./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu --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 a053a782decb11d2f285c3ec51c61736c730fd1e4c1a5a335f84feb7be146afe --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:39,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:39,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:39,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:39,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:39,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:39,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:39,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:39,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:39,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:39,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:39,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:39,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:39,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:39,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:39,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:39,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:39,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:39,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:39,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:39,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:39,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:39,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:39,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:39,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:39,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:39,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:39,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:39,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:39,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:39,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:39,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:39,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:39,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:39,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:39,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:39,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:39,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:39,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:39,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:39,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:39,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:03:39,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:39,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:39,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:39,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:39,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:39,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:39,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:39,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:39,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:03:39,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:39,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:39,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:39,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:39,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:39,497 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:39,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:39,498 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:39,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:39,498 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:39,498 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:39,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:39,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:39,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:39,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:39,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:39,500 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:03:39,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:03:39,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:39,501 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_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a053a782decb11d2f285c3ec51c61736c730fd1e4c1a5a335f84feb7be146afe [2021-11-23 15:03:39,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:39,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:39,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:39,861 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:39,862 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:39,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2021-11-23 15:03:39,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/data/2fa446233/1f9f153491ac4f44a5844a26980b9223/FLAGebb78bc05 [2021-11-23 15:03:40,546 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:40,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2021-11-23 15:03:40,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/data/2fa446233/1f9f153491ac4f44a5844a26980b9223/FLAGebb78bc05 [2021-11-23 15:03:40,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/data/2fa446233/1f9f153491ac4f44a5844a26980b9223 [2021-11-23 15:03:40,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:40,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:40,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:40,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:40,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:40,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:40" (1/1) ... [2021-11-23 15:03:40,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6582804c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:40, skipping insertion in model container [2021-11-23 15:03:40,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:40" (1/1) ... [2021-11-23 15:03:40,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:40,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:41,201 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_f84cf327-9fbf-4ea3-8c14-be389399f497/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2021-11-23 15:03:41,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:41,227 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:41,275 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_f84cf327-9fbf-4ea3-8c14-be389399f497/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2021-11-23 15:03:41,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:41,294 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:41,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41 WrapperNode [2021-11-23 15:03:41,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:41,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:41,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:41,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:41,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,340 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2021-11-23 15:03:41,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:41,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:41,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:41,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:41,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:41,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:41,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:41,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:41,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:41,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:41,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:41,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf327-9fbf-4ea3-8c14-be389399f497/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:03:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:41,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:41,549 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:41,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:41,697 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:41,710 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 15:03:41,710 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 15:03:41,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:41 BoogieIcfgContainer [2021-11-23 15:03:41,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 15:03:41,714 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 15:03:41,714 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 15:03:41,727 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 15:03:41,728 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:41" (1/1) ... [2021-11-23 15:03:41,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 15:03:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 14 states and 22 transitions. [2021-11-23 15:03:41,812 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 22 transitions. [2021-11-23 15:03:41,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 15:03:41,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:41,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:41,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 15:03:41,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:42,619 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 15:03:42,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 16 states and 27 transitions. [2021-11-23 15:03:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 27 transitions. [2021-11-23 15:03:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 15:03:42,945 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:42,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:43,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 15:03:43,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:43,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 18 states and 34 transitions. [2021-11-23 15:03:43,676 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 34 transitions. [2021-11-23 15:03:43,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 15:03:43,677 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:43,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:43,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-23 15:03:43,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:44,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 20 states and 40 transitions. [2021-11-23 15:03:45,301 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 40 transitions. [2021-11-23 15:03:45,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 15:03:45,301 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:45,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:45,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-23 15:03:45,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:46,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 22 states and 48 transitions. [2021-11-23 15:03:46,114 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 48 transitions. [2021-11-23 15:03:46,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 15:03:46,115 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:46,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:46,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-23 15:03:46,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 24 states and 57 transitions. [2021-11-23 15:03:46,914 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 57 transitions. [2021-11-23 15:03:46,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 15:03:46,915 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:46,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:46,958 WARN L261 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-23 15:03:46,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:47,357 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:47,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 26 states and 67 transitions. [2021-11-23 15:03:47,869 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 67 transitions. [2021-11-23 15:03:47,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 15:03:47,870 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:47,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:47,907 WARN L261 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-23 15:03:47,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:48,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 28 states and 78 transitions. [2021-11-23 15:03:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 78 transitions. [2021-11-23 15:03:48,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 15:03:48,781 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:48,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:48,816 WARN L261 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-23 15:03:48,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:49,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 30 states and 90 transitions. [2021-11-23 15:03:49,791 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 90 transitions. [2021-11-23 15:03:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 15:03:49,792 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:49,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:49,832 WARN L261 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-23 15:03:49,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:50,209 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:50,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 32 states and 103 transitions. [2021-11-23 15:03:50,958 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 103 transitions. [2021-11-23 15:03:50,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 15:03:50,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:50,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:51,009 WARN L261 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-23 15:03:51,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:51,456 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:52,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:52,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 34 states and 117 transitions. [2021-11-23 15:03:52,328 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 117 transitions. [2021-11-23 15:03:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 15:03:52,329 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:52,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:52,393 WARN L261 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-23 15:03:52,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:53,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:53,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 36 states and 132 transitions. [2021-11-23 15:03:53,670 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 132 transitions. [2021-11-23 15:03:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 15:03:53,671 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:53,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:53,712 WARN L261 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 72 conjunts are in the unsatisfiable core [2021-11-23 15:03:53,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:55,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 38 states and 148 transitions. [2021-11-23 15:03:55,107 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 148 transitions. [2021-11-23 15:03:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 15:03:55,108 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:55,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:55,147 WARN L261 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 76 conjunts are in the unsatisfiable core [2021-11-23 15:03:55,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:55,651 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:56,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 40 states and 165 transitions. [2021-11-23 15:03:56,604 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 165 transitions. [2021-11-23 15:03:56,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 15:03:56,605 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:56,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:56,669 WARN L261 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 80 conjunts are in the unsatisfiable core [2021-11-23 15:03:56,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:03:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:03:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 42 states and 183 transitions. [2021-11-23 15:03:58,511 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 183 transitions. [2021-11-23 15:03:58,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 15:03:58,512 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:03:58,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:03:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:03:58,581 WARN L261 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 84 conjunts are in the unsatisfiable core [2021-11-23 15:03:58,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:03:59,253 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:00,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 44 states and 202 transitions. [2021-11-23 15:04:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 202 transitions. [2021-11-23 15:04:00,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 15:04:00,240 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:00,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:00,281 WARN L261 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 88 conjunts are in the unsatisfiable core [2021-11-23 15:04:00,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:00,802 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:01,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 46 states and 222 transitions. [2021-11-23 15:04:01,875 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 222 transitions. [2021-11-23 15:04:01,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 15:04:01,876 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:01,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:01,919 WARN L261 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 92 conjunts are in the unsatisfiable core [2021-11-23 15:04:01,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:02,721 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:03,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 48 states and 243 transitions. [2021-11-23 15:04:03,757 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 243 transitions. [2021-11-23 15:04:03,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 15:04:03,758 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:03,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:03,798 WARN L261 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-23 15:04:03,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:05,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 50 states and 265 transitions. [2021-11-23 15:04:05,631 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 265 transitions. [2021-11-23 15:04:05,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 15:04:05,632 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:05,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:05,705 WARN L261 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 100 conjunts are in the unsatisfiable core [2021-11-23 15:04:05,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:07,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:07,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 52 states and 288 transitions. [2021-11-23 15:04:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 288 transitions. [2021-11-23 15:04:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 15:04:07,866 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:07,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:07,921 WARN L261 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 104 conjunts are in the unsatisfiable core [2021-11-23 15:04:07,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:10,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 54 states and 312 transitions. [2021-11-23 15:04:10,031 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 312 transitions. [2021-11-23 15:04:10,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 15:04:10,031 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:10,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:10,092 WARN L261 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 108 conjunts are in the unsatisfiable core [2021-11-23 15:04:10,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:12,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 56 states and 337 transitions. [2021-11-23 15:04:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 337 transitions. [2021-11-23 15:04:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 15:04:12,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:12,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:12,475 WARN L261 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 113 conjunts are in the unsatisfiable core [2021-11-23 15:04:12,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:14,718 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 58 states and 363 transitions. [2021-11-23 15:04:17,899 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 363 transitions. [2021-11-23 15:04:17,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 15:04:17,899 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:17,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:17,962 WARN L261 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 116 conjunts are in the unsatisfiable core [2021-11-23 15:04:17,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:20,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 60 states and 390 transitions. [2021-11-23 15:04:20,923 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 390 transitions. [2021-11-23 15:04:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 15:04:20,924 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:20,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:20,980 WARN L261 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 120 conjunts are in the unsatisfiable core [2021-11-23 15:04:20,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:24,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:24,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 62 states and 418 transitions. [2021-11-23 15:04:24,071 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 418 transitions. [2021-11-23 15:04:24,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 15:04:24,072 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:24,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:24,135 WARN L261 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 124 conjunts are in the unsatisfiable core [2021-11-23 15:04:24,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:26,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 64 states and 447 transitions. [2021-11-23 15:04:26,954 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 447 transitions. [2021-11-23 15:04:26,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 15:04:26,955 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:26,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:27,026 WARN L261 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 128 conjunts are in the unsatisfiable core [2021-11-23 15:04:27,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:28,206 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 66 states and 477 transitions. [2021-11-23 15:04:30,314 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 477 transitions. [2021-11-23 15:04:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 15:04:30,314 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:30,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:30,385 WARN L261 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 132 conjunts are in the unsatisfiable core [2021-11-23 15:04:30,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:33,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 68 states and 508 transitions. [2021-11-23 15:04:33,753 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 508 transitions. [2021-11-23 15:04:33,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 15:04:33,754 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:33,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:33,830 WARN L261 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 136 conjunts are in the unsatisfiable core [2021-11-23 15:04:33,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:35,369 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:37,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 70 states and 540 transitions. [2021-11-23 15:04:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 540 transitions. [2021-11-23 15:04:37,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 15:04:37,510 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:37,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:37,567 WARN L261 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 140 conjunts are in the unsatisfiable core [2021-11-23 15:04:37,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:39,257 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:41,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:41,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 72 states and 573 transitions. [2021-11-23 15:04:41,525 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 573 transitions. [2021-11-23 15:04:41,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 15:04:41,526 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:41,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:41,603 WARN L261 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 144 conjunts are in the unsatisfiable core [2021-11-23 15:04:41,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:43,253 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 74 states and 607 transitions. [2021-11-23 15:04:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 607 transitions. [2021-11-23 15:04:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 15:04:45,599 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:45,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:45,688 WARN L261 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 148 conjunts are in the unsatisfiable core [2021-11-23 15:04:45,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:50,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:50,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 76 states and 642 transitions. [2021-11-23 15:04:50,338 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 642 transitions. [2021-11-23 15:04:50,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 15:04:50,339 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:50,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:50,421 WARN L261 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 152 conjunts are in the unsatisfiable core [2021-11-23 15:04:50,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:55,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 78 states and 678 transitions. [2021-11-23 15:04:55,191 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 678 transitions. [2021-11-23 15:04:55,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 15:04:55,191 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:55,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:55,272 WARN L261 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 156 conjunts are in the unsatisfiable core [2021-11-23 15:04:55,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:04:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:04:59,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:04:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 80 states and 715 transitions. [2021-11-23 15:04:59,377 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 715 transitions. [2021-11-23 15:04:59,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 15:04:59,378 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:04:59,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:04:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:04:59,474 WARN L261 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 160 conjunts are in the unsatisfiable core [2021-11-23 15:04:59,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:05:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:05:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:05:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 82 states and 753 transitions. [2021-11-23 15:05:04,784 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 753 transitions. [2021-11-23 15:05:04,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 15:05:04,785 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:05:04,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:05:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:05:04,868 WARN L261 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 164 conjunts are in the unsatisfiable core [2021-11-23 15:05:04,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:05:07,445 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:05:10,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:05:10,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 84 states and 792 transitions. [2021-11-23 15:05:10,855 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 792 transitions. [2021-11-23 15:05:10,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 15:05:10,855 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:05:10,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:05:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:05:10,949 WARN L261 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 168 conjunts are in the unsatisfiable core [2021-11-23 15:05:10,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:05:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:05:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:05:17,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 86 states and 832 transitions. [2021-11-23 15:05:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 832 transitions. [2021-11-23 15:05:17,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 15:05:17,711 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:05:17,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:05:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:05:17,799 WARN L261 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 172 conjunts are in the unsatisfiable core [2021-11-23 15:05:17,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:05:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:05:24,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:05:24,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 88 states and 873 transitions. [2021-11-23 15:05:24,645 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 873 transitions. [2021-11-23 15:05:24,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 15:05:24,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:05:24,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:05:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:05:24,752 WARN L261 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 176 conjunts are in the unsatisfiable core [2021-11-23 15:05:24,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:05:27,228 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:05:31,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:05:31,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 90 states and 915 transitions. [2021-11-23 15:05:31,436 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 915 transitions. [2021-11-23 15:05:31,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 15:05:31,437 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:05:31,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:05:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:05:31,568 WARN L261 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 180 conjunts are in the unsatisfiable core [2021-11-23 15:05:31,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:05:35,224 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:05:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:05:40,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 92 states and 958 transitions. [2021-11-23 15:05:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 958 transitions. [2021-11-23 15:05:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 15:05:40,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:05:40,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:05:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:05:40,192 WARN L261 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 184 conjunts are in the unsatisfiable core [2021-11-23 15:05:40,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:05:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:05:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:05:47,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 94 states and 1002 transitions. [2021-11-23 15:05:47,973 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 1002 transitions. [2021-11-23 15:05:47,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 15:05:47,974 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:05:47,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:05:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:05:48,096 WARN L261 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 188 conjunts are in the unsatisfiable core [2021-11-23 15:05:48,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:05:52,031 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:05:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:05:56,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 96 states and 1047 transitions. [2021-11-23 15:05:56,540 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 1047 transitions. [2021-11-23 15:05:56,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 15:05:56,541 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:05:56,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:05:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:05:56,655 WARN L261 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 192 conjunts are in the unsatisfiable core [2021-11-23 15:05:56,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:06:00,117 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:06:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:06:05,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 98 states and 1093 transitions. [2021-11-23 15:06:05,163 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 1093 transitions. [2021-11-23 15:06:05,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 15:06:05,164 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:06:05,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:06:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:06:05,297 WARN L261 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 196 conjunts are in the unsatisfiable core [2021-11-23 15:06:05,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:06:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:06:13,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:06:13,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 100 states and 1140 transitions. [2021-11-23 15:06:13,834 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 1140 transitions. [2021-11-23 15:06:13,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 15:06:13,835 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:06:13,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:06:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:06:13,966 WARN L261 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 200 conjunts are in the unsatisfiable core [2021-11-23 15:06:13,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:06:18,002 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:06:23,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:06:23,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 102 states and 1188 transitions. [2021-11-23 15:06:23,961 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 1188 transitions. [2021-11-23 15:06:23,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 15:06:23,961 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:06:23,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:06:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:06:24,100 WARN L261 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 204 conjunts are in the unsatisfiable core [2021-11-23 15:06:24,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:06:28,757 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:06:34,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:06:34,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 104 states and 1237 transitions. [2021-11-23 15:06:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 1237 transitions. [2021-11-23 15:06:34,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 15:06:34,567 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:06:34,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:06:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:06:34,707 WARN L261 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 208 conjunts are in the unsatisfiable core [2021-11-23 15:06:34,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:06:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:06:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:06:45,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 106 states and 1287 transitions. [2021-11-23 15:06:45,383 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 1287 transitions. [2021-11-23 15:06:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 15:06:45,384 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:06:45,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:06:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:06:45,562 WARN L261 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 212 conjunts are in the unsatisfiable core [2021-11-23 15:06:45,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:06:50,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:06:56,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:06:56,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 108 states and 1338 transitions. [2021-11-23 15:06:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 1338 transitions. [2021-11-23 15:06:56,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 15:06:56,437 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:06:56,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:06:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:06:56,603 WARN L261 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 216 conjunts are in the unsatisfiable core [2021-11-23 15:06:56,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:07:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:07:07,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:07:07,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 110 states and 1390 transitions. [2021-11-23 15:07:07,971 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 1390 transitions. [2021-11-23 15:07:07,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 15:07:07,972 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:07:07,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:07:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:07:08,083 WARN L261 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 220 conjunts are in the unsatisfiable core [2021-11-23 15:07:08,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:07:14,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:07:20,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:07:20,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 112 states and 1443 transitions. [2021-11-23 15:07:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 1443 transitions. [2021-11-23 15:07:20,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 15:07:20,459 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:07:20,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:07:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:07:20,607 WARN L261 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 224 conjunts are in the unsatisfiable core [2021-11-23 15:07:20,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:07:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:07:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:07:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 114 states and 1497 transitions. [2021-11-23 15:07:33,521 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 1497 transitions. [2021-11-23 15:07:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 15:07:33,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:07:33,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:07:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:07:33,691 WARN L261 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 228 conjunts are in the unsatisfiable core [2021-11-23 15:07:33,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:07:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:07:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:07:45,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 116 states and 1552 transitions. [2021-11-23 15:07:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 1552 transitions. [2021-11-23 15:07:45,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 15:07:45,601 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:07:45,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:07:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:07:45,758 WARN L261 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 232 conjunts are in the unsatisfiable core [2021-11-23 15:07:45,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:07:51,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:07:58,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:07:58,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 118 states and 1608 transitions. [2021-11-23 15:07:58,811 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 1608 transitions. [2021-11-23 15:07:58,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 15:07:58,811 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:07:58,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:07:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:07:58,934 WARN L261 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 236 conjunts are in the unsatisfiable core [2021-11-23 15:07:58,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:08:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:08:12,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:08:12,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 120 states and 1665 transitions. [2021-11-23 15:08:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 1665 transitions. [2021-11-23 15:08:12,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 15:08:12,685 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:08:12,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:08:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:08:12,843 WARN L261 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 240 conjunts are in the unsatisfiable core [2021-11-23 15:08:12,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:08:19,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:08:27,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:08:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 122 states and 1723 transitions. [2021-11-23 15:08:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 1723 transitions. [2021-11-23 15:08:27,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 15:08:27,073 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:08:27,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:08:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:08:27,245 WARN L261 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 244 conjunts are in the unsatisfiable core [2021-11-23 15:08:27,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:08:34,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:08:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:08:42,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 124 states and 1782 transitions. [2021-11-23 15:08:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 1782 transitions. [2021-11-23 15:08:42,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 15:08:42,860 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:08:42,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:08:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:08:42,994 WARN L261 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 248 conjunts are in the unsatisfiable core [2021-11-23 15:08:42,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:08:51,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:08:58,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:08:58,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 126 states and 1842 transitions. [2021-11-23 15:08:58,987 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 1842 transitions. [2021-11-23 15:08:58,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 15:08:58,988 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:08:58,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:08:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:08:59,175 WARN L261 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 252 conjunts are in the unsatisfiable core [2021-11-23 15:08:59,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:09:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:09:14,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:09:14,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 128 states and 1903 transitions. [2021-11-23 15:09:14,102 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 1903 transitions. [2021-11-23 15:09:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 15:09:14,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:09:14,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:09:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:09:14,291 WARN L261 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 256 conjunts are in the unsatisfiable core [2021-11-23 15:09:14,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:09:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:09:28,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:09:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 130 states and 1965 transitions. [2021-11-23 15:09:28,980 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 1965 transitions. [2021-11-23 15:09:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 15:09:28,980 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:09:28,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:09:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:09:29,176 WARN L261 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 260 conjunts are in the unsatisfiable core [2021-11-23 15:09:29,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:09:36,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:09:44,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:09:44,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 132 states and 2028 transitions. [2021-11-23 15:09:44,858 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 2028 transitions. [2021-11-23 15:09:44,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 15:09:44,859 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:09:44,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:09:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:09:45,049 WARN L261 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 264 conjunts are in the unsatisfiable core [2021-11-23 15:09:45,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:09:54,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:10:02,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:10:02,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 134 states and 2092 transitions. [2021-11-23 15:10:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 2092 transitions. [2021-11-23 15:10:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 15:10:02,898 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:10:02,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:10:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:10:03,083 WARN L261 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 268 conjunts are in the unsatisfiable core [2021-11-23 15:10:03,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:10:11,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:10:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:10:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 136 states and 2157 transitions. [2021-11-23 15:10:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 2157 transitions. [2021-11-23 15:10:20,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 15:10:20,715 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:10:20,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:10:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:10:20,871 WARN L261 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 272 conjunts are in the unsatisfiable core [2021-11-23 15:10:20,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:10:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:10:39,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:10:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 138 states and 2223 transitions. [2021-11-23 15:10:39,029 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 2223 transitions. [2021-11-23 15:10:39,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 15:10:39,030 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:10:39,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:10:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:10:39,220 WARN L261 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 276 conjunts are in the unsatisfiable core [2021-11-23 15:10:39,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:10:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:10:59,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:10:59,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 140 states and 2290 transitions. [2021-11-23 15:10:59,993 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 2290 transitions. [2021-11-23 15:10:59,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 15:10:59,994 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:10:59,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:11:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:11:00,222 WARN L261 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 280 conjunts are in the unsatisfiable core [2021-11-23 15:11:00,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:11:11,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:11:21,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:11:21,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2358 states to 142 states and 2358 transitions. [2021-11-23 15:11:21,510 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 2358 transitions. [2021-11-23 15:11:21,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 15:11:21,511 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:11:21,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:11:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:11:21,671 WARN L261 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 284 conjunts are in the unsatisfiable core [2021-11-23 15:11:21,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:11:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:11:42,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:11:42,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 144 states and 2427 transitions. [2021-11-23 15:11:42,769 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 2427 transitions. [2021-11-23 15:11:42,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 15:11:42,770 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:11:42,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:11:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:11:43,043 WARN L261 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 288 conjunts are in the unsatisfiable core [2021-11-23 15:11:43,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:11:52,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:12:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:12:03,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 146 states and 2497 transitions. [2021-11-23 15:12:03,263 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 2497 transitions. [2021-11-23 15:12:03,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 15:12:03,264 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:12:03,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:12:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:12:03,458 WARN L261 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 292 conjunts are in the unsatisfiable core [2021-11-23 15:12:03,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:12:14,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:12:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:12:25,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 148 states and 2568 transitions. [2021-11-23 15:12:25,197 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 2568 transitions. [2021-11-23 15:12:25,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 15:12:25,198 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:12:25,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:12:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:12:25,366 WARN L261 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 296 conjunts are in the unsatisfiable core [2021-11-23 15:12:25,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:12:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:12:47,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:12:47,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 150 states and 2640 transitions. [2021-11-23 15:12:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 2640 transitions. [2021-11-23 15:12:47,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 15:12:47,514 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:12:47,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:12:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:12:47,778 WARN L261 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 300 conjunts are in the unsatisfiable core [2021-11-23 15:12:47,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:13:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:13:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:13:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2713 states to 152 states and 2713 transitions. [2021-11-23 15:13:13,439 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 2713 transitions. [2021-11-23 15:13:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 15:13:13,440 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:13:13,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:13:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:13:13,693 WARN L261 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 304 conjunts are in the unsatisfiable core [2021-11-23 15:13:13,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:13:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:13:40,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:13:40,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 154 states and 2787 transitions. [2021-11-23 15:13:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 2787 transitions. [2021-11-23 15:13:40,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 15:13:40,574 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:13:40,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:13:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:13:40,823 WARN L261 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 308 conjunts are in the unsatisfiable core [2021-11-23 15:13:40,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:13:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:14:08,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:14:08,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 156 states and 2862 transitions. [2021-11-23 15:14:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 2862 transitions. [2021-11-23 15:14:08,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-23 15:14:08,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:14:08,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:14:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:14:08,623 WARN L261 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 312 conjunts are in the unsatisfiable core [2021-11-23 15:14:08,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:14:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:14:33,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:14:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 158 states and 2938 transitions. [2021-11-23 15:14:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 2938 transitions. [2021-11-23 15:14:33,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-23 15:14:33,559 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:14:33,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:14:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:14:33,884 WARN L261 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 316 conjunts are in the unsatisfiable core [2021-11-23 15:14:33,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:14:46,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:14:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:14:58,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 160 states and 3015 transitions. [2021-11-23 15:14:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 3015 transitions. [2021-11-23 15:14:58,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 15:14:58,542 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:14:58,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:14:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:14:58,776 WARN L261 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 320 conjunts are in the unsatisfiable core [2021-11-23 15:14:58,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:15:16,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:15:29,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:15:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 162 states and 3093 transitions. [2021-11-23 15:15:29,678 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 3093 transitions. [2021-11-23 15:15:29,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-23 15:15:29,678 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:15:29,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:15:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:15:29,881 WARN L261 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 324 conjunts are in the unsatisfiable core [2021-11-23 15:15:29,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 15:15:47,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.