./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/toy2.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/toy2.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a77d6f304c19846fdc8cd5bba9216d69953659ded966cffbf7faa285e2d864a4 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:15:18,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:15:18,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:15:18,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:15:18,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:15:18,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:15:18,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:15:18,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:15:18,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:15:18,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:15:18,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:15:18,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:15:18,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:15:18,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:15:18,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:15:18,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:15:18,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:15:18,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:15:18,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:15:18,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:15:18,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:15:18,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:15:18,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:15:18,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:15:18,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:15:18,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:15:18,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:15:18,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:15:18,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:15:18,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:15:18,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:15:18,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:15:18,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:15:18,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:15:18,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:15:18,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:15:18,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:15:18,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:15:18,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:15:18,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:15:18,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:15:18,916 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:15:18,940 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:15:18,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:15:18,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:15:18,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:15:18,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:15:18,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:15:18,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:15:18,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:15:18,942 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:15:18,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:15:18,943 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:15:18,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:15:18,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:15:18,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:15:18,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:15:18,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:15:18,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:15:18,944 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:15:18,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:15:18,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:15:18,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:15:18,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:15:18,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:15:18,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:15:18,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:18,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:15:18,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:15:18,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:15:18,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:15:18,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:15:18,946 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:15:18,947 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:15:18,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:15:18,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:15:18,947 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_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a77d6f304c19846fdc8cd5bba9216d69953659ded966cffbf7faa285e2d864a4 [2021-12-06 17:15:19,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:15:19,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:15:19,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:15:19,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:15:19,162 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:15:19,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/systemc/toy2.cil.c [2021-12-06 17:15:19,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/data/ef636df99/feaf43487b31463d93d64ee857ade03e/FLAGec20a00a6 [2021-12-06 17:15:19,583 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:15:19,583 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/sv-benchmarks/c/systemc/toy2.cil.c [2021-12-06 17:15:19,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/data/ef636df99/feaf43487b31463d93d64ee857ade03e/FLAGec20a00a6 [2021-12-06 17:15:19,604 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/data/ef636df99/feaf43487b31463d93d64ee857ade03e [2021-12-06 17:15:19,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:15:19,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:15:19,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:19,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:15:19,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:15:19,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9ba254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19, skipping insertion in model container [2021-12-06 17:15:19,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:15:19,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:15:19,745 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_c56529ef-d660-458e-99b3-09a48e9b630a/sv-benchmarks/c/systemc/toy2.cil.c[698,711] [2021-12-06 17:15:19,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:19,793 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:15:19,801 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_c56529ef-d660-458e-99b3-09a48e9b630a/sv-benchmarks/c/systemc/toy2.cil.c[698,711] [2021-12-06 17:15:19,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:19,836 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:15:19,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19 WrapperNode [2021-12-06 17:15:19,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:19,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:19,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:15:19,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:15:19,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,869 INFO L137 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 361 [2021-12-06 17:15:19,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:19,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:15:19,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:15:19,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:15:19,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:15:19,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:15:19,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:15:19,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:15:19,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (1/1) ... [2021-12-06 17:15:19,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:19,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:19,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:15:19,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:15:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:15:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:15:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:15:19,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:15:20,008 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:15:20,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:15:20,266 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:15:20,273 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:15:20,273 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-06 17:15:20,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:20 BoogieIcfgContainer [2021-12-06 17:15:20,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:15:20,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:15:20,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:15:20,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:15:20,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:15:19" (1/3) ... [2021-12-06 17:15:20,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1103dd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:20, skipping insertion in model container [2021-12-06 17:15:20,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:19" (2/3) ... [2021-12-06 17:15:20,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1103dd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:20, skipping insertion in model container [2021-12-06 17:15:20,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:20" (3/3) ... [2021-12-06 17:15:20,281 INFO L111 eAbstractionObserver]: Analyzing ICFG toy2.cil.c [2021-12-06 17:15:20,285 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:15:20,285 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:15:20,320 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:15:20,325 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 17:15:20,325 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:15:20,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.8372093023255813) internal successors, (237), 130 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:20,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:20,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:20,346 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:20,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:20,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1633671955, now seen corresponding path program 1 times [2021-12-06 17:15:20,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:20,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352168366] [2021-12-06 17:15:20,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:20,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:20,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:20,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352168366] [2021-12-06 17:15:20,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352168366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:20,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:20,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:20,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872465738] [2021-12-06 17:15:20,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:20,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:20,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:20,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:20,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:20,523 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.8372093023255813) internal successors, (237), 130 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:20,558 INFO L93 Difference]: Finished difference Result 253 states and 460 transitions. [2021-12-06 17:15:20,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:20,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:20,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:20,568 INFO L225 Difference]: With dead ends: 253 [2021-12-06 17:15:20,568 INFO L226 Difference]: Without dead ends: 126 [2021-12-06 17:15:20,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:20,573 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:20,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 221 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:20,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-12-06 17:15:20,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-12-06 17:15:20,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.744) internal successors, (218), 125 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 218 transitions. [2021-12-06 17:15:20,607 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 218 transitions. Word has length 35 [2021-12-06 17:15:20,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:20,608 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 218 transitions. [2021-12-06 17:15:20,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,608 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 218 transitions. [2021-12-06 17:15:20,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:20,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:20,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:20,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:15:20,610 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:20,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:20,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1611039701, now seen corresponding path program 1 times [2021-12-06 17:15:20,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:20,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445911202] [2021-12-06 17:15:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:20,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:20,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:20,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:20,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445911202] [2021-12-06 17:15:20,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445911202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:20,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:20,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:20,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460564321] [2021-12-06 17:15:20,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:20,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:20,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:20,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:20,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:20,688 INFO L87 Difference]: Start difference. First operand 126 states and 218 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:20,744 INFO L93 Difference]: Finished difference Result 340 states and 586 transitions. [2021-12-06 17:15:20,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:15:20,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:20,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:20,747 INFO L225 Difference]: With dead ends: 340 [2021-12-06 17:15:20,747 INFO L226 Difference]: Without dead ends: 217 [2021-12-06 17:15:20,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:20,750 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 568 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:20,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [568 Valid, 366 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:20,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-12-06 17:15:20,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2021-12-06 17:15:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.7230046948356808) internal successors, (367), 213 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 367 transitions. [2021-12-06 17:15:20,770 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 367 transitions. Word has length 35 [2021-12-06 17:15:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:20,771 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 367 transitions. [2021-12-06 17:15:20,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,771 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 367 transitions. [2021-12-06 17:15:20,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:20,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:20,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:20,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:15:20,773 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:20,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:20,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1101566611, now seen corresponding path program 1 times [2021-12-06 17:15:20,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:20,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173034550] [2021-12-06 17:15:20,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:20,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:20,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:20,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173034550] [2021-12-06 17:15:20,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173034550] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:20,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:20,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:20,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139484755] [2021-12-06 17:15:20,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:20,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:20,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:20,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:20,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:20,829 INFO L87 Difference]: Start difference. First operand 214 states and 367 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:20,865 INFO L93 Difference]: Finished difference Result 419 states and 721 transitions. [2021-12-06 17:15:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:20,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:20,868 INFO L225 Difference]: With dead ends: 419 [2021-12-06 17:15:20,868 INFO L226 Difference]: Without dead ends: 214 [2021-12-06 17:15:20,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:20,870 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 187 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:20,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 201 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:20,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-12-06 17:15:20,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-12-06 17:15:20,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.6666666666666667) internal successors, (355), 213 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 355 transitions. [2021-12-06 17:15:20,893 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 355 transitions. Word has length 35 [2021-12-06 17:15:20,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:20,893 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 355 transitions. [2021-12-06 17:15:20,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,894 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 355 transitions. [2021-12-06 17:15:20,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:20,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:20,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:20,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:15:20,896 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:20,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:20,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1744930967, now seen corresponding path program 1 times [2021-12-06 17:15:20,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:20,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125356635] [2021-12-06 17:15:20,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:20,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:20,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:20,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:20,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125356635] [2021-12-06 17:15:20,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125356635] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:20,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:20,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:20,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590847922] [2021-12-06 17:15:20,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:20,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:20,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:20,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:20,942 INFO L87 Difference]: Start difference. First operand 214 states and 355 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,017 INFO L93 Difference]: Finished difference Result 583 states and 968 transitions. [2021-12-06 17:15:21,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:21,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,020 INFO L225 Difference]: With dead ends: 583 [2021-12-06 17:15:21,020 INFO L226 Difference]: Without dead ends: 379 [2021-12-06 17:15:21,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:21,022 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 365 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:21,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 452 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-12-06 17:15:21,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 214. [2021-12-06 17:15:21,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.6525821596244132) internal successors, (352), 213 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 352 transitions. [2021-12-06 17:15:21,042 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 352 transitions. Word has length 35 [2021-12-06 17:15:21,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:21,042 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 352 transitions. [2021-12-06 17:15:21,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,042 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 352 transitions. [2021-12-06 17:15:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:21,043 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:21,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:21,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:15:21,043 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:21,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1806970581, now seen corresponding path program 1 times [2021-12-06 17:15:21,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:21,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069053265] [2021-12-06 17:15:21,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069053265] [2021-12-06 17:15:21,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069053265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:21,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:21,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:21,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386863335] [2021-12-06 17:15:21,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:21,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:21,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:21,073 INFO L87 Difference]: Start difference. First operand 214 states and 352 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,117 INFO L93 Difference]: Finished difference Result 584 states and 962 transitions. [2021-12-06 17:15:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:21,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,119 INFO L225 Difference]: With dead ends: 584 [2021-12-06 17:15:21,119 INFO L226 Difference]: Without dead ends: 381 [2021-12-06 17:15:21,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:21,121 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 363 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:21,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 459 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:21,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-12-06 17:15:21,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 214. [2021-12-06 17:15:21,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.6384976525821595) internal successors, (349), 213 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 349 transitions. [2021-12-06 17:15:21,138 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 349 transitions. Word has length 35 [2021-12-06 17:15:21,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:21,139 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 349 transitions. [2021-12-06 17:15:21,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,139 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 349 transitions. [2021-12-06 17:15:21,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:21,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:21,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:21,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:15:21,141 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:21,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:21,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1947519191, now seen corresponding path program 1 times [2021-12-06 17:15:21,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:21,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039764153] [2021-12-06 17:15:21,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039764153] [2021-12-06 17:15:21,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039764153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:21,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:21,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:21,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946796011] [2021-12-06 17:15:21,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:21,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:21,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:21,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:21,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:21,170 INFO L87 Difference]: Start difference. First operand 214 states and 349 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,222 INFO L93 Difference]: Finished difference Result 598 states and 975 transitions. [2021-12-06 17:15:21,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:21,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,225 INFO L225 Difference]: With dead ends: 598 [2021-12-06 17:15:21,225 INFO L226 Difference]: Without dead ends: 396 [2021-12-06 17:15:21,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:21,226 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 369 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:21,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 469 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:21,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-12-06 17:15:21,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 220. [2021-12-06 17:15:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.6118721461187215) internal successors, (353), 219 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 353 transitions. [2021-12-06 17:15:21,240 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 353 transitions. Word has length 35 [2021-12-06 17:15:21,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:21,240 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 353 transitions. [2021-12-06 17:15:21,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,241 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 353 transitions. [2021-12-06 17:15:21,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:21,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:21,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:21,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:15:21,242 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:21,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:21,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1813505685, now seen corresponding path program 1 times [2021-12-06 17:15:21,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:21,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338117129] [2021-12-06 17:15:21,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338117129] [2021-12-06 17:15:21,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338117129] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:21,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:21,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:21,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43647998] [2021-12-06 17:15:21,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:21,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:21,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:21,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:21,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:21,271 INFO L87 Difference]: Start difference. First operand 220 states and 353 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,332 INFO L93 Difference]: Finished difference Result 751 states and 1203 transitions. [2021-12-06 17:15:21,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:21,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:21,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,335 INFO L225 Difference]: With dead ends: 751 [2021-12-06 17:15:21,335 INFO L226 Difference]: Without dead ends: 544 [2021-12-06 17:15:21,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:21,336 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 365 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:21,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 561 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:21,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-12-06 17:15:21,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 361. [2021-12-06 17:15:21,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.5944444444444446) internal successors, (574), 360 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 574 transitions. [2021-12-06 17:15:21,355 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 574 transitions. Word has length 35 [2021-12-06 17:15:21,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:21,355 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 574 transitions. [2021-12-06 17:15:21,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,355 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 574 transitions. [2021-12-06 17:15:21,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:21,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:21,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:21,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 17:15:21,356 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:21,357 INFO L85 PathProgramCache]: Analyzing trace with hash 8067351, now seen corresponding path program 1 times [2021-12-06 17:15:21,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:21,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756253137] [2021-12-06 17:15:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756253137] [2021-12-06 17:15:21,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756253137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:21,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:21,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:21,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237006662] [2021-12-06 17:15:21,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:21,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:21,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:21,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:21,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:21,382 INFO L87 Difference]: Start difference. First operand 361 states and 574 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,414 INFO L93 Difference]: Finished difference Result 862 states and 1375 transitions. [2021-12-06 17:15:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:21,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:21,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,417 INFO L225 Difference]: With dead ends: 862 [2021-12-06 17:15:21,417 INFO L226 Difference]: Without dead ends: 525 [2021-12-06 17:15:21,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:21,418 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 175 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:21,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 339 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:21,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-12-06 17:15:21,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 523. [2021-12-06 17:15:21,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 522 states have (on average 1.5900383141762453) internal successors, (830), 522 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 830 transitions. [2021-12-06 17:15:21,441 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 830 transitions. Word has length 35 [2021-12-06 17:15:21,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:21,441 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 830 transitions. [2021-12-06 17:15:21,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,442 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 830 transitions. [2021-12-06 17:15:21,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:21,442 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:21,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:21,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 17:15:21,443 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:21,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:21,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2127880731, now seen corresponding path program 1 times [2021-12-06 17:15:21,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:21,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713921142] [2021-12-06 17:15:21,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713921142] [2021-12-06 17:15:21,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713921142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:21,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:21,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:21,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096175200] [2021-12-06 17:15:21,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:21,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:21,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:21,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:21,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:21,468 INFO L87 Difference]: Start difference. First operand 523 states and 830 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,538 INFO L93 Difference]: Finished difference Result 1331 states and 2113 transitions. [2021-12-06 17:15:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:15:21,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:21,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,542 INFO L225 Difference]: With dead ends: 1331 [2021-12-06 17:15:21,543 INFO L226 Difference]: Without dead ends: 825 [2021-12-06 17:15:21,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:21,544 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 477 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:21,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 327 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:21,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2021-12-06 17:15:21,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 523. [2021-12-06 17:15:21,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 522 states have (on average 1.5747126436781609) internal successors, (822), 522 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 822 transitions. [2021-12-06 17:15:21,567 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 822 transitions. Word has length 35 [2021-12-06 17:15:21,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:21,567 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 822 transitions. [2021-12-06 17:15:21,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,568 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 822 transitions. [2021-12-06 17:15:21,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:21,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:21,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:21,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 17:15:21,568 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:21,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:21,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1106812377, now seen corresponding path program 1 times [2021-12-06 17:15:21,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:21,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105306557] [2021-12-06 17:15:21,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105306557] [2021-12-06 17:15:21,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105306557] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:21,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:21,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:21,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38873933] [2021-12-06 17:15:21,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:21,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:21,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:21,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:21,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:21,592 INFO L87 Difference]: Start difference. First operand 523 states and 822 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,655 INFO L93 Difference]: Finished difference Result 1331 states and 2090 transitions. [2021-12-06 17:15:21,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:15:21,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:21,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,660 INFO L225 Difference]: With dead ends: 1331 [2021-12-06 17:15:21,660 INFO L226 Difference]: Without dead ends: 831 [2021-12-06 17:15:21,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:21,661 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 461 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:21,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 316 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:21,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2021-12-06 17:15:21,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 523. [2021-12-06 17:15:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 522 states have (on average 1.5593869731800767) internal successors, (814), 522 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 814 transitions. [2021-12-06 17:15:21,685 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 814 transitions. Word has length 35 [2021-12-06 17:15:21,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:21,685 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 814 transitions. [2021-12-06 17:15:21,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,686 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 814 transitions. [2021-12-06 17:15:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:21,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:21,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:21,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 17:15:21,686 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash 95695127, now seen corresponding path program 1 times [2021-12-06 17:15:21,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:21,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297922141] [2021-12-06 17:15:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297922141] [2021-12-06 17:15:21,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297922141] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:21,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:21,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:21,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723395162] [2021-12-06 17:15:21,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:21,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:21,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:21,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:21,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:21,711 INFO L87 Difference]: Start difference. First operand 523 states and 814 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,782 INFO L93 Difference]: Finished difference Result 1262 states and 1962 transitions. [2021-12-06 17:15:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:15:21,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:21,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,787 INFO L225 Difference]: With dead ends: 1262 [2021-12-06 17:15:21,787 INFO L226 Difference]: Without dead ends: 756 [2021-12-06 17:15:21,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:21,789 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 473 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:21,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [473 Valid, 346 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:21,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2021-12-06 17:15:21,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 571. [2021-12-06 17:15:21,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 570 states have (on average 1.5280701754385966) internal successors, (871), 570 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 871 transitions. [2021-12-06 17:15:21,815 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 871 transitions. Word has length 35 [2021-12-06 17:15:21,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:21,815 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 871 transitions. [2021-12-06 17:15:21,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,815 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 871 transitions. [2021-12-06 17:15:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 17:15:21,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:21,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:21,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 17:15:21,816 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:21,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:21,816 INFO L85 PathProgramCache]: Analyzing trace with hash 353860565, now seen corresponding path program 1 times [2021-12-06 17:15:21,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:21,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931273344] [2021-12-06 17:15:21,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931273344] [2021-12-06 17:15:21,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931273344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:21,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:21,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:21,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084359298] [2021-12-06 17:15:21,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:21,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:21,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:21,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:21,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:21,838 INFO L87 Difference]: Start difference. First operand 571 states and 871 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,883 INFO L93 Difference]: Finished difference Result 1360 states and 2080 transitions. [2021-12-06 17:15:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:21,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 17:15:21,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,887 INFO L225 Difference]: With dead ends: 1360 [2021-12-06 17:15:21,887 INFO L226 Difference]: Without dead ends: 803 [2021-12-06 17:15:21,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:21,888 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 118 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:21,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 308 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:21,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2021-12-06 17:15:21,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 800. [2021-12-06 17:15:21,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.5106382978723405) internal successors, (1207), 799 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1207 transitions. [2021-12-06 17:15:21,918 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1207 transitions. Word has length 35 [2021-12-06 17:15:21,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:21,918 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 1207 transitions. [2021-12-06 17:15:21,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1207 transitions. [2021-12-06 17:15:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 17:15:21,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:21,919 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:21,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 17:15:21,919 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:21,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1873814635, now seen corresponding path program 1 times [2021-12-06 17:15:21,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:21,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006390442] [2021-12-06 17:15:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006390442] [2021-12-06 17:15:21,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006390442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:21,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:21,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:21,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944890213] [2021-12-06 17:15:21,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:21,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:21,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:21,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:21,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:21,943 INFO L87 Difference]: Start difference. First operand 800 states and 1207 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:21,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,992 INFO L93 Difference]: Finished difference Result 1981 states and 3020 transitions. [2021-12-06 17:15:21,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:21,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-12-06 17:15:21,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:21,998 INFO L225 Difference]: With dead ends: 1981 [2021-12-06 17:15:21,998 INFO L226 Difference]: Without dead ends: 1208 [2021-12-06 17:15:21,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:22,000 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 79 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:22,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 408 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-12-06 17:15:22,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1206. [2021-12-06 17:15:22,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1205 states have (on average 1.5161825726141078) internal successors, (1827), 1205 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1827 transitions. [2021-12-06 17:15:22,044 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1827 transitions. Word has length 46 [2021-12-06 17:15:22,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:22,044 INFO L470 AbstractCegarLoop]: Abstraction has 1206 states and 1827 transitions. [2021-12-06 17:15:22,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1827 transitions. [2021-12-06 17:15:22,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 17:15:22,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:22,045 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:22,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 17:15:22,045 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:22,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:22,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1625668141, now seen corresponding path program 1 times [2021-12-06 17:15:22,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:22,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402555200] [2021-12-06 17:15:22,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:22,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:22,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 17:15:22,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:22,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402555200] [2021-12-06 17:15:22,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402555200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:22,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:22,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:22,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525831831] [2021-12-06 17:15:22,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:22,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:22,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:22,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:22,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:22,068 INFO L87 Difference]: Start difference. First operand 1206 states and 1827 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:22,107 INFO L93 Difference]: Finished difference Result 2363 states and 3595 transitions. [2021-12-06 17:15:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:22,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-12-06 17:15:22,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:22,112 INFO L225 Difference]: With dead ends: 2363 [2021-12-06 17:15:22,112 INFO L226 Difference]: Without dead ends: 1184 [2021-12-06 17:15:22,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:22,115 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 177 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:22,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 180 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:22,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2021-12-06 17:15:22,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1184. [2021-12-06 17:15:22,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1183 states have (on average 1.521555367709214) internal successors, (1800), 1183 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1800 transitions. [2021-12-06 17:15:22,176 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1800 transitions. Word has length 46 [2021-12-06 17:15:22,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:22,176 INFO L470 AbstractCegarLoop]: Abstraction has 1184 states and 1800 transitions. [2021-12-06 17:15:22,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1800 transitions. [2021-12-06 17:15:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 17:15:22,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:22,178 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:22,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 17:15:22,178 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:22,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:22,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1361258509, now seen corresponding path program 1 times [2021-12-06 17:15:22,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:22,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351131332] [2021-12-06 17:15:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:22,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:22,204 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:22,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:22,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351131332] [2021-12-06 17:15:22,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351131332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:22,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:22,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:22,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143864502] [2021-12-06 17:15:22,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:22,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:22,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:22,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:22,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:22,206 INFO L87 Difference]: Start difference. First operand 1184 states and 1800 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:22,304 INFO L93 Difference]: Finished difference Result 3020 states and 4639 transitions. [2021-12-06 17:15:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:22,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-12-06 17:15:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:22,315 INFO L225 Difference]: With dead ends: 3020 [2021-12-06 17:15:22,315 INFO L226 Difference]: Without dead ends: 1863 [2021-12-06 17:15:22,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:22,318 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 80 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:22,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 318 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:22,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2021-12-06 17:15:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1861. [2021-12-06 17:15:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1861 states, 1860 states have (on average 1.528494623655914) internal successors, (2843), 1860 states have internal predecessors, (2843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1861 states to 1861 states and 2843 transitions. [2021-12-06 17:15:22,421 INFO L78 Accepts]: Start accepts. Automaton has 1861 states and 2843 transitions. Word has length 47 [2021-12-06 17:15:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:22,421 INFO L470 AbstractCegarLoop]: Abstraction has 1861 states and 2843 transitions. [2021-12-06 17:15:22,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1861 states and 2843 transitions. [2021-12-06 17:15:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 17:15:22,423 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:22,423 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:22,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 17:15:22,423 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:22,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:22,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1966615625, now seen corresponding path program 1 times [2021-12-06 17:15:22,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:22,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285536103] [2021-12-06 17:15:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:22,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:22,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:22,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285536103] [2021-12-06 17:15:22,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285536103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:22,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:22,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:22,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560807179] [2021-12-06 17:15:22,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:22,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:22,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:22,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:22,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:22,450 INFO L87 Difference]: Start difference. First operand 1861 states and 2843 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:22,560 INFO L93 Difference]: Finished difference Result 5004 states and 7733 transitions. [2021-12-06 17:15:22,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:22,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-12-06 17:15:22,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:22,574 INFO L225 Difference]: With dead ends: 5004 [2021-12-06 17:15:22,574 INFO L226 Difference]: Without dead ends: 3172 [2021-12-06 17:15:22,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:22,577 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 84 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:22,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 379 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:22,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2021-12-06 17:15:22,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3170. [2021-12-06 17:15:22,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 3169 states have (on average 1.5392868412748502) internal successors, (4878), 3169 states have internal predecessors, (4878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4878 transitions. [2021-12-06 17:15:22,701 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4878 transitions. Word has length 48 [2021-12-06 17:15:22,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:22,701 INFO L470 AbstractCegarLoop]: Abstraction has 3170 states and 4878 transitions. [2021-12-06 17:15:22,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4878 transitions. [2021-12-06 17:15:22,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 17:15:22,703 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:22,703 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:22,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 17:15:22,703 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:22,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:22,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2080205177, now seen corresponding path program 1 times [2021-12-06 17:15:22,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:22,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976741970] [2021-12-06 17:15:22,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:22,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 17:15:22,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:22,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976741970] [2021-12-06 17:15:22,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976741970] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:22,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:22,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:22,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601061261] [2021-12-06 17:15:22,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:22,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:22,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:22,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:22,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:22,718 INFO L87 Difference]: Start difference. First operand 3170 states and 4878 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:22,825 INFO L93 Difference]: Finished difference Result 6289 states and 9697 transitions. [2021-12-06 17:15:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:22,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-12-06 17:15:22,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:22,839 INFO L225 Difference]: With dead ends: 6289 [2021-12-06 17:15:22,840 INFO L226 Difference]: Without dead ends: 3148 [2021-12-06 17:15:22,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:22,843 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 174 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:22,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 179 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2021-12-06 17:15:22,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3148. [2021-12-06 17:15:22,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.5417858277724816) internal successors, (4852), 3147 states have internal predecessors, (4852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 4852 transitions. [2021-12-06 17:15:22,976 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 4852 transitions. Word has length 48 [2021-12-06 17:15:22,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:22,977 INFO L470 AbstractCegarLoop]: Abstraction has 3148 states and 4852 transitions. [2021-12-06 17:15:22,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 4852 transitions. [2021-12-06 17:15:22,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 17:15:22,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:22,978 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:22,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 17:15:22,978 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:22,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:22,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1092103999, now seen corresponding path program 1 times [2021-12-06 17:15:22,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:22,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441653191] [2021-12-06 17:15:22,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:22,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:23,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:23,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441653191] [2021-12-06 17:15:23,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441653191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:23,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:23,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:23,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996328271] [2021-12-06 17:15:23,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:23,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:23,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:23,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:23,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:23,001 INFO L87 Difference]: Start difference. First operand 3148 states and 4852 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:23,184 INFO L93 Difference]: Finished difference Result 8037 states and 12429 transitions. [2021-12-06 17:15:23,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:23,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-12-06 17:15:23,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:23,201 INFO L225 Difference]: With dead ends: 8037 [2021-12-06 17:15:23,201 INFO L226 Difference]: Without dead ends: 4125 [2021-12-06 17:15:23,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:23,206 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 396 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:23,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 304 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:23,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4125 states. [2021-12-06 17:15:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4125 to 4125. [2021-12-06 17:15:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 4124 states have (on average 1.532007759456838) internal successors, (6318), 4124 states have internal predecessors, (6318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:23,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 6318 transitions. [2021-12-06 17:15:23,379 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 6318 transitions. Word has length 49 [2021-12-06 17:15:23,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:23,379 INFO L470 AbstractCegarLoop]: Abstraction has 4125 states and 6318 transitions. [2021-12-06 17:15:23,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:23,379 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 6318 transitions. [2021-12-06 17:15:23,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-06 17:15:23,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:23,382 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:23,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 17:15:23,382 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:23,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:23,383 INFO L85 PathProgramCache]: Analyzing trace with hash 705446642, now seen corresponding path program 1 times [2021-12-06 17:15:23,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:23,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136288814] [2021-12-06 17:15:23,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:23,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:23,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:23,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136288814] [2021-12-06 17:15:23,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136288814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:23,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:23,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:15:23,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075781377] [2021-12-06 17:15:23,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:23,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:23,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:23,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:23,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:23,420 INFO L87 Difference]: Start difference. First operand 4125 states and 6318 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:23,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:23,725 INFO L93 Difference]: Finished difference Result 10492 states and 15978 transitions. [2021-12-06 17:15:23,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:15:23,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-12-06 17:15:23,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:23,750 INFO L225 Difference]: With dead ends: 10492 [2021-12-06 17:15:23,750 INFO L226 Difference]: Without dead ends: 6390 [2021-12-06 17:15:23,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:15:23,755 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 675 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:23,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 505 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:23,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6390 states. [2021-12-06 17:15:23,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6390 to 4812. [2021-12-06 17:15:23,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 4811 states have (on average 1.5005196424859697) internal successors, (7219), 4811 states have internal predecessors, (7219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:23,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 7219 transitions. [2021-12-06 17:15:23,943 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 7219 transitions. Word has length 55 [2021-12-06 17:15:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:23,943 INFO L470 AbstractCegarLoop]: Abstraction has 4812 states and 7219 transitions. [2021-12-06 17:15:23,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:23,943 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 7219 transitions. [2021-12-06 17:15:23,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-06 17:15:23,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:23,945 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:23,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 17:15:23,946 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:23,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:23,946 INFO L85 PathProgramCache]: Analyzing trace with hash -153478858, now seen corresponding path program 1 times [2021-12-06 17:15:23,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:23,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590003960] [2021-12-06 17:15:23,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:23,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:23,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:23,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590003960] [2021-12-06 17:15:23,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590003960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:23,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:23,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:23,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484397566] [2021-12-06 17:15:23,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:23,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:23,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:23,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:23,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:23,969 INFO L87 Difference]: Start difference. First operand 4812 states and 7219 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:24,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:24,141 INFO L93 Difference]: Finished difference Result 9971 states and 14928 transitions. [2021-12-06 17:15:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:24,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-12-06 17:15:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:24,149 INFO L225 Difference]: With dead ends: 9971 [2021-12-06 17:15:24,149 INFO L226 Difference]: Without dead ends: 5188 [2021-12-06 17:15:24,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:24,153 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 126 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:24,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 309 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:24,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5188 states. [2021-12-06 17:15:24,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5188 to 5156. [2021-12-06 17:15:24,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 1.4533462657613967) internal successors, (7492), 5155 states have internal predecessors, (7492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:24,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 7492 transitions. [2021-12-06 17:15:24,343 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 7492 transitions. Word has length 89 [2021-12-06 17:15:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:24,343 INFO L470 AbstractCegarLoop]: Abstraction has 5156 states and 7492 transitions. [2021-12-06 17:15:24,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:24,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 7492 transitions. [2021-12-06 17:15:24,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-06 17:15:24,346 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:24,346 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:24,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 17:15:24,347 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:24,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:24,347 INFO L85 PathProgramCache]: Analyzing trace with hash -278696132, now seen corresponding path program 1 times [2021-12-06 17:15:24,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:24,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016887780] [2021-12-06 17:15:24,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:24,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:24,367 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:24,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:24,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016887780] [2021-12-06 17:15:24,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016887780] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:24,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:24,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:24,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431439675] [2021-12-06 17:15:24,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:24,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:24,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:24,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:24,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:24,369 INFO L87 Difference]: Start difference. First operand 5156 states and 7492 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:24,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:24,604 INFO L93 Difference]: Finished difference Result 10825 states and 15694 transitions. [2021-12-06 17:15:24,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:24,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-12-06 17:15:24,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:24,616 INFO L225 Difference]: With dead ends: 10825 [2021-12-06 17:15:24,616 INFO L226 Difference]: Without dead ends: 5710 [2021-12-06 17:15:24,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:24,624 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 125 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:24,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 308 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:24,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2021-12-06 17:15:24,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5662. [2021-12-06 17:15:24,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5662 states, 5661 states have (on average 1.4073485249955837) internal successors, (7967), 5661 states have internal predecessors, (7967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5662 states to 5662 states and 7967 transitions. [2021-12-06 17:15:24,871 INFO L78 Accepts]: Start accepts. Automaton has 5662 states and 7967 transitions. Word has length 90 [2021-12-06 17:15:24,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:24,871 INFO L470 AbstractCegarLoop]: Abstraction has 5662 states and 7967 transitions. [2021-12-06 17:15:24,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5662 states and 7967 transitions. [2021-12-06 17:15:24,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 17:15:24,875 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:24,875 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:24,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 17:15:24,875 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:24,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:24,876 INFO L85 PathProgramCache]: Analyzing trace with hash -579083688, now seen corresponding path program 1 times [2021-12-06 17:15:24,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:24,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182935114] [2021-12-06 17:15:24,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:24,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:24,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:24,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182935114] [2021-12-06 17:15:24,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182935114] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:24,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:24,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:24,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098736243] [2021-12-06 17:15:24,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:24,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:24,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:24,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:24,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:24,896 INFO L87 Difference]: Start difference. First operand 5662 states and 7967 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:25,099 INFO L93 Difference]: Finished difference Result 11644 states and 16398 transitions. [2021-12-06 17:15:25,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:25,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-12-06 17:15:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:25,108 INFO L225 Difference]: With dead ends: 11644 [2021-12-06 17:15:25,108 INFO L226 Difference]: Without dead ends: 6043 [2021-12-06 17:15:25,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:25,114 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 121 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:25,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 305 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:25,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2021-12-06 17:15:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 5432. [2021-12-06 17:15:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 1.3487387221506169) internal successors, (7325), 5431 states have internal predecessors, (7325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 7325 transitions. [2021-12-06 17:15:25,324 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 7325 transitions. Word has length 91 [2021-12-06 17:15:25,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:25,325 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 7325 transitions. [2021-12-06 17:15:25,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:25,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 7325 transitions. [2021-12-06 17:15:25,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 17:15:25,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:25,328 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:25,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 17:15:25,328 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:25,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:25,329 INFO L85 PathProgramCache]: Analyzing trace with hash 61290010, now seen corresponding path program 1 times [2021-12-06 17:15:25,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:25,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007779620] [2021-12-06 17:15:25,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:25,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:25,355 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 17:15:25,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:25,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007779620] [2021-12-06 17:15:25,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007779620] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:25,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:25,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:25,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578496051] [2021-12-06 17:15:25,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:25,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:25,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:25,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:25,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:25,357 INFO L87 Difference]: Start difference. First operand 5432 states and 7325 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:25,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:25,681 INFO L93 Difference]: Finished difference Result 10192 states and 13689 transitions. [2021-12-06 17:15:25,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:25,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-06 17:15:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:25,687 INFO L225 Difference]: With dead ends: 10192 [2021-12-06 17:15:25,687 INFO L226 Difference]: Without dead ends: 5247 [2021-12-06 17:15:25,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:25,692 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 438 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:25,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 386 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:25,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2021-12-06 17:15:25,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 5133. [2021-12-06 17:15:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 1.3068978955572876) internal successors, (6707), 5132 states have internal predecessors, (6707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 6707 transitions. [2021-12-06 17:15:25,938 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 6707 transitions. Word has length 92 [2021-12-06 17:15:25,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:25,939 INFO L470 AbstractCegarLoop]: Abstraction has 5133 states and 6707 transitions. [2021-12-06 17:15:25,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:25,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 6707 transitions. [2021-12-06 17:15:25,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-06 17:15:25,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:25,946 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:25,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 17:15:25,946 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:25,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:25,947 INFO L85 PathProgramCache]: Analyzing trace with hash 355597572, now seen corresponding path program 1 times [2021-12-06 17:15:25,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:25,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819061977] [2021-12-06 17:15:25,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:25,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:25,970 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-06 17:15:25,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:25,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819061977] [2021-12-06 17:15:25,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819061977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:25,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:25,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:25,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429049466] [2021-12-06 17:15:25,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:25,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:25,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:25,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:25,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:25,972 INFO L87 Difference]: Start difference. First operand 5133 states and 6707 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:26,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:26,201 INFO L93 Difference]: Finished difference Result 9800 states and 12790 transitions. [2021-12-06 17:15:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:26,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-06 17:15:26,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:26,207 INFO L225 Difference]: With dead ends: 9800 [2021-12-06 17:15:26,207 INFO L226 Difference]: Without dead ends: 5079 [2021-12-06 17:15:26,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:26,212 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 34 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:26,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 297 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:26,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5079 states. [2021-12-06 17:15:26,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5079 to 5079. [2021-12-06 17:15:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5079 states, 5078 states have (on average 1.2999212288302482) internal successors, (6601), 5078 states have internal predecessors, (6601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5079 states to 5079 states and 6601 transitions. [2021-12-06 17:15:26,427 INFO L78 Accepts]: Start accepts. Automaton has 5079 states and 6601 transitions. Word has length 121 [2021-12-06 17:15:26,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:26,427 INFO L470 AbstractCegarLoop]: Abstraction has 5079 states and 6601 transitions. [2021-12-06 17:15:26,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:26,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5079 states and 6601 transitions. [2021-12-06 17:15:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-06 17:15:26,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:26,433 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:26,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 17:15:26,433 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:26,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1642609420, now seen corresponding path program 1 times [2021-12-06 17:15:26,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:26,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118065264] [2021-12-06 17:15:26,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:26,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:26,458 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-06 17:15:26,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:26,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118065264] [2021-12-06 17:15:26,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118065264] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:26,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:26,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:26,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767136156] [2021-12-06 17:15:26,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:26,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:26,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:26,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:26,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:26,459 INFO L87 Difference]: Start difference. First operand 5079 states and 6601 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:26,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:26,664 INFO L93 Difference]: Finished difference Result 9033 states and 11757 transitions. [2021-12-06 17:15:26,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:26,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-12-06 17:15:26,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:26,669 INFO L225 Difference]: With dead ends: 9033 [2021-12-06 17:15:26,669 INFO L226 Difference]: Without dead ends: 4995 [2021-12-06 17:15:26,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:26,672 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 300 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:26,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 308 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:26,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4995 states. [2021-12-06 17:15:26,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4995 to 4993. [2021-12-06 17:15:26,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4993 states, 4992 states have (on average 1.2772435897435896) internal successors, (6376), 4992 states have internal predecessors, (6376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:26,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4993 states to 4993 states and 6376 transitions. [2021-12-06 17:15:26,874 INFO L78 Accepts]: Start accepts. Automaton has 4993 states and 6376 transitions. Word has length 134 [2021-12-06 17:15:26,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:26,874 INFO L470 AbstractCegarLoop]: Abstraction has 4993 states and 6376 transitions. [2021-12-06 17:15:26,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:26,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4993 states and 6376 transitions. [2021-12-06 17:15:26,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-06 17:15:26,879 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:26,880 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:26,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 17:15:26,880 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:26,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:26,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1018384228, now seen corresponding path program 1 times [2021-12-06 17:15:26,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:26,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524500848] [2021-12-06 17:15:26,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:26,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:26,901 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 17:15:26,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:26,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524500848] [2021-12-06 17:15:26,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524500848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:26,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:26,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:26,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939869298] [2021-12-06 17:15:26,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:26,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:26,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:26,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:26,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:26,902 INFO L87 Difference]: Start difference. First operand 4993 states and 6376 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:27,094 INFO L93 Difference]: Finished difference Result 9567 states and 12204 transitions. [2021-12-06 17:15:27,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:27,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-12-06 17:15:27,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:27,098 INFO L225 Difference]: With dead ends: 9567 [2021-12-06 17:15:27,099 INFO L226 Difference]: Without dead ends: 4993 [2021-12-06 17:15:27,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:27,103 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 25 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:27,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 296 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:27,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2021-12-06 17:15:27,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4953. [2021-12-06 17:15:27,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4953 states, 4952 states have (on average 1.2710016155088852) internal successors, (6294), 4952 states have internal predecessors, (6294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:27,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4953 states to 4953 states and 6294 transitions. [2021-12-06 17:15:27,305 INFO L78 Accepts]: Start accepts. Automaton has 4953 states and 6294 transitions. Word has length 140 [2021-12-06 17:15:27,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:27,305 INFO L470 AbstractCegarLoop]: Abstraction has 4953 states and 6294 transitions. [2021-12-06 17:15:27,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:27,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4953 states and 6294 transitions. [2021-12-06 17:15:27,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-06 17:15:27,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:27,310 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:27,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 17:15:27,310 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:27,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:27,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1930869354, now seen corresponding path program 1 times [2021-12-06 17:15:27,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:27,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297169868] [2021-12-06 17:15:27,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:27,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 17:15:27,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:27,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297169868] [2021-12-06 17:15:27,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297169868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:27,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:27,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:27,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391218430] [2021-12-06 17:15:27,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:27,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:27,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:27,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:27,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:27,333 INFO L87 Difference]: Start difference. First operand 4953 states and 6294 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:27,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:27,525 INFO L93 Difference]: Finished difference Result 9515 states and 12082 transitions. [2021-12-06 17:15:27,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:27,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-12-06 17:15:27,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:27,529 INFO L225 Difference]: With dead ends: 9515 [2021-12-06 17:15:27,529 INFO L226 Difference]: Without dead ends: 4962 [2021-12-06 17:15:27,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:27,533 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 21 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:27,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 295 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:27,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2021-12-06 17:15:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 4922. [2021-12-06 17:15:27,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4922 states, 4921 states have (on average 1.2643771591140012) internal successors, (6222), 4921 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4922 states to 4922 states and 6222 transitions. [2021-12-06 17:15:27,786 INFO L78 Accepts]: Start accepts. Automaton has 4922 states and 6222 transitions. Word has length 140 [2021-12-06 17:15:27,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:27,786 INFO L470 AbstractCegarLoop]: Abstraction has 4922 states and 6222 transitions. [2021-12-06 17:15:27,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4922 states and 6222 transitions. [2021-12-06 17:15:27,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-06 17:15:27,792 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:27,792 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:27,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 17:15:27,793 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:27,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:27,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1655542827, now seen corresponding path program 1 times [2021-12-06 17:15:27,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:27,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440937697] [2021-12-06 17:15:27,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:27,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:27,821 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 17:15:27,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:27,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440937697] [2021-12-06 17:15:27,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440937697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:27,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:27,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:27,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558398419] [2021-12-06 17:15:27,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:27,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:27,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:27,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:27,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:27,823 INFO L87 Difference]: Start difference. First operand 4922 states and 6222 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:28,035 INFO L93 Difference]: Finished difference Result 8000 states and 10141 transitions. [2021-12-06 17:15:28,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:28,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2021-12-06 17:15:28,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:28,039 INFO L225 Difference]: With dead ends: 8000 [2021-12-06 17:15:28,039 INFO L226 Difference]: Without dead ends: 3479 [2021-12-06 17:15:28,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:28,043 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 277 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:28,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 287 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2021-12-06 17:15:28,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3477. [2021-12-06 17:15:28,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 3476 states have (on average 1.2361910241657077) internal successors, (4297), 3476 states have internal predecessors, (4297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4297 transitions. [2021-12-06 17:15:28,180 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4297 transitions. Word has length 144 [2021-12-06 17:15:28,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:28,180 INFO L470 AbstractCegarLoop]: Abstraction has 3477 states and 4297 transitions. [2021-12-06 17:15:28,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4297 transitions. [2021-12-06 17:15:28,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-06 17:15:28,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:28,183 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:28,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 17:15:28,183 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:28,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:28,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1691520611, now seen corresponding path program 1 times [2021-12-06 17:15:28,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:28,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390235770] [2021-12-06 17:15:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:28,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:28,207 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-06 17:15:28,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:28,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390235770] [2021-12-06 17:15:28,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390235770] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:28,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:28,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:28,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510473953] [2021-12-06 17:15:28,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:28,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:28,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:28,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:28,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:28,209 INFO L87 Difference]: Start difference. First operand 3477 states and 4297 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:28,349 INFO L93 Difference]: Finished difference Result 5637 states and 6973 transitions. [2021-12-06 17:15:28,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:28,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2021-12-06 17:15:28,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:28,351 INFO L225 Difference]: With dead ends: 5637 [2021-12-06 17:15:28,351 INFO L226 Difference]: Without dead ends: 2242 [2021-12-06 17:15:28,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:28,354 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 279 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:28,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 272 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:28,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2021-12-06 17:15:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2240. [2021-12-06 17:15:28,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 2239 states have (on average 1.1991960696739616) internal successors, (2685), 2239 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 2685 transitions. [2021-12-06 17:15:28,451 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 2685 transitions. Word has length 144 [2021-12-06 17:15:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:28,451 INFO L470 AbstractCegarLoop]: Abstraction has 2240 states and 2685 transitions. [2021-12-06 17:15:28,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 2685 transitions. [2021-12-06 17:15:28,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-06 17:15:28,453 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:28,453 INFO L514 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:28,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 17:15:28,453 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:28,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:28,453 INFO L85 PathProgramCache]: Analyzing trace with hash -52842861, now seen corresponding path program 1 times [2021-12-06 17:15:28,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:28,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106559540] [2021-12-06 17:15:28,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:28,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-06 17:15:28,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:28,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106559540] [2021-12-06 17:15:28,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106559540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:28,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:28,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:28,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605151061] [2021-12-06 17:15:28,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:28,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:28,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:28,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:28,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:28,486 INFO L87 Difference]: Start difference. First operand 2240 states and 2685 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:28,595 INFO L93 Difference]: Finished difference Result 4042 states and 4878 transitions. [2021-12-06 17:15:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:28,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2021-12-06 17:15:28,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:28,598 INFO L225 Difference]: With dead ends: 4042 [2021-12-06 17:15:28,598 INFO L226 Difference]: Without dead ends: 2178 [2021-12-06 17:15:28,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:28,600 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 1 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:28,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 296 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:28,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2021-12-06 17:15:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 2110. [2021-12-06 17:15:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2110 states, 2109 states have (on average 1.188715030820294) internal successors, (2507), 2109 states have internal predecessors, (2507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 2507 transitions. [2021-12-06 17:15:28,687 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 2507 transitions. Word has length 183 [2021-12-06 17:15:28,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:28,687 INFO L470 AbstractCegarLoop]: Abstraction has 2110 states and 2507 transitions. [2021-12-06 17:15:28,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 2507 transitions. [2021-12-06 17:15:28,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-06 17:15:28,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:28,689 INFO L514 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:28,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 17:15:28,689 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:28,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:28,689 INFO L85 PathProgramCache]: Analyzing trace with hash -887750668, now seen corresponding path program 1 times [2021-12-06 17:15:28,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:28,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422934115] [2021-12-06 17:15:28,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:28,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-06 17:15:28,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:28,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422934115] [2021-12-06 17:15:28,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422934115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:28,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:28,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:28,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028170719] [2021-12-06 17:15:28,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:28,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:28,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:28,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:28,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:28,725 INFO L87 Difference]: Start difference. First operand 2110 states and 2507 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:28,848 INFO L93 Difference]: Finished difference Result 4523 states and 5412 transitions. [2021-12-06 17:15:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:28,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2021-12-06 17:15:28,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:28,850 INFO L225 Difference]: With dead ends: 4523 [2021-12-06 17:15:28,850 INFO L226 Difference]: Without dead ends: 2783 [2021-12-06 17:15:28,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:28,852 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 141 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:28,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 292 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:28,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2021-12-06 17:15:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2404. [2021-12-06 17:15:28,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2404 states, 2403 states have (on average 1.1747815230961298) internal successors, (2823), 2403 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 2823 transitions. [2021-12-06 17:15:28,946 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 2823 transitions. Word has length 190 [2021-12-06 17:15:28,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:28,946 INFO L470 AbstractCegarLoop]: Abstraction has 2404 states and 2823 transitions. [2021-12-06 17:15:28,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:28,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 2823 transitions. [2021-12-06 17:15:28,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-06 17:15:28,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:28,948 INFO L514 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:28,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 17:15:28,948 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:28,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:28,948 INFO L85 PathProgramCache]: Analyzing trace with hash -867870868, now seen corresponding path program 1 times [2021-12-06 17:15:28,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:28,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278709192] [2021-12-06 17:15:28,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:28,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:15:28,963 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:15:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:15:29,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:15:29,032 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 17:15:29,033 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:15:29,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 17:15:29,038 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:29,040 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:15:29,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:15:29 BoogieIcfgContainer [2021-12-06 17:15:29,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:15:29,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:15:29,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:15:29,194 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:15:29,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:20" (3/4) ... [2021-12-06 17:15:29,196 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 17:15:29,314 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:15:29,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:15:29,314 INFO L158 Benchmark]: Toolchain (without parser) took 9706.62ms. Allocated memory was 119.5MB in the beginning and 916.5MB in the end (delta: 796.9MB). Free memory was 81.4MB in the beginning and 341.5MB in the end (delta: -260.1MB). Peak memory consumption was 537.4MB. Max. memory is 16.1GB. [2021-12-06 17:15:29,315 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:15:29,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.93ms. Allocated memory is still 119.5MB. Free memory was 81.3MB in the beginning and 91.9MB in the end (delta: -10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 17:15:29,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.37ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:15:29,315 INFO L158 Benchmark]: Boogie Preprocessor took 24.34ms. Allocated memory is still 119.5MB. Free memory was 89.8MB in the beginning and 87.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:15:29,315 INFO L158 Benchmark]: RCFGBuilder took 380.36ms. Allocated memory is still 119.5MB. Free memory was 87.8MB in the beginning and 68.7MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-06 17:15:29,316 INFO L158 Benchmark]: TraceAbstraction took 8916.99ms. Allocated memory was 119.5MB in the beginning and 916.5MB in the end (delta: 796.9MB). Free memory was 67.8MB in the beginning and 371.9MB in the end (delta: -304.1MB). Peak memory consumption was 493.4MB. Max. memory is 16.1GB. [2021-12-06 17:15:29,316 INFO L158 Benchmark]: Witness Printer took 120.20ms. Allocated memory is still 916.5MB. Free memory was 371.9MB in the beginning and 341.5MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-12-06 17:15:29,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.93ms. Allocated memory is still 119.5MB. Free memory was 81.3MB in the beginning and 91.9MB in the end (delta: -10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.37ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.34ms. Allocated memory is still 119.5MB. Free memory was 89.8MB in the beginning and 87.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.36ms. Allocated memory is still 119.5MB. Free memory was 87.8MB in the beginning and 68.7MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8916.99ms. Allocated memory was 119.5MB in the beginning and 916.5MB in the end (delta: 796.9MB). Free memory was 67.8MB in the beginning and 371.9MB in the end (delta: -304.1MB). Peak memory consumption was 493.4MB. Max. memory is 16.1GB. * Witness Printer took 120.20ms. Allocated memory is still 916.5MB. Free memory was 371.9MB in the beginning and 341.5MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L28] int c ; [L29] int c_t ; [L30] int c_req_up ; [L31] int p_in ; [L32] int p_out ; [L33] int wl_st ; [L34] int c1_st ; [L35] int c2_st ; [L36] int wb_st ; [L37] int r_st ; [L38] int wl_i ; [L39] int c1_i ; [L40] int c2_i ; [L41] int wb_i ; [L42] int r_i ; [L43] int wl_pc ; [L44] int c1_pc ; [L45] int c2_pc ; [L46] int wb_pc ; [L47] int e_e ; [L48] int e_f ; [L49] int e_g ; [L50] int e_c ; [L51] int e_p_in ; [L52] int e_wl ; [L58] int d ; [L59] int data ; [L60] int processed ; [L61] static int t_b ; VAL [c=0, c1_i=0, c1_pc=0, c1_st=0, c2_i=0, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=0, e_e=0, e_f=0, e_g=0, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=0, wb_pc=0, wb_st=0, wl_i=0, wl_pc=0, wl_st=0] [L689] int __retres1 ; [L693] e_wl = 2 [L694] e_c = e_wl [L695] e_g = e_c [L696] e_f = e_g [L697] e_e = e_f [L698] wl_pc = 0 [L699] c1_pc = 0 [L700] c2_pc = 0 [L701] wb_pc = 0 [L702] wb_i = 1 [L703] c2_i = wb_i [L704] c1_i = c2_i [L705] wl_i = c1_i [L706] r_i = 0 [L707] c_req_up = 0 [L708] d = 0 [L709] c = 0 [L710] CALL start_simulation() [L400] int kernel_st ; [L403] kernel_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L404] COND FALSE !((int )c_req_up == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L415] COND TRUE (int )wl_i == 1 [L416] wl_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L420] COND TRUE (int )c1_i == 1 [L421] c1_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L425] COND TRUE (int )c2_i == 1 [L426] c2_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L430] COND TRUE (int )wb_i == 1 [L431] wb_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L435] COND FALSE !((int )r_i == 1) [L438] r_st = 2 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L440] COND FALSE !((int )e_f == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L445] COND FALSE !((int )e_g == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L450] COND FALSE !((int )e_e == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L455] COND FALSE !((int )e_c == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L460] COND FALSE !((int )e_wl == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L465] COND FALSE !((int )wl_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L473] COND FALSE !((int )wl_pc == 2) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L483] COND FALSE !((int )c1_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L492] COND FALSE !((int )c2_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L501] COND FALSE !((int )wb_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L510] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L515] COND FALSE !((int )e_e == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L520] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L525] COND FALSE !((int )e_g == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L530] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L535] COND FALSE !((int )e_wl == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L541] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L544] kernel_st = 1 [L545] CALL eval() [L286] int tmp ; [L287] int tmp___0 ; [L288] int tmp___1 ; [L289] int tmp___2 ; [L290] int tmp___3 ; VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L294] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L296] COND TRUE (int )wl_st == 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L317] COND TRUE (int )wl_st == 0 [L319] tmp = __VERIFIER_nondet_int() [L321] COND TRUE \read(tmp) [L323] wl_st = 1 [L324] CALL write_loop() [L63] int t ; VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=1] [L66] COND TRUE (int )wl_pc == 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=1] [L80] wl_st = 2 [L81] wl_pc = 1 [L82] e_wl = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L324] RET write_loop() [L332] COND TRUE (int )c1_st == 0 [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___0) [L338] c1_st = 1 [L339] CALL compute1() [L137] COND TRUE (int )c1_pc == 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=1, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L148] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=0, c1_st=1, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L150] c1_st = 2 [L151] c1_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L339] RET compute1() [L347] COND TRUE (int )c2_st == 0 [L349] tmp___1 = __VERIFIER_nondet_int() [L351] COND TRUE \read(tmp___1) [L353] c2_st = 1 [L354] CALL compute2() [L182] COND TRUE (int )c2_pc == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=0, c2_st=1, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L193] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=0, c2_st=1, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L195] c2_st = 2 [L196] c2_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L354] RET compute2() [L362] COND TRUE (int )wb_st == 0 [L364] tmp___2 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___2) [L368] wb_st = 1 [L369] CALL write_back() [L227] COND TRUE (int )wb_pc == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=1, wl_i=1, wl_pc=1, wl_st=2] [L238] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=1, wl_i=1, wl_pc=1, wl_st=2] [L240] wb_st = 2 [L241] wb_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L369] RET write_back() [L377] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=-2, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L294] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=-2, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L296] COND FALSE !((int )wl_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=-2, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L299] COND FALSE !((int )c1_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=-2, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L302] COND FALSE !((int )c2_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=-2, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L305] COND FALSE !((int )wb_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=-2, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L308] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=-2, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L545] RET eval() [L547] kernel_st = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L548] COND FALSE !((int )c_req_up == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L559] kernel_st = 3 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L560] COND FALSE !((int )e_f == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L565] COND FALSE !((int )e_g == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L570] COND FALSE !((int )e_e == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L575] COND FALSE !((int )e_c == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L580] COND TRUE (int )e_wl == 0 [L581] e_wl = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L585] COND TRUE (int )wl_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L586] COND TRUE (int )e_wl == 1 [L587] wl_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L603] COND TRUE (int )c1_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L604] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L612] COND TRUE (int )c2_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L613] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L621] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L622] COND FALSE !((int )e_g == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L630] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L635] COND FALSE !((int )e_e == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L640] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L645] COND FALSE !((int )e_g == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L650] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L655] COND TRUE (int )e_wl == 1 [L656] e_wl = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L660] COND TRUE (int )wl_st == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L541] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L544] kernel_st = 1 [L545] CALL eval() [L286] int tmp ; [L287] int tmp___0 ; [L288] int tmp___1 ; [L289] int tmp___2 ; [L290] int tmp___3 ; VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L294] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L296] COND TRUE (int )wl_st == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L317] COND TRUE (int )wl_st == 0 [L319] tmp = __VERIFIER_nondet_int() [L321] COND TRUE \read(tmp) [L323] wl_st = 1 [L324] CALL write_loop() [L63] int t ; VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L66] COND FALSE !((int )wl_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L69] COND FALSE !((int )wl_pc == 2) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L72] COND TRUE (int )wl_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L87] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L89] t = d [L90] data = d [L91] processed = 0 [L92] e_f = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L93] COND TRUE (int )c1_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L94] COND TRUE (int )e_f == 1 [L95] c1_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L102] COND TRUE (int )c2_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L103] COND TRUE (int )e_f == 1 [L104] c2_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L111] e_f = 2 [L112] wl_st = 2 [L113] wl_pc = 2 [L114] t_b = t VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L324] RET write_loop() [L332] COND TRUE (int )c1_st == 0 [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___0) [L338] c1_st = 1 [L339] CALL compute1() [L137] COND FALSE !((int )c1_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L140] COND TRUE (int )c1_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L155] COND TRUE ! processed [L156] data += 1 [L157] e_g = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L158] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L159] COND TRUE (int )e_g == 1 [L160] wb_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L167] e_g = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L148] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L150] c1_st = 2 [L151] c1_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L339] RET compute1() [L347] COND TRUE (int )c2_st == 0 [L349] tmp___1 = __VERIFIER_nondet_int() [L351] COND TRUE \read(tmp___1) [L353] c2_st = 1 [L354] CALL compute2() [L182] COND FALSE !((int )c2_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L185] COND TRUE (int )c2_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L200] COND TRUE ! processed [L201] data += 1 [L202] e_g = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L203] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L204] COND TRUE (int )e_g == 1 [L205] wb_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L212] e_g = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L193] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L195] c2_st = 2 [L196] c2_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L354] RET compute2() [L362] COND TRUE (int )wb_st == 0 [L364] tmp___2 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___2) [L368] wb_st = 1 [L369] CALL write_back() [L227] COND FALSE !((int )wb_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L230] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L245] c_t = data [L246] c_req_up = 1 [L247] processed = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L238] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L240] wb_st = 2 [L241] wb_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L369] RET write_back() [L377] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-3, tmp___2=4, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L294] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-3, tmp___2=4, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L296] COND FALSE !((int )wl_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-3, tmp___2=4, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L299] COND FALSE !((int )c1_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-3, tmp___2=4, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L302] COND FALSE !((int )c2_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-3, tmp___2=4, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L305] COND FALSE !((int )wb_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-3, tmp___2=4, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L308] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=1, tmp___1=-3, tmp___2=4, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L545] RET eval() [L547] kernel_st = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L548] COND TRUE (int )c_req_up == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L549] COND TRUE c != c_t [L550] c = c_t [L551] e_c = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L555] c_req_up = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L559] kernel_st = 3 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L560] COND FALSE !((int )e_f == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L565] COND FALSE !((int )e_g == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L570] COND FALSE !((int )e_e == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L575] COND TRUE (int )e_c == 0 [L576] e_c = 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L580] COND FALSE !((int )e_wl == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L585] COND FALSE !((int )wl_pc == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L593] COND TRUE (int )wl_pc == 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L594] COND FALSE !((int )e_e == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L603] COND TRUE (int )c1_pc == 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L604] COND FALSE !((int )e_f == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L612] COND TRUE (int )c2_pc == 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L613] COND FALSE !((int )e_f == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L621] COND TRUE (int )wb_pc == 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L622] COND FALSE !((int )e_g == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L630] COND TRUE (int )e_c == 1 [L631] r_st = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L635] COND FALSE !((int )e_e == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L640] COND FALSE !((int )e_f == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L645] COND FALSE !((int )e_g == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L650] COND TRUE (int )e_c == 1 [L651] e_c = 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L655] COND FALSE !((int )e_wl == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L660] COND FALSE !((int )wl_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L663] COND FALSE !((int )c1_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L666] COND FALSE !((int )c2_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L669] COND FALSE !((int )wb_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L672] COND TRUE (int )r_st == 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L541] COND TRUE 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L544] kernel_st = 1 [L545] CALL eval() [L286] int tmp ; [L287] int tmp___0 ; [L288] int tmp___1 ; [L289] int tmp___2 ; [L290] int tmp___3 ; VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L294] COND TRUE 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L296] COND FALSE !((int )wl_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L299] COND FALSE !((int )c1_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L302] COND FALSE !((int )c2_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L305] COND FALSE !((int )wb_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L308] COND TRUE (int )r_st == 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L317] COND FALSE !((int )wl_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L332] COND FALSE !((int )c1_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L347] COND FALSE !((int )c2_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L362] COND FALSE !((int )wb_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L377] COND TRUE (int )r_st == 0 [L379] tmp___3 = __VERIFIER_nondet_int() [L381] COND TRUE \read(tmp___3) [L383] r_st = 1 [L384] CALL read() [L259] d = c [L260] e_e = 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L261] COND FALSE !((int )wl_pc == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L269] COND TRUE (int )wl_pc == 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L270] COND TRUE (int )e_e == 1 [L271] wl_st = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L279] e_e = 2 [L280] r_st = 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L384] RET read() [L294] COND TRUE 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp___3=-4, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L296] COND TRUE (int )wl_st == 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp___3=-4, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L317] COND TRUE (int )wl_st == 0 [L319] tmp = __VERIFIER_nondet_int() [L321] COND TRUE \read(tmp) [L323] wl_st = 1 [L324] CALL write_loop() [L63] int t ; VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L66] COND FALSE !((int )wl_pc == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L69] COND TRUE (int )wl_pc == 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L118] t = t_b VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L119] COND FALSE !(d == t + 1) [L123] CALL error() [L23] reach_error() VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 32, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7691 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7691 mSDsluCounter, 10289 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3851 mSDsCounter, 201 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 663 IncrementalHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 201 mSolverCounterUnsat, 6438 mSDtfsCounter, 663 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5662occurred in iteration=21, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 31 MinimizatonAttempts, 4416 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 2510 NumberOfCodeBlocks, 2510 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2286 ConstructedInterpolants, 0 QuantifiedInterpolants, 3877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 PerfectInterpolantSequences, 617/617 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-06 17:15:29,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56529ef-d660-458e-99b3-09a48e9b630a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE