./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label45.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_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/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_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label45.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/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_d6b66f69-78fa-4daf-a290-ae458a42fcb8/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 0a3986623018c70e6eab20909e61181eb3fd2fad76b9f685fe7d2107541e2f5e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:52:52,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:52:52,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:52:52,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:52:52,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:52:52,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:52:52,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:52:52,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:52:52,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:52:52,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:52:52,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:52:52,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:52:52,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:52:52,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:52:52,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:52:52,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:52:52,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:52:52,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:52:52,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:52:52,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:52:52,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:52:52,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:52:52,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:52:52,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:52:52,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:52:52,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:52:52,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:52:52,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:52:52,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:52:52,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:52:52,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:52:52,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:52:52,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:52:52,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:52:52,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:52:52,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:52:52,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:52:52,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:52:52,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:52:52,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:52:52,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:52:52,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:52:52,389 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:52:52,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:52:52,390 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:52:52,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:52:52,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:52:52,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:52:52,393 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:52:52,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:52:52,393 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:52:52,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:52:52,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:52:52,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:52:52,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:52:52,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:52:52,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:52:52,396 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:52:52,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:52:52,396 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:52:52,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:52:52,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:52:52,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:52:52,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:52:52,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:52:52,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:52:52,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:52:52,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:52:52,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:52:52,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:52:52,399 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:52:52,399 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:52:52,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:52:52,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:52:52,400 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_d6b66f69-78fa-4daf-a290-ae458a42fcb8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a3986623018c70e6eab20909e61181eb3fd2fad76b9f685fe7d2107541e2f5e [2021-10-28 23:52:52,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:52:52,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:52:52,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:52:52,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:52:52,693 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:52:52,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/eca-rers2012/Problem10_label45.c [2021-10-28 23:52:52,765 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/data/a3ba93c5d/9cae4250b40845c5a6ee04b4898923b7/FLAG5d80ae531 [2021-10-28 23:52:53,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:52:53,372 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/sv-benchmarks/c/eca-rers2012/Problem10_label45.c [2021-10-28 23:52:53,389 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/data/a3ba93c5d/9cae4250b40845c5a6ee04b4898923b7/FLAG5d80ae531 [2021-10-28 23:52:53,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/data/a3ba93c5d/9cae4250b40845c5a6ee04b4898923b7 [2021-10-28 23:52:53,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:52:53,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:52:53,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:52:53,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:52:53,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:52:53,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:52:53" (1/1) ... [2021-10-28 23:52:53,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc7b680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:53, skipping insertion in model container [2021-10-28 23:52:53,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:52:53" (1/1) ... [2021-10-28 23:52:53,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:52:53,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:52:53,956 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_d6b66f69-78fa-4daf-a290-ae458a42fcb8/sv-benchmarks/c/eca-rers2012/Problem10_label45.c[4437,4450] [2021-10-28 23:52:54,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:52:54,118 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:52:54,152 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_d6b66f69-78fa-4daf-a290-ae458a42fcb8/sv-benchmarks/c/eca-rers2012/Problem10_label45.c[4437,4450] [2021-10-28 23:52:54,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:52:54,321 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:52:54,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54 WrapperNode [2021-10-28 23:52:54,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:52:54,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:52:54,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:52:54,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:52:54,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:52:54,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:52:54,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:52:54,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:52:54,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:52:54,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:52:54,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:52:54,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:52:54,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (1/1) ... [2021-10-28 23:52:54,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:52:54,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:54,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:54,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:52:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:52:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:52:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:52:54,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:52:55,867 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:52:55,867 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 23:52:55,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:52:55 BoogieIcfgContainer [2021-10-28 23:52:55,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:52:55,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:52:55,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:52:55,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:52:55,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:52:53" (1/3) ... [2021-10-28 23:52:55,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38356188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:52:55, skipping insertion in model container [2021-10-28 23:52:55,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:54" (2/3) ... [2021-10-28 23:52:55,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38356188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:52:55, skipping insertion in model container [2021-10-28 23:52:55,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:52:55" (3/3) ... [2021-10-28 23:52:55,880 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2021-10-28 23:52:55,888 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:52:55,888 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:52:55,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:52:55,954 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 [2021-10-28 23:52:55,954 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:52:55,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 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) [2021-10-28 23:52:55,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:52:55,979 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:52:55,980 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, 1] [2021-10-28 23:52:55,980 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:52:55,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:55,986 INFO L85 PathProgramCache]: Analyzing trace with hash 323974986, now seen corresponding path program 1 times [2021-10-28 23:52:55,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:52:55,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379462257] [2021-10-28 23:52:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:55,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:52:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:52:56,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:52:56,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379462257] [2021-10-28 23:52:56,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379462257] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:52:56,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:52:56,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:52:56,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140459425] [2021-10-28 23:52:56,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:52:56,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:52:56,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:52:56,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:52:56,250 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 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) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:52:57,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:52:57,323 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2021-10-28 23:52:57,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:52:57,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2021-10-28 23:52:57,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:52:57,344 INFO L225 Difference]: With dead ends: 552 [2021-10-28 23:52:57,344 INFO L226 Difference]: Without dead ends: 282 [2021-10-28 23:52:57,352 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 [2021-10-28 23:52:57,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-28 23:52:57,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-28 23:52:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.5373665480427046) internal successors, (432), 281 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:52:57,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2021-10-28 23:52:57,428 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 38 [2021-10-28 23:52:57,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:52:57,429 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2021-10-28 23:52:57,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:52:57,430 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2021-10-28 23:52:57,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-10-28 23:52:57,438 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:52:57,439 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:52:57,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:52:57,439 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:52:57,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:57,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1778439955, now seen corresponding path program 1 times [2021-10-28 23:52:57,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:52:57,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522643499] [2021-10-28 23:52:57,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:57,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:52:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:57,717 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:52:57,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:52:57,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522643499] [2021-10-28 23:52:57,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522643499] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:52:57,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:52:57,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:52:57,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719778068] [2021-10-28 23:52:57,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:52:57,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:52:57,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:52:57,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:52:57,722 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:52:58,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:52:58,303 INFO L93 Difference]: Finished difference Result 701 states and 1076 transitions. [2021-10-28 23:52:58,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:52:58,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2021-10-28 23:52:58,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:52:58,307 INFO L225 Difference]: With dead ends: 701 [2021-10-28 23:52:58,307 INFO L226 Difference]: Without dead ends: 421 [2021-10-28 23:52:58,309 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 [2021-10-28 23:52:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-28 23:52:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-28 23:52:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4428571428571428) internal successors, (606), 420 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:52:58,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 606 transitions. [2021-10-28 23:52:58,329 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 606 transitions. Word has length 107 [2021-10-28 23:52:58,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:52:58,330 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 606 transitions. [2021-10-28 23:52:58,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:52:58,330 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 606 transitions. [2021-10-28 23:52:58,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-28 23:52:58,333 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:52:58,333 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:52:58,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:52:58,333 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:52:58,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:58,334 INFO L85 PathProgramCache]: Analyzing trace with hash -651687484, now seen corresponding path program 1 times [2021-10-28 23:52:58,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:52:58,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296847530] [2021-10-28 23:52:58,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:58,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:52:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:58,493 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:52:58,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:52:58,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296847530] [2021-10-28 23:52:58,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296847530] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:52:58,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:52:58,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:52:58,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133038014] [2021-10-28 23:52:58,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:52:58,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:52:58,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:52:58,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:52:58,497 INFO L87 Difference]: Start difference. First operand 421 states and 606 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:52:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:52:59,269 INFO L93 Difference]: Finished difference Result 998 states and 1484 transitions. [2021-10-28 23:52:59,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:52:59,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-10-28 23:52:59,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:52:59,274 INFO L225 Difference]: With dead ends: 998 [2021-10-28 23:52:59,275 INFO L226 Difference]: Without dead ends: 699 [2021-10-28 23:52:59,275 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 [2021-10-28 23:52:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-10-28 23:52:59,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2021-10-28 23:52:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.478510028653295) internal successors, (1032), 698 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:52:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1032 transitions. [2021-10-28 23:52:59,298 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1032 transitions. Word has length 113 [2021-10-28 23:52:59,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:52:59,299 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 1032 transitions. [2021-10-28 23:52:59,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:52:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1032 transitions. [2021-10-28 23:52:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-28 23:52:59,303 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:52:59,304 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:52:59,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:52:59,312 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:52:59,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:59,312 INFO L85 PathProgramCache]: Analyzing trace with hash 715593968, now seen corresponding path program 1 times [2021-10-28 23:52:59,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:52:59,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870345662] [2021-10-28 23:52:59,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:59,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:52:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:59,546 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:52:59,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:52:59,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870345662] [2021-10-28 23:52:59,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870345662] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:52:59,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:52:59,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:52:59,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149904214] [2021-10-28 23:52:59,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:52:59,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:52:59,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:52:59,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:52:59,559 INFO L87 Difference]: Start difference. First operand 699 states and 1032 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:00,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:00,184 INFO L93 Difference]: Finished difference Result 1410 states and 2076 transitions. [2021-10-28 23:53:00,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:53:00,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-10-28 23:53:00,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:00,196 INFO L225 Difference]: With dead ends: 1410 [2021-10-28 23:53:00,199 INFO L226 Difference]: Without dead ends: 713 [2021-10-28 23:53:00,201 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 [2021-10-28 23:53:00,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-10-28 23:53:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 699. [2021-10-28 23:53:00,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.4355300859598854) internal successors, (1002), 698 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:00,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1002 transitions. [2021-10-28 23:53:00,226 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1002 transitions. Word has length 132 [2021-10-28 23:53:00,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:00,226 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 1002 transitions. [2021-10-28 23:53:00,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:00,227 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1002 transitions. [2021-10-28 23:53:00,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-10-28 23:53:00,229 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:00,230 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:00,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:53:00,230 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:53:00,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:00,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1954640871, now seen corresponding path program 1 times [2021-10-28 23:53:00,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:00,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510556890] [2021-10-28 23:53:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:00,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-28 23:53:00,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:00,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510556890] [2021-10-28 23:53:00,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510556890] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:00,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:00,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:53:00,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068073832] [2021-10-28 23:53:00,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:53:00,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:00,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:53:00,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:53:00,367 INFO L87 Difference]: Start difference. First operand 699 states and 1002 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:00,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:00,858 INFO L93 Difference]: Finished difference Result 1535 states and 2286 transitions. [2021-10-28 23:53:00,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:53:00,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 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 173 [2021-10-28 23:53:00,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:00,864 INFO L225 Difference]: With dead ends: 1535 [2021-10-28 23:53:00,865 INFO L226 Difference]: Without dead ends: 977 [2021-10-28 23:53:00,866 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 [2021-10-28 23:53:00,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-28 23:53:00,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-10-28 23:53:00,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.3616803278688525) internal successors, (1329), 976 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1329 transitions. [2021-10-28 23:53:00,899 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1329 transitions. Word has length 173 [2021-10-28 23:53:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:00,901 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1329 transitions. [2021-10-28 23:53:00,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1329 transitions. [2021-10-28 23:53:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-10-28 23:53:00,905 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:00,905 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:00,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:53:00,906 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:53:00,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash 510441368, now seen corresponding path program 1 times [2021-10-28 23:53:00,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:00,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051965146] [2021-10-28 23:53:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:00,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:01,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:01,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051965146] [2021-10-28 23:53:01,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051965146] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:01,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:01,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:53:01,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512035215] [2021-10-28 23:53:01,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:53:01,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:01,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:53:01,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:53:01,013 INFO L87 Difference]: Start difference. First operand 977 states and 1329 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:01,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:01,506 INFO L93 Difference]: Finished difference Result 2369 states and 3269 transitions. [2021-10-28 23:53:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:53:01,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2021-10-28 23:53:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:01,516 INFO L225 Difference]: With dead ends: 2369 [2021-10-28 23:53:01,516 INFO L226 Difference]: Without dead ends: 1533 [2021-10-28 23:53:01,518 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 [2021-10-28 23:53:01,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-10-28 23:53:01,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1255. [2021-10-28 23:53:01,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.2974481658692185) internal successors, (1627), 1254 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) [2021-10-28 23:53:01,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1627 transitions. [2021-10-28 23:53:01,554 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1627 transitions. Word has length 179 [2021-10-28 23:53:01,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:01,554 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1627 transitions. [2021-10-28 23:53:01,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:01,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1627 transitions. [2021-10-28 23:53:01,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-10-28 23:53:01,558 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:01,558 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:01,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:53:01,559 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:53:01,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1793927449, now seen corresponding path program 1 times [2021-10-28 23:53:01,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:01,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634568620] [2021-10-28 23:53:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:01,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 35 proven. 36 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-28 23:53:01,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:01,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634568620] [2021-10-28 23:53:01,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634568620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:53:01,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369623766] [2021-10-28 23:53:01,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:01,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:53:01,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:01,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:53:01,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:53:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:01,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:53:01,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-28 23:53:02,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369623766] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:02,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:53:02,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 23:53:02,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857938938] [2021-10-28 23:53:02,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:53:02,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:02,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:53:02,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:53:02,435 INFO L87 Difference]: Start difference. First operand 1255 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:02,996 INFO L93 Difference]: Finished difference Result 3064 states and 4079 transitions. [2021-10-28 23:53:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:53:02,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2021-10-28 23:53:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:03,008 INFO L225 Difference]: With dead ends: 3064 [2021-10-28 23:53:03,009 INFO L226 Difference]: Without dead ends: 1950 [2021-10-28 23:53:03,010 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:53:03,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2021-10-28 23:53:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1672. [2021-10-28 23:53:03,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.24655894673848) internal successors, (2083), 1671 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:03,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2083 transitions. [2021-10-28 23:53:03,057 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2083 transitions. Word has length 212 [2021-10-28 23:53:03,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:03,057 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 2083 transitions. [2021-10-28 23:53:03,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:03,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2083 transitions. [2021-10-28 23:53:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-10-28 23:53:03,062 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:03,062 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:03,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:03,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-28 23:53:03,276 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:53:03,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1308011704, now seen corresponding path program 1 times [2021-10-28 23:53:03,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:03,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385899929] [2021-10-28 23:53:03,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:03,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:03,384 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:03,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:03,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385899929] [2021-10-28 23:53:03,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385899929] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:03,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:03,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:53:03,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685456505] [2021-10-28 23:53:03,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:53:03,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:03,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:53:03,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:53:03,387 INFO L87 Difference]: Start difference. First operand 1672 states and 2083 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:03,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:03,934 INFO L93 Difference]: Finished difference Result 3759 states and 4777 transitions. [2021-10-28 23:53:03,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:53:03,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 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 227 [2021-10-28 23:53:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:03,947 INFO L225 Difference]: With dead ends: 3759 [2021-10-28 23:53:03,947 INFO L226 Difference]: Without dead ends: 2228 [2021-10-28 23:53:03,952 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 [2021-10-28 23:53:03,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-10-28 23:53:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1811. [2021-10-28 23:53:03,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.181767955801105) internal successors, (2139), 1810 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:04,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2139 transitions. [2021-10-28 23:53:04,001 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2139 transitions. Word has length 227 [2021-10-28 23:53:04,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:04,002 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2139 transitions. [2021-10-28 23:53:04,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2139 transitions. [2021-10-28 23:53:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-10-28 23:53:04,007 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:04,007 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:04,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:53:04,008 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:53:04,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:04,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1226512020, now seen corresponding path program 1 times [2021-10-28 23:53:04,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:04,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930590065] [2021-10-28 23:53:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:04,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:04,230 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 228 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:04,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:04,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930590065] [2021-10-28 23:53:04,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930590065] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:53:04,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934006032] [2021-10-28 23:53:04,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:04,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:53:04,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:04,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:53:04,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:53:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:04,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:53:04,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 125 proven. 122 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-28 23:53:06,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934006032] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:53:06,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:53:06,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-28 23:53:06,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748671048] [2021-10-28 23:53:06,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:53:06,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:06,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:53:06,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:53:06,901 INFO L87 Difference]: Start difference. First operand 1811 states and 2139 transitions. Second operand has 10 states, 10 states have (on average 45.7) internal successors, (457), 9 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:10,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:10,567 INFO L93 Difference]: Finished difference Result 6880 states and 8067 transitions. [2021-10-28 23:53:10,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:53:10,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 45.7) internal successors, (457), 9 states have internal predecessors, (457), 0 states have call successors, (0), 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 261 [2021-10-28 23:53:10,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:10,596 INFO L225 Difference]: With dead ends: 6880 [2021-10-28 23:53:10,596 INFO L226 Difference]: Without dead ends: 5210 [2021-10-28 23:53:10,599 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:53:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2021-10-28 23:53:10,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 2784. [2021-10-28 23:53:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2783 states have (on average 1.1778656126482214) internal successors, (3278), 2783 states have internal predecessors, (3278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:10,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3278 transitions. [2021-10-28 23:53:10,694 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3278 transitions. Word has length 261 [2021-10-28 23:53:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:10,695 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 3278 transitions. [2021-10-28 23:53:10,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.7) internal successors, (457), 9 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:10,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3278 transitions. [2021-10-28 23:53:10,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-10-28 23:53:10,702 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:10,703 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:10,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:10,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:53:10,916 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:53:10,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:10,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1065311159, now seen corresponding path program 1 times [2021-10-28 23:53:10,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:10,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405063530] [2021-10-28 23:53:10,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:10,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 77 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:11,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:11,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405063530] [2021-10-28 23:53:11,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405063530] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:53:11,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695582455] [2021-10-28 23:53:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:11,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:53:11,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:11,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:53:11,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:53:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:11,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:53:11,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-28 23:53:12,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695582455] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:12,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:53:12,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-10-28 23:53:12,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267649786] [2021-10-28 23:53:12,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:53:12,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:12,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:53:12,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:53:12,305 INFO L87 Difference]: Start difference. First operand 2784 states and 3278 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:12,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:12,742 INFO L93 Difference]: Finished difference Result 5983 states and 7141 transitions. [2021-10-28 23:53:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:53:12,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2021-10-28 23:53:12,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:12,761 INFO L225 Difference]: With dead ends: 5983 [2021-10-28 23:53:12,761 INFO L226 Difference]: Without dead ends: 3340 [2021-10-28 23:53:12,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:53:12,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2021-10-28 23:53:12,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 2784. [2021-10-28 23:53:12,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2783 states have (on average 1.1505569529284945) internal successors, (3202), 2783 states have internal predecessors, (3202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:12,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3202 transitions. [2021-10-28 23:53:12,832 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3202 transitions. Word has length 286 [2021-10-28 23:53:12,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:12,833 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 3202 transitions. [2021-10-28 23:53:12,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3202 transitions. [2021-10-28 23:53:12,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-10-28 23:53:12,840 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:12,840 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:12,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:13,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 23:53:13,056 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:53:13,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:13,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1398974089, now seen corresponding path program 1 times [2021-10-28 23:53:13,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:13,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739618698] [2021-10-28 23:53:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:13,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-28 23:53:13,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:13,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739618698] [2021-10-28 23:53:13,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739618698] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:13,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:13,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:53:13,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665464546] [2021-10-28 23:53:13,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:53:13,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:13,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:53:13,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:53:13,200 INFO L87 Difference]: Start difference. First operand 2784 states and 3202 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:13,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:13,656 INFO L93 Difference]: Finished difference Result 5288 states and 6110 transitions. [2021-10-28 23:53:13,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:53:13,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 300 [2021-10-28 23:53:13,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:13,671 INFO L225 Difference]: With dead ends: 5288 [2021-10-28 23:53:13,671 INFO L226 Difference]: Without dead ends: 2645 [2021-10-28 23:53:13,674 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 [2021-10-28 23:53:13,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2021-10-28 23:53:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2367. [2021-10-28 23:53:13,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2366 states have (on average 1.0946745562130178) internal successors, (2590), 2366 states have internal predecessors, (2590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 2590 transitions. [2021-10-28 23:53:13,725 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 2590 transitions. Word has length 300 [2021-10-28 23:53:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:13,726 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 2590 transitions. [2021-10-28 23:53:13,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 2590 transitions. [2021-10-28 23:53:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-10-28 23:53:13,734 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:13,734 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:13,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 23:53:13,734 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:53:13,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:13,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1472236450, now seen corresponding path program 1 times [2021-10-28 23:53:13,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:13,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047005926] [2021-10-28 23:53:13,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:13,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:13,863 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-10-28 23:53:13,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:13,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047005926] [2021-10-28 23:53:13,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047005926] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:13,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:13,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:53:13,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821743072] [2021-10-28 23:53:13,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:53:13,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:13,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:53:13,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:53:13,866 INFO L87 Difference]: Start difference. First operand 2367 states and 2590 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:14,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:14,339 INFO L93 Difference]: Finished difference Result 5147 states and 5640 transitions. [2021-10-28 23:53:14,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:53:14,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 310 [2021-10-28 23:53:14,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:14,345 INFO L225 Difference]: With dead ends: 5147 [2021-10-28 23:53:14,345 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:53:14,353 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 [2021-10-28 23:53:14,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:53:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:53:14,354 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) [2021-10-28 23:53:14,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:53:14,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 310 [2021-10-28 23:53:14,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:14,355 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:53:14,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:53:14,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:53:14,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:53:14,358 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:53:14,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 23:53:14,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:53:14,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:53:14,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:53:14,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:53:14,864 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-28 23:53:14,865 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-28 23:53:14,865 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-28 23:53:14,865 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-28 23:53:14,865 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-28 23:53:14,865 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-28 23:53:14,865 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,865 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,865 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,866 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,866 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,866 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,866 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-28 23:53:14,866 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-28 23:53:14,866 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-28 23:53:14,866 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-28 23:53:14,866 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-28 23:53:14,866 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,867 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-28 23:53:14,868 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-28 23:53:14,869 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-28 23:53:14,869 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-28 23:53:14,869 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-28 23:53:14,869 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-28 23:53:14,869 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-28 23:53:14,869 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,869 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,869 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,869 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-28 23:53:14,870 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,871 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-28 23:53:14,872 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-28 23:53:14,873 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-28 23:53:14,873 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-28 23:53:14,873 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,874 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,874 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,874 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,874 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,874 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-28 23:53:14,874 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-28 23:53:14,874 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-28 23:53:14,874 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-28 23:53:14,875 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-28 23:53:14,875 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-28 23:53:14,875 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-28 23:53:14,875 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-28 23:53:14,875 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-28 23:53:14,875 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-28 23:53:14,875 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-28 23:53:14,875 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-28 23:53:14,875 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-28 23:53:14,876 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-28 23:53:14,877 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-28 23:53:14,877 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-28 23:53:14,877 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-28 23:53:14,877 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse3 (< 0 (+ ~a1~0 13))) (.cse4 (= ~a10~0 1)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2)) (and .cse1 (<= ~a19~0 7) .cse2 .cse3) (and .cse0 (<= 4 ~a10~0)) (<= ~a10~0 0) (and .cse0 (= ~a10~0 3) .cse1 .cse2 .cse3) (and (= ~a19~0 9) .cse1 .cse2) (and .cse4 (<= 9 ~a19~0)) (and .cse4 (< 331498 ~a1~0) .cse1 .cse2))) [2021-10-28 23:53:14,877 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-28 23:53:14,877 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-28 23:53:14,877 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-28 23:53:14,878 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-28 23:53:14,879 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-28 23:53:14,879 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-28 23:53:14,879 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-28 23:53:14,879 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-28 23:53:14,879 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-28 23:53:14,879 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-28 23:53:14,879 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-28 23:53:14,879 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-28 23:53:14,879 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-28 23:53:14,880 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-28 23:53:14,880 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:53:14,880 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,880 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,880 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,880 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,880 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,880 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-28 23:53:14,880 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-28 23:53:14,881 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-28 23:53:14,881 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-28 23:53:14,881 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-28 23:53:14,881 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-28 23:53:14,881 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-28 23:53:14,881 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-28 23:53:14,881 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-28 23:53:14,881 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,881 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-28 23:53:14,882 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-28 23:53:14,883 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-28 23:53:14,883 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-28 23:53:14,883 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-28 23:53:14,883 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-28 23:53:14,883 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-28 23:53:14,883 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-28 23:53:14,883 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse3 (< 0 (+ ~a1~0 13))) (.cse4 (= ~a10~0 1)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2)) (and .cse1 (<= ~a19~0 7) .cse2 .cse3) (and .cse0 (<= 4 ~a10~0)) (<= ~a10~0 0) (and .cse0 (= ~a10~0 3) .cse1 .cse2 .cse3) (and (= ~a19~0 9) .cse1 .cse2) (and .cse4 (<= 9 ~a19~0)) (and .cse4 (< 331498 ~a1~0) .cse1 .cse2))) [2021-10-28 23:53:14,883 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-28 23:53:14,884 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,884 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,884 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,884 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,884 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-28 23:53:14,884 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,884 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,884 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-28 23:53:14,884 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-28 23:53:14,885 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-28 23:53:14,885 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-28 23:53:14,885 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-28 23:53:14,885 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-28 23:53:14,885 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-28 23:53:14,885 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-28 23:53:14,886 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-28 23:53:14,886 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:53:14,886 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 128) no Hoare annotation was computed. [2021-10-28 23:53:14,886 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-28 23:53:14,886 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-28 23:53:14,886 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-28 23:53:14,886 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-28 23:53:14,886 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-28 23:53:14,887 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-28 23:53:14,888 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-28 23:53:14,888 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-28 23:53:14,888 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-28 23:53:14,888 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-28 23:53:14,893 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:14,894 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:53:14,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:53:14 BoogieIcfgContainer [2021-10-28 23:53:14,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:53:14,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:53:14,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:53:14,924 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:53:14,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:52:55" (3/4) ... [2021-10-28 23:53:14,927 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:53:14,955 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 23:53:14,957 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:53:14,958 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:53:14,959 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:53:15,105 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:53:15,105 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:53:15,107 INFO L168 Benchmark]: Toolchain (without parser) took 21475.72 ms. Allocated memory was 117.4 MB in the beginning and 281.0 MB in the end (delta: 163.6 MB). Free memory was 86.1 MB in the beginning and 145.0 MB in the end (delta: -58.9 MB). Peak memory consumption was 103.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:15,108 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 117.4 MB. Free memory was 70.6 MB in the beginning and 70.5 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:53:15,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.30 ms. Allocated memory is still 117.4 MB. Free memory was 85.8 MB in the beginning and 75.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:15,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.72 ms. Allocated memory is still 117.4 MB. Free memory was 75.5 MB in the beginning and 67.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:15,109 INFO L168 Benchmark]: Boogie Preprocessor took 65.59 ms. Allocated memory is still 117.4 MB. Free memory was 67.5 MB in the beginning and 62.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:15,109 INFO L168 Benchmark]: RCFGBuilder took 1369.59 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 62.9 MB in the beginning and 63.0 MB in the end (delta: -156.3 kB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:15,110 INFO L168 Benchmark]: TraceAbstraction took 19051.56 ms. Allocated memory was 142.6 MB in the beginning and 281.0 MB in the end (delta: 138.4 MB). Free memory was 62.0 MB in the beginning and 159.7 MB in the end (delta: -97.7 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:15,110 INFO L168 Benchmark]: Witness Printer took 181.49 ms. Allocated memory is still 281.0 MB. Free memory was 159.7 MB in the beginning and 145.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:15,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 117.4 MB. Free memory was 70.6 MB in the beginning and 70.5 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 695.30 ms. Allocated memory is still 117.4 MB. Free memory was 85.8 MB in the beginning and 75.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.72 ms. Allocated memory is still 117.4 MB. Free memory was 75.5 MB in the beginning and 67.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.59 ms. Allocated memory is still 117.4 MB. Free memory was 67.5 MB in the beginning and 62.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1369.59 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 62.9 MB in the beginning and 63.0 MB in the end (delta: -156.3 kB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19051.56 ms. Allocated memory was 142.6 MB in the beginning and 281.0 MB in the end (delta: 138.4 MB). Free memory was 62.0 MB in the beginning and 159.7 MB in the end (delta: -97.7 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. * Witness Printer took 181.49 ms. Allocated memory is still 281.0 MB. Free memory was 159.7 MB in the beginning and 145.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * 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: 128]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.9s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1423 SDtfs, 3088 SDslu, 119 SDs, 0 SdLazy, 7590 SolverSat, 1470 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 806 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2784occurred in iteration=9, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 4247 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 163 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4825 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 510 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 3097 NumberOfCodeBlocks, 3097 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3082 ConstructedInterpolants, 0 QuantifiedInterpolants, 14895 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1146 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 2110/2456 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: 592]: Loop Invariant Derived loop invariant: (((((((a19 <= 9 && a10 == 2) || (((14 == a4 && a19 <= 7) && a12 == 0) && 0 < a1 + 13)) || (a19 <= 9 && 4 <= a10)) || a10 <= 0) || ((((a19 <= 9 && a10 == 3) && 14 == a4) && a12 == 0) && 0 < a1 + 13)) || ((a19 == 9 && 14 == a4) && a12 == 0)) || (a10 == 1 && 9 <= a19)) || (((a10 == 1 && 331498 < a1) && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((a19 <= 9 && a10 == 2) || (((14 == a4 && a19 <= 7) && a12 == 0) && 0 < a1 + 13)) || (a19 <= 9 && 4 <= a10)) || a10 <= 0) || ((((a19 <= 9 && a10 == 3) && 14 == a4) && a12 == 0) && 0 < a1 + 13)) || ((a19 == 9 && 14 == a4) && a12 == 0)) || (a10 == 1 && 9 <= a19)) || (((a10 == 1 && 331498 < a1) && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:53:15,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b66f69-78fa-4daf-a290-ae458a42fcb8/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...