./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --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 efc4103a673d30f5c3fd98741c7d56d84f1ec5a0e9e3b77a4d9f9d9493ec5192 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:56:10,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:56:10,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:56:10,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:56:10,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:56:10,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:56:10,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:56:10,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:56:10,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:56:10,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:56:10,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:56:10,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:56:10,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:56:10,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:56:10,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:56:10,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:56:10,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:56:10,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:56:10,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:56:10,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:56:10,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:56:10,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:56:10,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:56:10,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:56:10,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:56:10,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:56:10,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:56:10,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:56:10,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:56:10,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:56:10,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:56:10,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:56:10,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:56:10,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:56:10,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:56:10,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:56:10,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:56:10,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:56:10,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:56:10,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:56:10,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:56:10,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:56:10,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:56:10,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:56:10,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:56:10,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:56:10,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:56:10,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:56:10,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:56:10,281 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:56:10,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:56:10,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:56:10,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:56:10,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:56:10,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:56:10,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:56:10,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:56:10,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:56:10,289 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:56:10,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:56:10,290 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:56:10,290 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:56:10,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:56:10,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:56:10,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:56:10,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:56:10,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:56:10,292 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:56:10,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:56:10,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:56:10,292 INFO L138 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_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efc4103a673d30f5c3fd98741c7d56d84f1ec5a0e9e3b77a4d9f9d9493ec5192 [2021-11-23 00:56:10,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:56:10,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:56:10,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:56:10,560 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:56:10,561 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:56:10,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c [2021-11-23 00:56:10,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/data/910acde3a/1f32c967112c49b9baf9d25c80b23aa3/FLAGf5697a17c [2021-11-23 00:56:11,030 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:56:11,031 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c [2021-11-23 00:56:11,037 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/data/910acde3a/1f32c967112c49b9baf9d25c80b23aa3/FLAGf5697a17c [2021-11-23 00:56:11,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/data/910acde3a/1f32c967112c49b9baf9d25c80b23aa3 [2021-11-23 00:56:11,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:56:11,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:56:11,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:56:11,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:56:11,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:56:11,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431777d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11, skipping insertion in model container [2021-11-23 00:56:11,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:56:11,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:56:11,645 WARN L230 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_475fd25b-be57-4f8d-8a28-589089c17ee3/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c[538,551] [2021-11-23 00:56:11,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:56:11,686 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:56:11,703 WARN L230 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_475fd25b-be57-4f8d-8a28-589089c17ee3/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c[538,551] [2021-11-23 00:56:11,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:56:11,740 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:56:11,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11 WrapperNode [2021-11-23 00:56:11,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:56:11,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:56:11,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:56:11,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:56:11,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,780 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2021-11-23 00:56:11,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:56:11,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:56:11,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:56:11,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:56:11,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:56:11,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:56:11,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:56:11,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:56:11,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:11" (1/1) ... [2021-11-23 00:56:11,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:56:11,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:56:11,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:56:11,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_475fd25b-be57-4f8d-8a28-589089c17ee3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:56:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:56:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:56:11,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:56:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:56:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:56:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:56:11,985 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:56:11,987 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:56:12,102 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:56:12,133 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:56:12,134 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 00:56:12,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:56:12 BoogieIcfgContainer [2021-11-23 00:56:12,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:56:12,138 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:56:12,138 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:56:12,149 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:56:12,149 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:56:12" (1/1) ... [2021-11-23 00:56:12,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:56:12,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-23 00:56:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-23 00:56:12,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:56:12,220 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:12,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:12,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:56:12,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:12,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 00:56:12,455 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 00:56:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:56:12,456 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:12,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:56:12,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:12,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2021-11-23 00:56:12,720 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2021-11-23 00:56:12,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:56:12,728 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:12,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:56:12,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:12,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2021-11-23 00:56:12,973 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2021-11-23 00:56:12,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 00:56:12,975 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:12,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:56:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:13,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2021-11-23 00:56:13,514 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2021-11-23 00:56:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:56:13,515 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:13,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:13,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:56:13,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:56:14,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2021-11-23 00:56:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2021-11-23 00:56:14,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:56:14,938 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:14,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:15,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:56:15,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:15,145 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:56:16,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 48 states and 95 transitions. [2021-11-23 00:56:16,345 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 95 transitions. [2021-11-23 00:56:16,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:56:16,347 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:16,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:16,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:56:16,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:56:17,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 52 states and 107 transitions. [2021-11-23 00:56:17,259 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 107 transitions. [2021-11-23 00:56:17,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:56:17,261 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:17,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:17,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:56:17,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:17,389 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:56:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 54 states and 112 transitions. [2021-11-23 00:56:17,758 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 112 transitions. [2021-11-23 00:56:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:56:17,762 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:17,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:17,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:56:17,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:18,083 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:56:19,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:19,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 59 states and 127 transitions. [2021-11-23 00:56:19,203 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 127 transitions. [2021-11-23 00:56:19,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:56:19,205 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:19,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:19,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:56:19,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:19,348 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:56:19,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:19,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 61 states and 128 transitions. [2021-11-23 00:56:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 128 transitions. [2021-11-23 00:56:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:56:19,881 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:19,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:19,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 00:56:19,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:56:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 66 states and 144 transitions. [2021-11-23 00:56:23,261 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 144 transitions. [2021-11-23 00:56:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:56:23,269 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:23,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:23,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 00:56:23,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:23,517 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:56:24,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:24,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 68 states and 145 transitions. [2021-11-23 00:56:24,324 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 145 transitions. [2021-11-23 00:56:24,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 00:56:24,325 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:24,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:24,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 00:56:24,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:56:29,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 74 states and 170 transitions. [2021-11-23 00:56:29,193 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 170 transitions. [2021-11-23 00:56:29,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:56:29,195 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:29,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:29,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:56:29,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:56:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 79 states and 184 transitions. [2021-11-23 00:56:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 184 transitions. [2021-11-23 00:56:32,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 00:56:32,640 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:32,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:32,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:56:32,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:56:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:34,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 81 states and 191 transitions. [2021-11-23 00:56:34,388 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 191 transitions. [2021-11-23 00:56:34,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:56:34,390 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:34,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:34,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:56:34,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:56:39,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:39,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 84 states and 205 transitions. [2021-11-23 00:56:39,464 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 205 transitions. [2021-11-23 00:56:39,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:56:39,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:39,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:39,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:56:39,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:39,833 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:56:43,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 94 states and 275 transitions. [2021-11-23 00:56:43,133 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 275 transitions. [2021-11-23 00:56:43,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:56:43,135 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:43,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:43,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:56:43,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:56:46,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:46,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 97 states and 288 transitions. [2021-11-23 00:56:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 288 transitions. [2021-11-23 00:56:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:56:46,468 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:46,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:46,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:56:46,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:46,877 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:56:48,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 97 states and 287 transitions. [2021-11-23 00:56:48,723 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 287 transitions. [2021-11-23 00:56:48,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:56:48,725 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:48,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:48,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:56:48,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:56:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:49,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 97 states and 286 transitions. [2021-11-23 00:56:49,559 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 286 transitions. [2021-11-23 00:56:49,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:56:49,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:49,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:49,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:56:49,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:56:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 99 states and 294 transitions. [2021-11-23 00:56:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 294 transitions. [2021-11-23 00:56:51,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:56:51,245 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:51,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:51,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:56:51,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-23 00:56:56,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:56,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 102 states and 302 transitions. [2021-11-23 00:56:56,246 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 302 transitions. [2021-11-23 00:56:56,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:56:56,247 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:56,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:56,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:56:56,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-23 00:56:58,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:58,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 104 states and 304 transitions. [2021-11-23 00:56:58,081 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 304 transitions. [2021-11-23 00:56:58,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:56:58,082 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:58,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:58,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:56:58,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:57:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:07,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 110 states and 332 transitions. [2021-11-23 00:57:07,080 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 332 transitions. [2021-11-23 00:57:07,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:57:07,082 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:07,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:07,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:57:07,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:57:07,377 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:57:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:10,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 112 states and 333 transitions. [2021-11-23 00:57:10,268 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 333 transitions. [2021-11-23 00:57:10,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:57:10,270 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:10,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:10,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:57:10,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:57:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:57:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 115 states and 336 transitions. [2021-11-23 00:57:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 336 transitions. [2021-11-23 00:57:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 00:57:15,707 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:15,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:15,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:57:15,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:57:17,141 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:57:40,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 120 states and 367 transitions. [2021-11-23 00:57:40,597 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 367 transitions. [2021-11-23 00:57:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 00:57:40,599 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:40,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:40,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:57:40,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:57:40,753 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:57:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:50,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 122 states and 370 transitions. [2021-11-23 00:57:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 370 transitions. [2021-11-23 00:57:50,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:57:50,925 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:50,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:50,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:57:50,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:57:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:58:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:58:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 131 states and 453 transitions. [2021-11-23 00:58:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 453 transitions. [2021-11-23 00:58:25,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:58:25,058 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:58:25,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:58:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:58:25,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:58:25,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:58:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:58:41,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:58:41,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 134 states and 456 transitions. [2021-11-23 00:58:41,066 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 456 transitions. [2021-11-23 00:58:41,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:58:41,068 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:58:41,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:58:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:58:41,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:58:41,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:58:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:59:31,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:59:31,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 142 states and 506 transitions. [2021-11-23 00:59:31,640 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 506 transitions. [2021-11-23 00:59:31,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:59:31,641 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:59:31,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:59:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:59:31,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:59:31,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:59:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 01:00:07,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 150 states and 537 transitions. [2021-11-23 01:00:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 537 transitions. [2021-11-23 01:00:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 01:00:07,103 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:07,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:00:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:00:07,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 01:00:07,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:00:07,874 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 01:00:14,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 152 states and 543 transitions. [2021-11-23 01:00:14,641 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 543 transitions. [2021-11-23 01:00:14,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 01:00:14,642 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:14,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:00:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:00:14,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:00:14,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:00:14,796 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 01:00:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 152 states and 542 transitions. [2021-11-23 01:00:18,329 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 542 transitions. [2021-11-23 01:00:18,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 01:00:18,330 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:18,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:00:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:00:18,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 01:00:18,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:00:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 01:00:31,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 154 states and 545 transitions. [2021-11-23 01:00:31,617 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 545 transitions. [2021-11-23 01:00:31,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:00:31,624 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:31,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:00:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:00:31,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:00:31,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:00:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:00:56,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 157 states and 561 transitions. [2021-11-23 01:00:56,275 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 561 transitions. [2021-11-23 01:00:56,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:00:56,276 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:56,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:00:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:00:56,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:00:56,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:01:19,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:19,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 159 states and 565 transitions. [2021-11-23 01:01:19,206 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 565 transitions. [2021-11-23 01:01:19,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:01:19,209 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:19,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:19,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:01:19,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:01:29,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:29,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 161 states and 569 transitions. [2021-11-23 01:01:29,559 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 569 transitions. [2021-11-23 01:01:29,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:01:29,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:29,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:29,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 01:01:29,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:39,883 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:02:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 164 states and 596 transitions. [2021-11-23 01:02:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 596 transitions. [2021-11-23 01:02:15,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:02:15,103 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:15,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:15,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:02:15,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:02:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 168 states and 601 transitions. [2021-11-23 01:02:25,870 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 601 transitions. [2021-11-23 01:02:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:02:25,871 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:25,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:25,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 01:02:25,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:26,877 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:03:03,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:03,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 171 states and 617 transitions. [2021-11-23 01:03:03,611 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 617 transitions. [2021-11-23 01:03:03,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:03:03,613 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:03,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:03,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 01:03:03,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:04,579 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:03:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:44,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 174 states and 633 transitions. [2021-11-23 01:03:44,973 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 633 transitions. [2021-11-23 01:03:44,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:03:44,974 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:44,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:45,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:03:45,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:03:51,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 174 states and 632 transitions. [2021-11-23 01:03:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 632 transitions. [2021-11-23 01:03:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:03:51,412 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:51,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:51,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:03:51,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:03:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:58,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 174 states and 631 transitions. [2021-11-23 01:03:58,788 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 631 transitions. [2021-11-23 01:03:58,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 01:03:58,789 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:58,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:58,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:03:58,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:04:17,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:17,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 176 states and 642 transitions. [2021-11-23 01:04:17,553 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 642 transitions. [2021-11-23 01:04:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 01:04:17,554 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:17,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:17,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:17,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:17,778 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-23 01:04:35,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 177 states and 645 transitions. [2021-11-23 01:04:35,008 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 645 transitions. [2021-11-23 01:04:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 01:04:35,009 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:35,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:35,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:35,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-23 01:05:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:07,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 177 states and 644 transitions. [2021-11-23 01:05:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 644 transitions. [2021-11-23 01:05:07,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 01:05:07,124 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:07,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:07,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:05:07,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:07,323 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-23 01:05:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 179 states and 650 transitions. [2021-11-23 01:05:59,915 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 650 transitions. [2021-11-23 01:05:59,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 01:05:59,916 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:59,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:59,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:05:59,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 34 proven. 25 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-23 01:06:18,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:18,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 181 states and 652 transitions. [2021-11-23 01:06:18,238 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 652 transitions. [2021-11-23 01:06:18,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 01:06:18,240 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:18,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:18,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 01:06:18,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 01:07:25,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:25,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 184 states and 678 transitions. [2021-11-23 01:07:25,718 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 678 transitions. [2021-11-23 01:07:25,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:07:25,719 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:25,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:25,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:07:25,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 01:08:28,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 193 states and 786 transitions. [2021-11-23 01:08:28,180 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 786 transitions. [2021-11-23 01:08:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:08:28,181 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:28,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:28,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:08:28,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:31,547 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 01:08:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:43,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 193 states and 782 transitions. [2021-11-23 01:08:43,246 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 782 transitions. [2021-11-23 01:08:43,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:08:43,247 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:43,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:43,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:08:43,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 01:08:51,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:51,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 193 states and 781 transitions. [2021-11-23 01:08:51,813 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 781 transitions. [2021-11-23 01:08:51,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:08:51,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:51,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:51,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:08:51,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 01:09:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 193 states and 780 transitions. [2021-11-23 01:09:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 780 transitions. [2021-11-23 01:09:00,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 01:09:00,695 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:00,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:00,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 01:09:00,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.