./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G --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 052d87c43f9a6a303e543fa72a6072828b82ea75a73030e4fb80f0f24076f245 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:35:43,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:35:43,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:35:43,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:35:43,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:35:43,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:35:43,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:35:43,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:35:43,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:35:43,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:35:43,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:35:43,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:35:43,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:35:43,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:35:43,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:35:43,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:35:43,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:35:43,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:35:43,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:35:43,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:35:43,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:35:43,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:35:43,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:35:43,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:35:43,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:35:43,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:35:43,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:35:43,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:35:43,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:35:43,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:35:43,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:35:43,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:35:43,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:35:43,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:35:43,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:35:43,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:35:43,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:35:43,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:35:43,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:35:43,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:35:43,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:35:43,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:35:43,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:35:43,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:35:43,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:35:43,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:35:43,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:35:43,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:35:43,490 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:35:43,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:35:43,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:35:43,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:35:43,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:35:43,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:35:43,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:35:43,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:35:43,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:35:43,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:35:43,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:35:43,492 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:35:43,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:35:43,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:35:43,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:35:43,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:35:43,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:35:43,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:35:43,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:35:43,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:35:43,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:35:43,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:35:43,494 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:35:43,495 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:35:43,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:35:43,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:35:43,495 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_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 052d87c43f9a6a303e543fa72a6072828b82ea75a73030e4fb80f0f24076f245 [2021-11-23 13:35:43,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:35:43,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:35:43,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:35:43,778 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:35:43,779 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:35:43,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/eca-rers2012/Problem14_label24.c [2021-11-23 13:35:43,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/data/1e201a68c/03d529729fd04196938c67be07e0d785/FLAG0cfeaabf7 [2021-11-23 13:35:44,632 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:35:44,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/sv-benchmarks/c/eca-rers2012/Problem14_label24.c [2021-11-23 13:35:44,654 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/data/1e201a68c/03d529729fd04196938c67be07e0d785/FLAG0cfeaabf7 [2021-11-23 13:35:44,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/data/1e201a68c/03d529729fd04196938c67be07e0d785 [2021-11-23 13:35:44,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:35:44,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:35:44,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:35:44,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:35:44,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:35:44,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:44" (1/1) ... [2021-11-23 13:35:44,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a524e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:44, skipping insertion in model container [2021-11-23 13:35:44,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:44" (1/1) ... [2021-11-23 13:35:44,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:35:44,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:35:45,225 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_369e0d97-aeb8-4563-b1dd-5feff4e78c88/sv-benchmarks/c/eca-rers2012/Problem14_label24.c[4340,4353] [2021-11-23 13:35:45,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:35:45,506 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:35:45,557 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_369e0d97-aeb8-4563-b1dd-5feff4e78c88/sv-benchmarks/c/eca-rers2012/Problem14_label24.c[4340,4353] [2021-11-23 13:35:45,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:35:45,756 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:35:45,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45 WrapperNode [2021-11-23 13:35:45,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:35:45,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:35:45,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:35:45,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:35:45,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:45,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:45,902 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-11-23 13:35:45,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:35:45,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:35:45,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:35:45,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:35:45,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:45,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:45,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:45,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:45,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:45,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:46,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:46,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:35:46,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:35:46,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:35:46,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:35:46,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (1/1) ... [2021-11-23 13:35:46,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:35:46,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:46,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:46,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:35:46,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:35:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:35:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:35:46,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:35:46,225 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:35:46,227 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:35:47,789 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:35:47,806 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:35:47,806 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 13:35:47,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:47 BoogieIcfgContainer [2021-11-23 13:35:47,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:35:47,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:35:47,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:35:47,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:35:47,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:35:44" (1/3) ... [2021-11-23 13:35:47,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f39ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:35:47, skipping insertion in model container [2021-11-23 13:35:47,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:45" (2/3) ... [2021-11-23 13:35:47,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f39ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:35:47, skipping insertion in model container [2021-11-23 13:35:47,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:47" (3/3) ... [2021-11-23 13:35:47,821 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2021-11-23 13:35:47,828 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:35:47,828 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:35:47,907 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:35:47,922 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:35:47,923 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:35:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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) [2021-11-23 13:35:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 13:35:47,979 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:47,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:47,981 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:47,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:47,988 INFO L85 PathProgramCache]: Analyzing trace with hash 751578873, now seen corresponding path program 1 times [2021-11-23 13:35:48,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:48,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918180932] [2021-11-23 13:35:48,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:48,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:48,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:48,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:48,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918180932] [2021-11-23 13:35:48,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918180932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:48,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:35:48,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:35:48,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592833653] [2021-11-23 13:35:48,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:48,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:35:48,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:48,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:35:48,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:35:48,539 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-23 13:35:50,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:50,582 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2021-11-23 13:35:50,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:35:50,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-23 13:35:50,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:50,604 INFO L225 Difference]: With dead ends: 850 [2021-11-23 13:35:50,605 INFO L226 Difference]: Without dead ends: 538 [2021-11-23 13:35:50,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:35:50,614 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 506 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:50,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 194 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-23 13:35:50,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-23 13:35:50,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-11-23 13:35:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 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) [2021-11-23 13:35:50,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-11-23 13:35:50,714 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 41 [2021-11-23 13:35:50,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:50,715 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-11-23 13:35:50,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-23 13:35:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-11-23 13:35:50,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 13:35:50,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:50,722 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:50,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:35:50,723 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:50,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:50,724 INFO L85 PathProgramCache]: Analyzing trace with hash 92265580, now seen corresponding path program 1 times [2021-11-23 13:35:50,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:50,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264496571] [2021-11-23 13:35:50,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:50,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:51,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:51,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264496571] [2021-11-23 13:35:51,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264496571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:51,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:35:51,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:35:51,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137042652] [2021-11-23 13:35:51,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:51,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:35:51,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:51,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:35:51,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:35:51,017 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-11-23 13:35:51,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:51,984 INFO L93 Difference]: Finished difference Result 1281 states and 1978 transitions. [2021-11-23 13:35:51,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:35:51,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-11-23 13:35:51,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:51,991 INFO L225 Difference]: With dead ends: 1281 [2021-11-23 13:35:51,992 INFO L226 Difference]: Without dead ends: 894 [2021-11-23 13:35:51,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:35:51,997 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 118 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:51,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 119 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 13:35:52,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-11-23 13:35:52,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 716. [2021-11-23 13:35:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.220979020979021) internal successors, (873), 715 states have internal predecessors, (873), 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) [2021-11-23 13:35:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 873 transitions. [2021-11-23 13:35:52,045 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 873 transitions. Word has length 121 [2021-11-23 13:35:52,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:52,045 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 873 transitions. [2021-11-23 13:35:52,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-11-23 13:35:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 873 transitions. [2021-11-23 13:35:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-23 13:35:52,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:52,057 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:52,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:35:52,057 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:52,058 INFO L85 PathProgramCache]: Analyzing trace with hash -538338920, now seen corresponding path program 1 times [2021-11-23 13:35:52,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:52,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659367658] [2021-11-23 13:35:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:52,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 77 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:52,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:52,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659367658] [2021-11-23 13:35:52,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659367658] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:35:52,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445033372] [2021-11-23 13:35:52,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:52,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:52,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:52,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:35:52,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:35:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:52,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:35:52,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:53,012 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-23 13:35:53,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:35:53,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445033372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:53,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:35:53,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-23 13:35:53,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325345472] [2021-11-23 13:35:53,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:53,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:35:53,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:53,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:35:53,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:35:53,017 INFO L87 Difference]: Start difference. First operand 716 states and 873 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2021-11-23 13:35:53,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:53,724 INFO L93 Difference]: Finished difference Result 1608 states and 2071 transitions. [2021-11-23 13:35:53,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:35:53,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2021-11-23 13:35:53,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:53,738 INFO L225 Difference]: With dead ends: 1608 [2021-11-23 13:35:53,738 INFO L226 Difference]: Without dead ends: 1072 [2021-11-23 13:35:53,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:35:53,747 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:53,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 85 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 13:35:53,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-11-23 13:35:53,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2021-11-23 13:35:53,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.211646136618141) internal successors, (1082), 893 states have internal predecessors, (1082), 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) [2021-11-23 13:35:53,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1082 transitions. [2021-11-23 13:35:53,792 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1082 transitions. Word has length 212 [2021-11-23 13:35:53,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:53,795 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1082 transitions. [2021-11-23 13:35:53,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2021-11-23 13:35:53,796 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1082 transitions. [2021-11-23 13:35:53,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-23 13:35:53,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:53,810 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:53,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:54,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:54,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:54,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:54,023 INFO L85 PathProgramCache]: Analyzing trace with hash 350300863, now seen corresponding path program 1 times [2021-11-23 13:35:54,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:54,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639982260] [2021-11-23 13:35:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:54,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:54,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:54,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639982260] [2021-11-23 13:35:54,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639982260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:54,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:35:54,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:35:54,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746738100] [2021-11-23 13:35:54,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:54,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:35:54,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:54,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:35:54,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:35:54,220 INFO L87 Difference]: Start difference. First operand 894 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2021-11-23 13:35:54,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:54,864 INFO L93 Difference]: Finished difference Result 1964 states and 2415 transitions. [2021-11-23 13:35:54,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:35:54,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2021-11-23 13:35:54,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:54,875 INFO L225 Difference]: With dead ends: 1964 [2021-11-23 13:35:54,875 INFO L226 Difference]: Without dead ends: 1250 [2021-11-23 13:35:54,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:35:54,886 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:54,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 58 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:35:54,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-11-23 13:35:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-11-23 13:35:54,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.1753402722177742) internal successors, (1468), 1249 states have internal predecessors, (1468), 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) [2021-11-23 13:35:54,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1468 transitions. [2021-11-23 13:35:54,934 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1468 transitions. Word has length 215 [2021-11-23 13:35:54,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:54,935 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1468 transitions. [2021-11-23 13:35:54,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2021-11-23 13:35:54,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1468 transitions. [2021-11-23 13:35:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-11-23 13:35:54,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:54,944 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:54,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:35:54,944 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:54,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:54,945 INFO L85 PathProgramCache]: Analyzing trace with hash -952795878, now seen corresponding path program 1 times [2021-11-23 13:35:54,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:54,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403321070] [2021-11-23 13:35:54,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:54,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 195 proven. 130 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-23 13:35:55,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:55,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403321070] [2021-11-23 13:35:55,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403321070] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:35:55,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132380609] [2021-11-23 13:35:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:55,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:55,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:55,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:35:55,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:35:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:55,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:35:55,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:56,156 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-23 13:35:56,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:35:56,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132380609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:56,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:35:56,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 13:35:56,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346253718] [2021-11-23 13:35:56,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:56,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:35:56,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:56,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:35:56,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:35:56,166 INFO L87 Difference]: Start difference. First operand 1250 states and 1468 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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) [2021-11-23 13:35:56,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:56,812 INFO L93 Difference]: Finished difference Result 2854 states and 3498 transitions. [2021-11-23 13:35:56,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:35:56,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2021-11-23 13:35:56,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:56,825 INFO L225 Difference]: With dead ends: 2854 [2021-11-23 13:35:56,825 INFO L226 Difference]: Without dead ends: 1962 [2021-11-23 13:35:56,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:35:56,828 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 65 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:56,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:35:56,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-11-23 13:35:56,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-11-23 13:35:56,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1662417134115248) internal successors, (2287), 1961 states have internal predecessors, (2287), 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) [2021-11-23 13:35:56,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2287 transitions. [2021-11-23 13:35:56,885 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2287 transitions. Word has length 375 [2021-11-23 13:35:56,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:56,886 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2287 transitions. [2021-11-23 13:35:56,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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) [2021-11-23 13:35:56,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2287 transitions. [2021-11-23 13:35:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-11-23 13:35:56,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:56,897 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:56,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:57,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:57,122 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:57,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:57,122 INFO L85 PathProgramCache]: Analyzing trace with hash 818186285, now seen corresponding path program 1 times [2021-11-23 13:35:57,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:57,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645291174] [2021-11-23 13:35:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:57,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:57,414 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2021-11-23 13:35:57,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:57,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645291174] [2021-11-23 13:35:57,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645291174] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:35:57,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059671829] [2021-11-23 13:35:57,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:57,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:57,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:57,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:35:57,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:35:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:57,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:35:57,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:58,623 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2021-11-23 13:35:58,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:35:58,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059671829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:58,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:35:58,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-11-23 13:35:58,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183604358] [2021-11-23 13:35:58,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:58,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:35:58,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:58,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:35:58,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:35:58,628 INFO L87 Difference]: Start difference. First operand 1962 states and 2287 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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) [2021-11-23 13:35:59,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:59,248 INFO L93 Difference]: Finished difference Result 2854 states and 3290 transitions. [2021-11-23 13:35:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:35:59,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 421 [2021-11-23 13:35:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:59,266 INFO L225 Difference]: With dead ends: 2854 [2021-11-23 13:35:59,267 INFO L226 Difference]: Without dead ends: 2852 [2021-11-23 13:35:59,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:35:59,271 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:59,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 28 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:35:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-11-23 13:35:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1784. [2021-11-23 13:35:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1402131239484015) internal successors, (2033), 1783 states have internal predecessors, (2033), 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) [2021-11-23 13:35:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2033 transitions. [2021-11-23 13:35:59,336 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2033 transitions. Word has length 421 [2021-11-23 13:35:59,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:59,337 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2033 transitions. [2021-11-23 13:35:59,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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) [2021-11-23 13:35:59,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2033 transitions. [2021-11-23 13:35:59,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2021-11-23 13:35:59,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:59,347 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:59,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:59,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 13:35:59,574 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:59,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:59,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1460043639, now seen corresponding path program 1 times [2021-11-23 13:35:59,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:59,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517628944] [2021-11-23 13:35:59,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:59,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-11-23 13:35:59,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:59,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517628944] [2021-11-23 13:35:59,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517628944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:59,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:35:59,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:35:59,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593494369] [2021-11-23 13:35:59,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:59,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:35:59,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:59,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:35:59,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:35:59,828 INFO L87 Difference]: Start difference. First operand 1784 states and 2033 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 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) [2021-11-23 13:36:00,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:00,550 INFO L93 Difference]: Finished difference Result 3417 states and 3936 transitions. [2021-11-23 13:36:00,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:36:00,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 423 [2021-11-23 13:36:00,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:00,562 INFO L225 Difference]: With dead ends: 3417 [2021-11-23 13:36:00,562 INFO L226 Difference]: Without dead ends: 1962 [2021-11-23 13:36:00,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:36:00,566 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:00,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 13:36:00,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-11-23 13:36:00,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-11-23 13:36:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.089736399326977) internal successors, (1943), 1783 states have internal predecessors, (1943), 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) [2021-11-23 13:36:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1943 transitions. [2021-11-23 13:36:00,621 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1943 transitions. Word has length 423 [2021-11-23 13:36:00,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:00,622 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1943 transitions. [2021-11-23 13:36:00,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 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) [2021-11-23 13:36:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1943 transitions. [2021-11-23 13:36:00,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-23 13:36:00,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:00,636 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:00,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 13:36:00,637 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:00,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:00,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1911071162, now seen corresponding path program 1 times [2021-11-23 13:36:00,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:00,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32743880] [2021-11-23 13:36:00,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:00,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:00,863 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-23 13:36:00,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:00,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32743880] [2021-11-23 13:36:00,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32743880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:00,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:00,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:36:00,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65117490] [2021-11-23 13:36:00,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:00,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:00,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:00,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:00,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:00,868 INFO L87 Difference]: Start difference. First operand 1784 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2021-11-23 13:36:01,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:01,465 INFO L93 Difference]: Finished difference Result 3922 states and 4347 transitions. [2021-11-23 13:36:01,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:01,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 434 [2021-11-23 13:36:01,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:01,481 INFO L225 Difference]: With dead ends: 3922 [2021-11-23 13:36:01,481 INFO L226 Difference]: Without dead ends: 2496 [2021-11-23 13:36:01,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:01,485 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:01,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:36:01,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-11-23 13:36:01,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2021-11-23 13:36:01,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.092184368737475) internal successors, (2725), 2495 states have internal predecessors, (2725), 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) [2021-11-23 13:36:01,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2725 transitions. [2021-11-23 13:36:01,551 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2725 transitions. Word has length 434 [2021-11-23 13:36:01,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:01,552 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2725 transitions. [2021-11-23 13:36:01,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2021-11-23 13:36:01,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2725 transitions. [2021-11-23 13:36:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-23 13:36:01,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:01,557 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:01,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 13:36:01,558 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:01,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash 360560095, now seen corresponding path program 1 times [2021-11-23 13:36:01,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:01,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963682819] [2021-11-23 13:36:01,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:01,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:01,763 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-23 13:36:01,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:01,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963682819] [2021-11-23 13:36:01,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963682819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:01,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:01,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:36:01,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959977860] [2021-11-23 13:36:01,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:01,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:01,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:01,766 INFO L87 Difference]: Start difference. First operand 2496 states and 2725 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2021-11-23 13:36:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:02,372 INFO L93 Difference]: Finished difference Result 5880 states and 6513 transitions. [2021-11-23 13:36:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 475 [2021-11-23 13:36:02,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:02,394 INFO L225 Difference]: With dead ends: 5880 [2021-11-23 13:36:02,394 INFO L226 Difference]: Without dead ends: 3742 [2021-11-23 13:36:02,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:02,400 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:02,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 50 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:36:02,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-11-23 13:36:02,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2021-11-23 13:36:02,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0828655439722) internal successors, (4051), 3741 states have internal predecessors, (4051), 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) [2021-11-23 13:36:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4051 transitions. [2021-11-23 13:36:02,505 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4051 transitions. Word has length 475 [2021-11-23 13:36:02,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:02,506 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4051 transitions. [2021-11-23 13:36:02,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2021-11-23 13:36:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4051 transitions. [2021-11-23 13:36:02,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2021-11-23 13:36:02,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:02,512 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:02,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 13:36:02,513 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:02,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:02,514 INFO L85 PathProgramCache]: Analyzing trace with hash 785388077, now seen corresponding path program 1 times [2021-11-23 13:36:02,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:02,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994335695] [2021-11-23 13:36:02,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:02,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-11-23 13:36:02,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:02,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994335695] [2021-11-23 13:36:02,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994335695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:02,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:02,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:36:02,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665683394] [2021-11-23 13:36:02,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:02,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:02,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:02,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:02,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:02,792 INFO L87 Difference]: Start difference. First operand 3742 states and 4051 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2021-11-23 13:36:03,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:03,394 INFO L93 Difference]: Finished difference Result 6948 states and 7546 transitions. [2021-11-23 13:36:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:03,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 511 [2021-11-23 13:36:03,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:03,417 INFO L225 Difference]: With dead ends: 6948 [2021-11-23 13:36:03,418 INFO L226 Difference]: Without dead ends: 3564 [2021-11-23 13:36:03,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:03,424 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:03,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 242 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:03,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-11-23 13:36:03,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-11-23 13:36:03,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.078578110383536) internal successors, (3459), 3207 states have internal predecessors, (3459), 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) [2021-11-23 13:36:03,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3459 transitions. [2021-11-23 13:36:03,516 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3459 transitions. Word has length 511 [2021-11-23 13:36:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:03,517 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3459 transitions. [2021-11-23 13:36:03,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2021-11-23 13:36:03,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3459 transitions. [2021-11-23 13:36:03,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2021-11-23 13:36:03,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:03,525 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:03,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 13:36:03,525 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:03,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:03,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1754446661, now seen corresponding path program 1 times [2021-11-23 13:36:03,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:03,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475234019] [2021-11-23 13:36:03,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:03,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 837 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-23 13:36:03,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:03,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475234019] [2021-11-23 13:36:03,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475234019] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:03,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835311835] [2021-11-23 13:36:03,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:03,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:03,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:36:03,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:36:03,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:36:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:04,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:36:04,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2021-11-23 13:36:05,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:36:05,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835311835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:05,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:36:05,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-23 13:36:05,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908496543] [2021-11-23 13:36:05,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:05,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:05,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:05,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:05,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:36:05,109 INFO L87 Difference]: Start difference. First operand 3208 states and 3459 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-11-23 13:36:05,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:05,669 INFO L93 Difference]: Finished difference Result 7126 states and 7693 transitions. [2021-11-23 13:36:05,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:05,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 630 [2021-11-23 13:36:05,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:05,689 INFO L225 Difference]: With dead ends: 7126 [2021-11-23 13:36:05,690 INFO L226 Difference]: Without dead ends: 3386 [2021-11-23 13:36:05,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 630 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:36:05,696 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 140 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:05,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 241 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:05,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-11-23 13:36:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3030. [2021-11-23 13:36:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.0696599537801255) internal successors, (3240), 3029 states have internal predecessors, (3240), 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) [2021-11-23 13:36:05,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3240 transitions. [2021-11-23 13:36:05,772 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3240 transitions. Word has length 630 [2021-11-23 13:36:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:05,773 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3240 transitions. [2021-11-23 13:36:05,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-11-23 13:36:05,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3240 transitions. [2021-11-23 13:36:05,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2021-11-23 13:36:05,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:05,782 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:05,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:05,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:05,996 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:05,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:05,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1088925827, now seen corresponding path program 1 times [2021-11-23 13:36:05,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:05,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026034686] [2021-11-23 13:36:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:05,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:06,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1754 backedges. 1291 proven. 110 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-23 13:36:06,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:06,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026034686] [2021-11-23 13:36:06,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026034686] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:06,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571110099] [2021-11-23 13:36:06,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:06,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:06,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:36:06,286 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:36:06,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:36:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:06,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:36:06,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1754 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2021-11-23 13:36:07,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:36:07,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571110099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:07,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:36:07,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-23 13:36:07,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926075022] [2021-11-23 13:36:07,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:07,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:07,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:07,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:07,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:36:07,606 INFO L87 Difference]: Start difference. First operand 3030 states and 3240 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2021-11-23 13:36:08,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:08,141 INFO L93 Difference]: Finished difference Result 3744 states and 3993 transitions. [2021-11-23 13:36:08,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:08,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 721 [2021-11-23 13:36:08,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:08,169 INFO L225 Difference]: With dead ends: 3744 [2021-11-23 13:36:08,169 INFO L226 Difference]: Without dead ends: 3742 [2021-11-23 13:36:08,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 721 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:36:08,172 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 161 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:08,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 16 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:08,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-11-23 13:36:08,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 2852. [2021-11-23 13:36:08,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0722553490003508) internal successors, (3057), 2851 states have internal predecessors, (3057), 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) [2021-11-23 13:36:08,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3057 transitions. [2021-11-23 13:36:08,306 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3057 transitions. Word has length 721 [2021-11-23 13:36:08,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:08,308 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3057 transitions. [2021-11-23 13:36:08,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2021-11-23 13:36:08,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3057 transitions. [2021-11-23 13:36:08,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2021-11-23 13:36:08,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:08,324 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:08,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:08,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:08,539 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:08,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:08,539 INFO L85 PathProgramCache]: Analyzing trace with hash 952415469, now seen corresponding path program 1 times [2021-11-23 13:36:08,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:08,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239380480] [2021-11-23 13:36:08,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:08,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:08,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 1189 proven. 155 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-23 13:36:08,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:08,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239380480] [2021-11-23 13:36:08,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239380480] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:08,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779864805] [2021-11-23 13:36:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:08,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:08,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:36:08,951 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:36:08,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:36:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:09,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:36:09,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 1189 proven. 155 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-23 13:36:10,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 1189 proven. 155 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-23 13:36:11,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779864805] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:36:11,640 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:36:11,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-11-23 13:36:11,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143635405] [2021-11-23 13:36:11,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:36:11,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:36:11,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:36:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:36:11,644 INFO L87 Difference]: Start difference. First operand 2852 states and 3057 transitions. Second operand has 6 states, 6 states have (on average 141.66666666666666) internal successors, (850), 6 states have internal predecessors, (850), 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) [2021-11-23 13:36:12,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:12,544 INFO L93 Difference]: Finished difference Result 6770 states and 7272 transitions. [2021-11-23 13:36:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:36:12,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 141.66666666666666) internal successors, (850), 6 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 765 [2021-11-23 13:36:12,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:12,568 INFO L225 Difference]: With dead ends: 6770 [2021-11-23 13:36:12,568 INFO L226 Difference]: Without dead ends: 4276 [2021-11-23 13:36:12,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1532 GetRequests, 1528 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:36:12,573 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 75 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:12,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 57 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 13:36:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-11-23 13:36:12,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3564. [2021-11-23 13:36:12,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.069323603704743) internal successors, (3810), 3563 states have internal predecessors, (3810), 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) [2021-11-23 13:36:12,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3810 transitions. [2021-11-23 13:36:12,644 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3810 transitions. Word has length 765 [2021-11-23 13:36:12,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:12,645 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3810 transitions. [2021-11-23 13:36:12,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.66666666666666) internal successors, (850), 6 states have internal predecessors, (850), 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) [2021-11-23 13:36:12,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3810 transitions. [2021-11-23 13:36:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2021-11-23 13:36:12,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:12,657 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:12,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:12,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-23 13:36:12,874 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:12,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:12,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1384123154, now seen corresponding path program 1 times [2021-11-23 13:36:12,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:12,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021028520] [2021-11-23 13:36:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:12,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2165 backedges. 1380 proven. 0 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2021-11-23 13:36:13,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:13,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021028520] [2021-11-23 13:36:13,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021028520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:13,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:13,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:36:13,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295870968] [2021-11-23 13:36:13,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:13,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:13,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:13,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:13,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:13,239 INFO L87 Difference]: Start difference. First operand 3564 states and 3810 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2021-11-23 13:36:13,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:13,786 INFO L93 Difference]: Finished difference Result 8372 states and 9015 transitions. [2021-11-23 13:36:13,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:13,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 837 [2021-11-23 13:36:13,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:13,803 INFO L225 Difference]: With dead ends: 8372 [2021-11-23 13:36:13,804 INFO L226 Difference]: Without dead ends: 5166 [2021-11-23 13:36:13,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:13,810 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 110 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:13,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 33 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:13,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-11-23 13:36:13,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4810. [2021-11-23 13:36:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0704928259513413) internal successors, (5148), 4809 states have internal predecessors, (5148), 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) [2021-11-23 13:36:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5148 transitions. [2021-11-23 13:36:13,901 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5148 transitions. Word has length 837 [2021-11-23 13:36:13,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:13,902 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5148 transitions. [2021-11-23 13:36:13,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2021-11-23 13:36:13,902 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5148 transitions. [2021-11-23 13:36:13,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2021-11-23 13:36:13,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:13,914 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:13,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 13:36:13,915 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:13,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:13,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1474782911, now seen corresponding path program 1 times [2021-11-23 13:36:13,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:13,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149930348] [2021-11-23 13:36:13,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:13,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2183 backedges. 1447 proven. 93 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2021-11-23 13:36:14,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:14,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149930348] [2021-11-23 13:36:14,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149930348] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:14,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119720959] [2021-11-23 13:36:14,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:14,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:14,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:36:14,296 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:36:14,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:36:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:14,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:36:14,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:16,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2183 backedges. 1540 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2021-11-23 13:36:16,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:36:16,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119720959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:16,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:36:16,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-23 13:36:16,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439276490] [2021-11-23 13:36:16,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:16,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:16,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:16,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:16,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:36:16,444 INFO L87 Difference]: Start difference. First operand 4810 states and 5148 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2021-11-23 13:36:16,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:16,975 INFO L93 Difference]: Finished difference Result 9974 states and 10670 transitions. [2021-11-23 13:36:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:16,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 855 [2021-11-23 13:36:16,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:16,988 INFO L225 Difference]: With dead ends: 9974 [2021-11-23 13:36:16,988 INFO L226 Difference]: Without dead ends: 5522 [2021-11-23 13:36:16,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:36:16,996 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:16,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 58 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-11-23 13:36:17,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4810. [2021-11-23 13:36:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0704928259513413) internal successors, (5148), 4809 states have internal predecessors, (5148), 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) [2021-11-23 13:36:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5148 transitions. [2021-11-23 13:36:17,096 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5148 transitions. Word has length 855 [2021-11-23 13:36:17,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:17,097 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5148 transitions. [2021-11-23 13:36:17,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2021-11-23 13:36:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5148 transitions. [2021-11-23 13:36:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2021-11-23 13:36:17,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:17,109 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:17,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:17,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 13:36:17,326 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:17,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:17,326 INFO L85 PathProgramCache]: Analyzing trace with hash -540329466, now seen corresponding path program 1 times [2021-11-23 13:36:17,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:17,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024490538] [2021-11-23 13:36:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:17,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2340 backedges. 1555 proven. 0 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2021-11-23 13:36:17,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:17,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024490538] [2021-11-23 13:36:17,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024490538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:17,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:17,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:36:17,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263782025] [2021-11-23 13:36:17,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:17,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:17,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:17,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:17,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:17,681 INFO L87 Difference]: Start difference. First operand 4810 states and 5148 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2021-11-23 13:36:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:18,164 INFO L93 Difference]: Finished difference Result 9440 states and 10147 transitions. [2021-11-23 13:36:18,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:18,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 856 [2021-11-23 13:36:18,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:18,176 INFO L225 Difference]: With dead ends: 9440 [2021-11-23 13:36:18,177 INFO L226 Difference]: Without dead ends: 4988 [2021-11-23 13:36:18,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:18,183 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:18,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 223 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:36:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-11-23 13:36:18,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2021-11-23 13:36:18,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0639663124122718) internal successors, (5306), 4987 states have internal predecessors, (5306), 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) [2021-11-23 13:36:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5306 transitions. [2021-11-23 13:36:18,272 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5306 transitions. Word has length 856 [2021-11-23 13:36:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:18,273 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5306 transitions. [2021-11-23 13:36:18,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2021-11-23 13:36:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5306 transitions. [2021-11-23 13:36:18,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2021-11-23 13:36:18,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:18,289 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:18,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 13:36:18,290 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:18,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:18,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1541924422, now seen corresponding path program 1 times [2021-11-23 13:36:18,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:18,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682067006] [2021-11-23 13:36:18,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:18,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:18,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2913 backedges. 1821 proven. 0 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2021-11-23 13:36:18,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:18,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682067006] [2021-11-23 13:36:18,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682067006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:18,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:18,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:36:18,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666550797] [2021-11-23 13:36:18,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:18,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:18,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:18,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:18,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:18,687 INFO L87 Difference]: Start difference. First operand 4988 states and 5306 transitions. Second operand has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 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) [2021-11-23 13:36:19,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:19,290 INFO L93 Difference]: Finished difference Result 9796 states and 10440 transitions. [2021-11-23 13:36:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:19,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 951 [2021-11-23 13:36:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:19,301 INFO L225 Difference]: With dead ends: 9796 [2021-11-23 13:36:19,301 INFO L226 Difference]: Without dead ends: 5166 [2021-11-23 13:36:19,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:19,307 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 23 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:19,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 223 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:36:19,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-11-23 13:36:19,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2021-11-23 13:36:19,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0571151984511133) internal successors, (5460), 5165 states have internal predecessors, (5460), 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) [2021-11-23 13:36:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5460 transitions. [2021-11-23 13:36:19,394 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5460 transitions. Word has length 951 [2021-11-23 13:36:19,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:19,396 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5460 transitions. [2021-11-23 13:36:19,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 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) [2021-11-23 13:36:19,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5460 transitions. [2021-11-23 13:36:19,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2021-11-23 13:36:19,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:19,412 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:19,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 13:36:19,412 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:19,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:19,413 INFO L85 PathProgramCache]: Analyzing trace with hash -768142175, now seen corresponding path program 1 times [2021-11-23 13:36:19,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:19,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240433306] [2021-11-23 13:36:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:19,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3474 backedges. 1533 proven. 0 refuted. 0 times theorem prover too weak. 1941 trivial. 0 not checked. [2021-11-23 13:36:19,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:19,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240433306] [2021-11-23 13:36:19,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240433306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:19,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:19,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 13:36:19,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208705439] [2021-11-23 13:36:19,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:19,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 13:36:19,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:19,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:36:19,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:36:19,893 INFO L87 Difference]: Start difference. First operand 5166 states and 5460 transitions. Second operand has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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) [2021-11-23 13:36:20,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:20,473 INFO L93 Difference]: Finished difference Result 10202 states and 10792 transitions. [2021-11-23 13:36:20,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:36:20,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 975 [2021-11-23 13:36:20,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:20,484 INFO L225 Difference]: With dead ends: 10202 [2021-11-23 13:36:20,484 INFO L226 Difference]: Without dead ends: 5344 [2021-11-23 13:36:20,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:36:20,490 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 95 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:20,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 23 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:20,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-11-23 13:36:20,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2021-11-23 13:36:20,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0462729912875122) internal successors, (5404), 5165 states have internal predecessors, (5404), 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) [2021-11-23 13:36:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5404 transitions. [2021-11-23 13:36:20,576 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5404 transitions. Word has length 975 [2021-11-23 13:36:20,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:20,577 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5404 transitions. [2021-11-23 13:36:20,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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) [2021-11-23 13:36:20,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5404 transitions. [2021-11-23 13:36:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1008 [2021-11-23 13:36:20,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:20,592 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:20,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 13:36:20,592 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:20,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:20,593 INFO L85 PathProgramCache]: Analyzing trace with hash 208712432, now seen corresponding path program 1 times [2021-11-23 13:36:20,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:20,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444303191] [2021-11-23 13:36:20,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:20,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3378 backedges. 909 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2021-11-23 13:36:21,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:21,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444303191] [2021-11-23 13:36:21,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444303191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:21,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:21,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:36:21,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716646037] [2021-11-23 13:36:21,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:21,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:21,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:21,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:21,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:21,021 INFO L87 Difference]: Start difference. First operand 5166 states and 5404 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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) [2021-11-23 13:36:21,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:21,663 INFO L93 Difference]: Finished difference Result 10330 states and 10824 transitions. [2021-11-23 13:36:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:21,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1007 [2021-11-23 13:36:21,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:21,676 INFO L225 Difference]: With dead ends: 10330 [2021-11-23 13:36:21,677 INFO L226 Difference]: Without dead ends: 5522 [2021-11-23 13:36:21,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:21,684 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 111 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:21,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 223 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:36:21,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-11-23 13:36:21,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2021-11-23 13:36:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0370578326782707) internal successors, (5541), 5343 states have internal predecessors, (5541), 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) [2021-11-23 13:36:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5541 transitions. [2021-11-23 13:36:21,787 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5541 transitions. Word has length 1007 [2021-11-23 13:36:21,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:21,788 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5541 transitions. [2021-11-23 13:36:21,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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) [2021-11-23 13:36:21,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5541 transitions. [2021-11-23 13:36:21,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1056 [2021-11-23 13:36:21,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:21,808 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:21,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 13:36:21,808 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:21,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:21,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1824429464, now seen corresponding path program 1 times [2021-11-23 13:36:21,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:21,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299889451] [2021-11-23 13:36:21,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:21,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:22,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3575 backedges. 2520 proven. 72 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2021-11-23 13:36:22,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:22,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299889451] [2021-11-23 13:36:22,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299889451] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:22,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744349393] [2021-11-23 13:36:22,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:22,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:22,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:36:22,357 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:36:22,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 13:36:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:22,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 13:36:22,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3575 backedges. 2479 proven. 666 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2021-11-23 13:36:24,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 3575 backedges. 2592 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2021-11-23 13:36:26,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744349393] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:26,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:36:26,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2021-11-23 13:36:26,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455719322] [2021-11-23 13:36:26,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:26,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:36:26,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:26,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:36:26,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:36:26,561 INFO L87 Difference]: Start difference. First operand 5344 states and 5541 transitions. Second operand has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 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) [2021-11-23 13:36:27,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:27,149 INFO L93 Difference]: Finished difference Result 10508 states and 10904 transitions. [2021-11-23 13:36:27,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:36:27,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1055 [2021-11-23 13:36:27,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:27,163 INFO L225 Difference]: With dead ends: 10508 [2021-11-23 13:36:27,163 INFO L226 Difference]: Without dead ends: 5522 [2021-11-23 13:36:27,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2113 GetRequests, 2105 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:36:27,169 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 314 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:27,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 9 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:27,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-11-23 13:36:27,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2021-11-23 13:36:27,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.033314617256223) internal successors, (5521), 5343 states have internal predecessors, (5521), 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) [2021-11-23 13:36:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5521 transitions. [2021-11-23 13:36:27,274 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5521 transitions. Word has length 1055 [2021-11-23 13:36:27,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:27,275 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5521 transitions. [2021-11-23 13:36:27,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 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) [2021-11-23 13:36:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5521 transitions. [2021-11-23 13:36:27,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1167 [2021-11-23 13:36:27,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:27,295 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:27,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:27,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:27,517 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:27,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:27,518 INFO L85 PathProgramCache]: Analyzing trace with hash 925507016, now seen corresponding path program 1 times [2021-11-23 13:36:27,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:27,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974059870] [2021-11-23 13:36:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:27,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4176 backedges. 1815 proven. 390 refuted. 0 times theorem prover too weak. 1971 trivial. 0 not checked. [2021-11-23 13:36:28,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:28,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974059870] [2021-11-23 13:36:28,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974059870] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:28,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480635878] [2021-11-23 13:36:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:28,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:28,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:36:28,197 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:36:28,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 13:36:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:28,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:36:28,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4176 backedges. 2104 proven. 0 refuted. 0 times theorem prover too weak. 2072 trivial. 0 not checked. [2021-11-23 13:36:34,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:36:34,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480635878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:34,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:36:34,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-23 13:36:34,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535705024] [2021-11-23 13:36:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:34,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:36:34,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:36:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:36:34,317 INFO L87 Difference]: Start difference. First operand 5344 states and 5521 transitions. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 3 states have internal predecessors, (400), 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) [2021-11-23 13:36:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:34,830 INFO L93 Difference]: Finished difference Result 10508 states and 10864 transitions. [2021-11-23 13:36:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:34,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1166 [2021-11-23 13:36:34,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:34,840 INFO L225 Difference]: With dead ends: 10508 [2021-11-23 13:36:34,840 INFO L226 Difference]: Without dead ends: 5344 [2021-11-23 13:36:34,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1170 GetRequests, 1164 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:36:34,846 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 96 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:34,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 42 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:34,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-11-23 13:36:34,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2021-11-23 13:36:34,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0300096805421104) internal successors, (5320), 5165 states have internal predecessors, (5320), 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) [2021-11-23 13:36:34,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5320 transitions. [2021-11-23 13:36:34,936 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5320 transitions. Word has length 1166 [2021-11-23 13:36:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:34,937 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5320 transitions. [2021-11-23 13:36:34,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 3 states have internal predecessors, (400), 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) [2021-11-23 13:36:34,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5320 transitions. [2021-11-23 13:36:34,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1215 [2021-11-23 13:36:34,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:34,956 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:34,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:35,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-23 13:36:35,170 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:35,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:35,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1652705126, now seen corresponding path program 1 times [2021-11-23 13:36:35,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:35,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280343911] [2021-11-23 13:36:35,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:35,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4111 backedges. 3056 proven. 72 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2021-11-23 13:36:35,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:35,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280343911] [2021-11-23 13:36:35,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280343911] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:35,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785504177] [2021-11-23 13:36:35,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:35,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:35,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:36:35,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:36:35,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 13:36:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:36,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 13:36:36,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4111 backedges. 2965 proven. 716 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2021-11-23 13:36:38,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4111 backedges. 3128 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2021-11-23 13:36:39,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785504177] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:39,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:36:39,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2021-11-23 13:36:39,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728766154] [2021-11-23 13:36:39,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:39,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:36:39,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:39,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:36:39,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:36:39,744 INFO L87 Difference]: Start difference. First operand 5166 states and 5320 transitions. Second operand has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 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) [2021-11-23 13:36:40,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:40,286 INFO L93 Difference]: Finished difference Result 9974 states and 10279 transitions. [2021-11-23 13:36:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:36:40,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1214 [2021-11-23 13:36:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:40,295 INFO L225 Difference]: With dead ends: 9974 [2021-11-23 13:36:40,295 INFO L226 Difference]: Without dead ends: 5166 [2021-11-23 13:36:40,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2431 GetRequests, 2423 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:36:40,304 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 236 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:40,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 10 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:40,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-11-23 13:36:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2021-11-23 13:36:40,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0290755965510328) internal successors, (5132), 4987 states have internal predecessors, (5132), 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) [2021-11-23 13:36:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5132 transitions. [2021-11-23 13:36:40,370 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5132 transitions. Word has length 1214 [2021-11-23 13:36:40,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:40,371 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5132 transitions. [2021-11-23 13:36:40,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 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) [2021-11-23 13:36:40,372 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5132 transitions. [2021-11-23 13:36:40,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1296 [2021-11-23 13:36:40,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:40,393 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:40,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:40,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:40,622 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:40,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:40,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1697277830, now seen corresponding path program 1 times [2021-11-23 13:36:40,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:40,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874645370] [2021-11-23 13:36:40,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:40,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5568 backedges. 2772 proven. 0 refuted. 0 times theorem prover too weak. 2796 trivial. 0 not checked. [2021-11-23 13:36:41,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:41,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874645370] [2021-11-23 13:36:41,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874645370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:41,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:41,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:36:41,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105359519] [2021-11-23 13:36:41,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:41,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:41,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:41,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:41,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:41,221 INFO L87 Difference]: Start difference. First operand 4988 states and 5132 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2021-11-23 13:36:41,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:41,740 INFO L93 Difference]: Finished difference Result 9974 states and 10264 transitions. [2021-11-23 13:36:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:41,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1295 [2021-11-23 13:36:41,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:41,749 INFO L225 Difference]: With dead ends: 9974 [2021-11-23 13:36:41,749 INFO L226 Difference]: Without dead ends: 5166 [2021-11-23 13:36:41,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:41,764 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 53 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:41,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 229 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:36:41,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-11-23 13:36:41,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4632. [2021-11-23 13:36:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.028935435111207) internal successors, (4765), 4631 states have internal predecessors, (4765), 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) [2021-11-23 13:36:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4765 transitions. [2021-11-23 13:36:41,838 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4765 transitions. Word has length 1295 [2021-11-23 13:36:41,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:41,839 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4765 transitions. [2021-11-23 13:36:41,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2021-11-23 13:36:41,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4765 transitions. [2021-11-23 13:36:41,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1465 [2021-11-23 13:36:41,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:41,862 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:41,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 13:36:41,862 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:41,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:41,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1326804845, now seen corresponding path program 1 times [2021-11-23 13:36:41,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:36:41,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829397272] [2021-11-23 13:36:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:41,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:36:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 6247 backedges. 2663 proven. 78 refuted. 0 times theorem prover too weak. 3506 trivial. 0 not checked. [2021-11-23 13:36:42,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:36:42,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829397272] [2021-11-23 13:36:42,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829397272] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:36:42,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398223572] [2021-11-23 13:36:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:42,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:42,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:36:42,749 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:36:42,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 13:36:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:43,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:36:43,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:46,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6247 backedges. 1632 proven. 39 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-11-23 13:36:46,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6247 backedges. 1632 proven. 39 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-11-23 13:36:48,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398223572] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:36:48,547 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:36:48,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2021-11-23 13:36:48,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511789190] [2021-11-23 13:36:48,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:36:48,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:36:48,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:36:48,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:36:48,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:36:48,554 INFO L87 Difference]: Start difference. First operand 4632 states and 4765 transitions. Second operand has 8 states, 8 states have (on average 121.25) internal successors, (970), 8 states have internal predecessors, (970), 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) [2021-11-23 13:36:51,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:51,083 INFO L93 Difference]: Finished difference Result 12286 states and 12658 transitions. [2021-11-23 13:36:51,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:36:51,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 121.25) internal successors, (970), 8 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1464 [2021-11-23 13:36:51,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:51,085 INFO L225 Difference]: With dead ends: 12286 [2021-11-23 13:36:51,085 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 13:36:51,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2935 GetRequests, 2926 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:36:51,094 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 630 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3193 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 3193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:51,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 56 Invalid, 3302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 3193 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-23 13:36:51,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 13:36:51,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 13:36:51,098 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) [2021-11-23 13:36:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 13:36:51,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1464 [2021-11-23 13:36:51,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:51,099 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:36:51,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.25) internal successors, (970), 8 states have internal predecessors, (970), 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) [2021-11-23 13:36:51,100 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:36:51,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 13:36:51,103 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:36:51,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:51,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:36:51,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 13:36:59,578 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-11-23 13:36:59,578 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-11-23 13:36:59,578 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-11-23 13:36:59,578 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-11-23 13:36:59,578 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-11-23 13:36:59,579 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-11-23 13:36:59,580 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-11-23 13:36:59,580 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,580 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,580 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,580 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-11-23 13:36:59,580 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-23 13:36:59,580 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-23 13:36:59,581 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-11-23 13:36:59,581 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-11-23 13:36:59,581 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-11-23 13:36:59,581 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-11-23 13:36:59,581 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-11-23 13:36:59,581 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-11-23 13:36:59,581 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,582 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,582 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,582 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-11-23 13:36:59,582 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-23 13:36:59,582 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-23 13:36:59,582 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-23 13:36:59,583 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-11-23 13:36:59,583 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-11-23 13:36:59,583 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-11-23 13:36:59,583 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,583 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,583 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,583 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-11-23 13:36:59,584 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-23 13:36:59,584 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-23 13:36:59,584 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-23 13:36:59,584 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-11-23 13:36:59,584 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-11-23 13:36:59,584 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-11-23 13:36:59,585 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-11-23 13:36:59,585 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,585 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,585 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,585 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-11-23 13:36:59,585 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-11-23 13:36:59,586 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-11-23 13:36:59,586 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-23 13:36:59,586 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-23 13:36:59,586 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-11-23 13:36:59,586 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-11-23 13:36:59,586 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-11-23 13:36:59,586 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,587 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,587 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,587 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-11-23 13:36:59,587 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-23 13:36:59,587 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-11-23 13:36:59,587 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-23 13:36:59,588 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-11-23 13:36:59,588 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-11-23 13:36:59,588 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-11-23 13:36:59,588 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-11-23 13:36:59,588 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-11-23 13:36:59,588 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,588 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,589 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,589 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-11-23 13:36:59,589 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-23 13:36:59,589 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-23 13:36:59,589 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-11-23 13:36:59,589 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-11-23 13:36:59,590 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-11-23 13:36:59,590 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-11-23 13:36:59,590 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 13:36:59,590 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,590 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,590 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,591 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-11-23 13:36:59,591 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-11-23 13:36:59,591 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-23 13:36:59,591 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-11-23 13:36:59,591 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-11-23 13:36:59,591 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-11-23 13:36:59,591 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-11-23 13:36:59,592 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-11-23 13:36:59,592 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-11-23 13:36:59,592 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,592 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,592 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,592 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-11-23 13:36:59,593 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-23 13:36:59,593 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-11-23 13:36:59,593 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-11-23 13:36:59,593 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-11-23 13:36:59,593 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-11-23 13:36:59,593 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-11-23 13:36:59,594 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-11-23 13:36:59,594 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,594 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,594 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,594 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-23 13:36:59,594 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-11-23 13:36:59,595 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-11-23 13:36:59,595 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 13:36:59,596 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-11-23 13:36:59,596 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2021-11-23 13:36:59,596 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-11-23 13:36:59,596 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-11-23 13:36:59,596 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-11-23 13:36:59,596 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-11-23 13:36:59,597 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,597 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,597 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,597 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-11-23 13:36:59,597 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-11-23 13:36:59,597 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-23 13:36:59,598 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-11-23 13:36:59,598 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-23 13:36:59,598 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-11-23 13:36:59,598 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-11-23 13:36:59,598 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-11-23 13:36:59,598 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,599 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,599 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,599 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-23 13:36:59,599 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-23 13:36:59,599 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-11-23 13:36:59,599 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-11-23 13:36:59,600 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-11-23 13:36:59,600 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-11-23 13:36:59,600 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-11-23 13:36:59,600 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-11-23 13:36:59,600 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,600 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,600 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,601 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-11-23 13:36:59,601 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-11-23 13:36:59,601 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-11-23 13:36:59,601 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-23 13:36:59,601 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-11-23 13:36:59,601 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-11-23 13:36:59,602 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-11-23 13:36:59,602 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-11-23 13:36:59,602 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,602 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,602 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,602 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-11-23 13:36:59,603 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-11-23 13:36:59,603 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-11-23 13:36:59,603 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-11-23 13:36:59,603 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-11-23 13:36:59,603 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-11-23 13:36:59,603 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-11-23 13:36:59,604 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-11-23 13:36:59,604 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,604 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,604 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,604 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-11-23 13:36:59,604 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-23 13:36:59,605 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-11-23 13:36:59,605 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-11-23 13:36:59,605 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-11-23 13:36:59,605 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-11-23 13:36:59,605 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-11-23 13:36:59,605 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-11-23 13:36:59,606 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,606 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,606 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-11-23 13:36:59,606 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-23 13:36:59,606 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-11-23 13:36:59,606 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-11-23 13:36:59,607 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-11-23 13:36:59,607 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-11-23 13:36:59,607 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-11-23 13:36:59,607 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-11-23 13:36:59,607 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,607 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,607 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-11-23 13:36:59,608 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 13:36:59,608 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-23 13:36:59,608 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-23 13:36:59,608 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-11-23 13:36:59,608 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-11-23 13:36:59,608 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-11-23 13:36:59,609 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,609 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,609 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse16 (+ ~a12~0 43)) (.cse9 (<= 8 ~a15~0)) (.cse5 (<= ~a15~0 8))) (let ((.cse14 (<= 7 ~a15~0)) (.cse12 (<= ~a21~0 9)) (.cse4 (= ~a24~0 1)) (.cse15 (or (and .cse5 .cse9) (and .cse5 (not (= ~a21~0 6))))) (.cse11 (< 0 .cse16))) (let ((.cse6 (<= 8 ~a21~0)) (.cse8 (< 80 ~a12~0)) (.cse0 (or (and .cse14 .cse12 .cse4 .cse5 .cse11) (and .cse12 .cse4 .cse15 .cse11))) (.cse2 (<= ~a12~0 600006)) (.cse10 (< 11 ~a12~0)) (.cse3 (<= .cse16 0)) (.cse13 (<= ~a15~0 5)) (.cse1 (<= 12849 ~a12~0)) (.cse7 (<= ~a21~0 8))) (or (and (<= ~a12~0 80) .cse0) (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse3 .cse4 .cse6 .cse7) (and (<= 9 ~a21~0) .cse4 .cse8 .cse2 .cse9) (and .cse4 .cse6 .cse10 .cse7 .cse2) (and .cse3 .cse4 (<= 10 ~a21~0)) (and .cse4 (<= ~a12~0 10) .cse11 .cse9) (and .cse4 (<= 7 ~a21~0) (<= ~a21~0 7) .cse10 .cse2) (and .cse12 .cse4 .cse13) (and .cse14 .cse4 .cse5 .cse8 .cse2) (and .cse0 .cse7 .cse2) (and .cse4 .cse5 (<= ~a12~0 76) .cse10 .cse7) (and (or (and .cse4 .cse13) (and .cse3 .cse5 .cse13)) (<= ~a12~0 600060)) (and (< 11 (div (+ 437300 (* (div (+ (* ~a12~0 10) 2779120) 9) (- 1))) 10)) .cse4 .cse1 .cse7) (and (<= ~a12~0 11) .cse4 .cse15))))) [2021-11-23 13:36:59,609 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-11-23 13:36:59,610 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-11-23 13:36:59,610 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-23 13:36:59,610 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-11-23 13:36:59,610 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-11-23 13:36:59,610 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-11-23 13:36:59,610 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-11-23 13:36:59,610 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-11-23 13:36:59,611 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,611 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,611 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-11-23 13:36:59,611 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-11-23 13:36:59,611 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-11-23 13:36:59,611 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-23 13:36:59,612 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-23 13:36:59,612 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-11-23 13:36:59,612 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-11-23 13:36:59,612 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-11-23 13:36:59,612 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,612 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,613 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 13:36:59,613 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-11-23 13:36:59,613 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-11-23 13:36:59,613 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-23 13:36:59,613 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-11-23 13:36:59,613 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-11-23 13:36:59,613 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-11-23 13:36:59,614 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,614 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,614 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-23 13:36:59,614 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,614 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-11-23 13:36:59,615 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse16 (+ ~a12~0 43)) (.cse9 (<= 8 ~a15~0)) (.cse5 (<= ~a15~0 8))) (let ((.cse14 (<= 7 ~a15~0)) (.cse12 (<= ~a21~0 9)) (.cse4 (= ~a24~0 1)) (.cse15 (or (and .cse5 .cse9) (and .cse5 (not (= ~a21~0 6))))) (.cse11 (< 0 .cse16))) (let ((.cse6 (<= 8 ~a21~0)) (.cse8 (< 80 ~a12~0)) (.cse0 (or (and .cse14 .cse12 .cse4 .cse5 .cse11) (and .cse12 .cse4 .cse15 .cse11))) (.cse2 (<= ~a12~0 600006)) (.cse10 (< 11 ~a12~0)) (.cse3 (<= .cse16 0)) (.cse13 (<= ~a15~0 5)) (.cse1 (<= 12849 ~a12~0)) (.cse7 (<= ~a21~0 8))) (or (and (<= ~a12~0 80) .cse0) (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse3 .cse4 .cse6 .cse7) (and (<= 9 ~a21~0) .cse4 .cse8 .cse2 .cse9) (and .cse4 .cse6 .cse10 .cse7 .cse2) (and .cse3 .cse4 (<= 10 ~a21~0)) (and .cse4 (<= ~a12~0 10) .cse11 .cse9) (and .cse4 (<= 7 ~a21~0) (<= ~a21~0 7) .cse10 .cse2) (and .cse12 .cse4 .cse13) (and .cse14 .cse4 .cse5 .cse8 .cse2) (and .cse0 .cse7 .cse2) (and .cse4 .cse5 (<= ~a12~0 76) .cse10 .cse7) (and (or (and .cse4 .cse13) (and .cse3 .cse5 .cse13)) (<= ~a12~0 600060)) (and (< 11 (div (+ 437300 (* (div (+ (* ~a12~0 10) 2779120) 9) (- 1))) 10)) .cse4 .cse1 .cse7) (and (<= ~a12~0 11) .cse4 .cse15))))) [2021-11-23 13:36:59,615 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-11-23 13:36:59,615 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-11-23 13:36:59,615 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-23 13:36:59,615 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-23 13:36:59,615 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-23 13:36:59,615 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-11-23 13:36:59,616 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-23 13:36:59,619 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:59,621 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:36:59,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:36:59 BoogieIcfgContainer [2021-11-23 13:36:59,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:36:59,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:36:59,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:36:59,658 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:36:59,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:47" (3/4) ... [2021-11-23 13:36:59,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 13:36:59,691 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 13:36:59,693 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 13:36:59,695 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 13:36:59,697 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 13:36:59,840 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:36:59,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:36:59,841 INFO L158 Benchmark]: Toolchain (without parser) took 74998.87ms. Allocated memory was 107.0MB in the beginning and 660.6MB in the end (delta: 553.6MB). Free memory was 72.5MB in the beginning and 161.6MB in the end (delta: -89.0MB). Peak memory consumption was 464.3MB. Max. memory is 16.1GB. [2021-11-23 13:36:59,841 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 77.6MB. Free memory is still 35.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:36:59,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 914.10ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 62.6MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 13:36:59,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.90ms. Allocated memory is still 107.0MB. Free memory was 62.1MB in the beginning and 52.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:36:59,842 INFO L158 Benchmark]: Boogie Preprocessor took 132.41ms. Allocated memory is still 107.0MB. Free memory was 52.6MB in the beginning and 46.8MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 13:36:59,843 INFO L158 Benchmark]: RCFGBuilder took 1772.77ms. Allocated memory is still 107.0MB. Free memory was 46.8MB in the beginning and 52.4MB in the end (delta: -5.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 13:36:59,843 INFO L158 Benchmark]: TraceAbstraction took 71845.33ms. Allocated memory was 107.0MB in the beginning and 660.6MB in the end (delta: 553.6MB). Free memory was 51.8MB in the beginning and 180.4MB in the end (delta: -128.6MB). Peak memory consumption was 456.2MB. Max. memory is 16.1GB. [2021-11-23 13:36:59,843 INFO L158 Benchmark]: Witness Printer took 182.44ms. Allocated memory is still 660.6MB. Free memory was 180.4MB in the beginning and 161.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 13:36:59,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 77.6MB. Free memory is still 35.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 914.10ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 62.6MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 142.90ms. Allocated memory is still 107.0MB. Free memory was 62.1MB in the beginning and 52.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 132.41ms. Allocated memory is still 107.0MB. Free memory was 52.6MB in the beginning and 46.8MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1772.77ms. Allocated memory is still 107.0MB. Free memory was 46.8MB in the beginning and 52.4MB in the end (delta: -5.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 71845.33ms. Allocated memory was 107.0MB in the beginning and 660.6MB in the end (delta: 553.6MB). Free memory was 51.8MB in the beginning and 180.4MB in the end (delta: -128.6MB). Peak memory consumption was 456.2MB. Max. memory is 16.1GB. * Witness Printer took 182.44ms. Allocated memory is still 660.6MB. Free memory was 180.4MB in the beginning and 161.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. 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: 137]: 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 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.7s, OverallIterations: 24, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 18.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3457 SdHoareTripleChecker+Valid, 17.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3457 mSDsluCounter, 2485 SdHoareTripleChecker+Invalid, 13.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 1542 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15029 IncrementalHoareTripleChecker+Invalid, 16571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1542 mSolverCounterUnsat, 2313 mSDtfsCounter, 15029 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13455 GetRequests, 13378 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5344occurred in iteration=19, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 24 MinimizatonAttempts, 6408 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 110 NumberOfFragments, 753 HoareAnnotationTreeSize, 3 FomulaSimplifications, 29000 FormulaSimplificationTreeSizeReduction, 6.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 65732 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 34.5s InterpolantComputationTime, 25897 NumberOfCodeBlocks, 25897 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 30356 ConstructedInterpolants, 0 QuantifiedInterpolants, 84596 SizeOfPredicates, 1 NumberOfNonLiveVariables, 11154 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 39 InterpolantComputations, 22 PerfectInterpolantSequences, 87622/90819 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: 30]: Loop Invariant Derived loop invariant: (((((((((((((((a12 <= 80 && (((((7 <= a15 && a21 <= 9) && a24 == 1) && a15 <= 8) && 0 < a12 + 43) || (((a21 <= 9 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43))) || (((((((7 <= a15 && a21 <= 9) && a24 == 1) && a15 <= 8) && 0 < a12 + 43) || (((a21 <= 9 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43)) && 12849 <= a12) && a12 <= 600006)) || ((a12 + 43 <= 0 && a24 == 1) && a15 <= 8)) || (((a12 + 43 <= 0 && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((((9 <= a21 && a24 == 1) && 80 < a12) && a12 <= 600006) && 8 <= a15)) || ((((a24 == 1 && 8 <= a21) && 11 < a12) && a21 <= 8) && a12 <= 600006)) || ((a12 + 43 <= 0 && a24 == 1) && 10 <= a21)) || (((a24 == 1 && a12 <= 10) && 0 < a12 + 43) && 8 <= a15)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 11 < a12) && a12 <= 600006)) || ((a21 <= 9 && a24 == 1) && a15 <= 5)) || ((((7 <= a15 && a24 == 1) && a15 <= 8) && 80 < a12) && a12 <= 600006)) || (((((((7 <= a15 && a21 <= 9) && a24 == 1) && a15 <= 8) && 0 < a12 + 43) || (((a21 <= 9 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43)) && a21 <= 8) && a12 <= 600006)) || ((((a24 == 1 && a15 <= 8) && a12 <= 76) && 11 < a12) && a21 <= 8)) || (((a24 == 1 && a15 <= 5) || ((a12 + 43 <= 0 && a15 <= 8) && a15 <= 5)) && a12 <= 600060)) || (((11 < (437300 + (a12 * 10 + 2779120) / 9 * -1) / 10 && a24 == 1) && 12849 <= a12) && a21 <= 8)) || ((a12 <= 11 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((((((a12 <= 80 && (((((7 <= a15 && a21 <= 9) && a24 == 1) && a15 <= 8) && 0 < a12 + 43) || (((a21 <= 9 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43))) || (((((((7 <= a15 && a21 <= 9) && a24 == 1) && a15 <= 8) && 0 < a12 + 43) || (((a21 <= 9 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43)) && 12849 <= a12) && a12 <= 600006)) || ((a12 + 43 <= 0 && a24 == 1) && a15 <= 8)) || (((a12 + 43 <= 0 && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((((9 <= a21 && a24 == 1) && 80 < a12) && a12 <= 600006) && 8 <= a15)) || ((((a24 == 1 && 8 <= a21) && 11 < a12) && a21 <= 8) && a12 <= 600006)) || ((a12 + 43 <= 0 && a24 == 1) && 10 <= a21)) || (((a24 == 1 && a12 <= 10) && 0 < a12 + 43) && 8 <= a15)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 11 < a12) && a12 <= 600006)) || ((a21 <= 9 && a24 == 1) && a15 <= 5)) || ((((7 <= a15 && a24 == 1) && a15 <= 8) && 80 < a12) && a12 <= 600006)) || (((((((7 <= a15 && a21 <= 9) && a24 == 1) && a15 <= 8) && 0 < a12 + 43) || (((a21 <= 9 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43)) && a21 <= 8) && a12 <= 600006)) || ((((a24 == 1 && a15 <= 8) && a12 <= 76) && 11 < a12) && a21 <= 8)) || (((a24 == 1 && a15 <= 5) || ((a12 + 43 <= 0 && a15 <= 8) && a15 <= 5)) && a12 <= 600060)) || (((11 < (437300 + (a12 * 10 + 2779120) / 9 * -1) / 10 && a24 == 1) && 12849 <= a12) && a21 <= 8)) || ((a12 <= 11 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) RESULT: Ultimate proved your program to be correct! [2021-11-23 13:36:59,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369e0d97-aeb8-4563-b1dd-5feff4e78c88/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE