./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/nested_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/nested_1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN --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 8828f6ff39cd2bcfba4fe3d04f0119d60137bcad91eabef2e2b840cbd0802b98 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 06:10:11,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 06:10:11,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 06:10:11,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 06:10:11,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 06:10:11,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 06:10:11,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 06:10:11,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 06:10:11,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 06:10:11,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 06:10:11,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 06:10:11,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 06:10:11,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 06:10:11,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 06:10:11,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 06:10:11,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 06:10:11,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 06:10:11,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 06:10:11,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 06:10:11,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 06:10:11,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 06:10:11,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 06:10:11,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 06:10:11,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 06:10:11,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 06:10:11,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 06:10:11,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 06:10:11,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 06:10:11,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 06:10:11,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 06:10:11,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 06:10:11,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 06:10:11,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 06:10:11,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 06:10:11,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 06:10:11,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 06:10:11,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 06:10:11,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 06:10:11,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 06:10:11,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 06:10:11,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 06:10:11,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-21 06:10:11,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 06:10:11,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 06:10:11,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 06:10:11,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 06:10:11,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 06:10:11,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 06:10:11,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 06:10:11,362 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 06:10:11,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 06:10:11,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 06:10:11,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 06:10:11,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 06:10:11,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 06:10:11,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 06:10:11,373 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 06:10:11,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 06:10:11,373 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 06:10:11,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 06:10:11,374 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 06:10:11,374 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 06:10:11,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 06:10:11,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 06:10:11,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 06:10:11,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 06:10:11,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 06:10:11,376 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 06:10:11,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 06:10:11,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 06:10:11,377 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_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8828f6ff39cd2bcfba4fe3d04f0119d60137bcad91eabef2e2b840cbd0802b98 [2021-11-21 06:10:11,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 06:10:11,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 06:10:11,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 06:10:11,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 06:10:11,757 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 06:10:11,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/loop-acceleration/nested_1-2.c [2021-11-21 06:10:11,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/data/a835ff5ff/3ed653e44f7848d0841410db4ac9a799/FLAG717138d33 [2021-11-21 06:10:12,369 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 06:10:12,373 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/sv-benchmarks/c/loop-acceleration/nested_1-2.c [2021-11-21 06:10:12,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/data/a835ff5ff/3ed653e44f7848d0841410db4ac9a799/FLAG717138d33 [2021-11-21 06:10:12,724 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/data/a835ff5ff/3ed653e44f7848d0841410db4ac9a799 [2021-11-21 06:10:12,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 06:10:12,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 06:10:12,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 06:10:12,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 06:10:12,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 06:10:12,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:10:12" (1/1) ... [2021-11-21 06:10:12,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5d77d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:12, skipping insertion in model container [2021-11-21 06:10:12,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:10:12" (1/1) ... [2021-11-21 06:10:12,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 06:10:12,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 06:10:12,987 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_f057c013-c638-422f-820f-c8a09bcd842f/sv-benchmarks/c/loop-acceleration/nested_1-2.c[322,335] [2021-11-21 06:10:13,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 06:10:13,019 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 06:10:13,045 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_f057c013-c638-422f-820f-c8a09bcd842f/sv-benchmarks/c/loop-acceleration/nested_1-2.c[322,335] [2021-11-21 06:10:13,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 06:10:13,067 INFO L208 MainTranslator]: Completed translation [2021-11-21 06:10:13,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13 WrapperNode [2021-11-21 06:10:13,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 06:10:13,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 06:10:13,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 06:10:13,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 06:10:13,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,115 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-11-21 06:10:13,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 06:10:13,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 06:10:13,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 06:10:13,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 06:10:13,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 06:10:13,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 06:10:13,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 06:10:13,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 06:10:13,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 06:10:13,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 06:10:13,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 06:10:13,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f057c013-c638-422f-820f-c8a09bcd842f/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 06:10:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 06:10:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 06:10:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 06:10:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 06:10:13,357 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 06:10:13,359 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 06:10:13,460 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 06:10:13,483 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 06:10:13,483 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-21 06:10:13,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:10:13 BoogieIcfgContainer [2021-11-21 06:10:13,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 06:10:13,487 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 06:10:13,488 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 06:10:13,503 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 06:10:13,503 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:10:13" (1/1) ... [2021-11-21 06:10:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 06:10:13,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:13,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2021-11-21 06:10:13,607 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2021-11-21 06:10:13,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 06:10:13,611 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:13,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:13,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:13,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-21 06:10:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-21 06:10:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 06:10:13,928 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:13,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:14,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:14,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:14,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2021-11-21 06:10:14,070 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-21 06:10:14,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 06:10:14,071 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:14,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:14,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:14,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-11-21 06:10:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-21 06:10:14,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 06:10:14,264 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:14,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:14,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:14,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-21 06:10:14,458 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-21 06:10:14,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 06:10:14,458 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:14,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2021-11-21 06:10:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-21 06:10:14,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 06:10:14,717 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:14,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-21 06:10:14,990 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-21 06:10:14,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 06:10:14,991 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:14,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2021-11-21 06:10:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-21 06:10:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 06:10:15,238 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:15,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:15,426 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2021-11-21 06:10:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-21 06:10:15,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 06:10:15,527 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:15,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:15,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:15,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2021-11-21 06:10:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-11-21 06:10:15,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 06:10:15,824 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:15,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:16,047 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:16,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2021-11-21 06:10:16,157 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-11-21 06:10:16,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 06:10:16,158 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:16,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:16,456 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:10:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:16,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2021-11-21 06:10:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-21 06:10:16,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 06:10:16,584 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:16,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-21 06:10:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:18,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 31 states and 34 transitions. [2021-11-21 06:10:18,045 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-11-21 06:10:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 06:10:18,046 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:18,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-11-21 06:10:20,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:20,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 43 states and 47 transitions. [2021-11-21 06:10:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-11-21 06:10:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-21 06:10:20,521 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:20,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-21 06:10:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 55 states and 60 transitions. [2021-11-21 06:10:22,828 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2021-11-21 06:10:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-21 06:10:22,830 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:22,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 736 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-21 06:10:25,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:25,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 67 states and 73 transitions. [2021-11-21 06:10:25,663 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2021-11-21 06:10:25,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 06:10:25,665 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:25,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-21 06:10:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 79 states and 86 transitions. [2021-11-21 06:10:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2021-11-21 06:10:29,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-21 06:10:29,507 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:29,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:30,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2166 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-11-21 06:10:34,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:34,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 91 states and 99 transitions. [2021-11-21 06:10:34,368 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2021-11-21 06:10:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 06:10:34,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:34,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:35,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2954 backedges. 0 proven. 2569 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-21 06:10:39,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:39,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 103 states and 112 transitions. [2021-11-21 06:10:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2021-11-21 06:10:40,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-21 06:10:40,001 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:40,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:41,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 0 proven. 3424 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-21 06:10:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 115 states and 125 transitions. [2021-11-21 06:10:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2021-11-21 06:10:46,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-21 06:10:46,540 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:46,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4896 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-21 06:10:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:10:53,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 127 states and 138 transitions. [2021-11-21 06:10:53,533 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2021-11-21 06:10:53,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-21 06:10:53,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:10:53,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:10:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:10:55,179 INFO L134 CoverageAnalysis]: Checked inductivity of 6050 backedges. 0 proven. 5500 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-11-21 06:11:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:11:01,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 139 states and 151 transitions. [2021-11-21 06:11:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 151 transitions. [2021-11-21 06:11:01,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-21 06:11:01,948 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:11:01,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:11:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:11:03,775 INFO L134 CoverageAnalysis]: Checked inductivity of 7326 backedges. 0 proven. 6721 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2021-11-21 06:11:10,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:11:10,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 151 states and 164 transitions. [2021-11-21 06:11:10,855 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 164 transitions. [2021-11-21 06:11:10,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-21 06:11:10,856 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:11:10,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:11:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:11:13,515 INFO L134 CoverageAnalysis]: Checked inductivity of 8724 backedges. 0 proven. 8064 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2021-11-21 06:11:22,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:11:22,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 163 states and 177 transitions. [2021-11-21 06:11:22,058 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 177 transitions. [2021-11-21 06:11:22,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-21 06:11:22,059 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:11:22,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:11:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:11:24,319 INFO L134 CoverageAnalysis]: Checked inductivity of 10244 backedges. 0 proven. 9529 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-11-21 06:11:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:11:33,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 175 states and 190 transitions. [2021-11-21 06:11:33,351 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 190 transitions. [2021-11-21 06:11:33,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-21 06:11:33,352 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:11:33,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:11:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:11:36,363 INFO L134 CoverageAnalysis]: Checked inductivity of 11886 backedges. 0 proven. 11116 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2021-11-21 06:11:46,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:11:46,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 187 states and 203 transitions. [2021-11-21 06:11:46,631 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 203 transitions. [2021-11-21 06:11:46,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-21 06:11:46,632 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:11:46,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:11:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:11:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 13650 backedges. 0 proven. 12825 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2021-11-21 06:12:01,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:12:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 199 states and 216 transitions. [2021-11-21 06:12:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 216 transitions. [2021-11-21 06:12:01,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-21 06:12:01,437 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:12:01,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:12:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:12:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 15536 backedges. 0 proven. 14656 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2021-11-21 06:12:17,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:12:17,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 211 states and 229 transitions. [2021-11-21 06:12:17,004 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 229 transitions. [2021-11-21 06:12:17,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-21 06:12:17,006 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:12:17,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:12:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:12:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 17544 backedges. 0 proven. 16609 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-11-21 06:12:33,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:12:33,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 223 states and 242 transitions. [2021-11-21 06:12:33,956 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 242 transitions. [2021-11-21 06:12:33,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-21 06:12:33,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:12:33,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:12:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:12:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 19674 backedges. 0 proven. 18684 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-21 06:12:51,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:12:51,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 235 states and 255 transitions. [2021-11-21 06:12:51,328 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 255 transitions. [2021-11-21 06:12:51,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-21 06:12:51,329 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:12:51,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:12:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:12:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 21926 backedges. 0 proven. 20881 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2021-11-21 06:13:10,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:13:10,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 247 states and 268 transitions. [2021-11-21 06:13:10,445 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 268 transitions. [2021-11-21 06:13:10,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-21 06:13:10,447 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:13:10,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:13:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:13:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 24300 backedges. 0 proven. 23200 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-11-21 06:13:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:13:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 259 states and 281 transitions. [2021-11-21 06:13:31,016 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 281 transitions. [2021-11-21 06:13:31,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-21 06:13:31,017 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:13:31,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:13:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:13:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 26796 backedges. 0 proven. 25641 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2021-11-21 06:13:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:13:53,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 271 states and 294 transitions. [2021-11-21 06:13:53,425 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 294 transitions. [2021-11-21 06:13:53,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-21 06:13:53,426 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:13:53,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:13:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:13:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 29414 backedges. 0 proven. 28204 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2021-11-21 06:14:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:14:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 283 states and 307 transitions. [2021-11-21 06:14:17,238 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 307 transitions. [2021-11-21 06:14:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-21 06:14:17,239 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:14:17,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:14:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:14:24,417 INFO L134 CoverageAnalysis]: Checked inductivity of 32154 backedges. 0 proven. 30889 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2021-11-21 06:14:43,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:14:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 295 states and 320 transitions. [2021-11-21 06:14:43,469 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 320 transitions. [2021-11-21 06:14:43,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-11-21 06:14:43,471 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:14:43,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:14:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:14:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 35016 backedges. 0 proven. 33696 refuted. 0 times theorem prover too weak. 1320 trivial. 0 not checked. [2021-11-21 06:15:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:15:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 307 states and 333 transitions. [2021-11-21 06:15:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 333 transitions. [2021-11-21 06:15:11,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-21 06:15:11,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:15:11,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:15:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:15:20,273 INFO L134 CoverageAnalysis]: Checked inductivity of 38000 backedges. 0 proven. 36625 refuted. 0 times theorem prover too weak. 1375 trivial. 0 not checked. [2021-11-21 06:15:42,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:15:42,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 319 states and 346 transitions. [2021-11-21 06:15:42,281 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 346 transitions. [2021-11-21 06:15:42,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-11-21 06:15:42,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:15:42,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:15:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:15:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 41106 backedges. 0 proven. 39676 refuted. 0 times theorem prover too weak. 1430 trivial. 0 not checked. [2021-11-21 06:16:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:16:15,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 331 states and 359 transitions. [2021-11-21 06:16:15,530 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 359 transitions. [2021-11-21 06:16:15,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-21 06:16:15,532 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:16:15,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:16:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:16:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 44334 backedges. 0 proven. 42849 refuted. 0 times theorem prover too weak. 1485 trivial. 0 not checked. [2021-11-21 06:16:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:16:50,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 343 states and 372 transitions. [2021-11-21 06:16:50,289 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 372 transitions. [2021-11-21 06:16:50,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-11-21 06:16:50,291 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:16:50,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:16:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:17:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 47684 backedges. 0 proven. 46144 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2021-11-21 06:17:27,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:17:27,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 355 states and 385 transitions. [2021-11-21 06:17:27,440 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 385 transitions. [2021-11-21 06:17:27,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-21 06:17:27,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:17:27,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:17:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:17:39,663 INFO L134 CoverageAnalysis]: Checked inductivity of 51156 backedges. 0 proven. 49561 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-21 06:18:07,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:18:07,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 367 states and 398 transitions. [2021-11-21 06:18:07,087 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 398 transitions. [2021-11-21 06:18:07,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2021-11-21 06:18:07,089 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:18:07,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:18:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:18:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 54750 backedges. 0 proven. 53100 refuted. 0 times theorem prover too weak. 1650 trivial. 0 not checked. [2021-11-21 06:18:47,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:18:47,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 379 states and 411 transitions. [2021-11-21 06:18:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 411 transitions. [2021-11-21 06:18:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2021-11-21 06:18:47,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:18:47,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:18:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:19:00,037 INFO L134 CoverageAnalysis]: Checked inductivity of 58466 backedges. 0 proven. 56761 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2021-11-21 06:19:29,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:19:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 391 states and 424 transitions. [2021-11-21 06:19:29,060 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 424 transitions. [2021-11-21 06:19:29,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-11-21 06:19:29,062 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:19:29,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:19:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:19:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 62304 backedges. 0 proven. 60544 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2021-11-21 06:20:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:20:12,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 403 states and 437 transitions. [2021-11-21 06:20:12,993 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 437 transitions. [2021-11-21 06:20:12,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-11-21 06:20:12,995 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:20:12,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:20:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:20:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 66264 backedges. 0 proven. 64449 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2021-11-21 06:20:59,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:20:59,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 415 states and 450 transitions. [2021-11-21 06:20:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 450 transitions. [2021-11-21 06:20:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-21 06:20:59,435 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:20:59,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:20:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:21:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 70346 backedges. 0 proven. 68476 refuted. 0 times theorem prover too weak. 1870 trivial. 0 not checked. [2021-11-21 06:21:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:21:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 427 states and 463 transitions. [2021-11-21 06:21:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 463 transitions. [2021-11-21 06:21:48,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-21 06:21:48,910 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:21:48,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:21:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat