./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Fibonacci03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Fibonacci03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:59:27,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:59:27,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:59:27,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:59:27,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:59:27,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:59:27,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:59:27,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:59:27,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:59:27,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:59:27,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:59:27,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:59:27,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:59:27,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:59:27,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:59:27,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:59:27,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:59:27,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:59:27,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:59:27,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:59:27,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:59:27,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:59:27,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:59:27,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:59:27,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:59:27,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:59:27,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:59:27,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:59:27,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:59:27,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:59:27,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:59:27,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:59:27,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:59:27,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:59:27,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:59:27,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:59:27,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:59:27,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:59:27,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:59:27,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:59:27,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:59:27,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 20:59:27,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:59:27,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:59:27,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:59:27,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:59:27,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:59:27,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:59:27,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:59:27,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:59:27,357 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:59:27,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:59:27,358 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:59:27,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:59:27,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:59:27,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:59:27,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:59:27,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:59:27,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:59:27,359 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:59:27,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:59:27,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:59:27,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:59:27,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:59:27,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:59:27,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:59:27,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:59:27,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:59:27,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:59:27,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:59:27,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:59:27,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:59:27,362 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:59:27,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:59:27,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:59:27,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:59:27,362 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_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 [2021-12-06 20:59:27,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:59:27,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:59:27,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:59:27,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:59:27,567 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:59:27,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/recursive/Fibonacci03.c [2021-12-06 20:59:27,607 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/data/1f1c1f708/4013dc77c3114451987504661544162f/FLAG9f3231fbe [2021-12-06 20:59:27,975 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:59:27,976 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/sv-benchmarks/c/recursive/Fibonacci03.c [2021-12-06 20:59:27,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/data/1f1c1f708/4013dc77c3114451987504661544162f/FLAG9f3231fbe [2021-12-06 20:59:27,989 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/data/1f1c1f708/4013dc77c3114451987504661544162f [2021-12-06 20:59:27,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:59:27,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:59:27,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:59:27,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:59:27,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:59:27,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:59:27" (1/1) ... [2021-12-06 20:59:27,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237e0ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:27, skipping insertion in model container [2021-12-06 20:59:27,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:59:27" (1/1) ... [2021-12-06 20:59:28,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:59:28,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:59:28,125 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_e6011a4e-ee8c-464c-a126-a17723a74a6c/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2021-12-06 20:59:28,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:59:28,134 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:59:28,144 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_e6011a4e-ee8c-464c-a126-a17723a74a6c/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2021-12-06 20:59:28,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:59:28,154 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:59:28,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28 WrapperNode [2021-12-06 20:59:28,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:59:28,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:59:28,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:59:28,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:59:28,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,177 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-12-06 20:59:28,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:59:28,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:59:28,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:59:28,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:59:28,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:59:28,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:59:28,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:59:28,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:59:28,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (1/1) ... [2021-12-06 20:59:28,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:59:28,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:59:28,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:59:28,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:59:28,254 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2021-12-06 20:59:28,255 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2021-12-06 20:59:28,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:59:28,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:59:28,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:59:28,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:59:28,299 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:59:28,301 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:59:28,366 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:59:28,371 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:59:28,371 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 20:59:28,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:59:28 BoogieIcfgContainer [2021-12-06 20:59:28,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:59:28,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:59:28,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:59:28,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:59:28,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:59:27" (1/3) ... [2021-12-06 20:59:28,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2784f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:59:28, skipping insertion in model container [2021-12-06 20:59:28,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:59:28" (2/3) ... [2021-12-06 20:59:28,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2784f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:59:28, skipping insertion in model container [2021-12-06 20:59:28,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:59:28" (3/3) ... [2021-12-06 20:59:28,379 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2021-12-06 20:59:28,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:59:28,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:59:28,420 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:59:28,426 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:59:28,427 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:59:28,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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) [2021-12-06 20:59:28,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 20:59:28,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:59:28,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:59:28,444 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:59:28,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:59:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1939714822, now seen corresponding path program 1 times [2021-12-06 20:59:28,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:59:28,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364317668] [2021-12-06 20:59:28,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:28,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:59:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:28,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:59:28,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:59:28,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364317668] [2021-12-06 20:59:28,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364317668] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:59:28,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:59:28,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:59:28,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353990731] [2021-12-06 20:59:28,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:59:28,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:59:28,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:59:28,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:59:28,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:59:28,627 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:59:28,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:59:28,719 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2021-12-06 20:59:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:59:28,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-12-06 20:59:28,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:59:28,730 INFO L225 Difference]: With dead ends: 32 [2021-12-06 20:59:28,730 INFO L226 Difference]: Without dead ends: 19 [2021-12-06 20:59:28,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:59:28,737 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:59:28,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 53 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:59:28,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-06 20:59:28,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-06 20:59:28,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-06 20:59:28,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-12-06 20:59:28,772 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2021-12-06 20:59:28,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:59:28,773 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-12-06 20:59:28,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:59:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-12-06 20:59:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:59:28,774 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:59:28,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:59:28,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:59:28,775 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:59:28,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:59:28,776 INFO L85 PathProgramCache]: Analyzing trace with hash 692912656, now seen corresponding path program 1 times [2021-12-06 20:59:28,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:59:28,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514269923] [2021-12-06 20:59:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:28,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:59:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:28,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:59:28,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:59:28,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514269923] [2021-12-06 20:59:28,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514269923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:59:28,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:59:28,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:59:28,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297884888] [2021-12-06 20:59:28,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:59:28,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:59:28,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:59:28,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:59:28,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:59:28,842 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:59:28,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:59:28,885 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-12-06 20:59:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:59:28,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-06 20:59:28,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:59:28,886 INFO L225 Difference]: With dead ends: 25 [2021-12-06 20:59:28,887 INFO L226 Difference]: Without dead ends: 21 [2021-12-06 20:59:28,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:59:28,889 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:59:28,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 36 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:59:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-06 20:59:28,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-12-06 20:59:28,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-06 20:59:28,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-12-06 20:59:28,897 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2021-12-06 20:59:28,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:59:28,897 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-12-06 20:59:28,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:59:28,898 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-12-06 20:59:28,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 20:59:28,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:59:28,899 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:59:28,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:59:28,900 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:59:28,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:59:28,900 INFO L85 PathProgramCache]: Analyzing trace with hash 453332055, now seen corresponding path program 1 times [2021-12-06 20:59:28,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:59:28,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466432432] [2021-12-06 20:59:28,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:28,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:59:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:28,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:28,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:28,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:59:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 20:59:28,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:59:28,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466432432] [2021-12-06 20:59:28,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466432432] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:59:28,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6564197] [2021-12-06 20:59:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:28,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:28,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:59:28,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:59:28,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 20:59:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:59:29,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:59:29,119 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 20:59:29,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:59:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 20:59:29,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6564197] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:59:29,262 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:59:29,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2021-12-06 20:59:29,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86434027] [2021-12-06 20:59:29,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:59:29,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 20:59:29,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:59:29,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 20:59:29,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:59:29,264 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2021-12-06 20:59:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:59:29,379 INFO L93 Difference]: Finished difference Result 47 states and 70 transitions. [2021-12-06 20:59:29,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:59:29,379 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) Word has length 24 [2021-12-06 20:59:29,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:59:29,380 INFO L225 Difference]: With dead ends: 47 [2021-12-06 20:59:29,380 INFO L226 Difference]: Without dead ends: 30 [2021-12-06 20:59:29,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-06 20:59:29,382 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 30 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:59:29,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 69 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:59:29,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-12-06 20:59:29,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-12-06 20:59:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2021-12-06 20:59:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2021-12-06 20:59:29,389 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 42 transitions. Word has length 24 [2021-12-06 20:59:29,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:59:29,390 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 42 transitions. [2021-12-06 20:59:29,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2021-12-06 20:59:29,390 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2021-12-06 20:59:29,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 20:59:29,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:59:29,392 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:59:29,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:59:29,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:29,594 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:59:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:59:29,597 INFO L85 PathProgramCache]: Analyzing trace with hash -872442578, now seen corresponding path program 1 times [2021-12-06 20:59:29,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:59:29,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669881372] [2021-12-06 20:59:29,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:29,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:59:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,809 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 44 proven. 63 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-12-06 20:59:29,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:59:29,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669881372] [2021-12-06 20:59:29,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669881372] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:59:29,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832787996] [2021-12-06 20:59:29,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:29,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:29,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:59:29,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:59:29,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 20:59:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:29,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:59:29,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:59:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-06 20:59:29,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:59:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-12-06 20:59:30,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832787996] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:59:30,172 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:59:30,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 18 [2021-12-06 20:59:30,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848137734] [2021-12-06 20:59:30,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:59:30,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 20:59:30,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:59:30,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 20:59:30,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-12-06 20:59:30,174 INFO L87 Difference]: Start difference. First operand 30 states and 42 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2021-12-06 20:59:30,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:59:30,314 INFO L93 Difference]: Finished difference Result 74 states and 124 transitions. [2021-12-06 20:59:30,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 20:59:30,315 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) Word has length 66 [2021-12-06 20:59:30,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:59:30,317 INFO L225 Difference]: With dead ends: 74 [2021-12-06 20:59:30,317 INFO L226 Difference]: Without dead ends: 45 [2021-12-06 20:59:30,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2021-12-06 20:59:30,319 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 58 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:59:30,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 110 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:59:30,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-06 20:59:30,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-12-06 20:59:30,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (24), 9 states have call predecessors, (24), 7 states have call successors, (24) [2021-12-06 20:59:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 67 transitions. [2021-12-06 20:59:30,328 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 67 transitions. Word has length 66 [2021-12-06 20:59:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:59:30,328 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 67 transitions. [2021-12-06 20:59:30,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2021-12-06 20:59:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2021-12-06 20:59:30,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-06 20:59:30,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:59:30,333 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 17, 12, 12, 12, 12, 12, 12, 12, 8, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:59:30,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 20:59:30,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:30,535 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:59:30,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:59:30,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1668610484, now seen corresponding path program 2 times [2021-12-06 20:59:30,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:59:30,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711549218] [2021-12-06 20:59:30,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:30,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:59:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:59:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:59:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:59:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:59:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 253 proven. 368 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2021-12-06 20:59:30,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:59:30,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711549218] [2021-12-06 20:59:30,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711549218] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:59:30,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434721869] [2021-12-06 20:59:30,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:59:30,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:30,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:59:30,874 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:59:30,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 20:59:30,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:59:30,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:59:30,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 20:59:30,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:59:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 67 proven. 459 refuted. 0 times theorem prover too weak. 1074 trivial. 0 not checked. [2021-12-06 20:59:31,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:59:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 67 proven. 485 refuted. 0 times theorem prover too weak. 1048 trivial. 0 not checked. [2021-12-06 20:59:31,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434721869] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:59:31,713 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:59:31,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 13] total 23 [2021-12-06 20:59:31,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777857180] [2021-12-06 20:59:31,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:59:31,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-06 20:59:31,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:59:31,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-06 20:59:31,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2021-12-06 20:59:31,716 INFO L87 Difference]: Start difference. First operand 45 states and 67 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) [2021-12-06 20:59:31,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:59:31,986 INFO L93 Difference]: Finished difference Result 116 states and 215 transitions. [2021-12-06 20:59:31,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-06 20:59:31,986 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) Word has length 172 [2021-12-06 20:59:31,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:59:31,989 INFO L225 Difference]: With dead ends: 116 [2021-12-06 20:59:31,989 INFO L226 Difference]: Without dead ends: 73 [2021-12-06 20:59:31,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=438, Invalid=1122, Unknown=0, NotChecked=0, Total=1560 [2021-12-06 20:59:31,991 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 96 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:59:31,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 137 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:59:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-06 20:59:32,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2021-12-06 20:59:32,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (37), 13 states have call predecessors, (37), 11 states have call successors, (37) [2021-12-06 20:59:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 100 transitions. [2021-12-06 20:59:32,002 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 100 transitions. Word has length 172 [2021-12-06 20:59:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:59:32,002 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 100 transitions. [2021-12-06 20:59:32,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) [2021-12-06 20:59:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 100 transitions. [2021-12-06 20:59:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-12-06 20:59:32,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:59:32,008 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:59:32,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 20:59:32,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:32,210 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:59:32,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:59:32,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2146373423, now seen corresponding path program 3 times [2021-12-06 20:59:32,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:59:32,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041485160] [2021-12-06 20:59:32,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:32,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:59:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 20:59:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 20:59:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 20:59:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 844 proven. 1612 refuted. 0 times theorem prover too weak. 4664 trivial. 0 not checked. [2021-12-06 20:59:32,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:59:32,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041485160] [2021-12-06 20:59:32,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041485160] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:59:32,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541842566] [2021-12-06 20:59:32,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 20:59:32,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:32,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:59:32,900 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:59:32,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 20:59:32,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-12-06 20:59:32,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:59:32,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 20:59:32,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:59:33,252 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 986 proven. 214 refuted. 0 times theorem prover too weak. 5920 trivial. 0 not checked. [2021-12-06 20:59:33,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:59:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 986 proven. 248 refuted. 0 times theorem prover too weak. 5886 trivial. 0 not checked. [2021-12-06 20:59:34,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541842566] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:59:34,045 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:59:34,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 9, 13] total 33 [2021-12-06 20:59:34,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588613576] [2021-12-06 20:59:34,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:59:34,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-06 20:59:34,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:59:34,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-06 20:59:34,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2021-12-06 20:59:34,048 INFO L87 Difference]: Start difference. First operand 63 states and 100 transitions. Second operand has 33 states, 33 states have (on average 2.393939393939394) internal successors, (79), 33 states have internal predecessors, (79), 16 states have call successors, (25), 1 states have call predecessors, (25), 14 states have return successors, (37), 29 states have call predecessors, (37), 16 states have call successors, (37) [2021-12-06 20:59:34,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:59:34,480 INFO L93 Difference]: Finished difference Result 187 states and 400 transitions. [2021-12-06 20:59:34,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-12-06 20:59:34,481 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.393939393939394) internal successors, (79), 33 states have internal predecessors, (79), 16 states have call successors, (25), 1 states have call predecessors, (25), 14 states have return successors, (37), 29 states have call predecessors, (37), 16 states have call successors, (37) Word has length 352 [2021-12-06 20:59:34,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:59:34,484 INFO L225 Difference]: With dead ends: 187 [2021-12-06 20:59:34,484 INFO L226 Difference]: Without dead ends: 126 [2021-12-06 20:59:34,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 792 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1066 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=754, Invalid=2552, Unknown=0, NotChecked=0, Total=3306 [2021-12-06 20:59:34,487 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 222 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:59:34,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 219 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 20:59:34,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-12-06 20:59:34,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2021-12-06 20:59:34,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 74 states have internal predecessors, (86), 20 states have call successors, (20), 15 states have call predecessors, (20), 10 states have return successors, (51), 18 states have call predecessors, (51), 20 states have call successors, (51) [2021-12-06 20:59:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2021-12-06 20:59:34,500 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 352 [2021-12-06 20:59:34,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:59:34,501 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2021-12-06 20:59:34,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.393939393939394) internal successors, (79), 33 states have internal predecessors, (79), 16 states have call successors, (25), 1 states have call predecessors, (25), 14 states have return successors, (37), 29 states have call predecessors, (37), 16 states have call successors, (37) [2021-12-06 20:59:34,501 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2021-12-06 20:59:34,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2021-12-06 20:59:34,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:59:34,525 INFO L514 BasicCegarLoop]: trace histogram [137, 137, 111, 68, 68, 68, 68, 68, 68, 68, 43, 26, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:59:34,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 20:59:34,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-06 20:59:34,727 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:59:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:59:34,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1748422918, now seen corresponding path program 4 times [2021-12-06 20:59:34,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:59:34,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784971321] [2021-12-06 20:59:34,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:34,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:59:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 20:59:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 20:59:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-06 20:59:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 20:59:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-12-06 20:59:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 20:59:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 20:59:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-06 20:59:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:59:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-12-06 20:59:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 52481 backedges. 5941 proven. 6883 refuted. 0 times theorem prover too weak. 39657 trivial. 0 not checked. [2021-12-06 20:59:36,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:59:36,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784971321] [2021-12-06 20:59:36,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784971321] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:59:36,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828019829] [2021-12-06 20:59:36,858 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 20:59:36,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:36,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:59:36,859 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:59:36,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 20:59:37,026 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 20:59:37,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:59:37,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-06 20:59:37,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:59:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 52481 backedges. 4081 proven. 7576 refuted. 0 times theorem prover too weak. 40824 trivial. 0 not checked. [2021-12-06 20:59:37,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:59:41,590 INFO L134 CoverageAnalysis]: Checked inductivity of 52481 backedges. 4081 proven. 7723 refuted. 0 times theorem prover too weak. 40677 trivial. 0 not checked. [2021-12-06 20:59:41,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828019829] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:59:41,590 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:59:41,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 21, 35] total 52 [2021-12-06 20:59:41,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931966154] [2021-12-06 20:59:41,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:59:41,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-12-06 20:59:41,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:59:41,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-12-06 20:59:41,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=2066, Unknown=0, NotChecked=0, Total=2652 [2021-12-06 20:59:41,595 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand has 52 states, 52 states have (on average 2.730769230769231) internal successors, (142), 52 states have internal predecessors, (142), 49 states have call successors, (55), 1 states have call predecessors, (55), 18 states have return successors, (83), 33 states have call predecessors, (83), 49 states have call successors, (83) [2021-12-06 20:59:42,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:59:42,137 INFO L93 Difference]: Finished difference Result 258 states and 509 transitions. [2021-12-06 20:59:42,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-06 20:59:42,137 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.730769230769231) internal successors, (142), 52 states have internal predecessors, (142), 49 states have call successors, (55), 1 states have call predecessors, (55), 18 states have return successors, (83), 33 states have call predecessors, (83), 49 states have call successors, (83) Word has length 938 [2021-12-06 20:59:42,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:59:42,141 INFO L225 Difference]: With dead ends: 258 [2021-12-06 20:59:42,141 INFO L226 Difference]: Without dead ends: 154 [2021-12-06 20:59:42,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2218 GetRequests, 2134 SyntacticMatches, 4 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2211 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1562, Invalid=5080, Unknown=0, NotChecked=0, Total=6642 [2021-12-06 20:59:42,144 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 427 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 877 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:59:42,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 274 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [877 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:59:42,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-12-06 20:59:42,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2021-12-06 20:59:42,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 91 states have (on average 1.032967032967033) internal successors, (94), 88 states have internal predecessors, (94), 25 states have call successors, (25), 20 states have call predecessors, (25), 10 states have return successors, (64), 18 states have call predecessors, (64), 25 states have call successors, (64) [2021-12-06 20:59:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2021-12-06 20:59:42,158 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 938 [2021-12-06 20:59:42,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:59:42,159 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2021-12-06 20:59:42,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.730769230769231) internal successors, (142), 52 states have internal predecessors, (142), 49 states have call successors, (55), 1 states have call predecessors, (55), 18 states have return successors, (83), 33 states have call predecessors, (83), 49 states have call successors, (83) [2021-12-06 20:59:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2021-12-06 20:59:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2021-12-06 20:59:42,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:59:42,164 INFO L514 BasicCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:59:42,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 20:59:42,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:42,366 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:59:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:59:42,368 INFO L85 PathProgramCache]: Analyzing trace with hash -425340118, now seen corresponding path program 5 times [2021-12-06 20:59:42,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:59:42,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317276664] [2021-12-06 20:59:42,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:59:42,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:59:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 20:59:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 20:59:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-06 20:59:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 20:59:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-12-06 20:59:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 20:59:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 20:59:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 20:59:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 20:59:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:59:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 20:59:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:59:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:59:44,064 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2021-12-06 20:59:44,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:59:44,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317276664] [2021-12-06 20:59:44,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317276664] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:59:44,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358666471] [2021-12-06 20:59:44,064 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 20:59:44,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:59:44,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:59:44,065 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:59:44,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 20:59:44,407 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 93 check-sat command(s) [2021-12-06 20:59:44,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:59:44,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1681 conjuncts, 220 conjunts are in the unsatisfiable core [2021-12-06 20:59:44,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:59:45,105 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2021-12-06 20:59:45,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:00:14,439 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2021-12-06 21:00:14,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358666471] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:00:14,439 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 21:00:14,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 36 [2021-12-06 21:00:14,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901447834] [2021-12-06 21:00:14,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 21:00:14,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-12-06 21:00:14,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:00:14,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-12-06 21:00:14,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=1013, Unknown=0, NotChecked=0, Total=1260 [2021-12-06 21:00:14,442 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 19 states have internal predecessors, (43), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2021-12-06 21:00:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:00:14,515 INFO L93 Difference]: Finished difference Result 128 states and 184 transitions. [2021-12-06 21:00:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-06 21:00:14,516 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 19 states have internal predecessors, (43), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) Word has length 747 [2021-12-06 21:00:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:00:14,517 INFO L225 Difference]: With dead ends: 128 [2021-12-06 21:00:14,517 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 21:00:14,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1932 GetRequests, 1897 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=271, Invalid=1061, Unknown=0, NotChecked=0, Total=1332 [2021-12-06 21:00:14,519 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:00:14,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 296 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:00:14,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 21:00:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 21:00:14,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:00:14,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 21:00:14,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 747 [2021-12-06 21:00:14,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:00:14,520 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:00:14,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 19 states have internal predecessors, (43), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2021-12-06 21:00:14,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 21:00:14,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 21:00:14,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 21:00:14,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 21:00:14,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:00:14,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 21:00:15,116 INFO L858 garLoopResultBuilder]: For program point fibonacciFINAL(lines 16 24) no Hoare annotation was computed. [2021-12-06 21:00:15,116 INFO L861 garLoopResultBuilder]: At program point fibonacciENTRY(lines 16 24) the Hoare annotation is: true [2021-12-06 21:00:15,116 INFO L854 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (and (<= 2 fibonacci_~n) (= fibonacci_~n |fibonacci_#in~n|)) [2021-12-06 21:00:15,116 INFO L858 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-12-06 21:00:15,116 INFO L854 garLoopResultBuilder]: At program point L22-2(line 22) the Hoare annotation is: (let ((.cse0 (<= 1 |fibonacci_#t~ret4|)) (.cse2 (<= 6 fibonacci_~n)) (.cse1 (= fibonacci_~n |fibonacci_#in~n|))) (or (and .cse0 (<= 3 fibonacci_~n) .cse1 (<= |fibonacci_#in~n| 3)) (and (<= 3 |fibonacci_#t~ret4|) (<= 5 fibonacci_~n) .cse1 (<= |fibonacci_#in~n| 5)) (and (<= 21 |fibonacci_#t~ret4|) .cse2 .cse1) (and .cse2 (<= |fibonacci_#in~n| 8) (<= 13 |fibonacci_#t~ret4|) .cse1) (and (<= 8 |fibonacci_#t~ret4|) (<= fibonacci_~n 7) .cse2 .cse1) (and .cse0 (<= |fibonacci_#in~n| 2) (<= 2 fibonacci_~n) .cse1) (and (<= 2 |fibonacci_#t~ret4|) (<= 4 |fibonacci_#in~n|) (<= |fibonacci_#in~n| 4) .cse1) (and (<= 5 |fibonacci_#t~ret4|) .cse2 (<= fibonacci_~n 6) .cse1))) [2021-12-06 21:00:15,116 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2021-12-06 21:00:15,117 INFO L858 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2021-12-06 21:00:15,117 INFO L858 garLoopResultBuilder]: For program point fibonacciEXIT(lines 16 24) no Hoare annotation was computed. [2021-12-06 21:00:15,117 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 23) no Hoare annotation was computed. [2021-12-06 21:00:15,117 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-12-06 21:00:15,117 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 21:00:15,117 INFO L861 garLoopResultBuilder]: At program point L32(line 32) the Hoare annotation is: true [2021-12-06 21:00:15,117 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 21:00:15,117 INFO L858 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2021-12-06 21:00:15,117 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 21:00:15,117 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed. [2021-12-06 21:00:15,118 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 21:00:15,118 INFO L861 garLoopResultBuilder]: At program point L27(lines 27 38) the Hoare annotation is: true [2021-12-06 21:00:15,118 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2021-12-06 21:00:15,118 INFO L858 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-12-06 21:00:15,121 INFO L732 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2021-12-06 21:00:15,122 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 21:00:15,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 09:00:15 BoogieIcfgContainer [2021-12-06 21:00:15,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 21:00:15,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 21:00:15,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 21:00:15,130 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 21:00:15,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:59:28" (3/4) ... [2021-12-06 21:00:15,133 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 21:00:15,139 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibonacci [2021-12-06 21:00:15,142 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 21:00:15,143 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 21:00:15,143 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 21:00:15,143 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 21:00:15,170 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 21:00:15,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 21:00:15,171 INFO L158 Benchmark]: Toolchain (without parser) took 47178.16ms. Allocated memory was 79.7MB in the beginning and 272.6MB in the end (delta: 192.9MB). Free memory was 57.1MB in the beginning and 188.2MB in the end (delta: -131.1MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2021-12-06 21:00:15,171 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 79.7MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:00:15,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.02ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 56.9MB in the beginning and 82.7MB in the end (delta: -25.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 21:00:15,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.82ms. Allocated memory is still 107.0MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:00:15,172 INFO L158 Benchmark]: Boogie Preprocessor took 12.07ms. Allocated memory is still 107.0MB. Free memory was 81.0MB in the beginning and 80.3MB in the end (delta: 732.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:00:15,173 INFO L158 Benchmark]: RCFGBuilder took 182.66ms. Allocated memory is still 107.0MB. Free memory was 80.3MB in the beginning and 71.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 21:00:15,173 INFO L158 Benchmark]: TraceAbstraction took 46755.17ms. Allocated memory was 107.0MB in the beginning and 272.6MB in the end (delta: 165.7MB). Free memory was 71.1MB in the beginning and 190.3MB in the end (delta: -119.2MB). Peak memory consumption was 177.4MB. Max. memory is 16.1GB. [2021-12-06 21:00:15,173 INFO L158 Benchmark]: Witness Printer took 40.92ms. Allocated memory is still 272.6MB. Free memory was 190.3MB in the beginning and 188.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:00:15,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 79.7MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.02ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 56.9MB in the beginning and 82.7MB in the end (delta: -25.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.82ms. Allocated memory is still 107.0MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.07ms. Allocated memory is still 107.0MB. Free memory was 81.0MB in the beginning and 80.3MB in the end (delta: 732.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 182.66ms. Allocated memory is still 107.0MB. Free memory was 80.3MB in the beginning and 71.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 46755.17ms. Allocated memory was 107.0MB in the beginning and 272.6MB in the end (delta: 165.7MB). Free memory was 71.1MB in the beginning and 190.3MB in the end (delta: -119.2MB). Peak memory consumption was 177.4MB. Max. memory is 16.1GB. * Witness Printer took 40.92ms. Allocated memory is still 272.6MB. Free memory was 190.3MB in the beginning and 188.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.7s, OverallIterations: 8, TraceHistogramMax: 137, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 875 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 851 mSDsluCounter, 1194 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 992 mSDsCounter, 1495 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2050 IncrementalHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1495 mSolverCounterUnsat, 202 mSDtfsCounter, 2050 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5680 GetRequests, 5411 SyntacticMatches, 11 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4021 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=7, InterpolantAutomatonStates: 181, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 57 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 200 PreInvPairs, 303 NumberOfFragments, 112 HoareAnnotationTreeSize, 200 FomulaSimplifications, 949 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 2705 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 41.7s InterpolantComputationTime, 4621 NumberOfCodeBlocks, 4333 NumberOfCodeBlocksAsserted, 129 NumberOfCheckSat, 6900 ConstructedInterpolants, 0 QuantifiedInterpolants, 11736 SizeOfPredicates, 32 NumberOfNonLiveVariables, 4470 ConjunctsInSsa, 292 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 242864/283494 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 21:00:15,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6011a4e-ee8c-464c-a126-a17723a74a6c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE