./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/avg20-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/reducercommutativity/avg20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF --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 61bc8e70ac867c6ac52806e5ae8f7e7cefd73775be941aab831dd9bf86f7dc88 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:27:55,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:27:55,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:27:55,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:27:55,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:27:55,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:27:55,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:27:55,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:27:55,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:27:55,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:27:55,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:27:55,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:27:55,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:27:55,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:27:55,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:27:55,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:27:55,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:27:55,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:27:55,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:27:55,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:27:55,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:27:55,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:27:55,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:27:55,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:27:55,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:27:55,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:27:55,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:27:55,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:27:55,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:27:55,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:27:55,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:27:55,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:27:55,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:27:55,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:27:55,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:27:55,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:27:55,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:27:55,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:27:55,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:27:55,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:27:55,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:27:55,959 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:27:56,010 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:27:56,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:27:56,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:27:56,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:27:56,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:27:56,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:27:56,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:27:56,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:27:56,013 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:27:56,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:27:56,014 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:27:56,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:27:56,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:27:56,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:27:56,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:27:56,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:27:56,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:27:56,015 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:27:56,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:27:56,016 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:27:56,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:27:56,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:27:56,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:27:56,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:27:56,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:27:56,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:27:56,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:27:56,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:27:56,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:27:56,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:27:56,018 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:27:56,019 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:27:56,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:27:56,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:27:56,019 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_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61bc8e70ac867c6ac52806e5ae8f7e7cefd73775be941aab831dd9bf86f7dc88 [2021-11-20 06:27:56,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:27:56,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:27:56,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:27:56,356 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:27:56,357 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:27:56,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/reducercommutativity/avg20-2.i [2021-11-20 06:27:56,448 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/data/39426e1cc/c5f81628b58342eaadcef766fc1f7dc3/FLAGdae40e21e [2021-11-20 06:27:56,894 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:27:56,894 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/sv-benchmarks/c/reducercommutativity/avg20-2.i [2021-11-20 06:27:56,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/data/39426e1cc/c5f81628b58342eaadcef766fc1f7dc3/FLAGdae40e21e [2021-11-20 06:27:57,269 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/data/39426e1cc/c5f81628b58342eaadcef766fc1f7dc3 [2021-11-20 06:27:57,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:27:57,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:27:57,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:27:57,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:27:57,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:27:57,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6334ea63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57, skipping insertion in model container [2021-11-20 06:27:57,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:27:57,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:27:57,520 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_056df2be-d163-46e3-be25-e33e830f8937/sv-benchmarks/c/reducercommutativity/avg20-2.i[1282,1295] [2021-11-20 06:27:57,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:27:57,531 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:27:57,551 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_056df2be-d163-46e3-be25-e33e830f8937/sv-benchmarks/c/reducercommutativity/avg20-2.i[1282,1295] [2021-11-20 06:27:57,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:27:57,564 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:27:57,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57 WrapperNode [2021-11-20 06:27:57,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:27:57,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:27:57,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:27:57,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:27:57,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,611 INFO L137 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2021-11-20 06:27:57,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:27:57,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:27:57,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:27:57,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:27:57,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:27:57,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:27:57,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:27:57,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:27:57,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (1/1) ... [2021-11-20 06:27:57,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:27:57,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:27:57,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:27:57,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:27:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:27:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:27:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:27:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:27:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2021-11-20 06:27:57,775 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2021-11-20 06:27:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:27:57,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:27:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:27:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:27:57,850 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:27:57,851 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:27:58,021 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:27:58,037 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:27:58,037 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 06:27:58,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:27:58 BoogieIcfgContainer [2021-11-20 06:27:58,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:27:58,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:27:58,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:27:58,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:27:58,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:27:57" (1/3) ... [2021-11-20 06:27:58,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c2ee36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:27:58, skipping insertion in model container [2021-11-20 06:27:58,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:57" (2/3) ... [2021-11-20 06:27:58,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c2ee36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:27:58, skipping insertion in model container [2021-11-20 06:27:58,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:27:58" (3/3) ... [2021-11-20 06:27:58,047 INFO L111 eAbstractionObserver]: Analyzing ICFG avg20-2.i [2021-11-20 06:27:58,052 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:27:58,052 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:27:58,099 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:27:58,107 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 [2021-11-20 06:27:58,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:27:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 21 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:27:58,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 06:27:58,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:27:58,131 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:27:58,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:27:58,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:27:58,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2001158789, now seen corresponding path program 1 times [2021-11-20 06:27:58,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:27:58,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304552191] [2021-11-20 06:27:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:27:58,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:27:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:58,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:27:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:27:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:58,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:27:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 06:27:58,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:27:58,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304552191] [2021-11-20 06:27:58,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304552191] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:27:58,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294747618] [2021-11-20 06:27:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:27:58,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:27:58,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:27:58,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:27:58,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:27:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:58,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:27:58,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:27:58,687 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-20 06:27:58,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:27:58,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294747618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:27:58,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:27:58,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-20 06:27:58,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649583756] [2021-11-20 06:27:58,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:27:58,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:27:58,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:27:58,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:27:58,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:27:58,752 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 21 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 06:27:58,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:27:58,794 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions. [2021-11-20 06:27:58,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:27:58,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-11-20 06:27:58,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:27:58,807 INFO L225 Difference]: With dead ends: 50 [2021-11-20 06:27:58,807 INFO L226 Difference]: Without dead ends: 24 [2021-11-20 06:27:58,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:27:58,821 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:27:58,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:27:58,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-20 06:27:58,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-11-20 06:27:58,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:27:58,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-11-20 06:27:58,878 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 28 [2021-11-20 06:27:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:27:58,879 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-20 06:27:58,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 06:27:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-20 06:27:58,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 06:27:58,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:27:58,886 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:27:58,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:27:59,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-20 06:27:59,102 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:27:59,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:27:59,103 INFO L85 PathProgramCache]: Analyzing trace with hash 202333565, now seen corresponding path program 1 times [2021-11-20 06:27:59,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:27:59,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711056539] [2021-11-20 06:27:59,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:27:59,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:27:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:27:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:27:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 06:27:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-20 06:27:59,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:27:59,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711056539] [2021-11-20 06:27:59,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711056539] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:27:59,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159204743] [2021-11-20 06:27:59,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:27:59,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:27:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:27:59,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:27:59,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:27:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:27:59,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:27:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 06:27:59,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:27:59,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159204743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:27:59,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:27:59,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-20 06:27:59,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875948668] [2021-11-20 06:27:59,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:27:59,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:27:59,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:27:59,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:27:59,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:27:59,395 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 06:27:59,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:27:59,419 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2021-11-20 06:27:59,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:27:59,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2021-11-20 06:27:59,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:27:59,422 INFO L225 Difference]: With dead ends: 42 [2021-11-20 06:27:59,422 INFO L226 Difference]: Without dead ends: 25 [2021-11-20 06:27:59,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:27:59,426 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:27:59,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:27:59,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-20 06:27:59,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-11-20 06:27:59,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:27:59,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-11-20 06:27:59,447 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 30 [2021-11-20 06:27:59,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:27:59,448 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-11-20 06:27:59,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 06:27:59,448 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-20 06:27:59,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-20 06:27:59,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:27:59,450 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:27:59,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:27:59,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:27:59,678 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:27:59,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:27:59,679 INFO L85 PathProgramCache]: Analyzing trace with hash -796008709, now seen corresponding path program 1 times [2021-11-20 06:27:59,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:27:59,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288991197] [2021-11-20 06:27:59,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:27:59,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:27:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:27:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:27:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:27:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 06:27:59,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:27:59,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288991197] [2021-11-20 06:27:59,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288991197] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:27:59,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995736922] [2021-11-20 06:27:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:27:59,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:27:59,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:27:59,810 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:27:59,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:27:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:59,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:27:59,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:27:59,952 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 06:27:59,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:27:59,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995736922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:27:59,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:27:59,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-20 06:27:59,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252641243] [2021-11-20 06:27:59,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:27:59,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:27:59,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:27:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:27:59,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:27:59,955 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 06:27:59,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:27:59,967 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2021-11-20 06:27:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:27:59,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2021-11-20 06:27:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:27:59,969 INFO L225 Difference]: With dead ends: 39 [2021-11-20 06:27:59,969 INFO L226 Difference]: Without dead ends: 26 [2021-11-20 06:27:59,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:27:59,971 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:27:59,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:27:59,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-20 06:27:59,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-11-20 06:27:59,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:27:59,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-11-20 06:27:59,977 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 36 [2021-11-20 06:27:59,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:27:59,979 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-20 06:27:59,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 06:27:59,979 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-11-20 06:27:59,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 06:27:59,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:27:59,981 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:00,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:00,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-20 06:28:00,198 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:00,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:00,198 INFO L85 PathProgramCache]: Analyzing trace with hash 165229081, now seen corresponding path program 1 times [2021-11-20 06:28:00,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:00,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466640533] [2021-11-20 06:28:00,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:00,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:00,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:28:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:00,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:28:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:00,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:28:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:00,320 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:28:00,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:28:00,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466640533] [2021-11-20 06:28:00,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466640533] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:28:00,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251802476] [2021-11-20 06:28:00,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:00,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:00,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:28:00,330 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:28:00,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:28:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:00,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:28:00,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:28:00,501 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-20 06:28:00,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:28:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-20 06:28:00,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251802476] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:00,663 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:00,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2021-11-20 06:28:00,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069976856] [2021-11-20 06:28:00,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:00,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:28:00,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:28:00,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:28:00,666 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:28:00,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:28:00,726 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2021-11-20 06:28:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:28:00,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 38 [2021-11-20 06:28:00,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:28:00,730 INFO L225 Difference]: With dead ends: 54 [2021-11-20 06:28:00,730 INFO L226 Difference]: Without dead ends: 34 [2021-11-20 06:28:00,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:28:00,736 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 102 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 [2021-11-20 06:28:00,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 102 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:28:00,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-20 06:28:00,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-11-20 06:28:00,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:28:00,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2021-11-20 06:28:00,758 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 38 [2021-11-20 06:28:00,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:28:00,759 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-11-20 06:28:00,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:28:00,760 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2021-11-20 06:28:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-20 06:28:00,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:28:00,763 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:00,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:00,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:00,963 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:00,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:00,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1299679203, now seen corresponding path program 2 times [2021-11-20 06:28:00,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:00,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278782300] [2021-11-20 06:28:00,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:00,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:28:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:01,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:28:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:01,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 06:28:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-11-20 06:28:01,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:28:01,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278782300] [2021-11-20 06:28:01,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278782300] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:28:01,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592624762] [2021-11-20 06:28:01,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:28:01,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:01,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:28:01,047 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:28:01,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 06:28:01,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:28:01,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:28:01,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:28:01,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:28:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-20 06:28:01,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:28:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-20 06:28:01,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592624762] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:01,429 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:01,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2021-11-20 06:28:01,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172280240] [2021-11-20 06:28:01,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:01,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 06:28:01,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:01,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 06:28:01,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:28:01,432 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 06:28:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:28:01,487 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2021-11-20 06:28:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 06:28:01,488 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 50 [2021-11-20 06:28:01,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:28:01,489 INFO L225 Difference]: With dead ends: 70 [2021-11-20 06:28:01,489 INFO L226 Difference]: Without dead ends: 48 [2021-11-20 06:28:01,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:28:01,490 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:28:01,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 80 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:28:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-20 06:28:01,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2021-11-20 06:28:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 42 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:28:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2021-11-20 06:28:01,498 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 50 [2021-11-20 06:28:01,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:28:01,498 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2021-11-20 06:28:01,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 06:28:01,498 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2021-11-20 06:28:01,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 06:28:01,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:28:01,501 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:01,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:01,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:01,714 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:01,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:01,714 INFO L85 PathProgramCache]: Analyzing trace with hash 936210247, now seen corresponding path program 3 times [2021-11-20 06:28:01,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:01,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232163688] [2021-11-20 06:28:01,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:01,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:01,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 06:28:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:28:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:01,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:28:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-20 06:28:01,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:28:01,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232163688] [2021-11-20 06:28:01,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232163688] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:28:01,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83097978] [2021-11-20 06:28:01,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:28:01,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:01,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:28:01,913 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:28:01,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 06:28:01,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-20 06:28:01,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:28:01,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:28:01,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:28:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-11-20 06:28:02,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:28:02,260 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-11-20 06:28:02,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83097978] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:02,261 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:02,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2021-11-20 06:28:02,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061263539] [2021-11-20 06:28:02,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:02,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 06:28:02,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:02,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 06:28:02,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:28:02,263 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:28:02,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:28:02,349 INFO L93 Difference]: Finished difference Result 82 states and 97 transitions. [2021-11-20 06:28:02,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 06:28:02,350 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2021-11-20 06:28:02,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:28:02,353 INFO L225 Difference]: With dead ends: 82 [2021-11-20 06:28:02,353 INFO L226 Difference]: Without dead ends: 58 [2021-11-20 06:28:02,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:28:02,355 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:28:02,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 102 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:28:02,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-20 06:28:02,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2021-11-20 06:28:02,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 52 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:28:02,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-11-20 06:28:02,372 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 64 [2021-11-20 06:28:02,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:28:02,373 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-11-20 06:28:02,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:28:02,373 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-11-20 06:28:02,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-20 06:28:02,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:28:02,377 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 11, 11, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:02,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:02,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 06:28:02,590 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:02,590 INFO L85 PathProgramCache]: Analyzing trace with hash 161581377, now seen corresponding path program 4 times [2021-11-20 06:28:02,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:02,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370125744] [2021-11-20 06:28:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:02,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:02,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:28:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:02,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 06:28:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:02,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:28:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-20 06:28:02,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:28:02,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370125744] [2021-11-20 06:28:02,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370125744] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:28:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960505226] [2021-11-20 06:28:02,825 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 06:28:02,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:02,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:28:02,826 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:28:02,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 06:28:02,911 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 06:28:02,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:28:02,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:28:02,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:28:03,102 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 178 proven. 4 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2021-11-20 06:28:03,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:28:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2021-11-20 06:28:03,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960505226] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:03,306 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:03,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 20 [2021-11-20 06:28:03,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564144000] [2021-11-20 06:28:03,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:03,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-20 06:28:03,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:03,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-20 06:28:03,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-11-20 06:28:03,310 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:28:03,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:28:03,390 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2021-11-20 06:28:03,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 06:28:03,390 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 90 [2021-11-20 06:28:03,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:28:03,394 INFO L225 Difference]: With dead ends: 100 [2021-11-20 06:28:03,394 INFO L226 Difference]: Without dead ends: 68 [2021-11-20 06:28:03,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-11-20 06:28:03,400 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 21 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:28:03,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 81 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:28:03,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-20 06:28:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2021-11-20 06:28:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.0483870967741935) internal successors, (65), 62 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:28:03,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2021-11-20 06:28:03,422 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 90 [2021-11-20 06:28:03,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:28:03,422 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2021-11-20 06:28:03,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:28:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2021-11-20 06:28:03,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 06:28:03,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:28:03,427 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:03,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:03,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 06:28:03,630 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:03,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:03,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1010910917, now seen corresponding path program 5 times [2021-11-20 06:28:03,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:03,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671831690] [2021-11-20 06:28:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:03,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:03,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:28:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 06:28:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-20 06:28:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2021-11-20 06:28:03,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:28:03,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671831690] [2021-11-20 06:28:03,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671831690] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:28:03,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343224007] [2021-11-20 06:28:03,848 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 06:28:03,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:03,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:28:03,849 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:28:03,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 06:28:04,591 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2021-11-20 06:28:04,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:28:04,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:28:04,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:28:04,836 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-20 06:28:04,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:28:05,111 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2021-11-20 06:28:05,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343224007] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:05,112 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:05,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 29 [2021-11-20 06:28:05,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690518549] [2021-11-20 06:28:05,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:05,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-20 06:28:05,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-20 06:28:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2021-11-20 06:28:05,114 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 29 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:28:05,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:28:05,234 INFO L93 Difference]: Finished difference Result 126 states and 145 transitions. [2021-11-20 06:28:05,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-20 06:28:05,236 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 29 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 100 [2021-11-20 06:28:05,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:28:05,237 INFO L225 Difference]: With dead ends: 126 [2021-11-20 06:28:05,237 INFO L226 Difference]: Without dead ends: 86 [2021-11-20 06:28:05,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2021-11-20 06:28:05,239 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 27 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:28:05,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 142 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:28:05,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-20 06:28:05,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2021-11-20 06:28:05,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 80 states have (on average 1.0375) internal successors, (83), 80 states have internal predecessors, (83), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:28:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2021-11-20 06:28:05,247 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 100 [2021-11-20 06:28:05,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:28:05,247 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2021-11-20 06:28:05,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 29 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:28:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2021-11-20 06:28:05,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-20 06:28:05,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:28:05,250 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 13, 13, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:05,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:05,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:05,474 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:05,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1009519917, now seen corresponding path program 6 times [2021-11-20 06:28:05,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:05,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151883161] [2021-11-20 06:28:05,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:05,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:05,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 06:28:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 06:28:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:28:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 1899 trivial. 0 not checked. [2021-11-20 06:28:05,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:28:05,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151883161] [2021-11-20 06:28:05,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151883161] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:28:05,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692701043] [2021-11-20 06:28:05,685 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 06:28:05,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:05,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:28:05,686 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:28:05,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 06:28:06,078 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2021-11-20 06:28:06,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:28:06,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-20 06:28:06,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:28:06,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 875 proven. 36 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2021-11-20 06:28:06,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:28:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 2032 trivial. 0 not checked. [2021-11-20 06:28:06,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692701043] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:06,757 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:06,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 9] total 32 [2021-11-20 06:28:06,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429718331] [2021-11-20 06:28:06,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:06,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-20 06:28:06,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:06,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-20 06:28:06,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2021-11-20 06:28:06,760 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand has 32 states, 32 states have (on average 2.6875) internal successors, (86), 32 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:28:07,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:28:07,095 INFO L93 Difference]: Finished difference Result 161 states and 178 transitions. [2021-11-20 06:28:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-20 06:28:07,096 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.6875) internal successors, (86), 32 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 150 [2021-11-20 06:28:07,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:28:07,097 INFO L225 Difference]: With dead ends: 161 [2021-11-20 06:28:07,097 INFO L226 Difference]: Without dead ends: 105 [2021-11-20 06:28:07,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=510, Invalid=1560, Unknown=0, NotChecked=0, Total=2070 [2021-11-20 06:28:07,099 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 60 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:28:07,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 143 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:28:07,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-20 06:28:07,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-11-20 06:28:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 100 states have (on average 1.03) internal successors, (103), 100 states have internal predecessors, (103), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:28:07,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2021-11-20 06:28:07,108 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 150 [2021-11-20 06:28:07,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:28:07,108 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2021-11-20 06:28:07,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.6875) internal successors, (86), 32 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:28:07,109 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2021-11-20 06:28:07,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-20 06:28:07,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:28:07,111 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 15, 15, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:07,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:07,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-20 06:28:07,337 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:07,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:07,338 INFO L85 PathProgramCache]: Analyzing trace with hash -741965151, now seen corresponding path program 7 times [2021-11-20 06:28:07,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:07,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231946821] [2021-11-20 06:28:07,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:07,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:07,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 06:28:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:07,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:28:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:07,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-20 06:28:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:07,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2284 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2021-11-20 06:28:07,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:28:07,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231946821] [2021-11-20 06:28:07,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231946821] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:28:07,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588195081] [2021-11-20 06:28:07,581 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-20 06:28:07,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:07,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:28:07,582 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:28:07,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 06:28:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:07,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-20 06:28:07,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:28:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2284 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2021-11-20 06:28:08,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:28:08,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2284 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2021-11-20 06:28:08,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588195081] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:08,451 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:08,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 23 [2021-11-20 06:28:08,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948313122] [2021-11-20 06:28:08,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:08,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 06:28:08,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:08,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 06:28:08,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-20 06:28:08,455 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:28:08,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:28:08,513 INFO L93 Difference]: Finished difference Result 187 states and 199 transitions. [2021-11-20 06:28:08,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 06:28:08,514 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 170 [2021-11-20 06:28:08,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:28:08,515 INFO L225 Difference]: With dead ends: 187 [2021-11-20 06:28:08,515 INFO L226 Difference]: Without dead ends: 115 [2021-11-20 06:28:08,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 340 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-20 06:28:08,517 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 20 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:28:08,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 112 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:28:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-20 06:28:08,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-20 06:28:08,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 110 states have (on average 1.0272727272727273) internal successors, (113), 110 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:28:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 119 transitions. [2021-11-20 06:28:08,534 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 119 transitions. Word has length 170 [2021-11-20 06:28:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:28:08,535 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 119 transitions. [2021-11-20 06:28:08,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:28:08,535 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 119 transitions. [2021-11-20 06:28:08,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-20 06:28:08,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:28:08,538 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 20, 20, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:08,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:08,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:08,751 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:08,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:08,751 INFO L85 PathProgramCache]: Analyzing trace with hash -784239573, now seen corresponding path program 8 times [2021-11-20 06:28:08,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:08,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138517697] [2021-11-20 06:28:08,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:08,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:08,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 06:28:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:08,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 06:28:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:08,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-20 06:28:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 0 proven. 1044 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2021-11-20 06:28:09,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:28:09,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138517697] [2021-11-20 06:28:09,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138517697] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:28:09,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081872425] [2021-11-20 06:28:09,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:28:09,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:09,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:28:09,003 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:28:09,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 06:28:09,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:28:09,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:28:09,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 06:28:09,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:28:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 844 proven. 196 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2021-11-20 06:28:09,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:28:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 0 proven. 1044 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2021-11-20 06:28:09,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081872425] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:09,893 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:09,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 22 [2021-11-20 06:28:09,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84257137] [2021-11-20 06:28:09,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:09,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 06:28:09,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:09,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 06:28:09,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-20 06:28:09,897 INFO L87 Difference]: Start difference. First operand 115 states and 119 transitions. Second operand has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 06:28:09,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:28:09,965 INFO L93 Difference]: Finished difference Result 198 states and 213 transitions. [2021-11-20 06:28:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 06:28:09,965 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2021-11-20 06:28:09,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:28:09,968 INFO L225 Difference]: With dead ends: 198 [2021-11-20 06:28:09,968 INFO L226 Difference]: Without dead ends: 127 [2021-11-20 06:28:09,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 360 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-20 06:28:09,970 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 20 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:28:09,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 90 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:28:09,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-20 06:28:09,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-11-20 06:28:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 122 states have (on average 1.0245901639344261) internal successors, (125), 122 states have internal predecessors, (125), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:28:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 131 transitions. [2021-11-20 06:28:09,986 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 131 transitions. Word has length 180 [2021-11-20 06:28:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:28:09,988 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 131 transitions. [2021-11-20 06:28:09,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 06:28:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 131 transitions. [2021-11-20 06:28:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-20 06:28:09,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:28:09,991 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 20, 20, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:10,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:10,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:10,205 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:10,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:10,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1743923041, now seen corresponding path program 9 times [2021-11-20 06:28:10,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:10,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839166017] [2021-11-20 06:28:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:10,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 06:28:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:10,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:28:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 06:28:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:28:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 4135 trivial. 0 not checked. [2021-11-20 06:28:10,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:28:10,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839166017] [2021-11-20 06:28:10,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839166017] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:28:10,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220565149] [2021-11-20 06:28:10,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:28:10,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:28:10,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:28:10,476 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:28:10,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 06:28:14,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-20 06:28:14,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:28:14,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 06:28:14,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:28:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 1690 proven. 196 refuted. 0 times theorem prover too weak. 2445 trivial. 0 not checked. [2021-11-20 06:28:15,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:28:15,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 4135 trivial. 0 not checked. [2021-11-20 06:28:15,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220565149] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:15,626 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:15,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 22 [2021-11-20 06:28:15,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745636427] [2021-11-20 06:28:15,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:15,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 06:28:15,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:15,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 06:28:15,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-20 06:28:15,629 INFO L87 Difference]: Start difference. First operand 127 states and 131 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:28:15,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:28:15,689 INFO L93 Difference]: Finished difference Result 188 states and 197 transitions. [2021-11-20 06:28:15,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 06:28:15,690 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 216 [2021-11-20 06:28:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:28:15,692 INFO L225 Difference]: With dead ends: 188 [2021-11-20 06:28:15,692 INFO L226 Difference]: Without dead ends: 137 [2021-11-20 06:28:15,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-20 06:28:15,693 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:28:15,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 45 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:28:15,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-20 06:28:15,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-20 06:28:15,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 132 states have (on average 1.0227272727272727) internal successors, (135), 132 states have internal predecessors, (135), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:28:15,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 141 transitions. [2021-11-20 06:28:15,701 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 141 transitions. Word has length 216 [2021-11-20 06:28:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:28:15,701 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 141 transitions. [2021-11-20 06:28:15,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:28:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 141 transitions. [2021-11-20 06:28:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-20 06:28:15,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:28:15,705 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 20, 20, 19, 19, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:28:15,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-20 06:28:15,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 06:28:15,925 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:28:15,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:28:15,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1352255541, now seen corresponding path program 10 times [2021-11-20 06:28:15,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:28:15,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646972855] [2021-11-20 06:28:15,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:28:15,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:28:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:30:37,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 06:30:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:30:56,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:30:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 06:31:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4496 backedges. 23 proven. 4437 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-20 06:31:40,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:40,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646972855] [2021-11-20 06:31:40,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646972855] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:31:40,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021312024] [2021-11-20 06:31:40,869 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 06:31:40,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:40,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:40,874 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:40,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056df2be-d163-46e3-be25-e33e830f8937/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 06:31:41,675 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 06:31:41,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:31:41,694 WARN L261 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 396 conjunts are in the unsatisfiable core [2021-11-20 06:31:41,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:49,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 06:36:44,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:44,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:45,426 INFO L354 Elim1Store]: treesize reduction 2502, result has 3.7 percent of original size [2021-11-20 06:36:45,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 66 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 198 case distinctions, treesize of input 9979 treesize of output 2822 [2021-11-20 06:37:56,791 WARN L860 $PredicateComparison]: unable to prove that (exists ((avg_~i~0 Int)) (and (or (exists ((|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202_801| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse26 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse27 (* avg_~i~0 4))) (let ((.cse24 (select .cse26 .cse27)) (.cse6 (select .cse26 (+ (- 12) .cse27))) (.cse12 (select .cse26 40)) (.cse22 (select .cse26 4)) (.cse8 (select .cse26 28)) (.cse7 (select .cse26 12)) (.cse10 (select .cse26 (+ (- 4) .cse27))) (.cse15 (select .cse26 20)) (.cse20 (select .cse26 32)) (.cse14 (select .cse26 16)) (.cse25 (select .cse26 (+ (- 16) .cse27))) (.cse19 (select .cse26 24)) (.cse16 (select .cse26 36)) (.cse17 (select .cse26 8)) (.cse18 (select .cse26 (+ .cse27 (- 8)))) (.cse9 (select .cse26 44)) (.cse21 (select .cse26 (+ (- 20) .cse27))) (.cse23 (select .cse26 (+ .cse27 (- 24)))) (.cse11 (select .cse26 (+ (- 28) .cse27))) (.cse13 (select .cse26 0))) (let ((.cse4 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966|)) (.cse5 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202|)) (.cse3 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879|)) (.cse0 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202_801|)) (.cse2 (div (+ .cse24 .cse6 .cse12 .cse22 .cse8 .cse7 .cse10 (- 85899345920) .cse15 .cse20 .cse14 .cse25 .cse19 .cse16 .cse17 .cse18 .cse9 .cse21 .cse23 .cse11 .cse13) 20)) (.cse1 (div (+ (* .cse6 (- 1)) (* .cse7 (- 1)) (* .cse8 (- 1)) (* .cse9 (- 1)) (* .cse10 (- 1)) 85899345920 (* .cse11 (- 1)) (* .cse12 (- 1)) (* .cse13 (- 1)) (* .cse14 (- 1)) (* .cse15 (- 1)) (* .cse16 (- 1)) (* .cse17 (- 1)) (* .cse18 (- 1)) (* .cse19 (- 1)) (* .cse20 (- 1)) (* .cse21 (- 1)) (* .cse22 (- 1)) (* .cse23 (- 1)) (* .cse24 (- 1)) (* .cse25 (- 1))) (- 20)))) (and (<= (+ .cse0 .cse1) (+ .cse2 .cse3)) (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879| (+ (div (+ 2147483649 .cse2) 4294967296) |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202| 1)) (<= (+ .cse0 .cse4) (+ .cse2 2147483648)) (<= (+ .cse5 .cse4) 2147483646) (<= (+ 2 .cse5 .cse1) .cse3) (< .cse1 .cse3) (<= .cse0 (+ .cse2 4294967296)) (< (div (+ (- 1) (* .cse1 (- 1))) (- 4294967296)) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202_801| |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966| 1))))))) (exists ((|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789_1506| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse71 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse72 (* avg_~i~0 4))) (let ((.cse58 (select .cse71 (+ (- 16) .cse72))) (.cse48 (select .cse71 .cse72)) (.cse65 (select .cse71 (+ .cse72 (- 24)))) (.cse51 (select .cse71 4)) (.cse64 (select .cse71 (+ (- 20) .cse72))) (.cse56 (select .cse71 32)) (.cse59 (select .cse71 24)) (.cse62 (select .cse71 (+ .cse72 (- 8)))) (.cse61 (select .cse71 8)) (.cse60 (select .cse71 36)) (.cse55 (select .cse71 20)) (.cse57 (select .cse71 16)) (.cse67 (select .cse71 0)) (.cse50 (select .cse71 40)) (.cse66 (select .cse71 (+ (- 28) .cse72))) (.cse54 (select .cse71 (+ (- 4) .cse72))) (.cse63 (select .cse71 44)) (.cse52 (select .cse71 28)) (.cse53 (select .cse71 12)) (.cse49 (select .cse71 (+ (- 12) .cse72)))) (let ((.cse28 (* .cse49 (- 1))) (.cse29 (* .cse53 (- 1))) (.cse30 (* .cse52 (- 1))) (.cse31 (* .cse63 (- 1))) (.cse32 (* .cse54 (- 1))) (.cse33 (* .cse66 (- 1))) (.cse34 (* .cse50 (- 1))) (.cse35 (* .cse67 (- 1))) (.cse36 (* .cse57 (- 1))) (.cse37 (* .cse55 (- 1))) (.cse38 (* .cse60 (- 1))) (.cse39 (* .cse61 (- 1))) (.cse40 (* .cse62 (- 1))) (.cse41 (* .cse59 (- 1))) (.cse42 (* .cse56 (- 1))) (.cse43 (* .cse64 (- 1))) (.cse44 (* .cse51 (- 1))) (.cse45 (* .cse65 (- 1))) (.cse46 (* .cse48 (- 1))) (.cse47 (* .cse58 (- 1)))) (let ((.cse69 (div (+ .cse48 .cse49 .cse50 .cse51 .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 .cse60 .cse61 .cse62 20 .cse63 .cse64 .cse65 .cse66 .cse67) 20)) (.cse70 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88|)) (.cse68 (div (+ .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 19 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse46 .cse47) (- 20)))) (and (< (div (+ .cse28 .cse29 .cse30 .cse31 (- 1) .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse46 .cse47) (- 20)) (+ (div (+ .cse48 .cse49 19 .cse50 .cse51 .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 .cse60 .cse61 .cse62 .cse63 .cse64 .cse65 .cse66 .cse67) 20) 1)) (< (div (+ 4294967295 (* .cse68 (- 1))) (- 4294967296)) (div .cse69 4294967296)) (<= .cse70 2147483647) (< (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789|) (+ 2147483649 .cse69 .cse70)) (< .cse68 (+ 4294967295 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789_1506|))) (< (+ .cse48 .cse49 .cse50 .cse51 .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 .cse60 .cse61 .cse62 .cse63 .cse64 .cse65 .cse66 .cse67) 0) (< |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789_1506| (+ |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789| 1)))))))) (exists ((|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| Int) (|aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse115 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse116 (* avg_~i~0 4))) (let ((.cse104 (select .cse115 (+ (- 16) .cse116))) (.cse94 (select .cse115 .cse116)) (.cse111 (select .cse115 (+ .cse116 (- 24)))) (.cse97 (select .cse115 4)) (.cse110 (select .cse115 (+ (- 20) .cse116))) (.cse102 (select .cse115 32)) (.cse105 (select .cse115 24)) (.cse108 (select .cse115 (+ .cse116 (- 8)))) (.cse107 (select .cse115 8)) (.cse106 (select .cse115 36)) (.cse101 (select .cse115 20)) (.cse103 (select .cse115 16)) (.cse113 (select .cse115 0)) (.cse96 (select .cse115 40)) (.cse112 (select .cse115 (+ (- 28) .cse116))) (.cse100 (select .cse115 (+ (- 4) .cse116))) (.cse109 (select .cse115 44)) (.cse98 (select .cse115 28)) (.cse99 (select .cse115 12)) (.cse95 (select .cse115 (+ (- 12) .cse116)))) (let ((.cse93 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|)) (.cse73 (* .cse95 (- 1))) (.cse74 (* .cse99 (- 1))) (.cse75 (* .cse98 (- 1))) (.cse76 (* .cse109 (- 1))) (.cse77 (* .cse100 (- 1))) (.cse78 (* .cse112 (- 1))) (.cse79 (* .cse96 (- 1))) (.cse80 (* .cse113 (- 1))) (.cse81 (* .cse103 (- 1))) (.cse82 (* .cse101 (- 1))) (.cse83 (* .cse106 (- 1))) (.cse84 (* .cse107 (- 1))) (.cse85 (* .cse108 (- 1))) (.cse86 (* .cse105 (- 1))) (.cse87 (* .cse102 (- 1))) (.cse88 (* .cse110 (- 1))) (.cse89 (* .cse97 (- 1))) (.cse90 (* .cse111 (- 1))) (.cse91 (* .cse94 (- 1))) (.cse92 (* .cse104 (- 1))) (.cse114 (div (+ .cse94 (* |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| (- 20)) .cse95 .cse96 .cse97 (- 42949672960) .cse98 .cse99 .cse100 .cse101 .cse102 .cse103 .cse104 .cse105 .cse106 .cse107 .cse108 .cse109 .cse110 .cse111 .cse112 .cse113 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| (- 85899345920))) 85899345920))) (and (<= (div (+ .cse73 .cse74 .cse75 .cse76 (- 1) .cse77 .cse78 .cse79 .cse80 .cse81 .cse82 .cse83 .cse84 .cse85 .cse86 .cse87 .cse88 .cse89 .cse90 .cse91 .cse92) (- 20)) (+ 2147483649 .cse93 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884|) |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|)) (<= 0 (+ .cse94 .cse95 .cse96 .cse97 .cse98 .cse99 .cse100 .cse101 .cse102 .cse103 .cse104 .cse105 .cse106 .cse107 .cse108 .cse109 .cse110 .cse111 .cse112 .cse113)) (<= 0 (+ .cse93 2147483648 |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|)) (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884| (+ .cse114 1)) (< (+ .cse93 |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|) 2147483648) (< (div (+ 4294967295 (* (div (+ .cse73 .cse74 .cse75 .cse76 .cse77 .cse78 19 .cse79 .cse80 .cse81 .cse82 .cse83 .cse84 .cse85 .cse86 .cse87 .cse88 .cse89 .cse90 .cse91 .cse92) (- 20)) (- 1))) (- 4294967296)) (+ .cse114 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| 1)) (<= 0 |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|)))))) (exists ((|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970_183_802| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse140 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse141 (* avg_~i~0 4))) (let ((.cse121 (select .cse140 (+ (- 12) .cse141))) (.cse125 (select .cse140 12)) (.cse124 (select .cse140 28)) (.cse135 (select .cse140 44)) (.cse126 (select .cse140 (+ (- 4) .cse141))) (.cse138 (select .cse140 (+ (- 28) .cse141))) (.cse122 (select .cse140 40)) (.cse139 (select .cse140 0)) (.cse129 (select .cse140 16)) (.cse127 (select .cse140 20)) (.cse132 (select .cse140 36)) (.cse133 (select .cse140 8)) (.cse134 (select .cse140 (+ .cse141 (- 8)))) (.cse131 (select .cse140 24)) (.cse128 (select .cse140 32)) (.cse136 (select .cse140 (+ (- 20) .cse141))) (.cse123 (select .cse140 4)) (.cse137 (select .cse140 (+ .cse141 (- 24)))) (.cse120 (select .cse140 .cse141)) (.cse130 (select .cse140 (+ (- 16) .cse141)))) (let ((.cse117 (div (+ (* .cse121 (- 1)) (* .cse125 (- 1)) (* .cse124 (- 1)) (* .cse135 (- 1)) (* .cse126 (- 1)) (* .cse138 (- 1)) (* .cse122 (- 1)) (* .cse139 (- 1)) (* .cse129 (- 1)) (* .cse127 (- 1)) (* .cse132 (- 1)) (* .cse133 (- 1)) (* .cse134 (- 1)) (* .cse131 (- 1)) (* .cse128 (- 1)) (* .cse136 (- 1)) (* .cse123 (- 1)) (* .cse137 (- 1)) (* .cse120 (- 1)) (* .cse130 (- 1))) (- 20))) (.cse118 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867|)) (.cse119 (div (+ .cse120 .cse121 .cse122 .cse123 .cse124 .cse125 .cse126 .cse127 .cse128 .cse129 .cse130 .cse131 .cse132 .cse133 .cse134 .cse135 .cse136 .cse137 .cse138 .cse139) 20))) (and (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867| (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970_183_802| 1)) (<= (+ (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970|) .cse117) (+ .cse118 2147483646)) (< .cse117 (+ .cse118 4294967296)) (<= (+ (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970_183_802|) .cse117) (+ .cse119 .cse118)) (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867| (+ |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970| (div .cse119 4294967296) 1)) (< |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970| 1)))))) (exists ((|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794_217| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448| Int)) (let ((.cse168 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse169 (* avg_~i~0 4))) (let ((.cse166 (select .cse168 .cse169)) (.cse148 (select .cse168 (+ (- 12) .cse169))) (.cse154 (select .cse168 40)) (.cse164 (select .cse168 4)) (.cse150 (select .cse168 28)) (.cse149 (select .cse168 12)) (.cse152 (select .cse168 (+ (- 4) .cse169))) (.cse157 (select .cse168 20)) (.cse162 (select .cse168 32)) (.cse156 (select .cse168 16)) (.cse167 (select .cse168 (+ (- 16) .cse169))) (.cse161 (select .cse168 24)) (.cse158 (select .cse168 36)) (.cse159 (select .cse168 8)) (.cse160 (select .cse168 (+ .cse169 (- 8)))) (.cse151 (select .cse168 44)) (.cse163 (select .cse168 (+ (- 20) .cse169))) (.cse165 (select .cse168 (+ .cse169 (- 24)))) (.cse153 (select .cse168 (+ (- 28) .cse169))) (.cse155 (select .cse168 0))) (let ((.cse143 (+ .cse166 .cse148 .cse154 .cse164 .cse150 .cse149 .cse152 .cse157 .cse162 .cse156 .cse167 .cse161 .cse158 .cse159 .cse160 .cse151 .cse163 .cse165 .cse153 .cse155))) (let ((.cse144 (div (+ (* .cse148 (- 1)) (* .cse149 (- 1)) (* .cse150 (- 1)) (* .cse151 (- 1)) (- 1) (* .cse152 (- 1)) (* .cse153 (- 1)) (* .cse154 (- 1)) (* .cse155 (- 1)) (* .cse156 (- 1)) (* .cse157 (- 1)) (* .cse158 (- 1)) (* .cse159 (- 1)) (* .cse160 (- 1)) (* .cse161 (- 1)) (* .cse162 (- 1)) (* .cse163 (- 1)) (* .cse164 (- 1)) (* .cse165 (- 1)) (* .cse166 (- 1)) (* .cse167 (- 1))) (- 20))) (.cse146 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448|)) (.cse142 (div .cse143 20)) (.cse147 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794|)) (.cse145 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794_217|))) (and (< (+ |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875| |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794_217|) (+ (div .cse142 4294967296) 1)) (<= 0 .cse143) (<= .cse144 (+ .cse145 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875|) 2147483648)) (< (+ .cse145 .cse146) (+ 2147483649 .cse142)) (< (+ (div (+ (* .cse144 (- 1)) 4294967295) (- 4294967296)) |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794|) (+ 1 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448|)) (<= (+ 2147483647 .cse146) (+ .cse142 .cse147)) (< 0 (+ 2147483649 .cse147)) (<= 0 (+ .cse145 2147483647)))))))) (exists ((|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780_1506| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse214 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse215 (* avg_~i~0 4))) (let ((.cse202 (select .cse214 (+ (- 16) .cse215))) (.cse192 (select .cse214 .cse215)) (.cse209 (select .cse214 (+ .cse215 (- 24)))) (.cse195 (select .cse214 4)) (.cse208 (select .cse214 (+ (- 20) .cse215))) (.cse200 (select .cse214 32)) (.cse203 (select .cse214 24)) (.cse206 (select .cse214 (+ .cse215 (- 8)))) (.cse205 (select .cse214 8)) (.cse204 (select .cse214 36)) (.cse199 (select .cse214 20)) (.cse201 (select .cse214 16)) (.cse211 (select .cse214 0)) (.cse194 (select .cse214 40)) (.cse210 (select .cse214 (+ (- 28) .cse215))) (.cse198 (select .cse214 (+ (- 4) .cse215))) (.cse207 (select .cse214 44)) (.cse196 (select .cse214 28)) (.cse197 (select .cse214 12)) (.cse193 (select .cse214 (+ (- 12) .cse215)))) (let ((.cse172 (* .cse193 (- 1))) (.cse173 (* .cse197 (- 1))) (.cse174 (* .cse196 (- 1))) (.cse175 (* .cse207 (- 1))) (.cse176 (* .cse198 (- 1))) (.cse177 (* .cse210 (- 1))) (.cse178 (* .cse194 (- 1))) (.cse179 (* .cse211 (- 1))) (.cse180 (* .cse201 (- 1))) (.cse181 (* .cse199 (- 1))) (.cse182 (* .cse204 (- 1))) (.cse183 (* .cse205 (- 1))) (.cse184 (* .cse206 (- 1))) (.cse185 (* .cse203 (- 1))) (.cse186 (* .cse200 (- 1))) (.cse187 (* .cse208 (- 1))) (.cse188 (* .cse195 (- 1))) (.cse189 (* .cse209 (- 1))) (.cse190 (* .cse192 (- 1))) (.cse191 (* .cse202 (- 1)))) (let ((.cse213 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780|)) (.cse212 (div (+ .cse192 .cse193 .cse194 .cse195 .cse196 .cse197 .cse198 .cse199 .cse200 .cse201 .cse202 .cse203 .cse204 .cse205 .cse206 20 .cse207 .cse208 .cse209 .cse210 .cse211) 20)) (.cse170 (div (+ .cse172 .cse173 .cse174 .cse175 .cse176 .cse177 19 .cse178 .cse179 .cse180 .cse181 .cse182 .cse183 .cse184 .cse185 .cse186 .cse187 .cse188 .cse189 .cse190 .cse191) (- 20))) (.cse171 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780_1506|))) (and (<= (+ (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88|) .cse170) (+ .cse171 2147483646)) (< (div (+ .cse172 .cse173 .cse174 .cse175 (- 1) .cse176 .cse177 .cse178 .cse179 .cse180 .cse181 .cse182 .cse183 .cse184 .cse185 .cse186 .cse187 .cse188 .cse189 .cse190 .cse191) (- 20)) (+ (div (+ .cse192 .cse193 19 .cse194 .cse195 .cse196 .cse197 .cse198 .cse199 .cse200 .cse201 .cse202 .cse203 .cse204 .cse205 .cse206 .cse207 .cse208 .cse209 .cse210 .cse211) 20) 1)) (< (div (+ 2147483647 (* .cse170 (- 1))) (- 4294967296)) (+ |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88| (div .cse212 4294967296) |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176| 1)) (<= (+ (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176|) .cse213 1) .cse212) (< (+ .cse192 .cse193 .cse194 .cse195 .cse196 .cse197 .cse198 .cse199 .cse200 .cse201 .cse202 .cse203 .cse204 .cse205 .cse206 .cse207 .cse208 .cse209 .cse210 .cse211) 0) (<= .cse213 .cse212) (< .cse170 (+ .cse171 4294967295)) (< |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780_1506| (+ |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780| 1)))))))) (exists ((|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448| Int)) (let ((.cse241 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse242 (* avg_~i~0 4))) (let ((.cse222 (select .cse241 (+ (- 12) .cse242))) (.cse226 (select .cse241 12)) (.cse225 (select .cse241 28)) (.cse236 (select .cse241 44)) (.cse227 (select .cse241 (+ (- 4) .cse242))) (.cse239 (select .cse241 (+ (- 28) .cse242))) (.cse223 (select .cse241 40)) (.cse240 (select .cse241 0)) (.cse230 (select .cse241 16)) (.cse228 (select .cse241 20)) (.cse233 (select .cse241 36)) (.cse234 (select .cse241 8)) (.cse235 (select .cse241 (+ .cse242 (- 8)))) (.cse232 (select .cse241 24)) (.cse229 (select .cse241 32)) (.cse237 (select .cse241 (+ (- 20) .cse242))) (.cse224 (select .cse241 4)) (.cse238 (select .cse241 (+ .cse242 (- 24)))) (.cse221 (select .cse241 .cse242)) (.cse231 (select .cse241 (+ (- 16) .cse242)))) (let ((.cse220 (div (+ (* .cse222 (- 1)) (* .cse226 (- 1)) (* .cse225 (- 1)) (* .cse236 (- 1)) (- 1) (* .cse227 (- 1)) (* .cse239 (- 1)) (* .cse223 (- 1)) (* .cse240 (- 1)) (* .cse230 (- 1)) (* .cse228 (- 1)) (* .cse233 (- 1)) (* .cse234 (- 1)) (* .cse235 (- 1)) (* .cse232 (- 1)) (* .cse229 (- 1)) (* .cse237 (- 1)) (* .cse224 (- 1)) (* .cse238 (- 1)) (* .cse221 (- 1)) (* .cse231 (- 1))) (- 20))) (.cse216 (+ .cse221 .cse222 .cse223 .cse224 .cse225 .cse226 .cse227 .cse228 .cse229 .cse230 .cse231 .cse232 .cse233 .cse234 .cse235 .cse236 .cse237 .cse238 .cse239 .cse240))) (and (<= 0 .cse216) (exists ((|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_781| Int)) (let ((.cse217 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_781|))) (and (< .cse217 4294967295) (<= (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448|) (+ (div (let ((.cse219 (* avg_~i~0 4)) (.cse218 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|))) (+ (select .cse218 .cse219) (select .cse218 (+ (- 12) .cse219)) (select .cse218 40) (select .cse218 4) (select .cse218 28) (select .cse218 12) (select .cse218 (+ (- 4) .cse219)) (select .cse218 20) (select .cse218 32) (select .cse218 16) (select .cse218 (+ (- 16) .cse219)) (select .cse218 24) (select .cse218 36) (select .cse218 8) (select .cse218 (+ .cse219 (- 8))) (select .cse218 44) (select .cse218 (+ (- 20) .cse219)) (select .cse218 (+ .cse219 (- 24))) (select .cse218 (+ (- 28) .cse219)) (select .cse218 0))) 20) 1 .cse217))))) (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875| (+ 1 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448|)) (< .cse220 (+ 4294967297 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875|))) (< (div (+ (* .cse220 (- 1)) 2147483647) (- 4294967296)) (+ (div (div .cse216 20) 4294967296) 1))))))) (exists ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512_1546| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse269 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse270 (* avg_~i~0 4))) (let ((.cse250 (select .cse269 (+ (- 12) .cse270))) (.cse254 (select .cse269 12)) (.cse253 (select .cse269 28)) (.cse264 (select .cse269 44)) (.cse255 (select .cse269 (+ (- 4) .cse270))) (.cse267 (select .cse269 (+ (- 28) .cse270))) (.cse251 (select .cse269 40)) (.cse268 (select .cse269 0)) (.cse258 (select .cse269 16)) (.cse256 (select .cse269 20)) (.cse261 (select .cse269 36)) (.cse262 (select .cse269 8)) (.cse263 (select .cse269 (+ .cse270 (- 8)))) (.cse260 (select .cse269 24)) (.cse257 (select .cse269 32)) (.cse265 (select .cse269 (+ (- 20) .cse270))) (.cse252 (select .cse269 4)) (.cse266 (select .cse269 (+ .cse270 (- 24)))) (.cse249 (select .cse269 .cse270)) (.cse259 (select .cse269 (+ (- 16) .cse270)))) (let ((.cse245 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024|)) (.cse244 (div (+ (* .cse250 (- 1)) (* .cse254 (- 1)) (* .cse253 (- 1)) (* .cse264 (- 1)) (* .cse255 (- 1)) (* .cse267 (- 1)) (* .cse251 (- 1)) (* .cse268 (- 1)) (* .cse258 (- 1)) (* .cse256 (- 1)) (* .cse261 (- 1)) (* .cse262 (- 1)) (* .cse263 (- 1)) (* .cse260 (- 1)) (* .cse257 (- 1)) (* .cse265 (- 1)) (* .cse252 (- 1)) (* .cse266 (- 1)) (* .cse249 (- 1)) (* .cse259 (- 1))) (- 20))) (.cse247 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512_1546|)) (.cse243 (div (+ .cse249 .cse250 .cse251 .cse252 .cse253 .cse254 .cse255 .cse256 .cse257 .cse258 .cse259 .cse260 .cse261 .cse262 .cse263 .cse264 .cse265 .cse266 .cse267 .cse268) 20)) (.cse246 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165|)) (.cse248 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512|))) (and (< |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512_1546| (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512| 1)) (< (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024| |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86| |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165|) (+ (div .cse243 4294967296) 1)) (<= .cse244 (+ 2147483647 .cse245 .cse246)) (< .cse247 (+ .cse245 4294967296)) (< .cse244 (+ .cse247 4294967296)) (<= (+ 2147483647 .cse248) (+ .cse243 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86|))) (< .cse243 (+ .cse246 .cse248 6442450943))))))) (exists ((|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_986_786| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse293 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse294 (* avg_~i~0 4))) (let ((.cse291 (select .cse293 .cse294)) (.cse273 (select .cse293 (+ (- 12) .cse294))) (.cse279 (select .cse293 40)) (.cse289 (select .cse293 4)) (.cse275 (select .cse293 28)) (.cse274 (select .cse293 12)) (.cse277 (select .cse293 (+ (- 4) .cse294))) (.cse282 (select .cse293 20)) (.cse287 (select .cse293 32)) (.cse281 (select .cse293 16)) (.cse292 (select .cse293 (+ (- 16) .cse294))) (.cse286 (select .cse293 24)) (.cse283 (select .cse293 36)) (.cse284 (select .cse293 8)) (.cse285 (select .cse293 (+ .cse294 (- 8)))) (.cse276 (select .cse293 44)) (.cse288 (select .cse293 (+ (- 20) .cse294))) (.cse290 (select .cse293 (+ .cse294 (- 24)))) (.cse278 (select .cse293 (+ (- 28) .cse294))) (.cse280 (select .cse293 0))) (let ((.cse272 (div (+ .cse291 .cse273 .cse279 .cse289 .cse275 .cse274 .cse277 (- 85899345920) .cse282 .cse287 .cse281 .cse292 .cse286 .cse283 .cse284 .cse285 .cse276 .cse288 .cse290 .cse278 .cse280) 20)) (.cse271 (div (+ (* .cse273 (- 1)) (* .cse274 (- 1)) (* .cse275 (- 1)) (* .cse276 (- 1)) (* .cse277 (- 1)) 85899345920 (* .cse278 (- 1)) (* .cse279 (- 1)) (* .cse280 (- 1)) (* .cse281 (- 1)) (* .cse282 (- 1)) (* .cse283 (- 1)) (* .cse284 (- 1)) (* .cse285 (- 1)) (* .cse286 (- 1)) (* .cse287 (- 1)) (* .cse288 (- 1)) (* .cse289 (- 1)) (* .cse290 (- 1)) (* .cse291 (- 1)) (* .cse292 (- 1))) (- 20)))) (and (< (+ (div (+ (- 1) (* .cse271 (- 1))) (- 4294967296)) |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879|) (+ (div (+ .cse272 4294967297) 4294967296) |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_986_786|)) (<= (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_986_786|) (+ .cse272 4294967296)) (< .cse271 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879|))))))) (exists ((|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674_1451| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674| Int)) (let ((.cse336 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse337 (* avg_~i~0 4))) (let ((.cse326 (select .cse336 (+ (- 16) .cse337))) (.cse316 (select .cse336 .cse337)) (.cse333 (select .cse336 (+ .cse337 (- 24)))) (.cse319 (select .cse336 4)) (.cse332 (select .cse336 (+ (- 20) .cse337))) (.cse324 (select .cse336 32)) (.cse327 (select .cse336 24)) (.cse330 (select .cse336 (+ .cse337 (- 8)))) (.cse329 (select .cse336 8)) (.cse328 (select .cse336 36)) (.cse323 (select .cse336 20)) (.cse325 (select .cse336 16)) (.cse335 (select .cse336 0)) (.cse318 (select .cse336 40)) (.cse334 (select .cse336 (+ (- 28) .cse337))) (.cse322 (select .cse336 (+ (- 4) .cse337))) (.cse331 (select .cse336 44)) (.cse320 (select .cse336 28)) (.cse321 (select .cse336 12)) (.cse317 (select .cse336 (+ (- 12) .cse337)))) (let ((.cse296 (* .cse317 (- 1))) (.cse297 (* .cse321 (- 1))) (.cse298 (* .cse320 (- 1))) (.cse299 (* .cse331 (- 1))) (.cse300 (* .cse322 (- 1))) (.cse301 (* .cse334 (- 1))) (.cse302 (* .cse318 (- 1))) (.cse303 (* .cse335 (- 1))) (.cse304 (* .cse325 (- 1))) (.cse305 (* .cse323 (- 1))) (.cse306 (* .cse328 (- 1))) (.cse307 (* .cse329 (- 1))) (.cse308 (* .cse330 (- 1))) (.cse309 (* .cse327 (- 1))) (.cse310 (* .cse324 (- 1))) (.cse311 (* .cse332 (- 1))) (.cse312 (* .cse319 (- 1))) (.cse313 (* .cse333 (- 1))) (.cse314 (* .cse316 (- 1))) (.cse315 (* .cse326 (- 1))) (.cse295 (+ .cse316 .cse317 .cse318 .cse319 .cse320 .cse321 .cse322 .cse323 .cse324 .cse325 .cse326 .cse327 .cse328 .cse329 .cse330 .cse331 .cse332 .cse333 .cse334 .cse335))) (and (< |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674_1451| (+ |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674| 1)) (<= (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674|) (+ (div .cse295 20) 1)) (< (div (+ (* (div (+ .cse296 .cse297 .cse298 .cse299 (- 1) .cse300 .cse301 .cse302 .cse303 .cse304 .cse305 .cse306 .cse307 .cse308 .cse309 .cse310 .cse311 .cse312 .cse313 .cse314 .cse315) (- 20)) (- 1)) 4294967295) (- 4294967296)) (+ (div (+ (div (+ .cse316 .cse317 .cse318 .cse319 .cse320 .cse321 .cse322 .cse323 .cse324 .cse325 .cse326 .cse327 .cse328 .cse329 .cse330 .cse331 (- 85899345900) .cse332 .cse333 .cse334 .cse335) 20) 2147483648) 4294967296) 1)) (< (div (+ .cse296 .cse297 .cse298 .cse299 .cse300 .cse301 .cse302 .cse303 .cse304 .cse305 .cse306 .cse307 .cse308 .cse309 .cse310 .cse311 .cse312 85899345919 .cse313 .cse314 .cse315) (- 20)) (+ (div (+ .cse316 .cse317 .cse318 .cse319 .cse320 .cse321 .cse322 .cse323 .cse324 .cse325 .cse326 .cse327 .cse328 .cse329 .cse330 (- 85899345901) .cse331 .cse332 .cse333 .cse334 .cse335) 20) 1)) (< (div (+ .cse296 .cse297 .cse298 .cse299 .cse300 .cse301 19 .cse302 .cse303 .cse304 .cse305 .cse306 .cse307 .cse308 .cse309 .cse310 .cse311 .cse312 .cse313 .cse314 .cse315) (- 20)) (+ 4294967295 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674_1451|))) (< .cse295 0))))))) (<= 19 avg_~i~0) (<= avg_~i~0 19))) is different from true