./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.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_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/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_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/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_d172aa1c-d0d2-4c69-946f-d67d82975302/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 4e2993d4b0d2c145cb6ebddb0d9f125eb6995ee629adf15e0b0f7e55a8d8a49a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:40:12,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:40:12,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:40:12,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:40:12,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:40:12,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:40:12,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:40:12,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:40:12,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:40:12,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:40:12,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:40:12,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:40:12,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:40:12,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:40:12,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:40:12,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:40:12,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:40:12,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:40:12,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:40:12,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:40:12,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:40:12,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:40:12,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:40:12,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:40:12,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:40:12,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:40:12,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:40:12,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:40:12,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:40:12,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:40:12,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:40:12,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:40:12,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:40:12,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:40:12,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:40:12,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:40:12,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:40:12,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:40:12,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:40:12,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:40:12,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:40:12,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:40:12,761 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:40:12,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:40:12,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:40:12,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:40:12,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:40:12,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:40:12,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:40:12,766 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:40:12,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:40:12,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:40:12,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:40:12,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:40:12,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:40:12,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:40:12,769 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:40:12,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:40:12,770 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:40:12,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:40:12,770 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:40:12,770 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:40:12,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:40:12,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:40:12,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:40:12,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:40:12,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:40:12,772 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:40:12,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:40:12,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:40:12,773 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_d172aa1c-d0d2-4c69-946f-d67d82975302/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e2993d4b0d2c145cb6ebddb0d9f125eb6995ee629adf15e0b0f7e55a8d8a49a [2021-11-23 01:40:13,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:40:13,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:40:13,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:40:13,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:40:13,097 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:40:13,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c [2021-11-23 01:40:13,183 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/data/1d690f59f/1a6aa850e53143948e2e201ba93c8be8/FLAGd260e444d [2021-11-23 01:40:13,730 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:40:13,732 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c [2021-11-23 01:40:13,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/data/1d690f59f/1a6aa850e53143948e2e201ba93c8be8/FLAGd260e444d [2021-11-23 01:40:14,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/data/1d690f59f/1a6aa850e53143948e2e201ba93c8be8 [2021-11-23 01:40:14,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:40:14,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:40:14,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:40:14,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:40:14,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:40:14,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5da98a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14, skipping insertion in model container [2021-11-23 01:40:14,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:40:14,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:40:14,342 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_d172aa1c-d0d2-4c69-946f-d67d82975302/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c[588,601] [2021-11-23 01:40:14,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:40:14,374 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:40:14,387 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_d172aa1c-d0d2-4c69-946f-d67d82975302/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c[588,601] [2021-11-23 01:40:14,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:40:14,411 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:40:14,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14 WrapperNode [2021-11-23 01:40:14,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:40:14,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:40:14,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:40:14,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:40:14,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,448 INFO L137 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-23 01:40:14,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:40:14,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:40:14,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:40:14,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:40:14,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:40:14,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:40:14,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:40:14,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:40:14,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:40:14,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:40:14,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:40:14,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d172aa1c-d0d2-4c69-946f-d67d82975302/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:40:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:40:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:40:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:40:14,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:40:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:40:14,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:40:14,621 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:40:14,623 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:40:14,834 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:40:14,856 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:40:14,856 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:40:14,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:14 BoogieIcfgContainer [2021-11-23 01:40:14,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:40:14,859 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:40:14,860 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:40:14,869 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:40:14,870 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:14" (1/1) ... [2021-11-23 01:40:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:40:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:14,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-23 01:40:14,957 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-23 01:40:14,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:40:14,961 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:14,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:40:15,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:15,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 46 transitions. [2021-11-23 01:40:15,532 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 46 transitions. [2021-11-23 01:40:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:40:15,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:15,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:15,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:40:15,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:40:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:15,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 29 states and 52 transitions. [2021-11-23 01:40:15,983 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2021-11-23 01:40:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:40:15,984 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:15,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:16,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:40:16,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:40:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:16,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 33 states and 61 transitions. [2021-11-23 01:40:16,470 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2021-11-23 01:40:16,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:40:16,471 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:16,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:16,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:40:16,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:16,644 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:40:16,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:16,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 35 states and 66 transitions. [2021-11-23 01:40:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 66 transitions. [2021-11-23 01:40:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:40:16,866 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:16,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:16,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:40:16,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:17,023 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:40:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 36 states and 69 transitions. [2021-11-23 01:40:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2021-11-23 01:40:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:40:17,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:17,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:17,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:40:17,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 01:40:17,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 66 transitions. [2021-11-23 01:40:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2021-11-23 01:40:17,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:40:17,888 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:17,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:17,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:40:17,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:18,109 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-23 01:40:18,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 44 states and 81 transitions. [2021-11-23 01:40:18,735 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 81 transitions. [2021-11-23 01:40:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:40:18,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:18,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:18,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:40:18,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:40:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:19,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 88 transitions. [2021-11-23 01:40:19,470 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 88 transitions. [2021-11-23 01:40:19,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 01:40:19,472 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:19,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:19,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:40:19,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:19,707 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 01:40:20,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:20,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 52 states and 96 transitions. [2021-11-23 01:40:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2021-11-23 01:40:20,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:40:20,287 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:20,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:20,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 01:40:20,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 01:40:21,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:21,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 53 states and 98 transitions. [2021-11-23 01:40:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 98 transitions. [2021-11-23 01:40:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 01:40:21,061 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:21,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:21,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:40:21,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:40:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:21,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 54 states and 101 transitions. [2021-11-23 01:40:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 101 transitions. [2021-11-23 01:40:21,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 01:40:21,837 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:21,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:21,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:40:21,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 39 proven. 13 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-23 01:40:22,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 54 states and 100 transitions. [2021-11-23 01:40:22,265 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2021-11-23 01:40:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 01:40:22,267 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:22,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:22,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 01:40:22,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:22,814 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:40:22,842 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 01:40:23,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 57 states and 106 transitions. [2021-11-23 01:40:23,995 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 106 transitions. [2021-11-23 01:40:23,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 01:40:23,996 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:23,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:24,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:40:24,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 01:40:25,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:25,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 60 states and 112 transitions. [2021-11-23 01:40:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 112 transitions. [2021-11-23 01:40:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:40:25,083 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:25,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:25,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 01:40:25,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 01:40:26,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:26,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 61 states and 115 transitions. [2021-11-23 01:40:26,397 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 115 transitions. [2021-11-23 01:40:26,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 01:40:26,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:26,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:26,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:40:26,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:26,914 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 01:40:27,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:27,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 65 states and 122 transitions. [2021-11-23 01:40:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 122 transitions. [2021-11-23 01:40:27,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 01:40:27,839 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:27,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:27,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:40:27,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 01:40:29,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 67 states and 127 transitions. [2021-11-23 01:40:29,296 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 127 transitions. [2021-11-23 01:40:29,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 01:40:29,298 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:29,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:29,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:40:29,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:29,706 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 26 proven. 17 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 01:40:30,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:30,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 68 states and 129 transitions. [2021-11-23 01:40:30,421 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 129 transitions. [2021-11-23 01:40:30,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 01:40:30,423 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:30,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:30,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:40:30,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 55 proven. 13 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2021-11-23 01:40:31,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 70 states and 132 transitions. [2021-11-23 01:40:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 132 transitions. [2021-11-23 01:40:31,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 01:40:31,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:31,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:31,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:40:31,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-23 01:40:32,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:32,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 71 states and 135 transitions. [2021-11-23 01:40:32,160 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 135 transitions. [2021-11-23 01:40:32,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 01:40:32,161 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:32,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:32,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:40:32,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 55 proven. 19 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-11-23 01:40:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 73 states and 138 transitions. [2021-11-23 01:40:33,604 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 138 transitions. [2021-11-23 01:40:33,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-23 01:40:33,606 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:33,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:33,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:40:33,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:33,826 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 69 proven. 13 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-23 01:40:34,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 73 states and 137 transitions. [2021-11-23 01:40:34,137 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 137 transitions. [2021-11-23 01:40:34,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-23 01:40:34,139 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:34,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:34,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 01:40:34,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:34,839 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-23 01:40:36,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:36,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 76 states and 143 transitions. [2021-11-23 01:40:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 143 transitions. [2021-11-23 01:40:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 01:40:36,479 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:36,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:36,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:40:36,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:37,140 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 32 proven. 30 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-23 01:40:38,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 79 states and 149 transitions. [2021-11-23 01:40:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 149 transitions. [2021-11-23 01:40:38,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 01:40:38,030 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:38,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:38,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:40:38,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-23 01:40:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:39,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 80 states and 152 transitions. [2021-11-23 01:40:39,902 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 152 transitions. [2021-11-23 01:40:39,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-23 01:40:39,903 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:39,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:39,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 01:40:39,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 34 proven. 33 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-23 01:40:41,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 84 states and 159 transitions. [2021-11-23 01:40:41,820 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 159 transitions. [2021-11-23 01:40:41,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 01:40:41,821 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:41,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:41,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:40:41,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-23 01:40:43,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 86 states and 163 transitions. [2021-11-23 01:40:43,609 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 163 transitions. [2021-11-23 01:40:43,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-23 01:40:43,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:43,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:43,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:40:43,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:44,139 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-23 01:40:45,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 87 states and 165 transitions. [2021-11-23 01:40:45,038 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 165 transitions. [2021-11-23 01:40:45,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-23 01:40:45,039 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:45,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:45,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:40:45,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 38 proven. 39 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-23 01:40:46,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:46,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 88 states and 168 transitions. [2021-11-23 01:40:46,038 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 168 transitions. [2021-11-23 01:40:46,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-23 01:40:46,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:46,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:46,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:40:46,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:46,329 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 99 proven. 13 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2021-11-23 01:40:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 88 states and 167 transitions. [2021-11-23 01:40:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 167 transitions. [2021-11-23 01:40:46,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-23 01:40:46,749 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:46,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:46,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:40:46,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 42 proven. 42 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-23 01:40:50,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:50,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 91 states and 173 transitions. [2021-11-23 01:40:50,136 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 173 transitions. [2021-11-23 01:40:50,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-23 01:40:50,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:50,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:50,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:40:50,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-23 01:40:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:52,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 94 states and 179 transitions. [2021-11-23 01:40:52,068 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 179 transitions. [2021-11-23 01:40:52,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 01:40:52,069 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:52,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:52,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:40:52,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 44 proven. 42 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-23 01:40:55,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:55,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 95 states and 182 transitions. [2021-11-23 01:40:55,235 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 182 transitions. [2021-11-23 01:40:55,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 01:40:55,236 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:55,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:55,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-23 01:40:55,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:56,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 44 proven. 58 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-23 01:40:57,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 99 states and 189 transitions. [2021-11-23 01:40:57,804 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 189 transitions. [2021-11-23 01:40:57,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 01:40:57,804 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:57,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:57,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:40:57,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:40:58,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 46 proven. 42 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-23 01:41:00,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:00,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 101 states and 193 transitions. [2021-11-23 01:41:00,857 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 193 transitions. [2021-11-23 01:41:00,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-23 01:41:00,858 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:00,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:00,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 01:41:00,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 46 proven. 62 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-23 01:41:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:03,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 102 states and 196 transitions. [2021-11-23 01:41:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 196 transitions. [2021-11-23 01:41:03,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-23 01:41:03,093 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:03,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:03,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:41:03,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 48 proven. 66 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-23 01:41:04,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:04,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 104 states and 201 transitions. [2021-11-23 01:41:04,747 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 201 transitions. [2021-11-23 01:41:04,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 01:41:04,748 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:04,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:04,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:41:04,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:04,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 129 proven. 13 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2021-11-23 01:41:05,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:05,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 104 states and 200 transitions. [2021-11-23 01:41:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 200 transitions. [2021-11-23 01:41:05,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-23 01:41:05,489 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:05,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:05,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:41:05,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 52 proven. 70 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-23 01:41:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 107 states and 206 transitions. [2021-11-23 01:41:09,653 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 206 transitions. [2021-11-23 01:41:09,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-23 01:41:09,654 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:09,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:09,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-23 01:41:09,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 52 proven. 85 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-23 01:41:12,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 110 states and 211 transitions. [2021-11-23 01:41:12,074 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 211 transitions. [2021-11-23 01:41:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-23 01:41:12,075 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:12,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:12,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:41:12,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:13,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 54 proven. 70 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-23 01:41:14,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 111 states and 213 transitions. [2021-11-23 01:41:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 213 transitions. [2021-11-23 01:41:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-23 01:41:14,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:14,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:14,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 01:41:14,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:16,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1548 backedges. 54 proven. 90 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-23 01:41:18,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:18,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 112 states and 216 transitions. [2021-11-23 01:41:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 216 transitions. [2021-11-23 01:41:18,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-23 01:41:18,224 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:18,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:18,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-23 01:41:18,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:19,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 56 proven. 70 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-23 01:41:21,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 113 states and 218 transitions. [2021-11-23 01:41:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 218 transitions. [2021-11-23 01:41:21,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-23 01:41:21,753 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:21,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:21,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 01:41:21,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:22,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1663 backedges. 56 proven. 95 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-23 01:41:24,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:24,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 114 states and 219 transitions. [2021-11-23 01:41:24,552 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 219 transitions. [2021-11-23 01:41:24,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-23 01:41:24,553 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:24,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:24,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:41:24,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:25,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1782 backedges. 58 proven. 100 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-23 01:41:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:26,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 115 states and 222 transitions. [2021-11-23 01:41:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 222 transitions. [2021-11-23 01:41:26,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-23 01:41:26,166 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:26,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:26,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:41:26,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:26,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 159 proven. 13 refuted. 0 times theorem prover too weak. 1733 trivial. 0 not checked. [2021-11-23 01:41:27,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:27,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 115 states and 221 transitions. [2021-11-23 01:41:27,156 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 221 transitions. [2021-11-23 01:41:27,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-23 01:41:27,157 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:27,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:27,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 01:41:27,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2027 backedges. 62 proven. 105 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-11-23 01:41:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 118 states and 227 transitions. [2021-11-23 01:41:32,193 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 227 transitions. [2021-11-23 01:41:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-23 01:41:32,195 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:32,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:32,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-23 01:41:32,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 62 proven. 123 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-11-23 01:41:36,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 121 states and 232 transitions. [2021-11-23 01:41:36,252 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 232 transitions. [2021-11-23 01:41:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-23 01:41:36,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:36,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:36,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-23 01:41:36,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2153 backedges. 64 proven. 105 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2021-11-23 01:41:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 122 states and 235 transitions. [2021-11-23 01:41:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 235 transitions. [2021-11-23 01:41:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-23 01:41:42,141 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:42,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:42,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-23 01:41:42,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2177 backedges. 64 proven. 129 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2021-11-23 01:41:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 123 states and 238 transitions. [2021-11-23 01:41:47,036 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 238 transitions. [2021-11-23 01:41:47,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-23 01:41:47,037 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:47,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:47,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 01:41:47,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:49,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2283 backedges. 66 proven. 105 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2021-11-23 01:41:52,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:52,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 125 states and 242 transitions. [2021-11-23 01:41:52,722 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 242 transitions. [2021-11-23 01:41:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-23 01:41:52,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:52,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:52,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 01:41:52,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 66 proven. 135 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2021-11-23 01:41:57,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:57,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 126 states and 243 transitions. [2021-11-23 01:41:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 243 transitions. [2021-11-23 01:41:57,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-23 01:41:57,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:57,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:57,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:41:57,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2453 backedges. 68 proven. 141 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2021-11-23 01:41:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:59,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 127 states and 246 transitions. [2021-11-23 01:41:59,316 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 246 transitions. [2021-11-23 01:41:59,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-23 01:41:59,318 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:59,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:59,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:41:59,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2597 backedges. 189 proven. 13 refuted. 0 times theorem prover too weak. 2395 trivial. 0 not checked. [2021-11-23 01:42:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 127 states and 245 transitions. [2021-11-23 01:42:00,550 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 245 transitions. [2021-11-23 01:42:00,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-23 01:42:00,552 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:00,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:00,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 01:42:00,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:42:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 72 proven. 147 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2021-11-23 01:42:07,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 130 states and 251 transitions. [2021-11-23 01:42:07,196 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 251 transitions. [2021-11-23 01:42:07,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-23 01:42:07,197 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:07,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:07,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 01:42:07,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:42:09,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2760 backedges. 72 proven. 168 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2021-11-23 01:42:12,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:12,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 133 states and 256 transitions. [2021-11-23 01:42:12,797 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 256 transitions. [2021-11-23 01:42:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-23 01:42:12,799 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:12,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:12,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-23 01:42:12,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:42:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2885 backedges. 74 proven. 147 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2021-11-23 01:42:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 134 states and 258 transitions. [2021-11-23 01:42:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 258 transitions. [2021-11-23 01:42:19,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-23 01:42:19,350 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:19,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:19,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-23 01:42:19,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:42:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2913 backedges. 74 proven. 175 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2021-11-23 01:42:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:26,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 135 states and 261 transitions. [2021-11-23 01:42:26,417 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 261 transitions. [2021-11-23 01:42:26,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-23 01:42:26,419 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:26,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:26,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-23 01:42:26,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:42:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3035 backedges. 76 proven. 147 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2021-11-23 01:42:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:34,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 136 states and 263 transitions. [2021-11-23 01:42:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 263 transitions. [2021-11-23 01:42:34,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-23 01:42:34,583 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:34,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:34,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 01:42:34,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:42:37,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 76 proven. 182 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2021-11-23 01:42:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:41,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 137 states and 265 transitions. [2021-11-23 01:42:41,738 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 265 transitions. [2021-11-23 01:42:41,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-23 01:42:41,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:41,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:41,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:42:41,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:42:43,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3231 backedges. 78 proven. 189 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2021-11-23 01:42:46,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 139 states and 270 transitions. [2021-11-23 01:42:46,360 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 270 transitions. [2021-11-23 01:42:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-23 01:42:46,362 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:46,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:46,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:42:46,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:42:46,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3396 backedges. 219 proven. 13 refuted. 0 times theorem prover too weak. 3164 trivial. 0 not checked. [2021-11-23 01:42:47,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:47,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 139 states and 269 transitions. [2021-11-23 01:42:47,832 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 269 transitions. [2021-11-23 01:42:47,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-23 01:42:47,833 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:47,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:47,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-23 01:42:47,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:42:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3558 backedges. 82 proven. 196 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2021-11-23 01:42:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:56,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 142 states and 275 transitions. [2021-11-23 01:42:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 275 transitions. [2021-11-23 01:42:56,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-23 01:42:56,251 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:56,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:56,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-23 01:42:56,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:43:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3582 backedges. 82 proven. 220 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2021-11-23 01:43:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 145 states and 280 transitions. [2021-11-23 01:43:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 280 transitions. [2021-11-23 01:43:03,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-23 01:43:03,468 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:03,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:03,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-23 01:43:03,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:43:08,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3724 backedges. 84 proven. 196 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2021-11-23 01:43:15,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:15,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 146 states and 283 transitions. [2021-11-23 01:43:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 283 transitions. [2021-11-23 01:43:15,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-23 01:43:15,284 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:15,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:15,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 69 conjunts are in the unsatisfiable core [2021-11-23 01:43:15,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:43:20,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3756 backedges. 84 proven. 228 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2021-11-23 01:43:24,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:24,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 147 states and 286 transitions. [2021-11-23 01:43:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 286 transitions. [2021-11-23 01:43:24,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-23 01:43:24,230 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:24,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:24,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-23 01:43:24,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:43:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3894 backedges. 86 proven. 196 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2021-11-23 01:43:38,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 149 states and 290 transitions. [2021-11-23 01:43:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 290 transitions. [2021-11-23 01:43:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-23 01:43:38,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:38,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:38,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-23 01:43:38,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:43:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3934 backedges. 86 proven. 236 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2021-11-23 01:43:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:46,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 150 states and 291 transitions. [2021-11-23 01:43:46,113 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 291 transitions. [2021-11-23 01:43:46,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-23 01:43:46,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:46,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:46,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 01:43:46,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:43:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4116 backedges. 88 proven. 244 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2021-11-23 01:43:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 151 states and 294 transitions. [2021-11-23 01:43:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 294 transitions. [2021-11-23 01:43:50,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-23 01:43:50,164 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:50,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:50,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:43:50,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:43:50,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4302 backedges. 249 proven. 13 refuted. 0 times theorem prover too weak. 4040 trivial. 0 not checked. [2021-11-23 01:43:51,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 151 states and 293 transitions. [2021-11-23 01:43:51,842 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 293 transitions. [2021-11-23 01:43:51,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-23 01:43:51,843 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:51,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:51,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-23 01:43:51,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:43:53,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4484 backedges. 92 proven. 252 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2021-11-23 01:44:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:03,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 154 states and 299 transitions. [2021-11-23 01:44:03,271 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 299 transitions. [2021-11-23 01:44:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-23 01:44:03,272 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:03,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:03,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-23 01:44:03,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:44:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4511 backedges. 92 proven. 279 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2021-11-23 01:44:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:13,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 157 states and 304 transitions. [2021-11-23 01:44:13,772 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 304 transitions. [2021-11-23 01:44:13,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-23 01:44:13,773 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:13,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:13,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-23 01:44:13,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:44:20,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4670 backedges. 94 proven. 252 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2021-11-23 01:44:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:26,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 158 states and 306 transitions. [2021-11-23 01:44:26,259 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 306 transitions. [2021-11-23 01:44:26,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-23 01:44:26,261 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:26,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:26,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 77 conjunts are in the unsatisfiable core [2021-11-23 01:44:26,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:44:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4706 backedges. 94 proven. 288 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2021-11-23 01:44:38,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:38,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 159 states and 310 transitions. [2021-11-23 01:44:38,855 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 310 transitions. [2021-11-23 01:44:38,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-23 01:44:38,856 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:38,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:38,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-23 01:44:38,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:44:45,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 96 proven. 252 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2021-11-23 01:45:04,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:45:04,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 160 states and 312 transitions. [2021-11-23 01:45:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 312 transitions. [2021-11-23 01:45:04,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-11-23 01:45:04,523 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:04,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:04,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-23 01:45:04,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:45:08,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4905 backedges. 96 proven. 297 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2021-11-23 01:45:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:14,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 161 states and 312 transitions. [2021-11-23 01:45:14,343 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 312 transitions. [2021-11-23 01:45:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-23 01:45:14,344 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:14,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:14,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-23 01:45:14,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:45:16,111 INFO L134 CoverageAnalysis]: Checked inductivity of 5108 backedges. 98 proven. 306 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2021-11-23 01:45:19,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:19,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 162 states and 315 transitions. [2021-11-23 01:45:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 315 transitions. [2021-11-23 01:45:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-23 01:45:19,916 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:19,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:19,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:45:19,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:45:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 5315 backedges. 279 proven. 13 refuted. 0 times theorem prover too weak. 5023 trivial. 0 not checked. [2021-11-23 01:45:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 162 states and 314 transitions. [2021-11-23 01:45:22,506 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 314 transitions. [2021-11-23 01:45:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-23 01:45:22,507 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:22,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:22,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 01:45:22,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:45:24,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5517 backedges. 102 proven. 315 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2021-11-23 01:45:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 165 states and 320 transitions. [2021-11-23 01:45:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 320 transitions. [2021-11-23 01:45:34,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-23 01:45:34,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:34,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:34,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-23 01:45:34,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:45:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 5547 backedges. 102 proven. 345 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2021-11-23 01:45:49,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:49,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 168 states and 325 transitions. [2021-11-23 01:45:49,040 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 325 transitions. [2021-11-23 01:45:49,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-11-23 01:45:49,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:49,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:49,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-23 01:45:49,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:45:56,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5723 backedges. 104 proven. 315 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2021-11-23 01:46:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:08,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 169 states and 328 transitions. [2021-11-23 01:46:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 328 transitions. [2021-11-23 01:46:08,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-23 01:46:08,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:08,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:08,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 85 conjunts are in the unsatisfiable core [2021-11-23 01:46:08,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 5763 backedges. 104 proven. 355 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2021-11-23 01:46:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:26,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 170 states and 331 transitions. [2021-11-23 01:46:26,241 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 331 transitions. [2021-11-23 01:46:26,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-23 01:46:26,242 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:26,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:26,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 83 conjunts are in the unsatisfiable core [2021-11-23 01:46:26,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:35,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5933 backedges. 106 proven. 315 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2021-11-23 01:46:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 172 states and 335 transitions. [2021-11-23 01:46:47,095 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 335 transitions. [2021-11-23 01:46:47,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-23 01:46:47,096 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:47,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:47,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-23 01:46:47,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5983 backedges. 106 proven. 365 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2021-11-23 01:47:06,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 173 states and 337 transitions. [2021-11-23 01:47:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 337 transitions. [2021-11-23 01:47:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-23 01:47:06,548 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:06,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:06,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-23 01:47:06,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:47:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 6207 backedges. 108 proven. 375 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2021-11-23 01:47:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:17,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 175 states and 342 transitions. [2021-11-23 01:47:17,309 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 342 transitions. [2021-11-23 01:47:17,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-23 01:47:17,311 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:17,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:17,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:47:17,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:47:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6435 backedges. 309 proven. 13 refuted. 0 times theorem prover too weak. 6113 trivial. 0 not checked. [2021-11-23 01:47:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:20,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 175 states and 341 transitions. [2021-11-23 01:47:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 341 transitions. [2021-11-23 01:47:20,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-23 01:47:20,147 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:20,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:20,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 01:47:20,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:47:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6657 backedges. 112 proven. 385 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2021-11-23 01:47:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:41,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 178 states and 347 transitions. [2021-11-23 01:47:41,944 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 347 transitions. [2021-11-23 01:47:41,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-11-23 01:47:41,946 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:41,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:42,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 73 conjunts are in the unsatisfiable core [2021-11-23 01:47:42,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:47:54,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6690 backedges. 112 proven. 418 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2021-11-23 01:48:01,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:01,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 181 states and 352 transitions. [2021-11-23 01:48:01,951 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 352 transitions. [2021-11-23 01:48:01,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-11-23 01:48:01,952 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:01,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:02,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-23 01:48:02,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:48:15,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6883 backedges. 114 proven. 385 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2021-11-23 01:48:25,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 182 states and 354 transitions. [2021-11-23 01:48:25,611 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 354 transitions. [2021-11-23 01:48:25,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-11-23 01:48:25,612 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:25,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:25,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-23 01:48:25,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:48:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 6927 backedges. 114 proven. 429 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2021-11-23 01:48:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 183 states and 358 transitions. [2021-11-23 01:48:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 358 transitions. [2021-11-23 01:48:49,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-23 01:48:49,620 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:49,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:49,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-23 01:48:49,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:03,428 INFO L134 CoverageAnalysis]: Checked inductivity of 7113 backedges. 116 proven. 385 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2021-11-23 01:49:28,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:49:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:28,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 184 states and 360 transitions. [2021-11-23 01:49:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 360 transitions. [2021-11-23 01:49:28,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-23 01:49:28,572 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:28,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:28,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-23 01:49:28,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7168 backedges. 116 proven. 440 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2021-11-23 01:50:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:02,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 185 states and 360 transitions. [2021-11-23 01:50:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 360 transitions. [2021-11-23 01:50:02,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-23 01:50:02,933 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:02,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:03,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 01:50:03,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 7413 backedges. 118 proven. 451 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2021-11-23 01:50:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 186 states and 363 transitions. [2021-11-23 01:50:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 363 transitions. [2021-11-23 01:50:11,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-23 01:50:11,642 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:11,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:11,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:50:11,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 7662 backedges. 339 proven. 13 refuted. 0 times theorem prover too weak. 7310 trivial. 0 not checked. [2021-11-23 01:50:18,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:18,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 186 states and 362 transitions. [2021-11-23 01:50:18,999 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 362 transitions. [2021-11-23 01:50:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-11-23 01:50:19,002 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:19,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:19,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-23 01:50:19,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:21,612 INFO L134 CoverageAnalysis]: Checked inductivity of 7904 backedges. 122 proven. 462 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2021-11-23 01:50:41,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 189 states and 368 transitions. [2021-11-23 01:50:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 368 transitions. [2021-11-23 01:50:41,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-23 01:50:41,016 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:41,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:41,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:50:41,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 7940 backedges. 858 proven. 0 refuted. 0 times theorem prover too weak. 7082 trivial. 0 not checked. [2021-11-23 01:51:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:46,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 145 states and 265 transitions. [2021-11-23 01:51:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 265 transitions. [2021-11-23 01:51:46,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-23 01:51:46,994 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:46,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:47,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-23 01:51:47,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:52:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 8150 backedges. 124 proven. 462 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2021-11-23 01:52:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:52:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 144 states and 261 transitions. [2021-11-23 01:52:31,282 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 261 transitions. [2021-11-23 01:52:31,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-11-23 01:52:31,285 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:52:31,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:52:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:52:31,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-23 01:52:31,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:52:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 8400 backedges. 126 proven. 462 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked.