./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX --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 eca4fa24c7d17d702b457b7d1d0ed6513492942e324299a6e335f63078cc8b55 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:41:16,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:41:16,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:41:16,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:41:16,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:41:16,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:41:16,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:41:16,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:41:16,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:41:16,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:41:16,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:41:16,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:41:16,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:41:16,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:41:16,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:41:16,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:41:16,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:41:16,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:41:16,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:41:16,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:41:16,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:41:16,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:41:16,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:41:16,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:41:16,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:41:16,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:41:16,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:41:16,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:41:16,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:41:17,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:41:17,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:41:17,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:41:17,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:41:17,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:41:17,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:41:17,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:41:17,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:41:17,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:41:17,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:41:17,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:41:17,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:41:17,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 10:41:17,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:41:17,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:41:17,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:41:17,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:41:17,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:41:17,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:41:17,062 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:41:17,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:41:17,063 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:41:17,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:41:17,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:41:17,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:41:17,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:41:17,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:41:17,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:41:17,065 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:41:17,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:41:17,065 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:41:17,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:41:17,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:41:17,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:41:17,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:41:17,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:41:17,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:41:17,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:41:17,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:41:17,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:41:17,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:41:17,068 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:41:17,068 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:41:17,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:41:17,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:41:17,069 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_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eca4fa24c7d17d702b457b7d1d0ed6513492942e324299a6e335f63078cc8b55 [2021-11-09 10:41:17,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:41:17,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:41:17,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:41:17,467 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:41:17,468 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:41:17,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2021-11-09 10:41:17,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/data/185eb67f3/764418be68f44fb39c34c0c257fbc956/FLAG358514a11 [2021-11-09 10:41:18,175 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:41:18,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2021-11-09 10:41:18,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/data/185eb67f3/764418be68f44fb39c34c0c257fbc956/FLAG358514a11 [2021-11-09 10:41:18,396 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/data/185eb67f3/764418be68f44fb39c34c0c257fbc956 [2021-11-09 10:41:18,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:41:18,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:41:18,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:41:18,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:41:18,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:41:18,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:41:18" (1/1) ... [2021-11-09 10:41:18,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350b40e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:18, skipping insertion in model container [2021-11-09 10:41:18,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:41:18" (1/1) ... [2021-11-09 10:41:18,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:41:18,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:41:18,799 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_376af102-3640-4345-9816-7ec8d9b86b6e/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2021-11-09 10:41:19,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:41:19,111 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:41:19,157 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_376af102-3640-4345-9816-7ec8d9b86b6e/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2021-11-09 10:41:19,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:41:19,307 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:41:19,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19 WrapperNode [2021-11-09 10:41:19,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:41:19,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:41:19,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:41:19,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:41:19,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:41:19,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:41:19,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:41:19,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:41:19,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:41:19,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:41:19,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:41:19,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:41:19,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (1/1) ... [2021-11-09 10:41:19,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:41:19,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:19,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:41:19,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:41:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:41:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:41:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:41:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:41:21,566 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:41:21,566 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-09 10:41:21,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:41:21 BoogieIcfgContainer [2021-11-09 10:41:21,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:41:21,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:41:21,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:41:21,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:41:21,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:41:18" (1/3) ... [2021-11-09 10:41:21,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb7e72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:41:21, skipping insertion in model container [2021-11-09 10:41:21,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:19" (2/3) ... [2021-11-09 10:41:21,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb7e72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:41:21, skipping insertion in model container [2021-11-09 10:41:21,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:41:21" (3/3) ... [2021-11-09 10:41:21,580 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2021-11-09 10:41:21,586 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:41:21,587 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 10:41:21,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:41:21,655 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 10:41:21,655 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 10:41:21,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-09 10:41:21,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:21,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:21,692 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:21,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:21,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2021-11-09 10:41:21,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:21,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4219079] [2021-11-09 10:41:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:21,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:41:22,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:22,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4219079] [2021-11-09 10:41:22,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4219079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:22,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:22,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 10:41:22,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114038713] [2021-11-09 10:41:22,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:22,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:22,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:22,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:41:22,187 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:23,507 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-11-09 10:41:23,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:23,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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 56 [2021-11-09 10:41:23,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:23,527 INFO L225 Difference]: With dead ends: 669 [2021-11-09 10:41:23,527 INFO L226 Difference]: Without dead ends: 360 [2021-11-09 10:41:23,532 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 [2021-11-09 10:41:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-09 10:41:23,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-11-09 10:41:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2021-11-09 10:41:23,601 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 56 [2021-11-09 10:41:23,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:23,602 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2021-11-09 10:41:23,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2021-11-09 10:41:23,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-09 10:41:23,613 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:23,614 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:23,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 10:41:23,615 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:23,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash 448247055, now seen corresponding path program 1 times [2021-11-09 10:41:23,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:23,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129262954] [2021-11-09 10:41:23,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:23,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:23,878 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:41:23,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:23,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129262954] [2021-11-09 10:41:23,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129262954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:23,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:23,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 10:41:23,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149797015] [2021-11-09 10:41:23,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:23,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:23,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:23,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:41:23,887 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:24,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:24,777 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2021-11-09 10:41:24,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:24,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 131 [2021-11-09 10:41:24,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:24,784 INFO L225 Difference]: With dead ends: 1074 [2021-11-09 10:41:24,784 INFO L226 Difference]: Without dead ends: 716 [2021-11-09 10:41:24,787 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 [2021-11-09 10:41:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-11-09 10:41:24,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-11-09 10:41:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:24,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-11-09 10:41:24,845 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 131 [2021-11-09 10:41:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:24,846 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-11-09 10:41:24,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:24,847 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-11-09 10:41:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-09 10:41:24,851 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:24,852 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:24,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 10:41:24,852 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:24,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:24,853 INFO L85 PathProgramCache]: Analyzing trace with hash -596921339, now seen corresponding path program 1 times [2021-11-09 10:41:24,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:24,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186643369] [2021-11-09 10:41:24,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:24,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:41:25,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:25,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186643369] [2021-11-09 10:41:25,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186643369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:25,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:25,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:41:25,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732549789] [2021-11-09 10:41:25,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:41:25,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:25,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:41:25,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:41:25,013 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:26,295 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2021-11-09 10:41:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:41:26,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 135 [2021-11-09 10:41:26,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:26,303 INFO L225 Difference]: With dead ends: 1964 [2021-11-09 10:41:26,303 INFO L226 Difference]: Without dead ends: 1250 [2021-11-09 10:41:26,304 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 [2021-11-09 10:41:26,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-11-09 10:41:26,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-11-09 10:41:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2361889511609288) internal successors, (1544), 1249 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2021-11-09 10:41:26,344 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 135 [2021-11-09 10:41:26,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:26,345 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2021-11-09 10:41:26,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2021-11-09 10:41:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-09 10:41:26,352 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:26,352 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, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:26,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 10:41:26,352 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:26,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:26,353 INFO L85 PathProgramCache]: Analyzing trace with hash -452523719, now seen corresponding path program 1 times [2021-11-09 10:41:26,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:26,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737642646] [2021-11-09 10:41:26,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:26,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:26,558 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-09 10:41:26,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:26,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737642646] [2021-11-09 10:41:26,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737642646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:26,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:26,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:41:26,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136801808] [2021-11-09 10:41:26,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:41:26,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:26,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:41:26,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:41:26,563 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:27,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:27,475 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2021-11-09 10:41:27,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:41:27,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2021-11-09 10:41:27,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:27,487 INFO L225 Difference]: With dead ends: 2705 [2021-11-09 10:41:27,487 INFO L226 Difference]: Without dead ends: 1606 [2021-11-09 10:41:27,490 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 [2021-11-09 10:41:27,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-11-09 10:41:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2021-11-09 10:41:27,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1221183800623054) internal successors, (1801), 1605 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:27,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2021-11-09 10:41:27,540 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 215 [2021-11-09 10:41:27,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:27,541 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2021-11-09 10:41:27,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:27,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2021-11-09 10:41:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-11-09 10:41:27,549 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:27,549 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, 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, 2, 2, 2, 2, 2, 2, 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] [2021-11-09 10:41:27,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 10:41:27,550 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:27,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:27,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1042976344, now seen corresponding path program 1 times [2021-11-09 10:41:27,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:27,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948956718] [2021-11-09 10:41:27,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:27,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:27,824 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 209 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-09 10:41:27,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:27,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948956718] [2021-11-09 10:41:27,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948956718] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:41:27,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278881647] [2021-11-09 10:41:27,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:27,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:27,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:27,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:27,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 10:41:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:28,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:41:28,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:29,250 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-09 10:41:29,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278881647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:29,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:41:29,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-09 10:41:29,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679570460] [2021-11-09 10:41:29,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:29,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:29,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:29,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:29,254 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:29,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:29,957 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2021-11-09 10:41:29,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:29,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 342 [2021-11-09 10:41:29,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:29,973 INFO L225 Difference]: With dead ends: 3388 [2021-11-09 10:41:29,973 INFO L226 Difference]: Without dead ends: 1962 [2021-11-09 10:41:29,976 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:29,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-11-09 10:41:30,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-11-09 10:41:30,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1318003365114975) internal successors, (2018), 1783 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:30,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2021-11-09 10:41:30,079 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 342 [2021-11-09 10:41:30,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:30,081 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2021-11-09 10:41:30,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:30,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2021-11-09 10:41:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-09 10:41:30,089 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:30,089 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, 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, 2, 2, 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] [2021-11-09 10:41:30,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:30,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:30,313 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:30,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:30,314 INFO L85 PathProgramCache]: Analyzing trace with hash 246905886, now seen corresponding path program 1 times [2021-11-09 10:41:30,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:30,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132854885] [2021-11-09 10:41:30,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:30,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-09 10:41:30,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:30,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132854885] [2021-11-09 10:41:30,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132854885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:30,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:30,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:41:30,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971106250] [2021-11-09 10:41:30,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:30,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:30,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:30,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:41:30,493 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:31,296 INFO L93 Difference]: Finished difference Result 3744 states and 4282 transitions. [2021-11-09 10:41:31,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:31,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 346 [2021-11-09 10:41:31,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:31,311 INFO L225 Difference]: With dead ends: 3744 [2021-11-09 10:41:31,312 INFO L226 Difference]: Without dead ends: 2140 [2021-11-09 10:41:31,318 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 [2021-11-09 10:41:31,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-11-09 10:41:31,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-11-09 10:41:31,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1280972417017299) internal successors, (2413), 2139 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:31,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2413 transitions. [2021-11-09 10:41:31,385 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2413 transitions. Word has length 346 [2021-11-09 10:41:31,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:31,386 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2413 transitions. [2021-11-09 10:41:31,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:31,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2413 transitions. [2021-11-09 10:41:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-11-09 10:41:31,395 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:31,395 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2021-11-09 10:41:31,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 10:41:31,396 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:31,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:31,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1148447004, now seen corresponding path program 1 times [2021-11-09 10:41:31,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:31,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004434144] [2021-11-09 10:41:31,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:31,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:31,632 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-09 10:41:31,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:31,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004434144] [2021-11-09 10:41:31,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004434144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:31,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:31,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:41:31,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559861082] [2021-11-09 10:41:31,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:31,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:31,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:31,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:41:31,637 INFO L87 Difference]: Start difference. First operand 2140 states and 2413 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:32,406 INFO L93 Difference]: Finished difference Result 4634 states and 5295 transitions. [2021-11-09 10:41:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:32,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 373 [2021-11-09 10:41:32,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:32,425 INFO L225 Difference]: With dead ends: 4634 [2021-11-09 10:41:32,426 INFO L226 Difference]: Without dead ends: 2674 [2021-11-09 10:41:32,429 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 [2021-11-09 10:41:32,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-11-09 10:41:32,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2021-11-09 10:41:32,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1208380097268986) internal successors, (2996), 2673 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:32,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2996 transitions. [2021-11-09 10:41:32,513 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2996 transitions. Word has length 373 [2021-11-09 10:41:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:32,515 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2996 transitions. [2021-11-09 10:41:32,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:32,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2996 transitions. [2021-11-09 10:41:32,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-11-09 10:41:32,525 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:32,525 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:32,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 10:41:32,526 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:32,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:32,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1347609353, now seen corresponding path program 1 times [2021-11-09 10:41:32,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:32,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884165200] [2021-11-09 10:41:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:32,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:32,846 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-09 10:41:32,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:32,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884165200] [2021-11-09 10:41:32,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884165200] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:41:32,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892905906] [2021-11-09 10:41:32,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:32,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:32,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:32,850 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:32,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 10:41:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:33,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:41:33,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:34,060 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-09 10:41:34,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892905906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:34,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:41:34,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-09 10:41:34,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405587946] [2021-11-09 10:41:34,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:34,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:34,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:34,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:41:34,064 INFO L87 Difference]: Start difference. First operand 2674 states and 2996 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:34,762 INFO L93 Difference]: Finished difference Result 6236 states and 7081 transitions. [2021-11-09 10:41:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:34,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 380 [2021-11-09 10:41:34,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:34,788 INFO L225 Difference]: With dead ends: 6236 [2021-11-09 10:41:34,788 INFO L226 Difference]: Without dead ends: 3742 [2021-11-09 10:41:34,792 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:41:34,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-11-09 10:41:34,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2021-11-09 10:41:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.1242983159583) internal successors, (4206), 3741 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:34,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4206 transitions. [2021-11-09 10:41:34,935 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4206 transitions. Word has length 380 [2021-11-09 10:41:34,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:34,936 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4206 transitions. [2021-11-09 10:41:34,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:34,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4206 transitions. [2021-11-09 10:41:34,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-11-09 10:41:34,951 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:34,953 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:35,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:35,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-09 10:41:35,178 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:35,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1274381579, now seen corresponding path program 1 times [2021-11-09 10:41:35,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:35,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694130030] [2021-11-09 10:41:35,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:35,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:35,431 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-09 10:41:35,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:35,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694130030] [2021-11-09 10:41:35,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694130030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:35,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:35,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:41:35,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228236518] [2021-11-09 10:41:35,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:41:35,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:35,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:41:35,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:41:35,436 INFO L87 Difference]: Start difference. First operand 3742 states and 4206 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:36,309 INFO L93 Difference]: Finished difference Result 7540 states and 8485 transitions. [2021-11-09 10:41:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:41:36,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 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 455 [2021-11-09 10:41:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:36,334 INFO L225 Difference]: With dead ends: 7540 [2021-11-09 10:41:36,334 INFO L226 Difference]: Without dead ends: 3920 [2021-11-09 10:41:36,339 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 [2021-11-09 10:41:36,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-11-09 10:41:36,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2021-11-09 10:41:36,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.083132852178562) internal successors, (4052), 3741 states have internal predecessors, (4052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:36,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4052 transitions. [2021-11-09 10:41:36,479 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4052 transitions. Word has length 455 [2021-11-09 10:41:36,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:36,480 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4052 transitions. [2021-11-09 10:41:36,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:36,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4052 transitions. [2021-11-09 10:41:36,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-11-09 10:41:36,486 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:36,487 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:36,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 10:41:36,488 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:36,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:36,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1801199018, now seen corresponding path program 1 times [2021-11-09 10:41:36,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:36,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091878725] [2021-11-09 10:41:36,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:36,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:36,817 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 520 proven. 11 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-09 10:41:36,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:36,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091878725] [2021-11-09 10:41:36,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091878725] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:41:36,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925763320] [2021-11-09 10:41:36,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:36,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:36,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:36,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:36,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 10:41:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:37,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:41:37,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-09 10:41:38,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925763320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:38,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:41:38,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-09 10:41:38,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987330089] [2021-11-09 10:41:38,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:38,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:38,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:38,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:38,535 INFO L87 Difference]: Start difference. First operand 3742 states and 4052 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:39,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:39,107 INFO L93 Difference]: Finished difference Result 7304 states and 7923 transitions. [2021-11-09 10:41:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:39,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 481 [2021-11-09 10:41:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:39,130 INFO L225 Difference]: With dead ends: 7304 [2021-11-09 10:41:39,130 INFO L226 Difference]: Without dead ends: 3742 [2021-11-09 10:41:39,136 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-11-09 10:41:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2021-11-09 10:41:39,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0737770649558942) internal successors, (4017), 3741 states have internal predecessors, (4017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:39,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4017 transitions. [2021-11-09 10:41:39,245 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4017 transitions. Word has length 481 [2021-11-09 10:41:39,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:39,246 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4017 transitions. [2021-11-09 10:41:39,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:39,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4017 transitions. [2021-11-09 10:41:39,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2021-11-09 10:41:39,253 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:39,254 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-11-09 10:41:39,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:39,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:39,470 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:39,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:39,471 INFO L85 PathProgramCache]: Analyzing trace with hash 120362576, now seen corresponding path program 1 times [2021-11-09 10:41:39,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:39,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256896414] [2021-11-09 10:41:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:39,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-11-09 10:41:39,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:39,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256896414] [2021-11-09 10:41:39,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256896414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:39,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:39,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:41:39,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550125358] [2021-11-09 10:41:39,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:39,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:39,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:39,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:41:39,785 INFO L87 Difference]: Start difference. First operand 3742 states and 4017 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:40,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:40,408 INFO L93 Difference]: Finished difference Result 7660 states and 8277 transitions. [2021-11-09 10:41:40,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:40,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 535 [2021-11-09 10:41:40,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:40,432 INFO L225 Difference]: With dead ends: 7660 [2021-11-09 10:41:40,432 INFO L226 Difference]: Without dead ends: 4098 [2021-11-09 10:41:40,437 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 [2021-11-09 10:41:40,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-11-09 10:41:40,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2021-11-09 10:41:40,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0785940932389553) internal successors, (4419), 4097 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:40,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4419 transitions. [2021-11-09 10:41:40,527 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4419 transitions. Word has length 535 [2021-11-09 10:41:40,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:40,528 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4419 transitions. [2021-11-09 10:41:40,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:40,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4419 transitions. [2021-11-09 10:41:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2021-11-09 10:41:40,537 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:40,538 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:40,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 10:41:40,539 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:40,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:40,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1311829144, now seen corresponding path program 1 times [2021-11-09 10:41:40,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:40,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877932316] [2021-11-09 10:41:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:40,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:40,912 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 463 proven. 68 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-09 10:41:40,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:40,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877932316] [2021-11-09 10:41:40,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877932316] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:41:40,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487018028] [2021-11-09 10:41:40,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:40,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:40,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:40,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:40,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 10:41:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:41,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:41:41,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:43,500 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2021-11-09 10:41:43,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487018028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:43,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:41:43,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-09 10:41:43,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361096169] [2021-11-09 10:41:43,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:43,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:43,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:43,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:43,508 INFO L87 Difference]: Start difference. First operand 4098 states and 4419 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 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) [2021-11-09 10:41:44,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:44,049 INFO L93 Difference]: Finished difference Result 5168 states and 5590 transitions. [2021-11-09 10:41:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:44,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 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 546 [2021-11-09 10:41:44,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:44,078 INFO L225 Difference]: With dead ends: 5168 [2021-11-09 10:41:44,078 INFO L226 Difference]: Without dead ends: 5166 [2021-11-09 10:41:44,080 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:44,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-11-09 10:41:44,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4276. [2021-11-09 10:41:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions. [2021-11-09 10:41:44,174 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 546 [2021-11-09 10:41:44,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:44,175 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions. [2021-11-09 10:41:44,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 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) [2021-11-09 10:41:44,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions. [2021-11-09 10:41:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2021-11-09 10:41:44,185 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:44,186 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:44,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:44,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:44,403 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:44,403 INFO L85 PathProgramCache]: Analyzing trace with hash 538602375, now seen corresponding path program 1 times [2021-11-09 10:41:44,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:44,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398750159] [2021-11-09 10:41:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:44,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 943 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2021-11-09 10:41:44,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:44,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398750159] [2021-11-09 10:41:44,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398750159] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:41:44,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068962200] [2021-11-09 10:41:44,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:44,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:44,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:44,770 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:44,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 10:41:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:45,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:41:45,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:47,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2021-11-09 10:41:47,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068962200] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:47,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:41:47,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-09 10:41:47,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152312281] [2021-11-09 10:41:47,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:47,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:47,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:47,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:47,038 INFO L87 Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:47,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:47,615 INFO L93 Difference]: Finished difference Result 5702 states and 6165 transitions. [2021-11-09 10:41:47,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:47,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 588 [2021-11-09 10:41:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:47,646 INFO L225 Difference]: With dead ends: 5702 [2021-11-09 10:41:47,647 INFO L226 Difference]: Without dead ends: 5700 [2021-11-09 10:41:47,648 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-11-09 10:41:47,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4276. [2021-11-09 10:41:47,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:47,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions. [2021-11-09 10:41:47,780 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 588 [2021-11-09 10:41:47,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:47,781 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions. [2021-11-09 10:41:47,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:47,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions. [2021-11-09 10:41:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-11-09 10:41:47,792 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:47,793 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2021-11-09 10:41:47,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:48,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-09 10:41:48,014 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1811126405, now seen corresponding path program 1 times [2021-11-09 10:41:48,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:48,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910956138] [2021-11-09 10:41:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:48,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:48,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2021-11-09 10:41:48,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:48,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910956138] [2021-11-09 10:41:48,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910956138] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:41:48,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720781128] [2021-11-09 10:41:48,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:48,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:48,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:48,352 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:48,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 10:41:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:49,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:41:49,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:50,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2021-11-09 10:41:50,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720781128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:50,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:41:50,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-09 10:41:50,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428812546] [2021-11-09 10:41:50,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:41:50,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:50,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:41:50,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:50,504 INFO L87 Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:50,929 INFO L93 Difference]: Finished difference Result 5524 states and 5971 transitions. [2021-11-09 10:41:50,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:41:50,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 619 [2021-11-09 10:41:50,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:50,939 INFO L225 Difference]: With dead ends: 5524 [2021-11-09 10:41:50,939 INFO L226 Difference]: Without dead ends: 5522 [2021-11-09 10:41:50,941 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:41:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-11-09 10:41:51,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4276. [2021-11-09 10:41:51,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions. [2021-11-09 10:41:51,019 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 619 [2021-11-09 10:41:51,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:51,020 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions. [2021-11-09 10:41:51,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:51,021 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions. [2021-11-09 10:41:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2021-11-09 10:41:51,030 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:51,030 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2021-11-09 10:41:51,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:51,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-09 10:41:51,250 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:51,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:51,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1748481757, now seen corresponding path program 1 times [2021-11-09 10:41:51,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:51,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096925762] [2021-11-09 10:41:51,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:51,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2021-11-09 10:41:51,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:51,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096925762] [2021-11-09 10:41:51,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096925762] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:41:51,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452828396] [2021-11-09 10:41:51,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:51,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:51,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:51,570 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:51,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 10:41:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:52,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 10:41:52,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:57,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 955 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2021-11-09 10:41:57,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452828396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:57,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:41:57,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-11-09 10:41:57,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286352961] [2021-11-09 10:41:57,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:41:57,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:57,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:41:57,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-09 10:41:57,029 INFO L87 Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand has 5 states, 5 states have (on average 73.4) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:57,884 INFO L93 Difference]: Finished difference Result 8906 states and 9634 transitions. [2021-11-09 10:41:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:41:57,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 4 states have internal predecessors, (367), 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 628 [2021-11-09 10:41:57,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:57,895 INFO L225 Difference]: With dead ends: 8906 [2021-11-09 10:41:57,896 INFO L226 Difference]: Without dead ends: 4810 [2021-11-09 10:41:57,901 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-09 10:41:57,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-11-09 10:41:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3920. [2021-11-09 10:41:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.073488134728247) internal successors, (4207), 3919 states have internal predecessors, (4207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:58,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4207 transitions. [2021-11-09 10:41:58,008 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4207 transitions. Word has length 628 [2021-11-09 10:41:58,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:58,009 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4207 transitions. [2021-11-09 10:41:58,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:58,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4207 transitions. [2021-11-09 10:41:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 933 [2021-11-09 10:41:58,026 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:58,027 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:58,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:58,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-09 10:41:58,242 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:41:58,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:58,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1439738851, now seen corresponding path program 1 times [2021-11-09 10:41:58,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:58,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51918020] [2021-11-09 10:41:58,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:58,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:58,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 1906 proven. 155 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2021-11-09 10:41:58,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:58,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51918020] [2021-11-09 10:41:58,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51918020] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:41:58,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643920785] [2021-11-09 10:41:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:58,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:58,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:58,650 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:58,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 10:42:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:42:00,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:42:00,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:42:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 1906 proven. 155 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2021-11-09 10:42:02,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643920785] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:42:02,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:42:02,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-09 10:42:02,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419408100] [2021-11-09 10:42:02,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:42:02,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:42:02,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:42:02,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:42:02,359 INFO L87 Difference]: Start difference. First operand 3920 states and 4207 transitions. Second operand has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:03,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:42:03,221 INFO L93 Difference]: Finished difference Result 9262 states and 9933 transitions. [2021-11-09 10:42:03,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:42:03,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 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 932 [2021-11-09 10:42:03,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:42:03,232 INFO L225 Difference]: With dead ends: 9262 [2021-11-09 10:42:03,232 INFO L226 Difference]: Without dead ends: 5344 [2021-11-09 10:42:03,237 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 935 GetRequests, 933 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:42:03,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-11-09 10:42:03,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4810. [2021-11-09 10:42:03,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0731960906633395) internal successors, (5161), 4809 states have internal predecessors, (5161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5161 transitions. [2021-11-09 10:42:03,320 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5161 transitions. Word has length 932 [2021-11-09 10:42:03,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:42:03,321 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5161 transitions. [2021-11-09 10:42:03,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:03,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5161 transitions. [2021-11-09 10:42:03,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1023 [2021-11-09 10:42:03,341 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:42:03,342 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:42:03,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-09 10:42:03,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-09 10:42:03,558 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:42:03,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:03,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1890752560, now seen corresponding path program 1 times [2021-11-09 10:42:03,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:03,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615260816] [2021-11-09 10:42:03,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:03,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:42:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3133 backedges. 1997 proven. 93 refuted. 0 times theorem prover too weak. 1043 trivial. 0 not checked. [2021-11-09 10:42:04,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:42:04,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615260816] [2021-11-09 10:42:04,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615260816] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:42:04,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650386032] [2021-11-09 10:42:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:04,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:42:04,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:42:04,164 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:42:04,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-09 10:42:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:42:06,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:42:06,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:42:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3133 backedges. 2090 proven. 0 refuted. 0 times theorem prover too weak. 1043 trivial. 0 not checked. [2021-11-09 10:42:08,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650386032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:42:08,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:42:08,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-09 10:42:08,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346818315] [2021-11-09 10:42:08,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:42:08,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:42:08,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:42:08,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:42:08,977 INFO L87 Difference]: Start difference. First operand 4810 states and 5161 transitions. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:09,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:42:09,400 INFO L93 Difference]: Finished difference Result 9974 states and 10685 transitions. [2021-11-09 10:42:09,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:42:09,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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 1022 [2021-11-09 10:42:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:42:09,408 INFO L225 Difference]: With dead ends: 9974 [2021-11-09 10:42:09,408 INFO L226 Difference]: Without dead ends: 5166 [2021-11-09 10:42:09,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1025 GetRequests, 1021 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:42:09,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-11-09 10:42:09,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2021-11-09 10:42:09,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0715861239221978) internal successors, (5344), 4987 states have internal predecessors, (5344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:09,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5344 transitions. [2021-11-09 10:42:09,486 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5344 transitions. Word has length 1022 [2021-11-09 10:42:09,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:42:09,487 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5344 transitions. [2021-11-09 10:42:09,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5344 transitions. [2021-11-09 10:42:09,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2021-11-09 10:42:09,505 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:42:09,506 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:42:09,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-09 10:42:09,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-09 10:42:09,724 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:42:09,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:09,725 INFO L85 PathProgramCache]: Analyzing trace with hash -913502566, now seen corresponding path program 1 times [2021-11-09 10:42:09,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:09,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030370724] [2021-11-09 10:42:09,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:09,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:42:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3795 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 3310 trivial. 0 not checked. [2021-11-09 10:42:10,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:42:10,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030370724] [2021-11-09 10:42:10,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030370724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:42:10,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:42:10,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:42:10,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954513725] [2021-11-09 10:42:10,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:42:10,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:42:10,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:42:10,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:42:10,365 INFO L87 Difference]: Start difference. First operand 4988 states and 5344 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:42:10,868 INFO L93 Difference]: Finished difference Result 10328 states and 11054 transitions. [2021-11-09 10:42:10,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:42:10,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 1099 [2021-11-09 10:42:10,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:42:10,870 INFO L225 Difference]: With dead ends: 10328 [2021-11-09 10:42:10,870 INFO L226 Difference]: Without dead ends: 0 [2021-11-09 10:42:10,875 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 [2021-11-09 10:42:10,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-09 10:42:10,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-09 10:42:10,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:10,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 10:42:10,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1099 [2021-11-09 10:42:10,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:42:10,876 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:42:10,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:10,876 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-09 10:42:10,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-09 10:42:10,878 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:42:10,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-09 10:42:10,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-09 10:42:10,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 10:42:11,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 10:42:11,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 10:42:11,294 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-11-09 10:42:11,294 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-11-09 10:42:11,294 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-11-09 10:42:11,294 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-11-09 10:42:11,294 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-11-09 10:42:11,294 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,294 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,295 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-09 10:42:11,296 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-11-09 10:42:11,297 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-11-09 10:42:11,298 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-11-09 10:42:11,298 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,298 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,298 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,298 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-11-09 10:42:11,298 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-11-09 10:42:11,298 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-11-09 10:42:11,298 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-09 10:42:11,298 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-11-09 10:42:11,299 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-09 10:42:11,300 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-11-09 10:42:11,300 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-11-09 10:42:11,300 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-11-09 10:42:11,300 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-11-09 10:42:11,300 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-11-09 10:42:11,300 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,300 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,300 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,300 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-11-09 10:42:11,301 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-09 10:42:11,301 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-09 10:42:11,301 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-11-09 10:42:11,301 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-11-09 10:42:11,301 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-11-09 10:42:11,301 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-11-09 10:42:11,301 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-09 10:42:11,301 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,301 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-11-09 10:42:11,302 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-11-09 10:42:11,303 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,303 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,303 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,303 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-11-09 10:42:11,303 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-09 10:42:11,303 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-11-09 10:42:11,303 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-11-09 10:42:11,303 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-11-09 10:42:11,303 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-11-09 10:42:11,304 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-11-09 10:42:11,304 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-11-09 10:42:11,304 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,304 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,304 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,304 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-09 10:42:11,304 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-11-09 10:42:11,304 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-11-09 10:42:11,304 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-09 10:42:11,305 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-11-09 10:42:11,305 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2021-11-09 10:42:11,305 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-11-09 10:42:11,305 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-11-09 10:42:11,305 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-11-09 10:42:11,305 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-11-09 10:42:11,306 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,306 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,306 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,306 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-11-09 10:42:11,306 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-11-09 10:42:11,306 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-09 10:42:11,306 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-11-09 10:42:11,306 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-09 10:42:11,306 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-11-09 10:42:11,307 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-11-09 10:42:11,307 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-11-09 10:42:11,307 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,307 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,307 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,307 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-09 10:42:11,307 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-09 10:42:11,307 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-11-09 10:42:11,307 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-11-09 10:42:11,308 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-11-09 10:42:11,308 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-11-09 10:42:11,308 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-11-09 10:42:11,308 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-11-09 10:42:11,308 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,308 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,308 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,308 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-11-09 10:42:11,308 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,309 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-11-09 10:42:11,310 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-11-09 10:42:11,310 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-11-09 10:42:11,310 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-11-09 10:42:11,310 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-11-09 10:42:11,310 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-11-09 10:42:11,310 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-11-09 10:42:11,310 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-11-09 10:42:11,310 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,310 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,311 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,311 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-11-09 10:42:11,311 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-09 10:42:11,311 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-11-09 10:42:11,311 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-11-09 10:42:11,311 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-11-09 10:42:11,311 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-11-09 10:42:11,311 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-11-09 10:42:11,311 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-11-09 10:42:11,312 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,312 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,312 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-11-09 10:42:11,312 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-09 10:42:11,312 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-11-09 10:42:11,312 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-11-09 10:42:11,312 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-11-09 10:42:11,312 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-11-09 10:42:11,312 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-11-09 10:42:11,313 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-11-09 10:42:11,313 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,313 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,313 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-11-09 10:42:11,313 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-09 10:42:11,313 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-09 10:42:11,313 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-09 10:42:11,313 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-11-09 10:42:11,313 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-11-09 10:42:11,314 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-11-09 10:42:11,314 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,314 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,314 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and .cse0 (<= 10 ~a21~0)) (and .cse0 (<= ~a21~0 8)) (and (<= 6 ~a15~0) .cse0) (and (<= ~a15~0 8) (<= ~a21~0 7) (<= (+ 49 ~a12~0) 0)) (and .cse0 (<= ~a12~0 78)))) [2021-11-09 10:42:11,314 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-11-09 10:42:11,314 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-11-09 10:42:11,314 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-09 10:42:11,315 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-11-09 10:42:11,315 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-11-09 10:42:11,315 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-11-09 10:42:11,315 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-11-09 10:42:11,315 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-11-09 10:42:11,315 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,315 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,315 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-11-09 10:42:11,315 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-11-09 10:42:11,315 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-11-09 10:42:11,316 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-09 10:42:11,316 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-09 10:42:11,316 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-11-09 10:42:11,316 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-11-09 10:42:11,316 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-11-09 10:42:11,316 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,316 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,316 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-09 10:42:11,316 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-11-09 10:42:11,317 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-11-09 10:42:11,317 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-09 10:42:11,317 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-11-09 10:42:11,317 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-11-09 10:42:11,317 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-11-09 10:42:11,317 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,317 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,317 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-09 10:42:11,317 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,318 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-11-09 10:42:11,318 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and .cse0 (<= 10 ~a21~0)) (and .cse0 (<= ~a21~0 8)) (and (<= 6 ~a15~0) .cse0) (and (<= ~a15~0 8) (<= ~a21~0 7) (<= (+ 49 ~a12~0) 0)) (and .cse0 (<= ~a12~0 78)))) [2021-11-09 10:42:11,318 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-11-09 10:42:11,318 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-11-09 10:42:11,318 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-09 10:42:11,318 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-09 10:42:11,318 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-09 10:42:11,318 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-11-09 10:42:11,318 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-11-09 10:42:11,319 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-11-09 10:42:11,319 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-11-09 10:42:11,319 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,319 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,319 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-11-09 10:42:11,319 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-11-09 10:42:11,319 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-09 10:42:11,319 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-11-09 10:42:11,319 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-09 10:42:11,323 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:42:11,325 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 10:42:11,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:42:11 BoogieIcfgContainer [2021-11-09 10:42:11,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 10:42:11,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:42:11,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:42:11,352 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:42:11,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:41:21" (3/4) ... [2021-11-09 10:42:11,355 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-09 10:42:11,387 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-09 10:42:11,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-09 10:42:11,390 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 10:42:11,392 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 10:42:11,555 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 10:42:11,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:42:11,557 INFO L168 Benchmark]: Toolchain (without parser) took 53155.35 ms. Allocated memory was 142.6 MB in the beginning and 524.3 MB in the end (delta: 381.7 MB). Free memory was 106.1 MB in the beginning and 308.1 MB in the end (delta: -202.0 MB). Peak memory consumption was 178.6 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:11,557 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory was 64.1 MB in the beginning and 64.1 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:42:11,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 903.83 ms. Allocated memory is still 142.6 MB. Free memory was 105.8 MB in the beginning and 95.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:11,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 147.86 ms. Allocated memory is still 142.6 MB. Free memory was 95.9 MB in the beginning and 86.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:11,559 INFO L168 Benchmark]: Boogie Preprocessor took 124.09 ms. Allocated memory is still 142.6 MB. Free memory was 86.1 MB in the beginning and 80.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:11,559 INFO L168 Benchmark]: RCFGBuilder took 1984.95 ms. Allocated memory is still 142.6 MB. Free memory was 80.5 MB in the beginning and 73.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:11,559 INFO L168 Benchmark]: TraceAbstraction took 49779.37 ms. Allocated memory was 142.6 MB in the beginning and 524.3 MB in the end (delta: 381.7 MB). Free memory was 72.8 MB in the beginning and 326.1 MB in the end (delta: -253.2 MB). Peak memory consumption was 317.9 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:11,560 INFO L168 Benchmark]: Witness Printer took 203.64 ms. Allocated memory is still 524.3 MB. Free memory was 326.1 MB in the beginning and 308.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:11,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory was 64.1 MB in the beginning and 64.1 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 903.83 ms. Allocated memory is still 142.6 MB. Free memory was 105.8 MB in the beginning and 95.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 147.86 ms. Allocated memory is still 142.6 MB. Free memory was 95.9 MB in the beginning and 86.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 124.09 ms. Allocated memory is still 142.6 MB. Free memory was 86.1 MB in the beginning and 80.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1984.95 ms. Allocated memory is still 142.6 MB. Free memory was 80.5 MB in the beginning and 73.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 49779.37 ms. Allocated memory was 142.6 MB in the beginning and 524.3 MB in the end (delta: 381.7 MB). Free memory was 72.8 MB in the beginning and 326.1 MB in the end (delta: -253.2 MB). Peak memory consumption was 317.9 MB. Max. memory is 16.1 GB. * Witness Printer took 203.64 ms. Allocated memory is still 524.3 MB. Free memory was 326.1 MB in the beginning and 308.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.9 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: 182]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.6s, OverallIterations: 18, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1323 SDtfs, 2470 SDslu, 100 SDs, 0 SdLazy, 9586 SolverSat, 1131 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5590 GetRequests, 5542 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4988occurred in iteration=17, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 18 MinimizatonAttempts, 5518 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 71 NumberOfFragments, 83 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6066 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 164 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 21.1s InterpolantComputationTime, 14421 NumberOfCodeBlocks, 14421 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 14394 ConstructedInterpolants, 0 QuantifiedInterpolants, 50067 SizeOfPredicates, 0 NumberOfNonLiveVariables, 7112 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 27 InterpolantComputations, 17 PerfectInterpolantSequences, 30284/31079 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((a24 == 1 && 10 <= a21) || (a24 == 1 && a21 <= 8)) || (6 <= a15 && a24 == 1)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || (a24 == 1 && a12 <= 78) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((a24 == 1 && 10 <= a21) || (a24 == 1 && a21 <= 8)) || (6 <= a15 && a24 == 1)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || (a24 == 1 && a12 <= 78) RESULT: Ultimate proved your program to be correct! [2021-11-09 10:42:11,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376af102-3640-4345-9816-7ec8d9b86b6e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE