:45:53,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:45:53,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:45:53,918 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_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d87fab1dc6e9b3b1ef38291e10411689fc961abba4e105f2586cc8da9615d8a6 [2023-12-03 02:45:54,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:45:54,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:45:54,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:45:54,163 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:45:54,164 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:45:54,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound100.c [2023-12-03 02:45:56,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:45:57,108 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:45:57,109 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound100.c [2023-12-03 02:45:57,115 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/data/5309703dd/7abeee5b4ab34119a0b2a5c2feb3375b/FLAGfb803747c [2023-12-03 02:45:57,127 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/data/5309703dd/7abeee5b4ab34119a0b2a5c2feb3375b [2023-12-03 02:45:57,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:45:57,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:45:57,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:45:57,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:45:57,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:45:57,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b18f009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57, skipping insertion in model container [2023-12-03 02:45:57,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,156 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:45:57,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:45:57,317 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:45:57,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:45:57,343 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:45:57,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57 WrapperNode [2023-12-03 02:45:57,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:45:57,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:45:57,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:45:57,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:45:57,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,375 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-12-03 02:45:57,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:45:57,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:45:57,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:45:57,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:45:57,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,388 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:45:57,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:45:57,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:45:57,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:45:57,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:45:57,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:45:57,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:45:57,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9840a086-98c8-4bfb-87d9-c17aa811b34c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:45:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:45:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:45:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:45:57,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:45:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 02:45:57,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 02:45:57,515 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:45:57,516 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:45:57,707 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:45:57,752 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:45:57,752 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:45:57,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:45:57 BoogieIcfgContainer [2023-12-03 02:45:57,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:45:57,755 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:45:57,755 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:45:57,766 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:45:57,766 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:45:57" (1/1) ... [2023-12-03 02:45:57,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:45:57,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:45:57,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 47 states and 51 transitions. [2023-12-03 02:45:57,846 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2023-12-03 02:45:57,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 02:45:57,847 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:45:57,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:45:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:45:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:45:57,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:45:57,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:45:57,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:45:57,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:45:57,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 47 states and 50 transitions. [2023-12-03 02:45:57,993 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2023-12-03 02:45:57,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 02:45:57,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:45:57,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:45:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:45:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:45:58,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:45:58,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 49 states and 53 transitions. [2023-12-03 02:45:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2023-12-03 02:45:58,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 02:45:58,099 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:45:58,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:45:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:45:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:45:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:45:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 52 states and 57 transitions. [2023-12-03 02:45:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2023-12-03 02:45:58,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 02:45:58,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:45:58,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:45:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:45:58,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:45:58,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:45:58,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:45:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:45:58,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 53 states and 58 transitions. [2023-12-03 02:45:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2023-12-03 02:45:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 02:45:58,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:45:58,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:45:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:45:58,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 02:45:58,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:45:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:45:58,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:45:58,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 58 states and 66 transitions. [2023-12-03 02:45:58,775 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2023-12-03 02:45:58,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:45:58,775 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:45:58,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:45:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:45:58,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 02:45:58,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:45:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:45:59,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:45:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 64 states and 76 transitions. [2023-12-03 02:45:59,415 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2023-12-03 02:45:59,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 02:45:59,415 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:45:59,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:45:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:45:59,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:45:59,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:45:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:00,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:00,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 71 states and 88 transitions. [2023-12-03 02:46:00,280 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2023-12-03 02:46:00,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 02:46:00,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:00,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:00,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:46:00,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 79 states and 102 transitions. [2023-12-03 02:46:01,534 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2023-12-03 02:46:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:46:01,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:01,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:01,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 02:46:01,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:03,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:03,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 88 states and 118 transitions. [2023-12-03 02:46:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions. [2023-12-03 02:46:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 02:46:03,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:03,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:03,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 02:46:03,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:03,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 98 states and 136 transitions. [2023-12-03 02:46:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 136 transitions. [2023-12-03 02:46:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 02:46:05,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:05,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:05,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 02:46:05,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:05,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:06,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:06,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 101 states and 142 transitions. [2023-12-03 02:46:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 142 transitions. [2023-12-03 02:46:06,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 02:46:06,643 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:06,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:06,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 02:46:06,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:07,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 103 states and 144 transitions. [2023-12-03 02:46:07,621 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2023-12-03 02:46:07,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 02:46:07,622 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:07,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:07,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:46:07,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:10,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:10,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 112 states and 163 transitions. [2023-12-03 02:46:10,168 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 163 transitions. [2023-12-03 02:46:10,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 02:46:10,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:10,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:10,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 02:46:10,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 119 states and 177 transitions. [2023-12-03 02:46:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 177 transitions. [2023-12-03 02:46:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 02:46:12,901 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:12,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:12,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:46:12,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:17,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:17,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 128 states and 196 transitions. [2023-12-03 02:46:17,136 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 196 transitions. [2023-12-03 02:46:17,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 02:46:17,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:17,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:17,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 02:46:17,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:20,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 135 states and 210 transitions. [2023-12-03 02:46:20,487 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 210 transitions. [2023-12-03 02:46:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 02:46:20,488 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:20,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:46:20,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:25,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:25,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 145 states and 230 transitions. [2023-12-03 02:46:25,186 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 230 transitions. [2023-12-03 02:46:25,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 02:46:25,187 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:25,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:25,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 02:46:25,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:26,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:26,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 147 states and 234 transitions. [2023-12-03 02:46:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 234 transitions. [2023-12-03 02:46:26,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 02:46:26,593 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:26,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:26,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:46:26,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:26,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:30,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 158 states and 263 transitions. [2023-12-03 02:46:30,130 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 263 transitions. [2023-12-03 02:46:30,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 02:46:30,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:30,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:30,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:46:30,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:30,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:31,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:31,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 162 states and 272 transitions. [2023-12-03 02:46:31,961 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 272 transitions. [2023-12-03 02:46:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 02:46:31,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:31,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:31,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:46:31,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:32,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:32,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 165 states and 277 transitions. [2023-12-03 02:46:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 277 transitions. [2023-12-03 02:46:32,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 02:46:32,721 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:32,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:32,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:46:32,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:35,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:35,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 182 states and 320 transitions. [2023-12-03 02:46:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 320 transitions. [2023-12-03 02:46:35,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 02:46:35,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:35,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:35,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:46:35,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:35,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 184 states and 323 transitions. [2023-12-03 02:46:36,513 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 323 transitions. [2023-12-03 02:46:36,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 02:46:36,513 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:36,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:36,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:46:36,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:40,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:40,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 202 states and 369 transitions. [2023-12-03 02:46:40,161 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 369 transitions. [2023-12-03 02:46:40,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 02:46:40,162 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:40,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:40,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 02:46:40,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:40,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:41,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:41,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 206 states and 379 transitions. [2023-12-03 02:46:41,103 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 379 transitions. [2023-12-03 02:46:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 02:46:41,104 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:41,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:41,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 02:46:41,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:41,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:41,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 207 states and 383 transitions. [2023-12-03 02:46:41,599 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 383 transitions. [2023-12-03 02:46:41,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 02:46:41,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:41,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:41,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 02:46:41,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:41,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:47,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:46:47,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 216 states and 406 transitions. [2023-12-03 02:46:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 406 transitions. [2023-12-03 02:46:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 02:46:47,357 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:46:47,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:46:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:46:47,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 02:46:47,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:46:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:46:59,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:47:40,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:47:40,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 225 states and 438 transitions. [2023-12-03 02:47:40,493 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 438 transitions. [2023-12-03 02:47:40,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:47:40,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:47:40,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:47:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:47:40,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 02:47:40,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:47:40,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:48:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:48:15,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 233 states and 459 transitions. [2023-12-03 02:48:15,433 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 459 transitions. [2023-12-03 02:48:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:48:15,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:48:15,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:48:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:48:15,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 02:48:15,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:48:20,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:51:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:51:27,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 241 states and 483 transitions. [2023-12-03 02:51:27,317 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 483 transitions. [2023-12-03 02:51:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:51:27,318 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:51:27,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:51:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:51:27,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 02:51:27,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:51:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:52:28,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:52:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 242 states and 486 transitions. [2023-12-03 02:52:28,221 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 486 transitions. [2023-12-03 02:52:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:52:28,222 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:52:28,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:52:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:52:28,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:52:28,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:52:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:52:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:52:32,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 246 states and 493 transitions. [2023-12-03 02:52:32,742 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 493 transitions. [2023-12-03 02:52:32,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:52:32,742 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:52:32,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:52:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:52:32,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 02:52:32,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:52:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:52:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:52:38,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 252 states and 513 transitions. [2023-12-03 02:52:38,712 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 513 transitions. [2023-12-03 02:52:38,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:52:38,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:52:38,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:52:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:52:38,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:52:38,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:52:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-03 02:55:57,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:57,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 261 states and 533 transitions. [2023-12-03 02:55:57,185 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 533 transitions. [2023-12-03 02:55:57,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:55:57,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:57,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:55:57,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-03 02:57:18,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:18,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 263 states and 537 transitions. [2023-12-03 02:57:18,025 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 537 transitions. [2023-12-03 02:57:18,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:57:18,026 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:18,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:57:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:18,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:57:18,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:57:23,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:23,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 271 states and 552 transitions. [2023-12-03 02:57:23,801 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 552 transitions. [2023-12-03 02:57:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 02:57:23,801 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:23,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:57:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:23,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:57:23,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:23,847 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:59:32,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:59:32,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 279 states and 568 transitions. [2023-12-03 02:59:32,126 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 568 transitions. [2023-12-03 02:59:32,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 02:59:32,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:59:32,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:59:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:32,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:59:32,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:59:32,182 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:00:46,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:00:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 281 states and 573 transitions. [2023-12-03 03:00:46,286 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 573 transitions. [2023-12-03 03:00:46,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 03:00:46,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:00:46,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:00:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:46,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 03:00:46,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:00:46,331 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.