./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:23:00,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:23:00,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:23:00,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:23:00,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:23:00,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:23:00,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:23:00,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:23:00,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:23:00,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:23:00,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:23:00,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:23:00,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:23:00,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:23:00,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:23:00,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:23:00,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:23:00,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:23:00,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:23:00,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:23:00,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:23:00,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:23:00,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:23:00,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:23:00,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:23:00,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:23:00,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:23:00,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:23:00,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:23:00,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:23:00,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:23:00,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:23:00,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:23:00,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:23:00,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:23:00,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:23:00,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:23:00,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:23:00,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:23:00,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:23:00,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:23:00,701 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:23:00,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:23:00,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:23:00,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:23:00,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:23:00,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:23:00,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:23:00,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:23:00,750 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:23:00,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:23:00,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:23:00,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:23:00,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:23:00,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:23:00,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:23:00,753 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:23:00,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:23:00,753 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:23:00,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:23:00,754 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:23:00,754 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:23:00,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:23:00,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:23:00,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:23:00,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:23:00,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:23:00,755 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:23:00,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:23:00,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:23:00,756 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_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae [2021-11-22 23:23:01,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:23:01,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:23:01,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:23:01,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:23:01,140 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:23:01,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c [2021-11-22 23:23:01,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/data/6b0b49c01/2f1ea2c220744734b37fda4f6fcf4209/FLAG0431c3425 [2021-11-22 23:23:01,761 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:23:01,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/sv-benchmarks/c/nla-digbench/sqrt1-ll.c [2021-11-22 23:23:01,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/data/6b0b49c01/2f1ea2c220744734b37fda4f6fcf4209/FLAG0431c3425 [2021-11-22 23:23:02,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/data/6b0b49c01/2f1ea2c220744734b37fda4f6fcf4209 [2021-11-22 23:23:02,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:23:02,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:23:02,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:23:02,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:23:02,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:23:02,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379b8d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02, skipping insertion in model container [2021-11-22 23:23:02,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:23:02,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:23:02,374 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_ef35971d-aa9e-40a4-9846-b313eacac10e/sv-benchmarks/c/nla-digbench/sqrt1-ll.c[520,533] [2021-11-22 23:23:02,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:23:02,410 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:23:02,425 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_ef35971d-aa9e-40a4-9846-b313eacac10e/sv-benchmarks/c/nla-digbench/sqrt1-ll.c[520,533] [2021-11-22 23:23:02,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:23:02,461 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:23:02,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02 WrapperNode [2021-11-22 23:23:02,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:23:02,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:23:02,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:23:02,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:23:02,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,494 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2021-11-22 23:23:02,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:23:02,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:23:02,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:23:02,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:23:02,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:23:02,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:23:02,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:23:02,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:23:02,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:23:02,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:23:02,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:23:02,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef35971d-aa9e-40a4-9846-b313eacac10e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:23:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:23:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:23:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:23:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:23:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-22 23:23:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-22 23:23:02,691 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:23:02,693 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:23:02,842 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:23:02,856 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:23:02,857 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:23:02,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:23:02 BoogieIcfgContainer [2021-11-22 23:23:02,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:23:02,860 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:23:02,860 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:23:02,870 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:23:02,871 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:23:02" (1/1) ... [2021-11-22 23:23:02,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:23:02,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2021-11-22 23:23:02,937 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2021-11-22 23:23:02,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 23:23:02,939 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:02,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:03,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:23:03,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2021-11-22 23:23:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-11-22 23:23:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 23:23:03,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:03,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:23:03,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:03,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2021-11-22 23:23:03,371 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2021-11-22 23:23:03,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 23:23:03,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:03,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:03,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:23:03,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:23:03,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2021-11-22 23:23:03,692 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2021-11-22 23:23:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 23:23:03,693 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:03,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:03,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:23:03,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:03,800 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:23:03,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2021-11-22 23:23:03,911 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2021-11-22 23:23:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:23:03,913 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:03,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:03,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:03,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:23:04,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:04,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2021-11-22 23:23:04,532 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2021-11-22 23:23:04,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:23:04,540 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:04,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:04,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:04,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:04,735 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:23:04,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2021-11-22 23:23:04,949 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2021-11-22 23:23:04,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 23:23:04,950 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:04,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:04,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:04,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:05,077 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:23:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2021-11-22 23:23:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-11-22 23:23:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 23:23:05,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:05,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:05,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:23:05,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-22 23:23:05,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2021-11-22 23:23:05,747 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2021-11-22 23:23:05,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-22 23:23:05,749 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:05,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:05,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:05,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:23:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2021-11-22 23:23:06,377 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2021-11-22 23:23:06,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-22 23:23:06,379 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:06,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:06,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:06,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:23:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2021-11-22 23:23:06,833 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2021-11-22 23:23:06,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:23:06,835 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:06,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:06,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:06,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:06,934 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-22 23:23:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2021-11-22 23:23:07,047 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2021-11-22 23:23:07,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 23:23:07,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:07,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:07,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:23:07,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:23:07,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:07,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 67 transitions. [2021-11-22 23:23:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2021-11-22 23:23:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-22 23:23:07,550 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:07,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:07,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:07,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 23:23:07,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 66 transitions. [2021-11-22 23:23:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2021-11-22 23:23:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 23:23:07,744 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:07,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:07,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 23:23:07,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-22 23:23:08,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:08,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 68 transitions. [2021-11-22 23:23:08,335 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2021-11-22 23:23:08,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 23:23:08,336 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:08,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:08,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:23:08,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:23:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:08,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 72 transitions. [2021-11-22 23:23:08,857 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2021-11-22 23:23:08,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 23:23:08,861 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:08,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:08,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:08,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-11-22 23:23:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:09,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 73 transitions. [2021-11-22 23:23:09,133 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2021-11-22 23:23:09,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 23:23:09,134 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:09,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:09,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:23:09,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:09,380 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:23:09,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 79 transitions. [2021-11-22 23:23:09,697 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2021-11-22 23:23:09,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:23:09,698 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:09,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:09,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:09,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-22 23:23:09,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:09,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 78 transitions. [2021-11-22 23:23:09,905 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2021-11-22 23:23:09,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-22 23:23:09,907 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:09,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:09,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-22 23:23:09,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-22 23:23:10,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 46 states and 80 transitions. [2021-11-22 23:23:10,699 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2021-11-22 23:23:10,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-22 23:23:10,700 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:10,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:10,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:23:10,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:23:11,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:11,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 47 states and 84 transitions. [2021-11-22 23:23:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2021-11-22 23:23:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 23:23:11,410 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:11,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:11,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:11,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 59 proven. 7 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-22 23:23:11,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:11,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 85 transitions. [2021-11-22 23:23:11,708 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2021-11-22 23:23:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 23:23:11,709 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:11,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:11,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:23:11,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:11,998 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-22 23:23:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:12,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 51 states and 91 transitions. [2021-11-22 23:23:12,405 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 91 transitions. [2021-11-22 23:23:12,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-22 23:23:12,406 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:12,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:12,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:12,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-22 23:23:12,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:12,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 51 states and 90 transitions. [2021-11-22 23:23:12,632 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 90 transitions. [2021-11-22 23:23:12,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-22 23:23:12,633 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:12,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:12,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-22 23:23:12,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:13,081 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 26 proven. 42 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-22 23:23:13,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 52 states and 92 transitions. [2021-11-22 23:23:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 92 transitions. [2021-11-22 23:23:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-22 23:23:13,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:13,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:13,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:23:13,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 28 proven. 46 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-22 23:23:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:14,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 53 states and 96 transitions. [2021-11-22 23:23:14,362 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 96 transitions. [2021-11-22 23:23:14,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-22 23:23:14,363 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:14,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:14,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:14,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 77 proven. 7 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2021-11-22 23:23:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:14,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 54 states and 97 transitions. [2021-11-22 23:23:14,682 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2021-11-22 23:23:14,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:23:14,684 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:14,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:14,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-22 23:23:14,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:15,000 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 30 proven. 60 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-22 23:23:15,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 57 states and 103 transitions. [2021-11-22 23:23:15,485 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 103 transitions. [2021-11-22 23:23:15,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-22 23:23:15,486 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:15,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:15,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:15,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 78 proven. 7 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-22 23:23:15,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:15,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 57 states and 102 transitions. [2021-11-22 23:23:15,742 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 102 transitions. [2021-11-22 23:23:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-22 23:23:15,743 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:15,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:15,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-22 23:23:15,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:16,301 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 32 proven. 65 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:23:16,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 58 states and 104 transitions. [2021-11-22 23:23:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 104 transitions. [2021-11-22 23:23:16,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 23:23:16,843 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:16,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:16,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-22 23:23:16,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 34 proven. 70 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:23:17,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 59 states and 108 transitions. [2021-11-22 23:23:17,830 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 108 transitions. [2021-11-22 23:23:17,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-22 23:23:17,831 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:17,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:17,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:17,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 95 proven. 7 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2021-11-22 23:23:18,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 60 states and 109 transitions. [2021-11-22 23:23:18,206 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 109 transitions. [2021-11-22 23:23:18,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-22 23:23:18,207 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:18,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:18,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:23:18,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 36 proven. 87 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-22 23:23:19,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:19,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 63 states and 115 transitions. [2021-11-22 23:23:19,078 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 115 transitions. [2021-11-22 23:23:19,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-22 23:23:19,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:19,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:19,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:19,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:19,294 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 95 proven. 7 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2021-11-22 23:23:19,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 63 states and 114 transitions. [2021-11-22 23:23:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 114 transitions. [2021-11-22 23:23:19,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-22 23:23:19,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:19,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:19,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-22 23:23:19,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:20,053 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 38 proven. 93 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-22 23:23:20,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:20,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 64 states and 116 transitions. [2021-11-22 23:23:20,562 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 116 transitions. [2021-11-22 23:23:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-22 23:23:20,563 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:20,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:20,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:23:20,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 40 proven. 99 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:23:21,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 65 states and 120 transitions. [2021-11-22 23:23:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 120 transitions. [2021-11-22 23:23:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-22 23:23:21,525 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:21,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:21,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:21,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:21,723 INFO L134 CoverageAnalysis]: Checked inductivity of 987 backedges. 113 proven. 7 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-11-22 23:23:21,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:21,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 66 states and 121 transitions. [2021-11-22 23:23:21,860 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 121 transitions. [2021-11-22 23:23:21,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-22 23:23:21,861 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:21,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:21,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-22 23:23:21,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:22,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 42 proven. 119 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:23:22,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:22,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 69 states and 127 transitions. [2021-11-22 23:23:22,799 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 127 transitions. [2021-11-22 23:23:22,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-22 23:23:22,800 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:22,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:22,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:22,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 112 proven. 7 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2021-11-22 23:23:23,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:23,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 69 states and 126 transitions. [2021-11-22 23:23:23,096 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 126 transitions. [2021-11-22 23:23:23,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-22 23:23:23,097 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:23,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:23,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-22 23:23:23,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 44 proven. 126 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:23:24,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:24,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 70 states and 128 transitions. [2021-11-22 23:23:24,432 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 128 transitions. [2021-11-22 23:23:24,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-22 23:23:24,433 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:24,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:24,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-22 23:23:24,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 46 proven. 133 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:23:25,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 71 states and 132 transitions. [2021-11-22 23:23:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 132 transitions. [2021-11-22 23:23:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-22 23:23:25,525 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:25,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:25,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:25,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 131 proven. 7 refuted. 0 times theorem prover too weak. 1154 trivial. 0 not checked. [2021-11-22 23:23:25,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 72 states and 133 transitions. [2021-11-22 23:23:25,878 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 133 transitions. [2021-11-22 23:23:25,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-22 23:23:25,878 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:25,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:25,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-22 23:23:25,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1308 backedges. 48 proven. 156 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-22 23:23:26,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:26,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 75 states and 139 transitions. [2021-11-22 23:23:26,819 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 139 transitions. [2021-11-22 23:23:26,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-22 23:23:26,820 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:26,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:26,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:26,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1390 backedges. 129 proven. 7 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2021-11-22 23:23:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 75 states and 138 transitions. [2021-11-22 23:23:27,140 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 138 transitions. [2021-11-22 23:23:27,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-22 23:23:27,141 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:27,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:27,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-22 23:23:27,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 50 proven. 164 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:23:28,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:28,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 76 states and 140 transitions. [2021-11-22 23:23:28,810 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 140 transitions. [2021-11-22 23:23:28,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-22 23:23:28,811 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:28,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:28,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-22 23:23:28,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1524 backedges. 52 proven. 172 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:23:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 77 states and 144 transitions. [2021-11-22 23:23:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 144 transitions. [2021-11-22 23:23:30,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-22 23:23:30,245 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:30,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:30,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:30,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 149 proven. 7 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2021-11-22 23:23:30,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 78 states and 145 transitions. [2021-11-22 23:23:30,677 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 145 transitions. [2021-11-22 23:23:30,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-22 23:23:30,678 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:30,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:30,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-22 23:23:30,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:31,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 54 proven. 198 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-22 23:23:31,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 81 states and 151 transitions. [2021-11-22 23:23:31,814 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 151 transitions. [2021-11-22 23:23:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-22 23:23:31,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:31,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:31,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:31,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1748 backedges. 146 proven. 7 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-22 23:23:32,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:32,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 81 states and 150 transitions. [2021-11-22 23:23:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 150 transitions. [2021-11-22 23:23:32,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-22 23:23:32,221 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:32,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:32,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-22 23:23:32,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 56 proven. 207 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-22 23:23:34,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 82 states and 152 transitions. [2021-11-22 23:23:34,068 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 152 transitions. [2021-11-22 23:23:34,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-22 23:23:34,069 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:34,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:34,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-22 23:23:34,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 58 proven. 216 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-22 23:23:35,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:35,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 83 states and 156 transitions. [2021-11-22 23:23:35,571 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 156 transitions. [2021-11-22 23:23:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-22 23:23:35,572 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:35,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:35,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:35,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 167 proven. 7 refuted. 0 times theorem prover too weak. 1851 trivial. 0 not checked. [2021-11-22 23:23:36,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 84 states and 157 transitions. [2021-11-22 23:23:36,120 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 157 transitions. [2021-11-22 23:23:36,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-22 23:23:36,121 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:36,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:36,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-22 23:23:36,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 60 proven. 245 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2021-11-22 23:23:37,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:37,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 87 states and 163 transitions. [2021-11-22 23:23:37,449 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 163 transitions. [2021-11-22 23:23:37,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-22 23:23:37,450 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:37,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:37,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:37,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:37,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2147 backedges. 163 proven. 7 refuted. 0 times theorem prover too weak. 1977 trivial. 0 not checked. [2021-11-22 23:23:37,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:37,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 87 states and 162 transitions. [2021-11-22 23:23:37,887 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 162 transitions. [2021-11-22 23:23:37,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-22 23:23:37,888 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:37,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:37,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 69 conjunts are in the unsatisfiable core [2021-11-22 23:23:37,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:39,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2177 backedges. 62 proven. 255 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-11-22 23:23:40,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:40,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 88 states and 164 transitions. [2021-11-22 23:23:40,009 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 164 transitions. [2021-11-22 23:23:40,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-22 23:23:40,010 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:40,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:40,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-22 23:23:40,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 64 proven. 265 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2021-11-22 23:23:41,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:41,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 89 states and 168 transitions. [2021-11-22 23:23:41,844 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 168 transitions. [2021-11-22 23:23:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-22 23:23:41,846 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:41,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:41,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:41,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2453 backedges. 185 proven. 7 refuted. 0 times theorem prover too weak. 2261 trivial. 0 not checked. [2021-11-22 23:23:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 90 states and 169 transitions. [2021-11-22 23:23:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 169 transitions. [2021-11-22 23:23:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-22 23:23:42,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:42,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:42,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-22 23:23:42,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2475 backedges. 66 proven. 297 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2021-11-22 23:23:43,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:43,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 93 states and 175 transitions. [2021-11-22 23:23:43,822 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 175 transitions. [2021-11-22 23:23:43,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-22 23:23:43,823 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:43,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:43,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:43,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2587 backedges. 180 proven. 7 refuted. 0 times theorem prover too weak. 2400 trivial. 0 not checked. [2021-11-22 23:23:44,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:44,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 93 states and 174 transitions. [2021-11-22 23:23:44,246 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 174 transitions. [2021-11-22 23:23:44,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-22 23:23:44,247 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:44,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:44,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-22 23:23:44,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2620 backedges. 68 proven. 308 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2021-11-22 23:23:46,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:46,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 94 states and 176 transitions. [2021-11-22 23:23:46,440 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 176 transitions. [2021-11-22 23:23:46,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-22 23:23:46,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:46,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:46,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-22 23:23:46,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2769 backedges. 70 proven. 319 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2021-11-22 23:23:48,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 95 states and 180 transitions. [2021-11-22 23:23:48,457 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 180 transitions. [2021-11-22 23:23:48,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-22 23:23:48,459 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:48,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:48,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:48,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:48,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2922 backedges. 203 proven. 7 refuted. 0 times theorem prover too weak. 2712 trivial. 0 not checked. [2021-11-22 23:23:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 96 states and 181 transitions. [2021-11-22 23:23:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 181 transitions. [2021-11-22 23:23:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-22 23:23:49,108 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:49,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:49,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-22 23:23:49,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2946 backedges. 72 proven. 354 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2021-11-22 23:23:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:50,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 99 states and 187 transitions. [2021-11-22 23:23:50,738 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 187 transitions. [2021-11-22 23:23:50,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-22 23:23:50,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:50,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:50,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:50,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 197 proven. 7 refuted. 0 times theorem prover too weak. 2864 trivial. 0 not checked. [2021-11-22 23:23:51,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:51,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 99 states and 186 transitions. [2021-11-22 23:23:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 186 transitions. [2021-11-22 23:23:51,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-22 23:23:51,178 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:51,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:51,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 81 conjunts are in the unsatisfiable core [2021-11-22 23:23:51,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 74 proven. 366 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2021-11-22 23:23:53,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 100 states and 188 transitions. [2021-11-22 23:23:53,679 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 188 transitions. [2021-11-22 23:23:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-22 23:23:53,680 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:53,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:53,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-22 23:23:53,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:54,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3266 backedges. 76 proven. 378 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2021-11-22 23:23:55,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:55,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 101 states and 192 transitions. [2021-11-22 23:23:55,886 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 192 transitions. [2021-11-22 23:23:55,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-22 23:23:55,887 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:55,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:55,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:55,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3432 backedges. 221 proven. 7 refuted. 0 times theorem prover too weak. 3204 trivial. 0 not checked. [2021-11-22 23:23:56,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:56,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 102 states and 193 transitions. [2021-11-22 23:23:56,511 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 193 transitions. [2021-11-22 23:23:56,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-22 23:23:56,512 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:56,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:56,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-22 23:23:56,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3458 backedges. 78 proven. 416 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2021-11-22 23:23:58,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:58,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 105 states and 199 transitions. [2021-11-22 23:23:58,342 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 199 transitions. [2021-11-22 23:23:58,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-22 23:23:58,343 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:58,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:58,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:23:58,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3590 backedges. 214 proven. 7 refuted. 0 times theorem prover too weak. 3369 trivial. 0 not checked. [2021-11-22 23:23:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 105 states and 198 transitions. [2021-11-22 23:23:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 198 transitions. [2021-11-22 23:23:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-22 23:23:58,747 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:58,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:58,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-22 23:23:58,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:00,518 INFO L134 CoverageAnalysis]: Checked inductivity of 3629 backedges. 80 proven. 429 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2021-11-22 23:24:01,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:01,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 106 states and 200 transitions. [2021-11-22 23:24:01,582 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 200 transitions. [2021-11-22 23:24:01,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-22 23:24:01,583 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:01,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:01,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-22 23:24:01,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3804 backedges. 82 proven. 442 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2021-11-22 23:24:04,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:04,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 107 states and 204 transitions. [2021-11-22 23:24:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 204 transitions. [2021-11-22 23:24:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-22 23:24:04,083 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:04,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:04,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:04,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3983 backedges. 239 proven. 7 refuted. 0 times theorem prover too weak. 3737 trivial. 0 not checked. [2021-11-22 23:24:04,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:04,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 108 states and 205 transitions. [2021-11-22 23:24:04,671 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 205 transitions. [2021-11-22 23:24:04,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-22 23:24:04,672 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:04,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:04,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-22 23:24:04,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4011 backedges. 84 proven. 483 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2021-11-22 23:24:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:06,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 111 states and 211 transitions. [2021-11-22 23:24:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 211 transitions. [2021-11-22 23:24:06,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-22 23:24:06,429 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:06,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:06,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:06,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4153 backedges. 231 proven. 7 refuted. 0 times theorem prover too weak. 3915 trivial. 0 not checked. [2021-11-22 23:24:06,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:06,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 111 states and 210 transitions. [2021-11-22 23:24:06,947 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 210 transitions. [2021-11-22 23:24:06,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-22 23:24:06,948 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:06,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:07,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-22 23:24:07,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:08,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4195 backedges. 86 proven. 497 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2021-11-22 23:24:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 112 states and 212 transitions. [2021-11-22 23:24:10,131 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 212 transitions. [2021-11-22 23:24:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-22 23:24:10,132 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:10,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:10,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-22 23:24:10,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4383 backedges. 88 proven. 511 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2021-11-22 23:24:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 113 states and 216 transitions. [2021-11-22 23:24:12,504 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 216 transitions. [2021-11-22 23:24:12,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-22 23:24:12,505 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:12,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:12,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:12,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:12,848 INFO L134 CoverageAnalysis]: Checked inductivity of 4575 backedges. 257 proven. 7 refuted. 0 times theorem prover too weak. 4311 trivial. 0 not checked. [2021-11-22 23:24:13,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:13,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 114 states and 217 transitions. [2021-11-22 23:24:13,150 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 217 transitions. [2021-11-22 23:24:13,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-22 23:24:13,151 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:13,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:13,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-22 23:24:13,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4605 backedges. 90 proven. 555 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2021-11-22 23:24:15,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:15,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 117 states and 223 transitions. [2021-11-22 23:24:15,117 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 223 transitions. [2021-11-22 23:24:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-22 23:24:15,118 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:15,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:15,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:15,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4757 backedges. 248 proven. 7 refuted. 0 times theorem prover too weak. 4502 trivial. 0 not checked. [2021-11-22 23:24:15,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:15,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 117 states and 222 transitions. [2021-11-22 23:24:15,678 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 222 transitions. [2021-11-22 23:24:15,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-22 23:24:15,679 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:15,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:15,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-22 23:24:15,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4802 backedges. 92 proven. 570 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2021-11-22 23:24:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:19,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 118 states and 224 transitions. [2021-11-22 23:24:19,064 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 224 transitions. [2021-11-22 23:24:19,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-22 23:24:19,065 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:19,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:19,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-22 23:24:19,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:21,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5003 backedges. 94 proven. 585 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2021-11-22 23:24:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 119 states and 228 transitions. [2021-11-22 23:24:22,654 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 228 transitions. [2021-11-22 23:24:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-22 23:24:22,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:22,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:22,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:22,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5208 backedges. 275 proven. 7 refuted. 0 times theorem prover too weak. 4926 trivial. 0 not checked. [2021-11-22 23:24:23,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:23,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 120 states and 229 transitions. [2021-11-22 23:24:23,328 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 229 transitions. [2021-11-22 23:24:23,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-22 23:24:23,329 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:23,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:23,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-22 23:24:23,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:24,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5240 backedges. 96 proven. 632 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2021-11-22 23:24:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 123 states and 235 transitions. [2021-11-22 23:24:25,403 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 235 transitions. [2021-11-22 23:24:25,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-11-22 23:24:25,404 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:25,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:25,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:25,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5402 backedges. 265 proven. 7 refuted. 0 times theorem prover too weak. 5130 trivial. 0 not checked. [2021-11-22 23:24:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 123 states and 234 transitions. [2021-11-22 23:24:25,895 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 234 transitions. [2021-11-22 23:24:25,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-22 23:24:25,896 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:25,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:25,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 105 conjunts are in the unsatisfiable core [2021-11-22 23:24:25,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 5450 backedges. 98 proven. 648 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2021-11-22 23:24:29,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:29,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 124 states and 236 transitions. [2021-11-22 23:24:29,548 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 236 transitions. [2021-11-22 23:24:29,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-22 23:24:29,549 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:29,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:29,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 105 conjunts are in the unsatisfiable core [2021-11-22 23:24:29,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 5664 backedges. 100 proven. 664 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2021-11-22 23:24:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:33,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 125 states and 240 transitions. [2021-11-22 23:24:33,628 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 240 transitions. [2021-11-22 23:24:33,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-11-22 23:24:33,629 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:33,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:33,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:33,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 5882 backedges. 293 proven. 7 refuted. 0 times theorem prover too weak. 5582 trivial. 0 not checked. [2021-11-22 23:24:34,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 126 states and 241 transitions. [2021-11-22 23:24:34,348 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 241 transitions. [2021-11-22 23:24:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-22 23:24:34,350 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:34,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:34,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-22 23:24:34,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5916 backedges. 102 proven. 714 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2021-11-22 23:24:36,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:36,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 129 states and 247 transitions. [2021-11-22 23:24:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 247 transitions. [2021-11-22 23:24:36,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-11-22 23:24:36,665 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:36,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:36,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:36,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:37,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6088 backedges. 282 proven. 7 refuted. 0 times theorem prover too weak. 5799 trivial. 0 not checked. [2021-11-22 23:24:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 129 states and 246 transitions. [2021-11-22 23:24:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 246 transitions. [2021-11-22 23:24:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-22 23:24:37,265 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:37,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:37,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 111 conjunts are in the unsatisfiable core [2021-11-22 23:24:37,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6139 backedges. 104 proven. 731 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2021-11-22 23:24:41,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 130 states and 248 transitions. [2021-11-22 23:24:41,315 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 248 transitions. [2021-11-22 23:24:41,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-22 23:24:41,316 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:41,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:41,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 111 conjunts are in the unsatisfiable core [2021-11-22 23:24:41,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:43,869 INFO L134 CoverageAnalysis]: Checked inductivity of 6366 backedges. 106 proven. 748 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2021-11-22 23:24:45,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:45,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 131 states and 252 transitions. [2021-11-22 23:24:45,626 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 252 transitions. [2021-11-22 23:24:45,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-11-22 23:24:45,628 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:45,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:45,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:45,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:46,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6597 backedges. 311 proven. 7 refuted. 0 times theorem prover too weak. 6279 trivial. 0 not checked. [2021-11-22 23:24:46,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:46,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 132 states and 253 transitions. [2021-11-22 23:24:46,374 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 253 transitions. [2021-11-22 23:24:46,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-11-22 23:24:46,375 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:46,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:46,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 79 conjunts are in the unsatisfiable core [2021-11-22 23:24:46,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:47,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6633 backedges. 108 proven. 801 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2021-11-22 23:24:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:48,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 135 states and 259 transitions. [2021-11-22 23:24:48,777 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 259 transitions. [2021-11-22 23:24:48,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-11-22 23:24:48,779 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:48,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:48,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:48,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:49,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6815 backedges. 299 proven. 7 refuted. 0 times theorem prover too weak. 6509 trivial. 0 not checked. [2021-11-22 23:24:49,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:49,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 135 states and 258 transitions. [2021-11-22 23:24:49,340 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 258 transitions. [2021-11-22 23:24:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-22 23:24:49,342 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:49,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:49,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 117 conjunts are in the unsatisfiable core [2021-11-22 23:24:49,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:52,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6869 backedges. 110 proven. 819 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2021-11-22 23:24:53,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 136 states and 260 transitions. [2021-11-22 23:24:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 260 transitions. [2021-11-22 23:24:53,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-11-22 23:24:53,734 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:53,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:53,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 117 conjunts are in the unsatisfiable core [2021-11-22 23:24:53,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 7109 backedges. 112 proven. 837 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2021-11-22 23:24:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:58,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 137 states and 264 transitions. [2021-11-22 23:24:58,501 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 264 transitions. [2021-11-22 23:24:58,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-22 23:24:58,503 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:58,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:58,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:24:58,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:58,940 INFO L134 CoverageAnalysis]: Checked inductivity of 7353 backedges. 329 proven. 7 refuted. 0 times theorem prover too weak. 7017 trivial. 0 not checked. [2021-11-22 23:24:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 138 states and 265 transitions. [2021-11-22 23:24:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 265 transitions. [2021-11-22 23:24:59,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-22 23:24:59,304 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:59,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:59,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 83 conjunts are in the unsatisfiable core [2021-11-22 23:24:59,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:00,193 INFO L134 CoverageAnalysis]: Checked inductivity of 7391 backedges. 114 proven. 893 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2021-11-22 23:25:01,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:01,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 141 states and 271 transitions. [2021-11-22 23:25:01,923 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 271 transitions. [2021-11-22 23:25:01,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-11-22 23:25:01,925 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:01,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:02,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:25:02,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:02,380 INFO L134 CoverageAnalysis]: Checked inductivity of 7583 backedges. 316 proven. 7 refuted. 0 times theorem prover too weak. 7260 trivial. 0 not checked. [2021-11-22 23:25:02,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:02,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 141 states and 270 transitions. [2021-11-22 23:25:02,530 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 270 transitions. [2021-11-22 23:25:02,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-11-22 23:25:02,531 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:02,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:02,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 123 conjunts are in the unsatisfiable core [2021-11-22 23:25:02,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 7640 backedges. 116 proven. 912 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2021-11-22 23:25:07,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:07,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 142 states and 272 transitions. [2021-11-22 23:25:07,445 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 272 transitions. [2021-11-22 23:25:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-22 23:25:07,447 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:07,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:07,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 123 conjunts are in the unsatisfiable core [2021-11-22 23:25:07,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 7893 backedges. 118 proven. 931 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2021-11-22 23:25:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 143 states and 276 transitions. [2021-11-22 23:25:12,617 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 276 transitions. [2021-11-22 23:25:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-11-22 23:25:12,619 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:12,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:12,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:25:12,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 8150 backedges. 347 proven. 7 refuted. 0 times theorem prover too weak. 7796 trivial. 0 not checked. [2021-11-22 23:25:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 144 states and 277 transitions. [2021-11-22 23:25:13,428 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 277 transitions. [2021-11-22 23:25:13,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-22 23:25:13,430 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:13,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:13,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-22 23:25:13,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:14,344 INFO L134 CoverageAnalysis]: Checked inductivity of 8190 backedges. 120 proven. 990 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2021-11-22 23:25:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:16,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 147 states and 283 transitions. [2021-11-22 23:25:16,239 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 283 transitions. [2021-11-22 23:25:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-11-22 23:25:16,241 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:16,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:25:16,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:16,696 INFO L134 CoverageAnalysis]: Checked inductivity of 8392 backedges. 333 proven. 7 refuted. 0 times theorem prover too weak. 8052 trivial. 0 not checked. [2021-11-22 23:25:16,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:16,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 147 states and 282 transitions. [2021-11-22 23:25:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 282 transitions. [2021-11-22 23:25:16,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-11-22 23:25:16,862 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:16,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 129 conjunts are in the unsatisfiable core [2021-11-22 23:25:16,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:20,219 INFO L134 CoverageAnalysis]: Checked inductivity of 8452 backedges. 122 proven. 1010 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2021-11-22 23:25:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:22,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 148 states and 284 transitions. [2021-11-22 23:25:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 284 transitions. [2021-11-22 23:25:22,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-11-22 23:25:22,132 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:22,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:22,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 129 conjunts are in the unsatisfiable core [2021-11-22 23:25:22,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 8718 backedges. 124 proven. 1030 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2021-11-22 23:25:27,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 149 states and 288 transitions. [2021-11-22 23:25:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 288 transitions. [2021-11-22 23:25:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-11-22 23:25:27,767 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:27,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:27,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:25:27,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 8988 backedges. 365 proven. 7 refuted. 0 times theorem prover too weak. 8616 trivial. 0 not checked. [2021-11-22 23:25:28,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 150 states and 289 transitions. [2021-11-22 23:25:28,634 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 289 transitions. [2021-11-22 23:25:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-11-22 23:25:28,636 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:28,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:28,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-22 23:25:28,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:29,625 INFO L134 CoverageAnalysis]: Checked inductivity of 9030 backedges. 126 proven. 1092 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2021-11-22 23:25:31,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 153 states and 295 transitions. [2021-11-22 23:25:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 295 transitions. [2021-11-22 23:25:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-22 23:25:31,591 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:31,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:31,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:25:31,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:32,074 INFO L134 CoverageAnalysis]: Checked inductivity of 9242 backedges. 350 proven. 7 refuted. 0 times theorem prover too weak. 8885 trivial. 0 not checked. [2021-11-22 23:25:32,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 153 states and 294 transitions. [2021-11-22 23:25:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 294 transitions. [2021-11-22 23:25:32,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-11-22 23:25:32,241 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:32,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:32,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 135 conjunts are in the unsatisfiable core [2021-11-22 23:25:32,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 9305 backedges. 128 proven. 1113 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2021-11-22 23:25:37,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:37,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 154 states and 296 transitions. [2021-11-22 23:25:37,864 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 296 transitions. [2021-11-22 23:25:37,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-11-22 23:25:37,865 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:37,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:38,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-22 23:25:38,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:40,263 INFO L134 CoverageAnalysis]: Checked inductivity of 9584 backedges. 130 proven. 1134 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2021-11-22 23:25:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:42,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 155 states and 300 transitions. [2021-11-22 23:25:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 300 transitions. [2021-11-22 23:25:42,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-11-22 23:25:42,887 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:42,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:42,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:25:42,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:43,413 INFO L134 CoverageAnalysis]: Checked inductivity of 9867 backedges. 383 proven. 7 refuted. 0 times theorem prover too weak. 9477 trivial. 0 not checked. [2021-11-22 23:25:43,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 156 states and 301 transitions. [2021-11-22 23:25:43,817 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 301 transitions. [2021-11-22 23:25:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-11-22 23:25:43,818 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:43,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:43,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-22 23:25:43,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:44,796 INFO L134 CoverageAnalysis]: Checked inductivity of 9911 backedges. 132 proven. 1199 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2021-11-22 23:25:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 159 states and 307 transitions. [2021-11-22 23:25:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 307 transitions. [2021-11-22 23:25:46,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-22 23:25:46,941 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:46,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:47,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:25:47,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 10133 backedges. 367 proven. 7 refuted. 0 times theorem prover too weak. 9759 trivial. 0 not checked. [2021-11-22 23:25:47,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:47,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 159 states and 306 transitions. [2021-11-22 23:25:47,612 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 306 transitions. [2021-11-22 23:25:47,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-11-22 23:25:47,614 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:47,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:47,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 141 conjunts are in the unsatisfiable core [2021-11-22 23:25:47,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:51,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10199 backedges. 134 proven. 1221 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2021-11-22 23:25:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:53,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 160 states and 308 transitions. [2021-11-22 23:25:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 308 transitions. [2021-11-22 23:25:53,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-11-22 23:25:53,712 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:53,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:53,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-22 23:25:53,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:56,157 INFO L134 CoverageAnalysis]: Checked inductivity of 10491 backedges. 136 proven. 1243 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2021-11-22 23:25:59,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:59,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 161 states and 312 transitions. [2021-11-22 23:25:59,282 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 312 transitions. [2021-11-22 23:25:59,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2021-11-22 23:25:59,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:59,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:59,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:25:59,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 10787 backedges. 401 proven. 7 refuted. 0 times theorem prover too weak. 10379 trivial. 0 not checked. [2021-11-22 23:26:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 162 states and 313 transitions. [2021-11-22 23:26:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 313 transitions. [2021-11-22 23:26:00,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2021-11-22 23:26:00,743 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:00,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:00,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-22 23:26:00,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 10833 backedges. 138 proven. 1311 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2021-11-22 23:26:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:04,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 165 states and 319 transitions. [2021-11-22 23:26:04,135 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 319 transitions. [2021-11-22 23:26:04,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-11-22 23:26:04,137 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:04,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:04,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:26:04,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 11065 backedges. 384 proven. 7 refuted. 0 times theorem prover too weak. 10674 trivial. 0 not checked. [2021-11-22 23:26:04,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 165 states and 318 transitions. [2021-11-22 23:26:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 318 transitions. [2021-11-22 23:26:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-22 23:26:04,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:04,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:04,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 147 conjunts are in the unsatisfiable core [2021-11-22 23:26:04,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 11134 backedges. 140 proven. 1334 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2021-11-22 23:26:11,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:11,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 166 states and 320 transitions. [2021-11-22 23:26:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 320 transitions. [2021-11-22 23:26:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-11-22 23:26:11,579 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:11,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:11,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 147 conjunts are in the unsatisfiable core [2021-11-22 23:26:11,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:15,881 INFO L134 CoverageAnalysis]: Checked inductivity of 11439 backedges. 142 proven. 1357 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2021-11-22 23:26:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:18,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 167 states and 324 transitions. [2021-11-22 23:26:18,848 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 324 transitions. [2021-11-22 23:26:18,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-11-22 23:26:18,850 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:18,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:18,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:26:18,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 11748 backedges. 419 proven. 7 refuted. 0 times theorem prover too weak. 11322 trivial. 0 not checked. [2021-11-22 23:26:19,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:19,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 168 states and 325 transitions. [2021-11-22 23:26:19,846 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 325 transitions. [2021-11-22 23:26:19,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-22 23:26:19,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:19,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:19,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 103 conjunts are in the unsatisfiable core [2021-11-22 23:26:19,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 11796 backedges. 144 proven. 1428 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2021-11-22 23:26:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 171 states and 331 transitions. [2021-11-22 23:26:23,576 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 331 transitions. [2021-11-22 23:26:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-22 23:26:23,577 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:23,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:23,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:26:23,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:24,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12038 backedges. 401 proven. 7 refuted. 0 times theorem prover too weak. 11630 trivial. 0 not checked. [2021-11-22 23:26:24,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:24,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 171 states and 330 transitions. [2021-11-22 23:26:24,313 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 330 transitions. [2021-11-22 23:26:24,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-11-22 23:26:24,315 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:24,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:24,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 153 conjunts are in the unsatisfiable core [2021-11-22 23:26:24,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 12110 backedges. 146 proven. 1452 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2021-11-22 23:26:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 172 states and 332 transitions. [2021-11-22 23:26:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 332 transitions. [2021-11-22 23:26:31,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-22 23:26:31,503 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:31,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:31,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 153 conjunts are in the unsatisfiable core [2021-11-22 23:26:31,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 12428 backedges. 148 proven. 1476 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2021-11-22 23:26:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:39,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 173 states and 336 transitions. [2021-11-22 23:26:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 336 transitions. [2021-11-22 23:26:39,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-22 23:26:39,444 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:39,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:39,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:26:39,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12750 backedges. 437 proven. 7 refuted. 0 times theorem prover too weak. 12306 trivial. 0 not checked. [2021-11-22 23:26:40,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 174 states and 337 transitions. [2021-11-22 23:26:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 337 transitions. [2021-11-22 23:26:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2021-11-22 23:26:40,525 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:40,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:40,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 107 conjunts are in the unsatisfiable core [2021-11-22 23:26:40,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:41,651 INFO L134 CoverageAnalysis]: Checked inductivity of 12800 backedges. 150 proven. 1550 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2021-11-22 23:26:44,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:44,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 177 states and 343 transitions. [2021-11-22 23:26:44,367 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 343 transitions. [2021-11-22 23:26:44,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2021-11-22 23:26:44,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:44,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:44,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:26:44,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:44,936 INFO L134 CoverageAnalysis]: Checked inductivity of 13052 backedges. 418 proven. 7 refuted. 0 times theorem prover too weak. 12627 trivial. 0 not checked. [2021-11-22 23:26:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:45,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 177 states and 342 transitions. [2021-11-22 23:26:45,138 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 342 transitions. [2021-11-22 23:26:45,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2021-11-22 23:26:45,141 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:45,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:45,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 159 conjunts are in the unsatisfiable core [2021-11-22 23:26:45,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 13127 backedges. 152 proven. 1575 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2021-11-22 23:26:52,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:52,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 178 states and 344 transitions. [2021-11-22 23:26:52,966 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 344 transitions. [2021-11-22 23:26:52,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2021-11-22 23:26:52,967 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:52,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:53,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 159 conjunts are in the unsatisfiable core [2021-11-22 23:26:53,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 13458 backedges. 154 proven. 1600 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2021-11-22 23:27:01,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:01,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 179 states and 348 transitions. [2021-11-22 23:27:01,410 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 348 transitions. [2021-11-22 23:27:01,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-22 23:27:01,411 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:01,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:01,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:27:01,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 13793 backedges. 455 proven. 7 refuted. 0 times theorem prover too weak. 13331 trivial. 0 not checked. [2021-11-22 23:27:02,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:02,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 180 states and 349 transitions. [2021-11-22 23:27:02,650 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 349 transitions. [2021-11-22 23:27:02,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-11-22 23:27:02,653 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:02,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:02,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 111 conjunts are in the unsatisfiable core [2021-11-22 23:27:02,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:03,864 INFO L134 CoverageAnalysis]: Checked inductivity of 13845 backedges. 156 proven. 1677 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2021-11-22 23:27:06,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 183 states and 355 transitions. [2021-11-22 23:27:06,795 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 355 transitions. [2021-11-22 23:27:06,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2021-11-22 23:27:06,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:06,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:06,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:27:06,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 14107 backedges. 435 proven. 7 refuted. 0 times theorem prover too weak. 13665 trivial. 0 not checked. [2021-11-22 23:27:07,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:07,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 183 states and 354 transitions. [2021-11-22 23:27:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 354 transitions. [2021-11-22 23:27:07,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2021-11-22 23:27:07,665 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:07,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:07,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 165 conjunts are in the unsatisfiable core [2021-11-22 23:27:07,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 14185 backedges. 158 proven. 1703 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2021-11-22 23:27:15,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 184 states and 356 transitions. [2021-11-22 23:27:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 356 transitions. [2021-11-22 23:27:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2021-11-22 23:27:15,836 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:15,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:15,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 165 conjunts are in the unsatisfiable core [2021-11-22 23:27:15,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 14529 backedges. 160 proven. 1729 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2021-11-22 23:27:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 185 states and 360 transitions. [2021-11-22 23:27:25,108 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 360 transitions. [2021-11-22 23:27:25,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2021-11-22 23:27:25,110 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:25,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:25,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:27:25,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 14877 backedges. 473 proven. 7 refuted. 0 times theorem prover too weak. 14397 trivial. 0 not checked. [2021-11-22 23:27:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 186 states and 361 transitions. [2021-11-22 23:27:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 361 transitions. [2021-11-22 23:27:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2021-11-22 23:27:26,352 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:26,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:26,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 115 conjunts are in the unsatisfiable core [2021-11-22 23:27:26,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 14931 backedges. 162 proven. 1809 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2021-11-22 23:27:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 189 states and 367 transitions. [2021-11-22 23:27:30,760 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 367 transitions. [2021-11-22 23:27:30,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2021-11-22 23:27:30,762 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:30,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:30,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:27:30,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 15203 backedges. 452 proven. 7 refuted. 0 times theorem prover too weak. 14744 trivial. 0 not checked. [2021-11-22 23:27:31,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 189 states and 366 transitions. [2021-11-22 23:27:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 366 transitions. [2021-11-22 23:27:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-11-22 23:27:31,592 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:31,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:31,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 171 conjunts are in the unsatisfiable core [2021-11-22 23:27:31,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:37,408 INFO L134 CoverageAnalysis]: Checked inductivity of 15284 backedges. 164 proven. 1836 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2021-11-22 23:27:40,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:40,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 190 states and 368 transitions. [2021-11-22 23:27:40,393 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 368 transitions. [2021-11-22 23:27:40,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-22 23:27:40,395 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:40,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:40,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 115 conjunts are in the unsatisfiable core [2021-11-22 23:27:40,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 15641 backedges. 166 proven. 1863 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2021-11-22 23:27:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 191 states and 372 transitions. [2021-11-22 23:27:50,673 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 372 transitions. [2021-11-22 23:27:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-11-22 23:27:50,675 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:50,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:50,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:27:50,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:51,311 INFO L134 CoverageAnalysis]: Checked inductivity of 16002 backedges. 491 proven. 7 refuted. 0 times theorem prover too weak. 15504 trivial. 0 not checked. [2021-11-22 23:27:51,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:51,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 192 states and 373 transitions. [2021-11-22 23:27:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 373 transitions. [2021-11-22 23:27:51,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2021-11-22 23:27:51,894 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:51,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:52,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 119 conjunts are in the unsatisfiable core [2021-11-22 23:27:52,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:53,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16058 backedges. 168 proven. 1946 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2021-11-22 23:27:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 195 states and 379 transitions. [2021-11-22 23:27:56,475 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 379 transitions. [2021-11-22 23:27:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2021-11-22 23:27:56,477 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:56,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:56,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:27:56,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 16340 backedges. 469 proven. 7 refuted. 0 times theorem prover too weak. 15864 trivial. 0 not checked. [2021-11-22 23:27:57,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:57,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 195 states and 378 transitions. [2021-11-22 23:27:57,339 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 378 transitions. [2021-11-22 23:27:57,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-11-22 23:27:57,341 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:57,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:57,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 177 conjunts are in the unsatisfiable core [2021-11-22 23:27:57,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:03,601 INFO L134 CoverageAnalysis]: Checked inductivity of 16424 backedges. 170 proven. 1974 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2021-11-22 23:28:06,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:06,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 196 states and 380 transitions. [2021-11-22 23:28:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 380 transitions. [2021-11-22 23:28:06,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2021-11-22 23:28:06,824 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:06,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:06,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 119 conjunts are in the unsatisfiable core [2021-11-22 23:28:06,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 16794 backedges. 172 proven. 2002 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2021-11-22 23:28:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 197 states and 384 transitions. [2021-11-22 23:28:15,937 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 384 transitions. [2021-11-22 23:28:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2021-11-22 23:28:15,939 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:15,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:16,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:28:16,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 17168 backedges. 509 proven. 7 refuted. 0 times theorem prover too weak. 16652 trivial. 0 not checked. [2021-11-22 23:28:17,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:17,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 198 states and 385 transitions. [2021-11-22 23:28:17,181 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 385 transitions. [2021-11-22 23:28:17,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2021-11-22 23:28:17,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:17,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:17,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 123 conjunts are in the unsatisfiable core [2021-11-22 23:28:17,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:18,541 INFO L134 CoverageAnalysis]: Checked inductivity of 17226 backedges. 174 proven. 2088 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2021-11-22 23:28:21,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:21,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 201 states and 391 transitions. [2021-11-22 23:28:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 391 transitions. [2021-11-22 23:28:21,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-11-22 23:28:21,927 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:21,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:22,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:28:22,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 17518 backedges. 486 proven. 7 refuted. 0 times theorem prover too weak. 17025 trivial. 0 not checked. [2021-11-22 23:28:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:22,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 201 states and 390 transitions. [2021-11-22 23:28:22,819 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 390 transitions. [2021-11-22 23:28:22,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2021-11-22 23:28:22,821 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:22,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:22,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 183 conjunts are in the unsatisfiable core [2021-11-22 23:28:22,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 17605 backedges. 176 proven. 2117 refuted. 0 times theorem prover too weak. 15312 trivial. 0 not checked. [2021-11-22 23:28:32,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 202 states and 392 transitions. [2021-11-22 23:28:32,562 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 392 transitions. [2021-11-22 23:28:32,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2021-11-22 23:28:32,564 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:32,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:32,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 123 conjunts are in the unsatisfiable core [2021-11-22 23:28:32,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:38,972 INFO L134 CoverageAnalysis]: Checked inductivity of 17988 backedges. 178 proven. 2146 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2021-11-22 23:28:43,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 203 states and 396 transitions. [2021-11-22 23:28:43,374 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 396 transitions. [2021-11-22 23:28:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2021-11-22 23:28:43,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:43,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:43,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:28:43,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 18375 backedges. 527 proven. 7 refuted. 0 times theorem prover too weak. 17841 trivial. 0 not checked. [2021-11-22 23:28:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:44,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 204 states and 397 transitions. [2021-11-22 23:28:44,651 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 397 transitions. [2021-11-22 23:28:44,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2021-11-22 23:28:44,654 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:44,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:44,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 127 conjunts are in the unsatisfiable core [2021-11-22 23:28:44,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 18435 backedges. 180 proven. 2235 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2021-11-22 23:28:49,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:49,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 207 states and 403 transitions. [2021-11-22 23:28:49,588 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 403 transitions. [2021-11-22 23:28:49,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2021-11-22 23:28:49,591 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:49,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:49,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:28:49,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 18737 backedges. 503 proven. 7 refuted. 0 times theorem prover too weak. 18227 trivial. 0 not checked. [2021-11-22 23:28:50,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 207 states and 402 transitions. [2021-11-22 23:28:50,530 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 402 transitions. [2021-11-22 23:28:50,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2021-11-22 23:28:50,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:50,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:50,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 189 conjunts are in the unsatisfiable core [2021-11-22 23:28:50,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:57,509 INFO L134 CoverageAnalysis]: Checked inductivity of 18827 backedges. 182 proven. 2265 refuted. 0 times theorem prover too weak. 16380 trivial. 0 not checked. [2021-11-22 23:29:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 208 states and 404 transitions. [2021-11-22 23:29:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 404 transitions. [2021-11-22 23:29:00,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2021-11-22 23:29:00,984 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:00,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:01,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 189 conjunts are in the unsatisfiable core [2021-11-22 23:29:01,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:08,004 INFO L134 CoverageAnalysis]: Checked inductivity of 19223 backedges. 184 proven. 2295 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2021-11-22 23:29:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 209 states and 408 transitions. [2021-11-22 23:29:12,868 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 408 transitions. [2021-11-22 23:29:12,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2021-11-22 23:29:12,870 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:12,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:13,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:29:13,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:13,580 INFO L134 CoverageAnalysis]: Checked inductivity of 19623 backedges. 545 proven. 7 refuted. 0 times theorem prover too weak. 19071 trivial. 0 not checked. [2021-11-22 23:29:14,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 210 states and 409 transitions. [2021-11-22 23:29:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 409 transitions. [2021-11-22 23:29:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-11-22 23:29:14,205 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:14,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:14,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 131 conjunts are in the unsatisfiable core [2021-11-22 23:29:14,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:15,640 INFO L134 CoverageAnalysis]: Checked inductivity of 19685 backedges. 186 proven. 2387 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2021-11-22 23:29:19,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 213 states and 415 transitions. [2021-11-22 23:29:19,337 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 415 transitions. [2021-11-22 23:29:19,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-11-22 23:29:19,339 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:19,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:19,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:29:19,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:20,046 INFO L134 CoverageAnalysis]: Checked inductivity of 19997 backedges. 520 proven. 7 refuted. 0 times theorem prover too weak. 19470 trivial. 0 not checked. [2021-11-22 23:29:20,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:20,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 213 states and 414 transitions. [2021-11-22 23:29:20,302 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 414 transitions. [2021-11-22 23:29:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2021-11-22 23:29:20,304 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:20,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:20,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 195 conjunts are in the unsatisfiable core [2021-11-22 23:29:20,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:27,674 INFO L134 CoverageAnalysis]: Checked inductivity of 20090 backedges. 188 proven. 2418 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2021-11-22 23:29:31,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:31,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 214 states and 416 transitions. [2021-11-22 23:29:31,321 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 416 transitions. [2021-11-22 23:29:31,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2021-11-22 23:29:31,323 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:31,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:31,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 131 conjunts are in the unsatisfiable core [2021-11-22 23:29:31,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 20499 backedges. 190 proven. 2449 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2021-11-22 23:29:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:42,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 215 states and 420 transitions. [2021-11-22 23:29:42,174 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 420 transitions. [2021-11-22 23:29:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2021-11-22 23:29:42,177 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:42,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:42,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:29:42,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 20912 backedges. 563 proven. 7 refuted. 0 times theorem prover too weak. 20342 trivial. 0 not checked. [2021-11-22 23:29:43,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:43,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 216 states and 421 transitions. [2021-11-22 23:29:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 421 transitions. [2021-11-22 23:29:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2021-11-22 23:29:43,527 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:43,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:43,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 135 conjunts are in the unsatisfiable core [2021-11-22 23:29:43,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 20976 backedges. 192 proven. 2544 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2021-11-22 23:29:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:48,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 219 states and 427 transitions. [2021-11-22 23:29:48,920 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 427 transitions. [2021-11-22 23:29:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2021-11-22 23:29:48,924 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:48,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:49,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:29:49,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 21298 backedges. 537 proven. 7 refuted. 0 times theorem prover too weak. 20754 trivial. 0 not checked. [2021-11-22 23:29:50,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:50,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 219 states and 426 transitions. [2021-11-22 23:29:50,008 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 426 transitions. [2021-11-22 23:29:50,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2021-11-22 23:29:50,011 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:50,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:50,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 201 conjunts are in the unsatisfiable core [2021-11-22 23:29:50,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:57,745 INFO L134 CoverageAnalysis]: Checked inductivity of 21394 backedges. 194 proven. 2576 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2021-11-22 23:30:01,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 220 states and 428 transitions. [2021-11-22 23:30:01,572 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 428 transitions. [2021-11-22 23:30:01,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2021-11-22 23:30:01,574 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:01,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:01,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 201 conjunts are in the unsatisfiable core [2021-11-22 23:30:01,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:09,720 INFO L134 CoverageAnalysis]: Checked inductivity of 21816 backedges. 196 proven. 2608 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2021-11-22 23:30:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 221 states and 432 transitions. [2021-11-22 23:30:14,907 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 432 transitions. [2021-11-22 23:30:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2021-11-22 23:30:14,909 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:14,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:15,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:30:15,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 22242 backedges. 581 proven. 7 refuted. 0 times theorem prover too weak. 21654 trivial. 0 not checked. [2021-11-22 23:30:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 222 states and 433 transitions. [2021-11-22 23:30:16,347 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 433 transitions. [2021-11-22 23:30:16,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2021-11-22 23:30:16,349 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:16,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:16,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 139 conjunts are in the unsatisfiable core [2021-11-22 23:30:16,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 22308 backedges. 198 proven. 2706 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2021-11-22 23:30:22,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:22,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 225 states and 439 transitions. [2021-11-22 23:30:22,045 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 439 transitions. [2021-11-22 23:30:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2021-11-22 23:30:22,048 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:22,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:22,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:30:22,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 22640 backedges. 554 proven. 7 refuted. 0 times theorem prover too weak. 22079 trivial. 0 not checked. [2021-11-22 23:30:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:23,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 225 states and 438 transitions. [2021-11-22 23:30:23,125 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 438 transitions. [2021-11-22 23:30:23,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2021-11-22 23:30:23,129 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:23,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:23,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 207 conjunts are in the unsatisfiable core [2021-11-22 23:30:23,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 22739 backedges. 200 proven. 2739 refuted. 0 times theorem prover too weak. 19800 trivial. 0 not checked. [2021-11-22 23:30:35,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:35,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 226 states and 440 transitions. [2021-11-22 23:30:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 440 transitions. [2021-11-22 23:30:35,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2021-11-22 23:30:35,911 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:35,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:36,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 207 conjunts are in the unsatisfiable core [2021-11-22 23:30:36,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 23174 backedges. 202 proven. 2772 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2021-11-22 23:30:49,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:49,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 227 states and 444 transitions. [2021-11-22 23:30:49,755 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 444 transitions. [2021-11-22 23:30:49,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2021-11-22 23:30:49,758 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:49,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:49,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:30:49,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:50,521 INFO L134 CoverageAnalysis]: Checked inductivity of 23613 backedges. 599 proven. 7 refuted. 0 times theorem prover too weak. 23007 trivial. 0 not checked. [2021-11-22 23:30:51,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 228 states and 445 transitions. [2021-11-22 23:30:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 445 transitions. [2021-11-22 23:30:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2021-11-22 23:30:51,218 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:51,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:51,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 143 conjunts are in the unsatisfiable core [2021-11-22 23:30:51,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:52,822 INFO L134 CoverageAnalysis]: Checked inductivity of 23681 backedges. 204 proven. 2873 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2021-11-22 23:30:57,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 231 states and 451 transitions. [2021-11-22 23:30:57,152 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 451 transitions. [2021-11-22 23:30:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2021-11-22 23:30:57,155 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:57,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:57,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 1235 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:30:57,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 24023 backedges. 571 proven. 7 refuted. 0 times theorem prover too weak. 23445 trivial. 0 not checked. [2021-11-22 23:30:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:58,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 231 states and 450 transitions. [2021-11-22 23:30:58,199 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 450 transitions. [2021-11-22 23:30:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2021-11-22 23:30:58,202 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:58,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:58,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 213 conjunts are in the unsatisfiable core [2021-11-22 23:30:58,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:07,159 INFO L134 CoverageAnalysis]: Checked inductivity of 24125 backedges. 206 proven. 2907 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2021-11-22 23:31:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:31:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 232 states and 452 transitions. [2021-11-22 23:31:11,277 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 452 transitions. [2021-11-22 23:31:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2021-11-22 23:31:11,279 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:31:11,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:11,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 213 conjunts are in the unsatisfiable core [2021-11-22 23:31:11,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 24573 backedges. 208 proven. 2941 refuted. 0 times theorem prover too weak. 21424 trivial. 0 not checked. [2021-11-22 23:31:25,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:31:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 233 states and 456 transitions. [2021-11-22 23:31:25,972 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 456 transitions. [2021-11-22 23:31:25,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2021-11-22 23:31:25,975 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:31:25,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:26,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:31:26,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 25025 backedges. 617 proven. 7 refuted. 0 times theorem prover too weak. 24401 trivial. 0 not checked. [2021-11-22 23:31:27,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:31:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 234 states and 457 transitions. [2021-11-22 23:31:27,453 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 457 transitions. [2021-11-22 23:31:27,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2021-11-22 23:31:27,456 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:31:27,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:27,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 147 conjunts are in the unsatisfiable core [2021-11-22 23:31:27,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 25095 backedges. 210 proven. 3045 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2021-11-22 23:31:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:31:33,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 237 states and 463 transitions. [2021-11-22 23:31:33,724 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 463 transitions. [2021-11-22 23:31:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2021-11-22 23:31:33,727 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:31:33,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:33,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:31:33,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 25447 backedges. 588 proven. 7 refuted. 0 times theorem prover too weak. 24852 trivial. 0 not checked. [2021-11-22 23:31:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:31:34,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 237 states and 462 transitions. [2021-11-22 23:31:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 462 transitions. [2021-11-22 23:31:34,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2021-11-22 23:31:34,808 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:31:34,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:35,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 219 conjunts are in the unsatisfiable core [2021-11-22 23:31:35,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 25552 backedges. 212 proven. 3080 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2021-11-22 23:31:48,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:31:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 238 states and 464 transitions. [2021-11-22 23:31:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 464 transitions. [2021-11-22 23:31:48,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2021-11-22 23:31:48,638 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:31:48,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:48,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1286 conjuncts, 147 conjunts are in the unsatisfiable core [2021-11-22 23:31:48,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 26013 backedges. 214 proven. 3115 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2021-11-22 23:32:06,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:06,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 239 states and 468 transitions. [2021-11-22 23:32:06,257 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 468 transitions. [2021-11-22 23:32:06,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2021-11-22 23:32:06,260 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:06,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:06,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:32:06,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 26478 backedges. 635 proven. 7 refuted. 0 times theorem prover too weak. 25836 trivial. 0 not checked. [2021-11-22 23:32:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:10,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 240 states and 469 transitions. [2021-11-22 23:32:10,534 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 469 transitions. [2021-11-22 23:32:10,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2021-11-22 23:32:10,538 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:10,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:10,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 151 conjunts are in the unsatisfiable core [2021-11-22 23:32:10,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:12,290 INFO L134 CoverageAnalysis]: Checked inductivity of 26550 backedges. 216 proven. 3222 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2021-11-22 23:32:17,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 243 states and 475 transitions. [2021-11-22 23:32:17,218 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 475 transitions. [2021-11-22 23:32:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2021-11-22 23:32:17,221 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:17,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:17,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:32:17,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:18,045 INFO L134 CoverageAnalysis]: Checked inductivity of 26912 backedges. 605 proven. 7 refuted. 0 times theorem prover too weak. 26300 trivial. 0 not checked. [2021-11-22 23:32:18,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 243 states and 474 transitions. [2021-11-22 23:32:18,366 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 474 transitions. [2021-11-22 23:32:18,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2021-11-22 23:32:18,368 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:18,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:18,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 225 conjunts are in the unsatisfiable core [2021-11-22 23:32:18,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 27020 backedges. 218 proven. 3258 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2021-11-22 23:32:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:32,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 244 states and 476 transitions. [2021-11-22 23:32:32,813 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 476 transitions. [2021-11-22 23:32:32,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2021-11-22 23:32:32,816 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:32,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:33,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 225 conjunts are in the unsatisfiable core [2021-11-22 23:32:33,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:42,689 INFO L134 CoverageAnalysis]: Checked inductivity of 27494 backedges. 220 proven. 3294 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2021-11-22 23:32:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:49,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 245 states and 480 transitions. [2021-11-22 23:32:49,027 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 480 transitions. [2021-11-22 23:32:49,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2021-11-22 23:32:49,030 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:49,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:49,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 1331 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:32:49,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 27972 backedges. 653 proven. 7 refuted. 0 times theorem prover too weak. 27312 trivial. 0 not checked. [2021-11-22 23:32:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 246 states and 481 transitions. [2021-11-22 23:32:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 481 transitions. [2021-11-22 23:32:50,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2021-11-22 23:32:50,664 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:50,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:50,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 1338 conjuncts, 155 conjunts are in the unsatisfiable core [2021-11-22 23:32:50,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 28046 backedges. 222 proven. 3404 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2021-11-22 23:32:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:57,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 249 states and 487 transitions. [2021-11-22 23:32:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 487 transitions. [2021-11-22 23:32:57,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2021-11-22 23:32:57,265 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:57,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:57,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:32:57,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 28418 backedges. 622 proven. 7 refuted. 0 times theorem prover too weak. 27789 trivial. 0 not checked. [2021-11-22 23:32:58,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:58,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 249 states and 486 transitions. [2021-11-22 23:32:58,453 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 486 transitions. [2021-11-22 23:32:58,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2021-11-22 23:32:58,456 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:58,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:58,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 231 conjunts are in the unsatisfiable core [2021-11-22 23:32:58,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:33:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 28529 backedges. 224 proven. 3441 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2021-11-22 23:33:13,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:33:13,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 250 states and 488 transitions. [2021-11-22 23:33:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 488 transitions. [2021-11-22 23:33:13,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2021-11-22 23:33:13,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:33:13,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:33:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:33:13,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 1356 conjuncts, 231 conjunts are in the unsatisfiable core [2021-11-22 23:33:13,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:33:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 29016 backedges. 226 proven. 3478 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2021-11-22 23:33:30,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:33:30,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 251 states and 492 transitions. [2021-11-22 23:33:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 492 transitions. [2021-11-22 23:33:30,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2021-11-22 23:33:30,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:33:30,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:33:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:33:30,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:33:30,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:33:31,603 INFO L134 CoverageAnalysis]: Checked inductivity of 29507 backedges. 671 proven. 7 refuted. 0 times theorem prover too weak. 28829 trivial. 0 not checked. [2021-11-22 23:33:32,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:33:32,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 252 states and 493 transitions. [2021-11-22 23:33:32,406 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 493 transitions. [2021-11-22 23:33:32,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2021-11-22 23:33:32,410 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:33:32,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:33:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:33:32,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 159 conjunts are in the unsatisfiable core [2021-11-22 23:33:32,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:33:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 29583 backedges. 228 proven. 3591 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2021-11-22 23:33:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:33:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 255 states and 499 transitions. [2021-11-22 23:33:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 499 transitions. [2021-11-22 23:33:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2021-11-22 23:33:39,310 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:33:39,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:33:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:33:39,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1375 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:33:39,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:33:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 29965 backedges. 639 proven. 7 refuted. 0 times theorem prover too weak. 29319 trivial. 0 not checked. [2021-11-22 23:33:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:33:40,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 255 states and 498 transitions. [2021-11-22 23:33:40,588 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 498 transitions. [2021-11-22 23:33:40,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2021-11-22 23:33:40,591 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:33:40,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:33:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:33:40,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 237 conjunts are in the unsatisfiable core [2021-11-22 23:33:40,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:33:51,664 INFO L134 CoverageAnalysis]: Checked inductivity of 30079 backedges. 230 proven. 3629 refuted. 0 times theorem prover too weak. 26220 trivial. 0 not checked. [2021-11-22 23:33:56,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:33:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 256 states and 500 transitions. [2021-11-22 23:33:56,619 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 500 transitions. [2021-11-22 23:33:56,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2021-11-22 23:33:56,623 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:33:56,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:33:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:33:56,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 159 conjunts are in the unsatisfiable core [2021-11-22 23:33:56,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:34:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 30579 backedges. 232 proven. 3667 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2021-11-22 23:34:17,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:34:17,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 257 states and 504 transitions. [2021-11-22 23:34:17,422 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 504 transitions. [2021-11-22 23:34:17,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2021-11-22 23:34:17,425 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:34:17,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:34:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:34:17,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:34:17,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:34:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 31083 backedges. 689 proven. 7 refuted. 0 times theorem prover too weak. 30387 trivial. 0 not checked. [2021-11-22 23:34:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:34:19,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 258 states and 505 transitions. [2021-11-22 23:34:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 505 transitions. [2021-11-22 23:34:19,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2021-11-22 23:34:19,165 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:34:19,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:34:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:34:19,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 163 conjunts are in the unsatisfiable core [2021-11-22 23:34:19,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:34:21,019 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 234 proven. 3783 refuted. 0 times theorem prover too weak. 27144 trivial. 0 not checked. [2021-11-22 23:34:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:34:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 261 states and 511 transitions. [2021-11-22 23:34:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 511 transitions. [2021-11-22 23:34:26,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2021-11-22 23:34:26,531 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:34:26,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:34:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:34:26,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:34:26,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:34:27,437 INFO L134 CoverageAnalysis]: Checked inductivity of 31553 backedges. 656 proven. 7 refuted. 0 times theorem prover too weak. 30890 trivial. 0 not checked. [2021-11-22 23:34:27,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:34:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 261 states and 510 transitions. [2021-11-22 23:34:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 510 transitions. [2021-11-22 23:34:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2021-11-22 23:34:27,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:34:27,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:34:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:34:28,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1417 conjuncts, 243 conjunts are in the unsatisfiable core [2021-11-22 23:34:28,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:34:39,592 INFO L134 CoverageAnalysis]: Checked inductivity of 31670 backedges. 236 proven. 3822 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2021-11-22 23:34:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:34:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 262 states and 512 transitions. [2021-11-22 23:34:44,754 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 512 transitions. [2021-11-22 23:34:44,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2021-11-22 23:34:44,757 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:34:44,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:34:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:34:44,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 243 conjunts are in the unsatisfiable core [2021-11-22 23:34:44,972 INFO L286 TraceCheckSpWp]: Computing forward predicates...