./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD --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 37f79062fe3be0abf370e94726d24a3524d934123ef5393980d7efccb29185f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 00:03:12,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:03:12,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:03:12,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:03:12,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:03:12,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:03:12,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:03:12,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:03:12,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:03:12,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:03:12,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:03:12,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:03:12,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:03:12,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:03:12,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:03:12,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:03:12,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:03:12,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:03:12,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:03:12,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:03:12,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:03:12,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:03:12,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:03:12,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:03:12,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:03:12,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:03:12,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:03:12,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:03:12,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:03:12,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:03:12,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:03:12,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:03:12,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:03:12,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:03:12,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:03:12,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:03:12,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:03:12,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:03:12,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:03:12,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:03:12,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:03:12,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-29 00:03:12,776 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:03:12,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:03:12,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:03:12,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:03:12,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:03:12,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:03:12,793 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:03:12,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:03:12,794 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:03:12,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:03:12,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:03:12,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:03:12,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 00:03:12,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 00:03:12,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 00:03:12,798 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:03:12,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:03:12,799 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:03:12,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 00:03:12,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:03:12,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:03:12,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 00:03:12,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:12,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:03:12,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 00:03:12,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 00:03:12,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:03:12,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 00:03:12,802 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-29 00:03:12,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-29 00:03:12,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 00:03:12,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:03:12,806 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_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37f79062fe3be0abf370e94726d24a3524d934123ef5393980d7efccb29185f4 [2021-10-29 00:03:13,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:03:13,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:03:13,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:03:13,261 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:03:13,262 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:03:13,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2021-10-29 00:03:13,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/data/26100fe18/2d59bb9147ff42649c608779c7b45192/FLAG53f5f938e [2021-10-29 00:03:14,127 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:03:14,128 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2021-10-29 00:03:14,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/data/26100fe18/2d59bb9147ff42649c608779c7b45192/FLAG53f5f938e [2021-10-29 00:03:14,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/data/26100fe18/2d59bb9147ff42649c608779c7b45192 [2021-10-29 00:03:14,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:03:14,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:03:14,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:14,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:03:14,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:03:14,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:14" (1/1) ... [2021-10-29 00:03:14,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414f3220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:14, skipping insertion in model container [2021-10-29 00:03:14,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:14" (1/1) ... [2021-10-29 00:03:14,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:03:14,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:03:14,726 WARN L228 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_bd3ff528-3e57-4858-8a04-f960c85f6ed2/sv-benchmarks/c/eca-rers2012/Problem14_label50.c[3933,3946] [2021-10-29 00:03:15,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:15,091 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:03:15,121 WARN L228 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_bd3ff528-3e57-4858-8a04-f960c85f6ed2/sv-benchmarks/c/eca-rers2012/Problem14_label50.c[3933,3946] [2021-10-29 00:03:15,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:15,386 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:03:15,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15 WrapperNode [2021-10-29 00:03:15,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:15,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:15,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:03:15,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:03:15,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:15,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:03:15,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:03:15,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:03:15,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:03:15,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:03:15,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:03:15,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:03:15,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:15,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:15,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:15,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 00:03:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 00:03:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:03:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:03:15,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:03:17,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:03:17,573 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 00:03:17,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:17 BoogieIcfgContainer [2021-10-29 00:03:17,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:03:17,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 00:03:17,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 00:03:17,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 00:03:17,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:03:14" (1/3) ... [2021-10-29 00:03:17,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2febc96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:17, skipping insertion in model container [2021-10-29 00:03:17,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (2/3) ... [2021-10-29 00:03:17,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2febc96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:17, skipping insertion in model container [2021-10-29 00:03:17,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:17" (3/3) ... [2021-10-29 00:03:17,591 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label50.c [2021-10-29 00:03:17,602 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 00:03:17,602 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 00:03:17,682 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 00:03:17,695 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 [2021-10-29 00:03:17,696 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 00:03:17,729 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) [2021-10-29 00:03:17,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 00:03:17,743 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:17,744 INFO L513 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] [2021-10-29 00:03:17,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:17,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:17,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2021-10-29 00:03:17,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:17,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356720250] [2021-10-29 00:03:17,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:17,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:18,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:18,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356720250] [2021-10-29 00:03:18,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356720250] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:18,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:18,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:18,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383996477] [2021-10-29 00:03:18,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:03:18,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:18,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:03:18,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:18,201 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 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-10-29 00:03:20,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:20,401 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2021-10-29 00:03:20,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:20,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-10-29 00:03:20,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:20,437 INFO L225 Difference]: With dead ends: 852 [2021-10-29 00:03:20,437 INFO L226 Difference]: Without dead ends: 538 [2021-10-29 00:03:20,444 INFO L786 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 [2021-10-29 00:03:20,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-29 00:03:20,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-10-29 00:03:20,608 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) [2021-10-29 00:03:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-10-29 00:03:20,615 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 37 [2021-10-29 00:03:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:20,616 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-10-29 00:03:20,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-10-29 00:03:20,616 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-10-29 00:03:20,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-10-29 00:03:20,633 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:20,633 INFO L513 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, 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] [2021-10-29 00:03:20,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 00:03:20,634 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1421944847, now seen corresponding path program 1 times [2021-10-29 00:03:20,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:20,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418618720] [2021-10-29 00:03:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:20,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-29 00:03:20,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:20,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418618720] [2021-10-29 00:03:20,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418618720] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:20,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:20,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 00:03:20,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302952657] [2021-10-29 00:03:20,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:20,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:20,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:20,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:20,903 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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) [2021-10-29 00:03:21,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:21,864 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2021-10-29 00:03:21,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:21,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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 185 [2021-10-29 00:03:21,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:21,871 INFO L225 Difference]: With dead ends: 1074 [2021-10-29 00:03:21,872 INFO L226 Difference]: Without dead ends: 716 [2021-10-29 00:03:21,875 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:21,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-29 00:03:21,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-10-29 00:03:21,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 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) [2021-10-29 00:03:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-10-29 00:03:21,940 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 185 [2021-10-29 00:03:21,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:21,941 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-10-29 00:03:21,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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) [2021-10-29 00:03:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-10-29 00:03:21,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-10-29 00:03:21,951 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:21,952 INFO L513 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, 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] [2021-10-29 00:03:21,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 00:03:21,952 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:21,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:21,953 INFO L85 PathProgramCache]: Analyzing trace with hash 292011490, now seen corresponding path program 1 times [2021-10-29 00:03:21,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:21,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55055651] [2021-10-29 00:03:21,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:21,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 00:03:22,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:22,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55055651] [2021-10-29 00:03:22,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55055651] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:22,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:22,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:22,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893848516] [2021-10-29 00:03:22,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:03:22,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:22,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:03:22,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:22,277 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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) [2021-10-29 00:03:23,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:23,486 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2021-10-29 00:03:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:23,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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 208 [2021-10-29 00:03:23,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:23,503 INFO L225 Difference]: With dead ends: 1637 [2021-10-29 00:03:23,503 INFO L226 Difference]: Without dead ends: 1072 [2021-10-29 00:03:23,505 INFO L786 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 [2021-10-29 00:03:23,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-29 00:03:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2021-10-29 00:03:23,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 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) [2021-10-29 00:03:23,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2021-10-29 00:03:23,541 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 208 [2021-10-29 00:03:23,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:23,542 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2021-10-29 00:03:23,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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) [2021-10-29 00:03:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2021-10-29 00:03:23,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-10-29 00:03:23,555 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:23,556 INFO L513 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:23,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 00:03:23,556 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:23,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:23,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1977723078, now seen corresponding path program 1 times [2021-10-29 00:03:23,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:23,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826371944] [2021-10-29 00:03:23,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:23,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 168 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-10-29 00:03:24,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:24,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826371944] [2021-10-29 00:03:24,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826371944] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:24,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184564968] [2021-10-29 00:03:24,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:24,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:24,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:24,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:24,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 00:03:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:24,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:24,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-10-29 00:03:25,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184564968] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:25,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:03:25,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-29 00:03:25,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323949712] [2021-10-29 00:03:25,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:25,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:25,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:25,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:03:25,442 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2021-10-29 00:03:26,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:26,381 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2021-10-29 00:03:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:26,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 339 [2021-10-29 00:03:26,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:26,397 INFO L225 Difference]: With dead ends: 2320 [2021-10-29 00:03:26,398 INFO L226 Difference]: Without dead ends: 1606 [2021-10-29 00:03:26,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:03:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-10-29 00:03:26,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2021-10-29 00:03:26,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1401541695865451) internal successors, (1627), 1427 states have internal predecessors, (1627), 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) [2021-10-29 00:03:26,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1627 transitions. [2021-10-29 00:03:26,458 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1627 transitions. Word has length 339 [2021-10-29 00:03:26,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:26,460 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1627 transitions. [2021-10-29 00:03:26,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2021-10-29 00:03:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1627 transitions. [2021-10-29 00:03:26,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-10-29 00:03:26,474 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:26,475 INFO L513 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, 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, 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] [2021-10-29 00:03:26,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-29 00:03:26,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:26,690 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:26,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:26,691 INFO L85 PathProgramCache]: Analyzing trace with hash -474273995, now seen corresponding path program 1 times [2021-10-29 00:03:26,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:26,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450991455] [2021-10-29 00:03:26,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:26,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-10-29 00:03:26,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:26,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450991455] [2021-10-29 00:03:26,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450991455] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:26,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:26,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:26,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485331000] [2021-10-29 00:03:26,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:26,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:26,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:26,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:26,990 INFO L87 Difference]: Start difference. First operand 1428 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2021-10-29 00:03:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:27,822 INFO L93 Difference]: Finished difference Result 3210 states and 3757 transitions. [2021-10-29 00:03:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:27,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 438 [2021-10-29 00:03:27,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:27,839 INFO L225 Difference]: With dead ends: 3210 [2021-10-29 00:03:27,840 INFO L226 Difference]: Without dead ends: 1962 [2021-10-29 00:03:27,842 INFO L786 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 [2021-10-29 00:03:27,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-29 00:03:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-10-29 00:03:27,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1274859765425804) internal successors, (2211), 1961 states have internal predecessors, (2211), 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) [2021-10-29 00:03:27,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2211 transitions. [2021-10-29 00:03:27,907 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2211 transitions. Word has length 438 [2021-10-29 00:03:27,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:27,908 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2211 transitions. [2021-10-29 00:03:27,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2021-10-29 00:03:27,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2211 transitions. [2021-10-29 00:03:27,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-10-29 00:03:27,923 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:27,924 INFO L513 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:27,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 00:03:27,924 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:27,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:27,926 INFO L85 PathProgramCache]: Analyzing trace with hash 708625393, now seen corresponding path program 1 times [2021-10-29 00:03:27,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:27,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909754436] [2021-10-29 00:03:27,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:27,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 550 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-10-29 00:03:28,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:28,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909754436] [2021-10-29 00:03:28,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909754436] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:28,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:28,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:28,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364459298] [2021-10-29 00:03:28,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:03:28,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:03:28,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:28,204 INFO L87 Difference]: Start difference. First operand 1962 states and 2211 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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) [2021-10-29 00:03:29,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:29,444 INFO L93 Difference]: Finished difference Result 4100 states and 4616 transitions. [2021-10-29 00:03:29,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:29,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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 462 [2021-10-29 00:03:29,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:29,460 INFO L225 Difference]: With dead ends: 4100 [2021-10-29 00:03:29,460 INFO L226 Difference]: Without dead ends: 2318 [2021-10-29 00:03:29,463 INFO L786 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 [2021-10-29 00:03:29,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-10-29 00:03:29,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2021-10-29 00:03:29,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.1135088476478205) internal successors, (2580), 2317 states have internal predecessors, (2580), 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) [2021-10-29 00:03:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2580 transitions. [2021-10-29 00:03:29,541 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2580 transitions. Word has length 462 [2021-10-29 00:03:29,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:29,542 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2580 transitions. [2021-10-29 00:03:29,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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) [2021-10-29 00:03:29,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2580 transitions. [2021-10-29 00:03:29,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2021-10-29 00:03:29,560 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:29,561 INFO L513 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, 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, 4, 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] [2021-10-29 00:03:29,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 00:03:29,562 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:29,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:29,563 INFO L85 PathProgramCache]: Analyzing trace with hash -301954776, now seen corresponding path program 1 times [2021-10-29 00:03:29,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:29,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345535989] [2021-10-29 00:03:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:29,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 695 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-10-29 00:03:29,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:29,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345535989] [2021-10-29 00:03:29,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345535989] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:29,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:29,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:29,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302770297] [2021-10-29 00:03:29,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:03:29,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:29,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:03:29,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:29,860 INFO L87 Difference]: Start difference. First operand 2318 states and 2580 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-10-29 00:03:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:30,801 INFO L93 Difference]: Finished difference Result 4692 states and 5227 transitions. [2021-10-29 00:03:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:30,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 518 [2021-10-29 00:03:30,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:30,819 INFO L225 Difference]: With dead ends: 4692 [2021-10-29 00:03:30,819 INFO L226 Difference]: Without dead ends: 2496 [2021-10-29 00:03:30,823 INFO L786 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 [2021-10-29 00:03:30,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-10-29 00:03:30,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2021-10-29 00:03:30,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0811394044022442) internal successors, (2505), 2317 states have internal predecessors, (2505), 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) [2021-10-29 00:03:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2505 transitions. [2021-10-29 00:03:30,895 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2505 transitions. Word has length 518 [2021-10-29 00:03:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:30,896 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2505 transitions. [2021-10-29 00:03:30,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-10-29 00:03:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2505 transitions. [2021-10-29 00:03:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2021-10-29 00:03:30,904 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:30,905 INFO L513 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, 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, 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] [2021-10-29 00:03:30,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 00:03:30,907 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:30,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:30,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1710737047, now seen corresponding path program 2 times [2021-10-29 00:03:30,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:30,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286460423] [2021-10-29 00:03:30,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:30,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 771 proven. 11 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-29 00:03:31,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:31,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286460423] [2021-10-29 00:03:31,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286460423] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:31,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153889678] [2021-10-29 00:03:31,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 00:03:31,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:31,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:31,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:31,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 00:03:31,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 00:03:31,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 00:03:31,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:31,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2021-10-29 00:03:33,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153889678] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:33,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:03:33,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-29 00:03:33,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611861275] [2021-10-29 00:03:33,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:33,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:33,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:03:33,419 INFO L87 Difference]: Start difference. First operand 2318 states and 2505 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2021-10-29 00:03:34,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:34,178 INFO L93 Difference]: Finished difference Result 4990 states and 5469 transitions. [2021-10-29 00:03:34,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:34,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 544 [2021-10-29 00:03:34,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:34,198 INFO L225 Difference]: With dead ends: 4990 [2021-10-29 00:03:34,198 INFO L226 Difference]: Without dead ends: 2852 [2021-10-29 00:03:34,202 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:03:34,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-29 00:03:34,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2021-10-29 00:03:34,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0849233071455293) internal successors, (2900), 2673 states have internal predecessors, (2900), 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) [2021-10-29 00:03:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2900 transitions. [2021-10-29 00:03:34,290 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2900 transitions. Word has length 544 [2021-10-29 00:03:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:34,291 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2900 transitions. [2021-10-29 00:03:34,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2021-10-29 00:03:34,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2900 transitions. [2021-10-29 00:03:34,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2021-10-29 00:03:34,300 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:34,300 INFO L513 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, 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, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:34,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:34,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:34,514 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:34,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:34,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1142838438, now seen corresponding path program 1 times [2021-10-29 00:03:34,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:34,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377429600] [2021-10-29 00:03:34,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:34,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 847 proven. 11 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-29 00:03:34,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:34,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377429600] [2021-10-29 00:03:34,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377429600] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:34,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153278774] [2021-10-29 00:03:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:34,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:34,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:34,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:34,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-29 00:03:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:35,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:35,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 1033 trivial. 0 not checked. [2021-10-29 00:03:37,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153278774] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:37,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:03:37,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-29 00:03:37,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332052547] [2021-10-29 00:03:37,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:37,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:37,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:37,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:03:37,105 INFO L87 Difference]: Start difference. First operand 2674 states and 2900 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2021-10-29 00:03:37,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:37,852 INFO L93 Difference]: Finished difference Result 5168 states and 5619 transitions. [2021-10-29 00:03:37,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:37,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 563 [2021-10-29 00:03:37,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:37,872 INFO L225 Difference]: With dead ends: 5168 [2021-10-29 00:03:37,873 INFO L226 Difference]: Without dead ends: 2674 [2021-10-29 00:03:37,877 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:03:37,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-29 00:03:37,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2021-10-29 00:03:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0797595190380762) internal successors, (2694), 2495 states have internal predecessors, (2694), 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) [2021-10-29 00:03:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2694 transitions. [2021-10-29 00:03:37,970 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2694 transitions. Word has length 563 [2021-10-29 00:03:37,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:37,971 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2694 transitions. [2021-10-29 00:03:37,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2021-10-29 00:03:37,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2694 transitions. [2021-10-29 00:03:37,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2021-10-29 00:03:37,981 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:37,982 INFO L513 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, 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, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:38,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:38,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:38,210 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:38,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:38,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1890446935, now seen corresponding path program 1 times [2021-10-29 00:03:38,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:38,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021615881] [2021-10-29 00:03:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:38,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1228 backedges. 868 proven. 11 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-29 00:03:38,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:38,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021615881] [2021-10-29 00:03:38,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021615881] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:38,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666887099] [2021-10-29 00:03:38,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:38,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:38,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:38,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:38,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 00:03:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:39,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 00:03:39,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1228 backedges. 879 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-29 00:03:44,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666887099] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:44,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:03:44,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-10-29 00:03:44,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906758315] [2021-10-29 00:03:44,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:03:44,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:44,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:03:44,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:03:44,531 INFO L87 Difference]: Start difference. First operand 2496 states and 2694 transitions. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 4 states have internal predecessors, (335), 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) [2021-10-29 00:03:45,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:45,675 INFO L93 Difference]: Finished difference Result 5168 states and 5608 transitions. [2021-10-29 00:03:45,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:45,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 4 states have internal predecessors, (335), 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 577 [2021-10-29 00:03:45,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:45,695 INFO L225 Difference]: With dead ends: 5168 [2021-10-29 00:03:45,695 INFO L226 Difference]: Without dead ends: 2852 [2021-10-29 00:03:45,699 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:03:45,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-29 00:03:45,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2318. [2021-10-29 00:03:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.077255071212775) internal successors, (2496), 2317 states have internal predecessors, (2496), 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) [2021-10-29 00:03:45,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2496 transitions. [2021-10-29 00:03:45,778 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2496 transitions. Word has length 577 [2021-10-29 00:03:45,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:45,779 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2496 transitions. [2021-10-29 00:03:45,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 4 states have internal predecessors, (335), 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) [2021-10-29 00:03:45,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2496 transitions. [2021-10-29 00:03:45,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2021-10-29 00:03:45,788 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:45,789 INFO L513 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, 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, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-29 00:03:45,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:46,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-29 00:03:46,006 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:46,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2022748667, now seen corresponding path program 1 times [2021-10-29 00:03:46,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:46,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687384189] [2021-10-29 00:03:46,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:46,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 807 proven. 93 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-29 00:03:46,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:46,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687384189] [2021-10-29 00:03:46,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687384189] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:46,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554896199] [2021-10-29 00:03:46,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:46,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:46,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:46,470 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:46,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-29 00:03:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:47,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:47,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:49,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 900 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-29 00:03:49,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554896199] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:49,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:03:49,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-29 00:03:49,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338157261] [2021-10-29 00:03:49,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:49,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:49,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:49,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:03:49,530 INFO L87 Difference]: Start difference. First operand 2318 states and 2496 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2021-10-29 00:03:50,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:50,207 INFO L93 Difference]: Finished difference Result 5524 states and 5995 transitions. [2021-10-29 00:03:50,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:50,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 651 [2021-10-29 00:03:50,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:50,235 INFO L225 Difference]: With dead ends: 5524 [2021-10-29 00:03:50,235 INFO L226 Difference]: Without dead ends: 3386 [2021-10-29 00:03:50,239 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:03:50,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-10-29 00:03:50,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2021-10-29 00:03:50,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0723781388478582) internal successors, (3630), 3385 states have internal predecessors, (3630), 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) [2021-10-29 00:03:50,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3630 transitions. [2021-10-29 00:03:50,373 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3630 transitions. Word has length 651 [2021-10-29 00:03:50,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:50,375 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3630 transitions. [2021-10-29 00:03:50,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2021-10-29 00:03:50,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3630 transitions. [2021-10-29 00:03:50,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2021-10-29 00:03:50,393 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:50,394 INFO L513 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, 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, 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, 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] [2021-10-29 00:03:50,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:50,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-29 00:03:50,610 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:50,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -253890537, now seen corresponding path program 1 times [2021-10-29 00:03:50,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:50,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092459283] [2021-10-29 00:03:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:50,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-29 00:03:51,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:51,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092459283] [2021-10-29 00:03:51,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092459283] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:51,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099306565] [2021-10-29 00:03:51,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:51,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:51,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:51,057 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:51,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-29 00:03:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:52,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 00:03:52,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:55,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-29 00:03:55,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099306565] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:55,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:55,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-29 00:03:55,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126607099] [2021-10-29 00:03:55,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:03:55,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:55,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:03:55,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:55,078 INFO L87 Difference]: Start difference. First operand 3386 states and 3630 transitions. Second operand has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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) [2021-10-29 00:03:56,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:56,092 INFO L93 Difference]: Finished difference Result 7660 states and 8245 transitions. [2021-10-29 00:03:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:56,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 806 [2021-10-29 00:03:56,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:56,121 INFO L225 Difference]: With dead ends: 7660 [2021-10-29 00:03:56,122 INFO L226 Difference]: Without dead ends: 4454 [2021-10-29 00:03:56,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 807 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:56,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2021-10-29 00:03:56,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4098. [2021-10-29 00:03:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0754210397852086) internal successors, (4406), 4097 states have internal predecessors, (4406), 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) [2021-10-29 00:03:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4406 transitions. [2021-10-29 00:03:56,245 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4406 transitions. Word has length 806 [2021-10-29 00:03:56,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:56,246 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4406 transitions. [2021-10-29 00:03:56,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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) [2021-10-29 00:03:56,248 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4406 transitions. [2021-10-29 00:03:56,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2021-10-29 00:03:56,285 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:56,286 INFO L513 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, 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:56,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:56,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:56,487 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:56,487 INFO L85 PathProgramCache]: Analyzing trace with hash -685925002, now seen corresponding path program 1 times [2021-10-29 00:03:56,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:56,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619521976] [2021-10-29 00:03:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:56,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2343 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2021-10-29 00:03:56,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:56,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619521976] [2021-10-29 00:03:56,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619521976] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:56,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:56,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:56,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586323618] [2021-10-29 00:03:56,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:56,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:56,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:56,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:56,914 INFO L87 Difference]: Start difference. First operand 4098 states and 4406 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) [2021-10-29 00:03:57,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:57,596 INFO L93 Difference]: Finished difference Result 8550 states and 9249 transitions. [2021-10-29 00:03:57,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:57,607 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 878 [2021-10-29 00:03:57,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:57,636 INFO L225 Difference]: With dead ends: 8550 [2021-10-29 00:03:57,636 INFO L226 Difference]: Without dead ends: 4632 [2021-10-29 00:03:57,642 INFO L786 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 [2021-10-29 00:03:57,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-10-29 00:03:57,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2021-10-29 00:03:57,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.076657309436407) internal successors, (4986), 4631 states have internal predecessors, (4986), 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) [2021-10-29 00:03:57,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4986 transitions. [2021-10-29 00:03:57,752 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4986 transitions. Word has length 878 [2021-10-29 00:03:57,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:57,753 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4986 transitions. [2021-10-29 00:03:57,753 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) [2021-10-29 00:03:57,754 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4986 transitions. [2021-10-29 00:03:57,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2021-10-29 00:03:57,768 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:57,769 INFO L513 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, 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:57,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-29 00:03:57,770 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:57,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:57,771 INFO L85 PathProgramCache]: Analyzing trace with hash -32320893, now seen corresponding path program 1 times [2021-10-29 00:03:57,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:57,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557637536] [2021-10-29 00:03:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:57,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:58,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1590 proven. 93 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2021-10-29 00:03:58,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:58,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557637536] [2021-10-29 00:03:58,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557637536] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:58,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410813829] [2021-10-29 00:03:58,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:58,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:58,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:58,414 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:58,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-29 00:04:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:00,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 00:04:00,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:03,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1683 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2021-10-29 00:04:03,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410813829] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:03,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:04:03,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-29 00:04:03,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987091612] [2021-10-29 00:04:03,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:03,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:03,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:03,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:04:03,373 INFO L87 Difference]: Start difference. First operand 4632 states and 4986 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) [2021-10-29 00:04:03,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:03,954 INFO L93 Difference]: Finished difference Result 9618 states and 10334 transitions. [2021-10-29 00:04:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:03,955 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 896 [2021-10-29 00:04:03,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:03,967 INFO L225 Difference]: With dead ends: 9618 [2021-10-29 00:04:03,967 INFO L226 Difference]: Without dead ends: 5166 [2021-10-29 00:04:03,974 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 899 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:04:03,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-10-29 00:04:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4810. [2021-10-29 00:04:04,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0744437512996465) internal successors, (5167), 4809 states have internal predecessors, (5167), 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) [2021-10-29 00:04:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5167 transitions. [2021-10-29 00:04:04,075 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5167 transitions. Word has length 896 [2021-10-29 00:04:04,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:04,076 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5167 transitions. [2021-10-29 00:04:04,076 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) [2021-10-29 00:04:04,076 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5167 transitions. [2021-10-29 00:04:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2021-10-29 00:04:04,121 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:04,122 INFO L513 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, 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, 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, 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] [2021-10-29 00:04:04,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:04,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:04,338 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:04,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:04,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1437208854, now seen corresponding path program 1 times [2021-10-29 00:04:04,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:04,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408913936] [2021-10-29 00:04:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:04,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 981 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2021-10-29 00:04:05,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:05,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408913936] [2021-10-29 00:04:05,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408913936] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:05,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:05,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:04:05,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173292606] [2021-10-29 00:04:05,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:05,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:05,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:05,176 INFO L87 Difference]: Start difference. First operand 4810 states and 5167 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2021-10-29 00:04:06,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:06,002 INFO L93 Difference]: Finished difference Result 9440 states and 10153 transitions. [2021-10-29 00:04:06,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:06,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 973 [2021-10-29 00:04:06,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:06,016 INFO L225 Difference]: With dead ends: 9440 [2021-10-29 00:04:06,016 INFO L226 Difference]: Without dead ends: 4810 [2021-10-29 00:04:06,023 INFO L786 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 [2021-10-29 00:04:06,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-10-29 00:04:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-10-29 00:04:06,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0617592014971928) internal successors, (5106), 4809 states have internal predecessors, (5106), 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) [2021-10-29 00:04:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5106 transitions. [2021-10-29 00:04:06,150 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5106 transitions. Word has length 973 [2021-10-29 00:04:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:06,152 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5106 transitions. [2021-10-29 00:04:06,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2021-10-29 00:04:06,153 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5106 transitions. [2021-10-29 00:04:06,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2021-10-29 00:04:06,179 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:06,182 INFO L513 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, 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, 9, 8, 8, 8, 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, 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] [2021-10-29 00:04:06,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-29 00:04:06,182 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:06,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:06,183 INFO L85 PathProgramCache]: Analyzing trace with hash 659097908, now seen corresponding path program 1 times [2021-10-29 00:04:06,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:06,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253979565] [2021-10-29 00:04:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:06,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3560 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2021-10-29 00:04:06,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:06,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253979565] [2021-10-29 00:04:06,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253979565] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:06,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:06,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:04:06,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887066923] [2021-10-29 00:04:06,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:06,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:06,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:06,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:06,807 INFO L87 Difference]: Start difference. First operand 4810 states and 5106 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2021-10-29 00:04:07,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:07,521 INFO L93 Difference]: Finished difference Result 9618 states and 10226 transitions. [2021-10-29 00:04:07,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:07,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 1048 [2021-10-29 00:04:07,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:07,534 INFO L225 Difference]: With dead ends: 9618 [2021-10-29 00:04:07,535 INFO L226 Difference]: Without dead ends: 4988 [2021-10-29 00:04:07,542 INFO L786 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 [2021-10-29 00:04:07,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-29 00:04:07,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2021-10-29 00:04:07,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0517345097252857) internal successors, (5245), 4987 states have internal predecessors, (5245), 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) [2021-10-29 00:04:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5245 transitions. [2021-10-29 00:04:07,691 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5245 transitions. Word has length 1048 [2021-10-29 00:04:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:07,693 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5245 transitions. [2021-10-29 00:04:07,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2021-10-29 00:04:07,693 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5245 transitions. [2021-10-29 00:04:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1097 [2021-10-29 00:04:07,729 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:07,731 INFO L513 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, 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, 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, 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] [2021-10-29 00:04:07,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-29 00:04:07,732 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:07,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1358554948, now seen corresponding path program 1 times [2021-10-29 00:04:07,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:07,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824538895] [2021-10-29 00:04:07,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:07,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:08,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2746 proven. 72 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2021-10-29 00:04:08,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:08,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824538895] [2021-10-29 00:04:08,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824538895] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:08,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003967735] [2021-10-29 00:04:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:08,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:08,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:04:08,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:04:08,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-29 00:04:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:11,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 00:04:11,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2459 proven. 0 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2021-10-29 00:04:14,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003967735] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:14,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:04:14,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-10-29 00:04:14,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876360001] [2021-10-29 00:04:14,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:04:14,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:14,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:04:14,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:14,394 INFO L87 Difference]: Start difference. First operand 4988 states and 5245 transitions. Second operand has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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) [2021-10-29 00:04:15,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:15,347 INFO L93 Difference]: Finished difference Result 10864 states and 11446 transitions. [2021-10-29 00:04:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:04:15,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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 1096 [2021-10-29 00:04:15,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:15,360 INFO L225 Difference]: With dead ends: 10864 [2021-10-29 00:04:15,360 INFO L226 Difference]: Without dead ends: 6056 [2021-10-29 00:04:15,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1100 GetRequests, 1095 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:15,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-10-29 00:04:15,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5700. [2021-10-29 00:04:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0498333040884367) internal successors, (5983), 5699 states have internal predecessors, (5983), 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) [2021-10-29 00:04:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5983 transitions. [2021-10-29 00:04:15,466 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5983 transitions. Word has length 1096 [2021-10-29 00:04:15,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:15,468 INFO L470 AbstractCegarLoop]: Abstraction has 5700 states and 5983 transitions. [2021-10-29 00:04:15,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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) [2021-10-29 00:04:15,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5983 transitions. [2021-10-29 00:04:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2021-10-29 00:04:15,495 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:15,496 INFO L513 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, 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, 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, 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] [2021-10-29 00:04:15,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:15,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-29 00:04:15,722 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:15,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:15,722 INFO L85 PathProgramCache]: Analyzing trace with hash -10639510, now seen corresponding path program 1 times [2021-10-29 00:04:15,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:15,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459628666] [2021-10-29 00:04:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:15,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:16,414 INFO L134 CoverageAnalysis]: Checked inductivity of 5871 backedges. 3038 proven. 0 refuted. 0 times theorem prover too weak. 2833 trivial. 0 not checked. [2021-10-29 00:04:16,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:16,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459628666] [2021-10-29 00:04:16,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459628666] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:16,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:16,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:04:16,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405919064] [2021-10-29 00:04:16,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:16,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:16,419 INFO L87 Difference]: Start difference. First operand 5700 states and 5983 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) [2021-10-29 00:04:17,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:17,099 INFO L93 Difference]: Finished difference Result 11576 states and 12161 transitions. [2021-10-29 00:04:17,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:17,100 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 1336 [2021-10-29 00:04:17,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:17,115 INFO L225 Difference]: With dead ends: 11576 [2021-10-29 00:04:17,116 INFO L226 Difference]: Without dead ends: 6056 [2021-10-29 00:04:17,124 INFO L786 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 [2021-10-29 00:04:17,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-10-29 00:04:17,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5700. [2021-10-29 00:04:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0480786102825057) internal successors, (5973), 5699 states have internal predecessors, (5973), 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) [2021-10-29 00:04:17,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5973 transitions. [2021-10-29 00:04:17,243 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5973 transitions. Word has length 1336 [2021-10-29 00:04:17,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:17,245 INFO L470 AbstractCegarLoop]: Abstraction has 5700 states and 5973 transitions. [2021-10-29 00:04:17,246 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) [2021-10-29 00:04:17,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5973 transitions. [2021-10-29 00:04:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1634 [2021-10-29 00:04:17,302 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:17,303 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:17,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-29 00:04:17,304 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:17,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2052479464, now seen corresponding path program 1 times [2021-10-29 00:04:17,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:17,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158018156] [2021-10-29 00:04:17,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:17,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 4297 proven. 588 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2021-10-29 00:04:18,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:18,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158018156] [2021-10-29 00:04:18,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158018156] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:18,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793591686] [2021-10-29 00:04:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:18,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:18,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:04:18,986 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:04:19,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-29 00:04:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:21,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1998 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 00:04:21,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:28,466 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 3486 proven. 438 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-10-29 00:04:28,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793591686] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:28,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:04:28,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-29 00:04:28,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247076880] [2021-10-29 00:04:28,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 00:04:28,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:28,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 00:04:28,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-29 00:04:28,475 INFO L87 Difference]: Start difference. First operand 5700 states and 5973 transitions. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-10-29 00:04:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:36,478 INFO L93 Difference]: Finished difference Result 14085 states and 14786 transitions. [2021-10-29 00:04:36,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 00:04:36,479 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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 1633 [2021-10-29 00:04:36,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:36,497 INFO L225 Difference]: With dead ends: 14085 [2021-10-29 00:04:36,498 INFO L226 Difference]: Without dead ends: 8548 [2021-10-29 00:04:36,504 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1659 GetRequests, 1640 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2021-10-29 00:04:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8548 states. [2021-10-29 00:04:36,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8548 to 6946. [2021-10-29 00:04:36,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6946 states, 6945 states have (on average 1.041324694024478) internal successors, (7232), 6945 states have internal predecessors, (7232), 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) [2021-10-29 00:04:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 7232 transitions. [2021-10-29 00:04:36,647 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 7232 transitions. Word has length 1633 [2021-10-29 00:04:36,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:36,649 INFO L470 AbstractCegarLoop]: Abstraction has 6946 states and 7232 transitions. [2021-10-29 00:04:36,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-10-29 00:04:36,650 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 7232 transitions. [2021-10-29 00:04:36,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1807 [2021-10-29 00:04:36,689 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:36,691 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 10, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:36,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:36,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:36,913 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:36,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:36,914 INFO L85 PathProgramCache]: Analyzing trace with hash 334826005, now seen corresponding path program 1 times [2021-10-29 00:04:36,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:36,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204573997] [2021-10-29 00:04:36,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:36,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:38,377 INFO L134 CoverageAnalysis]: Checked inductivity of 10109 backedges. 3302 proven. 1045 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2021-10-29 00:04:38,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:38,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204573997] [2021-10-29 00:04:38,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204573997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:38,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550998588] [2021-10-29 00:04:38,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:38,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:38,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:04:38,380 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:04:38,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-29 00:04:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:41,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:04:41,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:45,947 INFO L134 CoverageAnalysis]: Checked inductivity of 10109 backedges. 4347 proven. 0 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2021-10-29 00:04:45,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550998588] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:45,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:04:45,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-29 00:04:45,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563063521] [2021-10-29 00:04:45,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:45,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:45,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:04:45,952 INFO L87 Difference]: Start difference. First operand 6946 states and 7232 transitions. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-10-29 00:04:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:46,457 INFO L93 Difference]: Finished difference Result 15136 states and 15733 transitions. [2021-10-29 00:04:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:46,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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 1806 [2021-10-29 00:04:46,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:46,471 INFO L225 Difference]: With dead ends: 15136 [2021-10-29 00:04:46,472 INFO L226 Difference]: Without dead ends: 4632 [2021-10-29 00:04:46,484 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1809 GetRequests, 1805 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:04:46,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-10-29 00:04:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2021-10-29 00:04:46,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0222414165407039) internal successors, (4734), 4631 states have internal predecessors, (4734), 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) [2021-10-29 00:04:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4734 transitions. [2021-10-29 00:04:46,556 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4734 transitions. Word has length 1806 [2021-10-29 00:04:46,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:46,558 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4734 transitions. [2021-10-29 00:04:46,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-10-29 00:04:46,559 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4734 transitions. [2021-10-29 00:04:46,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1878 [2021-10-29 00:04:46,648 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:46,650 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:46,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:46,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2021-10-29 00:04:46,874 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:46,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:46,875 INFO L85 PathProgramCache]: Analyzing trace with hash -99629901, now seen corresponding path program 1 times [2021-10-29 00:04:46,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:46,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574696235] [2021-10-29 00:04:46,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:46,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 11531 backedges. 4599 proven. 121 refuted. 0 times theorem prover too weak. 6811 trivial. 0 not checked. [2021-10-29 00:04:48,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:48,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574696235] [2021-10-29 00:04:48,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574696235] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:48,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2814117] [2021-10-29 00:04:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:48,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:48,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:04:48,013 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:04:48,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-29 00:04:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:51,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 2288 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 00:04:51,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:56,592 INFO L134 CoverageAnalysis]: Checked inductivity of 11531 backedges. 6920 proven. 0 refuted. 0 times theorem prover too weak. 4611 trivial. 0 not checked. [2021-10-29 00:04:56,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2814117] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:56,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:04:56,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 7 [2021-10-29 00:04:56,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477006572] [2021-10-29 00:04:56,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:04:56,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:56,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:04:56,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:56,598 INFO L87 Difference]: Start difference. First operand 4632 states and 4734 transitions. Second operand has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 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) [2021-10-29 00:04:58,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:58,021 INFO L93 Difference]: Finished difference Result 10864 states and 11148 transitions. [2021-10-29 00:04:58,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:04:58,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 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 1877 [2021-10-29 00:04:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:58,030 INFO L225 Difference]: With dead ends: 10864 [2021-10-29 00:04:58,030 INFO L226 Difference]: Without dead ends: 5700 [2021-10-29 00:04:58,034 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1880 GetRequests, 1875 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:58,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-10-29 00:04:58,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4988. [2021-10-29 00:04:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0156406657309003) internal successors, (5065), 4987 states have internal predecessors, (5065), 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) [2021-10-29 00:04:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5065 transitions. [2021-10-29 00:04:58,108 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5065 transitions. Word has length 1877 [2021-10-29 00:04:58,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:58,110 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5065 transitions. [2021-10-29 00:04:58,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 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) [2021-10-29 00:04:58,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5065 transitions. [2021-10-29 00:04:58,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1931 [2021-10-29 00:04:58,149 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:58,151 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:58,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:58,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:58,366 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:58,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash -704009136, now seen corresponding path program 1 times [2021-10-29 00:04:58,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:58,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797418782] [2021-10-29 00:04:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:58,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:05:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 11699 backedges. 6822 proven. 404 refuted. 0 times theorem prover too weak. 4473 trivial. 0 not checked. [2021-10-29 00:05:00,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:05:00,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797418782] [2021-10-29 00:05:00,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797418782] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:05:00,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509034866] [2021-10-29 00:05:00,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:05:00,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:05:00,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:05:00,081 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:05:00,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-29 00:05:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:05:04,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 00:05:04,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:05:09,621 INFO L134 CoverageAnalysis]: Checked inductivity of 11699 backedges. 2024 proven. 0 refuted. 0 times theorem prover too weak. 9675 trivial. 0 not checked. [2021-10-29 00:05:09,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509034866] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:05:09,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:05:09,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-29 00:05:09,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33270588] [2021-10-29 00:05:09,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:05:09,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:05:09,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:05:09,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:05:09,626 INFO L87 Difference]: Start difference. First operand 4988 states and 5065 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2021-10-29 00:05:10,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:05:10,059 INFO L93 Difference]: Finished difference Result 9796 states and 9953 transitions. [2021-10-29 00:05:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:05:10,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 1930 [2021-10-29 00:05:10,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:05:10,065 INFO L225 Difference]: With dead ends: 9796 [2021-10-29 00:05:10,065 INFO L226 Difference]: Without dead ends: 5166 [2021-10-29 00:05:10,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1934 GetRequests, 1929 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:05:10,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-10-29 00:05:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2021-10-29 00:05:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0150391016643272) internal successors, (5062), 4987 states have internal predecessors, (5062), 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) [2021-10-29 00:05:10,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5062 transitions. [2021-10-29 00:05:10,142 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5062 transitions. Word has length 1930 [2021-10-29 00:05:10,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:05:10,144 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5062 transitions. [2021-10-29 00:05:10,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2021-10-29 00:05:10,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5062 transitions. [2021-10-29 00:05:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2128 [2021-10-29 00:05:10,221 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:05:10,222 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:05:10,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-29 00:05:10,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:05:10,448 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:05:10,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:05:10,449 INFO L85 PathProgramCache]: Analyzing trace with hash -263362451, now seen corresponding path program 1 times [2021-10-29 00:05:10,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:05:10,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755439604] [2021-10-29 00:05:10,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:05:10,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:05:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:05:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 14633 backedges. 10201 proven. 103 refuted. 0 times theorem prover too weak. 4329 trivial. 0 not checked. [2021-10-29 00:05:12,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:05:12,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755439604] [2021-10-29 00:05:12,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755439604] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:05:12,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25925913] [2021-10-29 00:05:12,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:05:12,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:05:12,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:05:12,205 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:05:12,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-29 00:05:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:05:17,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 2584 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:05:17,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:05:23,182 INFO L134 CoverageAnalysis]: Checked inductivity of 14633 backedges. 9451 proven. 0 refuted. 0 times theorem prover too weak. 5182 trivial. 0 not checked. [2021-10-29 00:05:23,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25925913] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:05:23,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:05:23,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-29 00:05:23,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339061595] [2021-10-29 00:05:23,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:05:23,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:05:23,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:05:23,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:05:23,185 INFO L87 Difference]: Start difference. First operand 4988 states and 5062 transitions. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2021-10-29 00:05:23,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:05:23,601 INFO L93 Difference]: Finished difference Result 8728 states and 8851 transitions. [2021-10-29 00:05:23,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:05:23,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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 2127 [2021-10-29 00:05:23,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:05:23,607 INFO L225 Difference]: With dead ends: 8728 [2021-10-29 00:05:23,608 INFO L226 Difference]: Without dead ends: 4098 [2021-10-29 00:05:23,610 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2131 GetRequests, 2126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:05:23,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-10-29 00:05:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2021-10-29 00:05:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0104250200481155) internal successors, (3780), 3741 states have internal predecessors, (3780), 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) [2021-10-29 00:05:23,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3780 transitions. [2021-10-29 00:05:23,656 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3780 transitions. Word has length 2127 [2021-10-29 00:05:23,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:05:23,659 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 3780 transitions. [2021-10-29 00:05:23,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2021-10-29 00:05:23,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3780 transitions. [2021-10-29 00:05:23,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2348 [2021-10-29 00:05:23,714 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:05:23,715 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 14, 14, 14, 13, 13, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 7, 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, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:05:23,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-29 00:05:23,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-29 00:05:23,938 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:05:23,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:05:23,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1943758325, now seen corresponding path program 1 times [2021-10-29 00:05:23,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:05:23,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856700903] [2021-10-29 00:05:23,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:05:23,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:05:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:05:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 4239 proven. 0 refuted. 0 times theorem prover too weak. 13152 trivial. 0 not checked. [2021-10-29 00:05:25,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:05:25,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856700903] [2021-10-29 00:05:25,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856700903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:05:25,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:05:25,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:05:25,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232503748] [2021-10-29 00:05:25,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:05:25,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:05:25,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:05:25,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:05:25,674 INFO L87 Difference]: Start difference. First operand 3742 states and 3780 transitions. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2021-10-29 00:05:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:05:26,123 INFO L93 Difference]: Finished difference Result 4810 states and 4865 transitions. [2021-10-29 00:05:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:05:26,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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 2347 [2021-10-29 00:05:26,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:05:26,125 INFO L225 Difference]: With dead ends: 4810 [2021-10-29 00:05:26,125 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 00:05:26,127 INFO L786 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 [2021-10-29 00:05:26,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 00:05:26,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 00:05:26,128 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) [2021-10-29 00:05:26,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 00:05:26,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2347 [2021-10-29 00:05:26,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:05:26,130 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 00:05:26,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2021-10-29 00:05:26,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 00:05:26,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 00:05:26,134 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:05:26,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-29 00:05:26,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 00:05:26,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:05:26,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:05:26,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:05:28,521 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-29 00:05:28,522 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-29 00:05:28,523 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-29 00:05:28,524 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-29 00:05:28,524 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-29 00:05:28,524 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-29 00:05:28,524 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-29 00:05:28,524 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-29 00:05:28,524 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,525 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,525 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,525 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-29 00:05:28,525 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-29 00:05:28,525 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-29 00:05:28,526 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-29 00:05:28,526 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-29 00:05:28,526 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-29 00:05:28,526 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-29 00:05:28,526 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,526 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,527 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,527 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-29 00:05:28,527 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-29 00:05:28,527 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-29 00:05:28,527 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-29 00:05:28,527 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-29 00:05:28,527 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-29 00:05:28,527 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-29 00:05:28,527 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,528 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,529 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,530 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-29 00:05:28,530 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-29 00:05:28,530 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-29 00:05:28,530 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-29 00:05:28,530 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-29 00:05:28,530 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-29 00:05:28,530 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-29 00:05:28,530 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 00:05:28,531 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,531 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,531 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,531 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-29 00:05:28,531 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-29 00:05:28,531 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-29 00:05:28,531 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-29 00:05:28,532 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 00:05:28,533 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-29 00:05:28,534 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-29 00:05:28,535 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-29 00:05:28,536 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-29 00:05:28,537 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,538 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-29 00:05:28,539 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 00:05:28,540 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-29 00:05:28,540 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-29 00:05:28,540 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-29 00:05:28,540 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-29 00:05:28,540 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-29 00:05:28,540 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,540 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,541 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse6 (<= (+ 49 ~a12~0) 0)) (.cse5 (not (= 7 ~a15~0))) (.cse11 (< 18 ~a12~0)) (.cse12 (<= ~a12~0 71)) (.cse8 (<= 82 ~a12~0)) (.cse13 (<= 9 ~a15~0)) (.cse3 (<= ~a12~0 10)) (.cse15 (< 0 (+ ~a12~0 43))) (.cse4 (<= 10 ~a21~0)) (.cse14 (< 95380 ~a12~0)) (.cse2 (<= ~a21~0 6)) (.cse1 (<= ~a15~0 8)) (.cse7 (<= ~a15~0 7)) (.cse0 (= ~a24~0 1)) (.cse9 (<= 8 ~a21~0)) (.cse10 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 (<= 286349 ~a12~0)) (and .cse0 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse6) (and .cse2 .cse7 .cse6) (and .cse8 (<= ~a12~0 73282) .cse0 .cse9 .cse10) (and .cse0 .cse9 .cse10 .cse11 .cse12) (and .cse0 .cse1 (<= ~a12~0 76) .cse9 .cse11) (and .cse0 .cse13 (<= ~a12~0 95433) .cse14) (and .cse0 .cse7 .cse5 .cse11 .cse12) (and .cse0 .cse1 .cse3 .cse15) (and .cse8 .cse0 (<= 7 ~a21~0) .cse13) (and .cse0 .cse3 .cse9 .cse10 .cse15) (and .cse0 .cse1 (exists ((v_~a12~0_444 Int)) (and (< 95380 v_~a12~0_444) (<= (+ 546123 ~a12~0) (div (* v_~a12~0_444 9) 10)) (<= v_~a12~0_444 95434)))) (and .cse0 .cse4 .cse14) (and .cse0 .cse2 .cse7) (and (<= ~a12~0 11) .cse0 .cse1 .cse9) (and .cse0 .cse7 .cse9) (and .cse0 .cse9 .cse10 (<= (+ ~a12~0 526767) 0)))) [2021-10-29 00:05:28,541 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-29 00:05:28,541 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-29 00:05:28,541 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-29 00:05:28,541 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-29 00:05:28,541 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-29 00:05:28,542 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-29 00:05:28,542 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-29 00:05:28,542 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-29 00:05:28,542 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,542 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,543 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-29 00:05:28,543 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-29 00:05:28,543 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-29 00:05:28,543 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-29 00:05:28,543 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-29 00:05:28,543 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-29 00:05:28,544 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-29 00:05:28,544 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-29 00:05:28,544 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,544 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,544 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 00:05:28,544 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-29 00:05:28,545 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-29 00:05:28,545 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-29 00:05:28,545 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-29 00:05:28,545 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-29 00:05:28,545 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-29 00:05:28,545 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,546 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,546 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-29 00:05:28,546 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,546 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-29 00:05:28,547 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse6 (<= (+ 49 ~a12~0) 0)) (.cse5 (not (= 7 ~a15~0))) (.cse11 (< 18 ~a12~0)) (.cse12 (<= ~a12~0 71)) (.cse8 (<= 82 ~a12~0)) (.cse13 (<= 9 ~a15~0)) (.cse3 (<= ~a12~0 10)) (.cse15 (< 0 (+ ~a12~0 43))) (.cse4 (<= 10 ~a21~0)) (.cse14 (< 95380 ~a12~0)) (.cse2 (<= ~a21~0 6)) (.cse1 (<= ~a15~0 8)) (.cse7 (<= ~a15~0 7)) (.cse0 (= ~a24~0 1)) (.cse9 (<= 8 ~a21~0)) (.cse10 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 (<= 286349 ~a12~0)) (and .cse0 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse6) (and .cse2 .cse7 .cse6) (and .cse8 (<= ~a12~0 73282) .cse0 .cse9 .cse10) (and .cse0 .cse9 .cse10 .cse11 .cse12) (and .cse0 .cse1 (<= ~a12~0 76) .cse9 .cse11) (and .cse0 .cse13 (<= ~a12~0 95433) .cse14) (and .cse0 .cse7 .cse5 .cse11 .cse12) (and .cse0 .cse1 .cse3 .cse15) (and .cse8 .cse0 (<= 7 ~a21~0) .cse13) (and .cse0 .cse3 .cse9 .cse10 .cse15) (and .cse0 .cse1 (exists ((v_~a12~0_444 Int)) (and (< 95380 v_~a12~0_444) (<= (+ 546123 ~a12~0) (div (* v_~a12~0_444 9) 10)) (<= v_~a12~0_444 95434)))) (and .cse0 .cse4 .cse14) (and .cse0 .cse2 .cse7) (and (<= ~a12~0 11) .cse0 .cse1 .cse9) (and .cse0 .cse7 .cse9) (and .cse0 .cse9 .cse10 (<= (+ ~a12~0 526767) 0)))) [2021-10-29 00:05:28,547 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-29 00:05:28,547 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-29 00:05:28,547 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-29 00:05:28,547 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-29 00:05:28,547 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-29 00:05:28,548 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-29 00:05:28,548 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-29 00:05:28,548 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-29 00:05:28,548 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-29 00:05:28,548 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,548 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,549 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:05:28,549 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-29 00:05:28,549 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-29 00:05:28,549 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-29 00:05:28,549 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-29 00:05:28,553 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:05:28,555 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:05:28,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,570 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,592 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,593 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,593 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:05:28 BoogieIcfgContainer [2021-10-29 00:05:28,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:05:28,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:05:28,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:05:28,598 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:05:28,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:17" (3/4) ... [2021-10-29 00:05:28,603 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 00:05:28,634 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 00:05:28,636 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 00:05:28,638 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:05:28,640 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:05:28,672 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((a24 == 1 && a15 <= 8) && a21 <= 6) && 286349 <= a12) || ((a24 == 1 && a12 <= 10) && 10 <= a21)) || (((a24 == 1 && a15 <= 8) && !(7 == a15)) && 49 + a12 <= 0)) || ((a21 <= 6 && a15 <= 7) && 49 + a12 <= 0)) || ((((82 <= a12 && a12 <= 73282) && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 8 <= a21) && a21 <= 8) && 18 < a12) && a12 <= 71)) || ((((a24 == 1 && a15 <= 8) && a12 <= 76) && 8 <= a21) && 18 < a12)) || (((a24 == 1 && 9 <= a15) && a12 <= 95433) && 95380 < a12)) || ((((a24 == 1 && a15 <= 7) && !(7 == a15)) && 18 < a12) && a12 <= 71)) || (((a24 == 1 && a15 <= 8) && a12 <= 10) && 0 < a12 + 43)) || (((82 <= a12 && a24 == 1) && 7 <= a21) && 9 <= a15)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((a24 == 1 && a15 <= 8) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 10 <= a21) && 95380 < a12)) || ((a24 == 1 && a21 <= 6) && a15 <= 7)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && 8 <= a21)) || ((a24 == 1 && a15 <= 7) && 8 <= a21)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0) [2021-10-29 00:05:28,677 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((a24 == 1 && a15 <= 8) && a21 <= 6) && 286349 <= a12) || ((a24 == 1 && a12 <= 10) && 10 <= a21)) || (((a24 == 1 && a15 <= 8) && !(7 == a15)) && 49 + a12 <= 0)) || ((a21 <= 6 && a15 <= 7) && 49 + a12 <= 0)) || ((((82 <= a12 && a12 <= 73282) && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 8 <= a21) && a21 <= 8) && 18 < a12) && a12 <= 71)) || ((((a24 == 1 && a15 <= 8) && a12 <= 76) && 8 <= a21) && 18 < a12)) || (((a24 == 1 && 9 <= a15) && a12 <= 95433) && 95380 < a12)) || ((((a24 == 1 && a15 <= 7) && !(7 == a15)) && 18 < a12) && a12 <= 71)) || (((a24 == 1 && a15 <= 8) && a12 <= 10) && 0 < a12 + 43)) || (((82 <= a12 && a24 == 1) && 7 <= a21) && 9 <= a15)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((a24 == 1 && a15 <= 8) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 10 <= a21) && 95380 < a12)) || ((a24 == 1 && a21 <= 6) && a15 <= 7)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && 8 <= a21)) || ((a24 == 1 && a15 <= 7) && 8 <= a21)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0) [2021-10-29 00:05:28,829 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:05:28,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:05:28,831 INFO L168 Benchmark]: Toolchain (without parser) took 134563.15 ms. Allocated memory was 92.3 MB in the beginning and 4.3 GB in the end (delta: 4.3 GB). Free memory was 50.9 MB in the beginning and 3.1 GB in the end (delta: -3.1 GB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. [2021-10-29 00:05:28,832 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 92.3 MB. Free memory is still 69.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:05:28,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1117.25 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 50.7 MB in the beginning and 71.9 MB in the end (delta: -21.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:28,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 156.91 ms. Allocated memory is still 121.6 MB. Free memory was 71.3 MB in the beginning and 62.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:28,833 INFO L168 Benchmark]: Boogie Preprocessor took 150.32 ms. Allocated memory is still 121.6 MB. Free memory was 62.2 MB in the beginning and 55.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:28,834 INFO L168 Benchmark]: RCFGBuilder took 1880.37 ms. Allocated memory is still 121.6 MB. Free memory was 55.8 MB in the beginning and 80.3 MB in the end (delta: -24.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:28,834 INFO L168 Benchmark]: TraceAbstraction took 131016.59 ms. Allocated memory was 121.6 MB in the beginning and 4.3 GB in the end (delta: 4.2 GB). Free memory was 79.6 MB in the beginning and 3.1 GB in the end (delta: -3.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. [2021-10-29 00:05:28,835 INFO L168 Benchmark]: Witness Printer took 231.98 ms. Allocated memory is still 4.3 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:28,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 92.3 MB. Free memory is still 69.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1117.25 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 50.7 MB in the beginning and 71.9 MB in the end (delta: -21.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 156.91 ms. Allocated memory is still 121.6 MB. Free memory was 71.3 MB in the beginning and 62.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 150.32 ms. Allocated memory is still 121.6 MB. Free memory was 62.2 MB in the beginning and 55.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1880.37 ms. Allocated memory is still 121.6 MB. Free memory was 55.8 MB in the beginning and 80.3 MB in the end (delta: -24.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 131016.59 ms. Allocated memory was 121.6 MB in the beginning and 4.3 GB in the end (delta: 4.2 GB). Free memory was 79.6 MB in the beginning and 3.1 GB in the end (delta: -3.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. * Witness Printer took 231.98 ms. Allocated memory is still 4.3 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] * 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: 125]: 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: 130.8s, OverallIterations: 24, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.6s, AutomataDifference: 28.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3045 SDtfs, 3660 SDslu, 300 SDs, 0 SdLazy, 23203 SolverSat, 1738 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14944 GetRequests, 14856 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6946occurred in iteration=19, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 24 MinimizatonAttempts, 5696 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 102 NumberOfFragments, 517 HoareAnnotationTreeSize, 3 FomulaSimplifications, 9852 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2900 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.6s SsaConstructionTime, 6.0s SatisfiabilityAnalysisTime, 59.8s InterpolantComputationTime, 38120 NumberOfCodeBlocks, 38120 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 38083 ConstructedInterpolants, 35 QuantifiedInterpolants, 108026 SizeOfPredicates, 1 NumberOfNonLiveVariables, 18437 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 37 InterpolantComputations, 22 PerfectInterpolantSequences, 170820/174250 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 [2021-10-29 00:05:28,848 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] Derived loop invariant: (((((((((((((((((((a24 == 1 && a15 <= 8) && a21 <= 6) && 286349 <= a12) || ((a24 == 1 && a12 <= 10) && 10 <= a21)) || (((a24 == 1 && a15 <= 8) && !(7 == a15)) && 49 + a12 <= 0)) || ((a21 <= 6 && a15 <= 7) && 49 + a12 <= 0)) || ((((82 <= a12 && a12 <= 73282) && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 8 <= a21) && a21 <= 8) && 18 < a12) && a12 <= 71)) || ((((a24 == 1 && a15 <= 8) && a12 <= 76) && 8 <= a21) && 18 < a12)) || (((a24 == 1 && 9 <= a15) && a12 <= 95433) && 95380 < a12)) || ((((a24 == 1 && a15 <= 7) && !(7 == a15)) && 18 < a12) && a12 <= 71)) || (((a24 == 1 && a15 <= 8) && a12 <= 10) && 0 < a12 + 43)) || (((82 <= a12 && a24 == 1) && 7 <= a21) && 9 <= a15)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((a24 == 1 && a15 <= 8) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 10 <= a21) && 95380 < a12)) || ((a24 == 1 && a21 <= 6) && a15 <= 7)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && 8 <= a21)) || ((a24 == 1 && a15 <= 7) && 8 <= a21)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant [2021-10-29 00:05:28,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-29 00:05:28,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] Derived loop invariant: (((((((((((((((((((a24 == 1 && a15 <= 8) && a21 <= 6) && 286349 <= a12) || ((a24 == 1 && a12 <= 10) && 10 <= a21)) || (((a24 == 1 && a15 <= 8) && !(7 == a15)) && 49 + a12 <= 0)) || ((a21 <= 6 && a15 <= 7) && 49 + a12 <= 0)) || ((((82 <= a12 && a12 <= 73282) && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 8 <= a21) && a21 <= 8) && 18 < a12) && a12 <= 71)) || ((((a24 == 1 && a15 <= 8) && a12 <= 76) && 8 <= a21) && 18 < a12)) || (((a24 == 1 && 9 <= a15) && a12 <= 95433) && 95380 < a12)) || ((((a24 == 1 && a15 <= 7) && !(7 == a15)) && 18 < a12) && a12 <= 71)) || (((a24 == 1 && a15 <= 8) && a12 <= 10) && 0 < a12 + 43)) || (((82 <= a12 && a24 == 1) && 7 <= a21) && 9 <= a15)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((a24 == 1 && a15 <= 8) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 10 <= a21) && 95380 < a12)) || ((a24 == 1 && a21 <= 6) && a15 <= 7)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && 8 <= a21)) || ((a24 == 1 && a15 <= 7) && 8 <= a21)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0) RESULT: Ultimate proved your program to be correct! [2021-10-29 00:05:28,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3ff528-3e57-4858-8a04-f960c85f6ed2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...