./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.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_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/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_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/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_5fb39573-0b52-40d5-86dc-29bb8df43b03/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 a3d3bea00f90884a75828a52041ade76894eb11b308d280406ab40770bedb299 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:23:29,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:23:29,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:23:29,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:23:29,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:23:29,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:23:29,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:23:29,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:23:29,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:23:29,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:23:29,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:23:29,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:23:29,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:23:29,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:23:29,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:23:29,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:23:29,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:23:29,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:23:29,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:23:29,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:23:29,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:23:29,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:23:29,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:23:29,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:23:29,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:23:29,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:23:29,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:23:29,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:23:29,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:23:29,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:23:29,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:23:29,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:23:29,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:23:29,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:23:29,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:23:29,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:23:29,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:23:29,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:23:29,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:23:29,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:23:29,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:23:29,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:23:29,836 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:23:29,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:23:29,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:23:29,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:23:29,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:23:29,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:23:29,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:23:29,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:23:29,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:23:29,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:23:29,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:23:29,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:23:29,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:23:29,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:23:29,847 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:23:29,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:23:29,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:23:29,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:23:29,848 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:23:29,848 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:23:29,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:23:29,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:29,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:23:29,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:23:29,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:23:29,849 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:23:29,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:23:29,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:23:29,850 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_5fb39573-0b52-40d5-86dc-29bb8df43b03/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3d3bea00f90884a75828a52041ade76894eb11b308d280406ab40770bedb299 [2021-11-23 00:23:30,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:23:30,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:23:30,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:23:30,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:23:30,131 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:23:30,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.c [2021-11-23 00:23:30,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/data/441a150be/9ffeee6b495f4affbf8f5edb5d730fed/FLAGb4018a232 [2021-11-23 00:23:30,671 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:23:30,672 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.c [2021-11-23 00:23:30,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/data/441a150be/9ffeee6b495f4affbf8f5edb5d730fed/FLAGb4018a232 [2021-11-23 00:23:31,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/data/441a150be/9ffeee6b495f4affbf8f5edb5d730fed [2021-11-23 00:23:31,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:23:31,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:23:31,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:31,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:23:31,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:23:31,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1779c818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31, skipping insertion in model container [2021-11-23 00:23:31,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:23:31,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:23:31,239 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_5fb39573-0b52-40d5-86dc-29bb8df43b03/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.c[538,551] [2021-11-23 00:23:31,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:31,273 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:23:31,283 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_5fb39573-0b52-40d5-86dc-29bb8df43b03/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.c[538,551] [2021-11-23 00:23:31,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:31,303 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:23:31,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31 WrapperNode [2021-11-23 00:23:31,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:31,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:31,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:23:31,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:23:31,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,336 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2021-11-23 00:23:31,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:31,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:23:31,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:23:31,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:23:31,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:23:31,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:23:31,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:23:31,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:23:31,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:31,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:23:31,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:23:31,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb39573-0b52-40d5-86dc-29bb8df43b03/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:23:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:23:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:23:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:23:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:23:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:23:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:23:31,497 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:23:31,498 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:23:31,630 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:23:31,673 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:23:31,674 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 00:23:31,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:31 BoogieIcfgContainer [2021-11-23 00:23:31,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:23:31,677 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:23:31,677 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:23:31,689 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:23:31,689 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:31" (1/1) ... [2021-11-23 00:23:31,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:23:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-23 00:23:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-23 00:23:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:23:31,798 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:31,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 00:23:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 00:23:32,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:23:32,033 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:32,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:32,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:32,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2021-11-23 00:23:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2021-11-23 00:23:32,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:23:32,185 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:32,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:32,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2021-11-23 00:23:32,389 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2021-11-23 00:23:32,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 00:23:32,390 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:32,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2021-11-23 00:23:32,862 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2021-11-23 00:23:32,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:23:32,863 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:32,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:32,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:23:32,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:33,294 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:23:34,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:34,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2021-11-23 00:23:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2021-11-23 00:23:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:23:34,293 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:34,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:34,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:23:34,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:34,490 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:23:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 48 states and 95 transitions. [2021-11-23 00:23:35,656 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 95 transitions. [2021-11-23 00:23:35,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:23:35,658 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:35,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:35,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:23:35,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:23:36,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:36,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 52 states and 107 transitions. [2021-11-23 00:23:36,531 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 107 transitions. [2021-11-23 00:23:36,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:23:36,532 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:36,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:36,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:23:36,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:36,683 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:23:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:37,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 54 states and 112 transitions. [2021-11-23 00:23:37,039 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 112 transitions. [2021-11-23 00:23:37,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:23:37,041 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:37,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:37,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:23:37,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:23:38,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 59 states and 127 transitions. [2021-11-23 00:23:38,356 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 127 transitions. [2021-11-23 00:23:38,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:23:38,358 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:38,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:38,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:23:38,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:23:39,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:39,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 61 states and 128 transitions. [2021-11-23 00:23:39,108 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 128 transitions. [2021-11-23 00:23:39,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:23:39,110 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:39,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:39,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 00:23:39,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:23:42,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:42,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 66 states and 144 transitions. [2021-11-23 00:23:42,439 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 144 transitions. [2021-11-23 00:23:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:23:42,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:42,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:42,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 00:23:42,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:43,005 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 00:23:44,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 68 states and 145 transitions. [2021-11-23 00:23:44,051 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 145 transitions. [2021-11-23 00:23:44,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 00:23:44,053 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:44,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:44,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 00:23:44,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:23:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 74 states and 170 transitions. [2021-11-23 00:23:48,281 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 170 transitions. [2021-11-23 00:23:48,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:23:48,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:48,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:48,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:23:48,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:48,476 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:23:51,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:51,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 79 states and 184 transitions. [2021-11-23 00:23:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 184 transitions. [2021-11-23 00:23:51,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 00:23:51,694 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:51,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:51,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:23:51,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:23:53,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:53,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 81 states and 191 transitions. [2021-11-23 00:23:53,492 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 191 transitions. [2021-11-23 00:23:53,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:23:53,494 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:53,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:53,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:23:53,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:23:58,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 84 states and 205 transitions. [2021-11-23 00:23:58,440 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 205 transitions. [2021-11-23 00:23:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:23:58,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:58,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:58,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:23:58,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:58,815 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:24:02,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:02,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 94 states and 275 transitions. [2021-11-23 00:24:02,084 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 275 transitions. [2021-11-23 00:24:02,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:24:02,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:02,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:02,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:24:02,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:24:05,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:05,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 97 states and 288 transitions. [2021-11-23 00:24:05,878 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 288 transitions. [2021-11-23 00:24:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:24:05,880 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:05,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:05,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:24:05,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:06,267 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:24:07,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:07,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 97 states and 287 transitions. [2021-11-23 00:24:07,826 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 287 transitions. [2021-11-23 00:24:07,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:24:07,828 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:07,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:07,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:24:07,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:24:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:08,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 97 states and 286 transitions. [2021-11-23 00:24:08,812 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 286 transitions. [2021-11-23 00:24:08,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:24:08,814 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:08,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:08,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:24:08,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:24:10,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:10,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 99 states and 294 transitions. [2021-11-23 00:24:10,369 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 294 transitions. [2021-11-23 00:24:10,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:24:10,371 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:10,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:10,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:24:10,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:10,476 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-23 00:24:16,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:16,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 101 states and 299 transitions. [2021-11-23 00:24:16,591 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 299 transitions. [2021-11-23 00:24:16,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:24:16,592 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:16,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:16,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:24:16,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-23 00:24:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:18,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 103 states and 301 transitions. [2021-11-23 00:24:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 301 transitions. [2021-11-23 00:24:18,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:24:18,368 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:18,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:18,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:24:18,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:18,874 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:24:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 109 states and 329 transitions. [2021-11-23 00:24:26,502 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 329 transitions. [2021-11-23 00:24:26,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:24:26,503 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:26,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:26,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:24:26,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:24:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 111 states and 330 transitions. [2021-11-23 00:24:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 330 transitions. [2021-11-23 00:24:29,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:24:29,781 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:29,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:29,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:24:29,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:24:34,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 114 states and 333 transitions. [2021-11-23 00:24:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 333 transitions. [2021-11-23 00:24:34,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 00:24:34,214 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:34,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:34,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:24:34,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:24:53,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:53,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 119 states and 362 transitions. [2021-11-23 00:24:53,738 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 362 transitions. [2021-11-23 00:24:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 00:24:53,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:53,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:53,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:24:53,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:53,900 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:25:03,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:03,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 121 states and 367 transitions. [2021-11-23 00:25:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 367 transitions. [2021-11-23 00:25:03,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:25:03,568 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:03,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:25:03,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:25:03,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:25:07,073 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:25:28,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:28,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 130 states and 411 transitions. [2021-11-23 00:25:28,267 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 411 transitions. [2021-11-23 00:25:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:25:28,269 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:28,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:25:28,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:25:28,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:25:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:25:35,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:35,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 135 states and 434 transitions. [2021-11-23 00:25:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 434 transitions. [2021-11-23 00:25:35,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:25:35,032 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:35,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:25:35,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:25:35,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:25:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:25:40,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:40,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 137 states and 440 transitions. [2021-11-23 00:25:40,173 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 440 transitions. [2021-11-23 00:25:40,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:25:40,175 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:40,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:25:40,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:25:40,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:25:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:25:51,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 141 states and 509 transitions. [2021-11-23 00:25:51,436 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 509 transitions. [2021-11-23 00:25:51,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:25:51,438 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:51,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:25:51,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:25:51,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:25:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:26:14,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:14,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 146 states and 537 transitions. [2021-11-23 00:26:14,938 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 537 transitions. [2021-11-23 00:26:14,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:26:14,940 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:14,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:14,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:26:14,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:26:15,552 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:26:19,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 148 states and 543 transitions. [2021-11-23 00:26:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 543 transitions. [2021-11-23 00:26:19,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:26:19,960 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:19,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:19,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:26:19,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:26:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:26:22,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 151 states and 546 transitions. [2021-11-23 00:26:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 546 transitions. [2021-11-23 00:26:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:26:22,685 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:22,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:22,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:26:22,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:26:23,293 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:26:34,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:34,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 153 states and 550 transitions. [2021-11-23 00:26:34,314 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 550 transitions. [2021-11-23 00:26:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:26:34,315 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:34,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:34,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:26:34,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:26:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:26:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:37,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 153 states and 549 transitions. [2021-11-23 00:26:37,038 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 549 transitions. [2021-11-23 00:26:37,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:26:37,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:37,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:37,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:26:37,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:26:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:26:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 156 states and 565 transitions. [2021-11-23 00:26:51,708 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 565 transitions. [2021-11-23 00:26:51,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:26:51,709 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:51,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:51,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:26:51,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:26:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:26:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 158 states and 569 transitions. [2021-11-23 00:26:56,654 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 569 transitions. [2021-11-23 00:26:56,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:26:56,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:56,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:56,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:26:56,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:26:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:27:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:27:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 160 states and 573 transitions. [2021-11-23 00:27:01,958 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 573 transitions. [2021-11-23 00:27:01,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:27:01,960 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:27:01,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:27:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:02,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:27:02,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:27:07,787 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:27:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:27:25,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 163 states and 600 transitions. [2021-11-23 00:27:25,982 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 600 transitions. [2021-11-23 00:27:25,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:27:25,983 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:27:25,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:27:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:26,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:27:26,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:27:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:27:47,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:27:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 166 states and 614 transitions. [2021-11-23 00:27:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 614 transitions. [2021-11-23 00:27:47,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:27:47,129 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:27:47,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:27:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:47,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:27:47,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:27:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 00:27:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:27:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 170 states and 619 transitions. [2021-11-23 00:27:53,412 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 619 transitions. [2021-11-23 00:27:53,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:27:53,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:27:53,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:27:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:53,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:27:53,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:27:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:28:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:01,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 170 states and 618 transitions. [2021-11-23 00:28:01,594 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 618 transitions. [2021-11-23 00:28:01,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:28:01,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:01,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:01,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:28:01,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:28:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:28:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:20,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 173 states and 633 transitions. [2021-11-23 00:28:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 633 transitions. [2021-11-23 00:28:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:28:20,107 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:20,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:20,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:28:20,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:28:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 00:28:23,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:23,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 173 states and 632 transitions. [2021-11-23 00:28:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 632 transitions. [2021-11-23 00:28:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:28:23,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:23,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:23,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:28:23,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:28:23,998 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 00:28:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:28,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 173 states and 631 transitions. [2021-11-23 00:28:28,796 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 631 transitions. [2021-11-23 00:28:28,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:28:28,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:28,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:28,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:28:28,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:28:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 00:28:43,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:43,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 175 states and 642 transitions. [2021-11-23 00:28:43,843 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 642 transitions. [2021-11-23 00:28:43,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 00:28:43,844 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:43,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:43,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:28:43,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:28:44,005 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-23 00:29:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:29:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 178 states and 651 transitions. [2021-11-23 00:29:17,244 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 651 transitions. [2021-11-23 00:29:17,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 00:29:17,245 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:29:17,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:29:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:29:17,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:29:17,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:29:17,436 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-23 00:29:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:29:32,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 178 states and 650 transitions. [2021-11-23 00:29:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 650 transitions. [2021-11-23 00:29:32,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 00:29:32,895 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:29:32,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:29:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:29:32,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:29:32,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:29:33,089 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-23 00:29:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:29:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 180 states and 656 transitions. [2021-11-23 00:29:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 656 transitions. [2021-11-23 00:29:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 00:29:53,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:29:53,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:29:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:29:54,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:29:54,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:29:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 34 proven. 25 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-23 00:30:08,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:30:08,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 182 states and 658 transitions. [2021-11-23 00:30:08,163 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 658 transitions. [2021-11-23 00:30:08,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 00:30:08,164 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:30:08,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:30:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:30:08,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 00:30:08,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:30:24,396 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 00:31:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 185 states and 688 transitions. [2021-11-23 00:31:03,441 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 688 transitions. [2021-11-23 00:31:03,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 00:31:03,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:03,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:03,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:31:03,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:31:07,893 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 00:31:46,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:46,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 190 states and 720 transitions. [2021-11-23 00:31:46,783 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 720 transitions. [2021-11-23 00:31:46,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 00:31:46,785 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:46,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:46,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:31:46,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:31:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 00:31:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:59,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 190 states and 716 transitions. [2021-11-23 00:31:59,559 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 716 transitions. [2021-11-23 00:31:59,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 00:31:59,561 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:59,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:59,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:31:59,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:31:59,791 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 00:32:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:18,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 194 states and 802 transitions. [2021-11-23 00:32:18,019 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 802 transitions. [2021-11-23 00:32:18,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 00:32:18,020 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:18,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:18,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:32:18,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:32:18,170 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 00:32:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 194 states and 801 transitions. [2021-11-23 00:32:24,077 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 801 transitions. [2021-11-23 00:32:24,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:32:24,078 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:24,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:24,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:32:24,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:32:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:33:27,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:33:27,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 200 states and 840 transitions. [2021-11-23 00:33:27,752 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 840 transitions. [2021-11-23 00:33:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:33:27,753 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:33:27,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:33:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:33:27,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:33:27,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:33:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:33:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:33:58,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 203 states and 845 transitions. [2021-11-23 00:33:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 845 transitions. [2021-11-23 00:33:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:33:58,590 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:33:58,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:33:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:33:58,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:33:58,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:33:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:34:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:34:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 206 states and 848 transitions. [2021-11-23 00:34:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 848 transitions. [2021-11-23 00:34:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:34:28,658 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:34:28,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:34:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:34:28,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:34:28,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:34:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:34:50,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:34:50,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 208 states and 849 transitions. [2021-11-23 00:34:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 849 transitions. [2021-11-23 00:34:50,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 00:34:50,582 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:34:50,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:34:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:34:50,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:34:50,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:35:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:35:39,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:39,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 209 states and 856 transitions. [2021-11-23 00:35:39,576 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 856 transitions. [2021-11-23 00:35:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 00:35:39,577 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:39,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:39,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 00:35:39,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:35:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:36:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 211 states and 862 transitions. [2021-11-23 00:36:33,268 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 862 transitions. [2021-11-23 00:36:33,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 00:36:33,269 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:33,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:33,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 00:36:33,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.