./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label27.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label27.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF --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 4ceae147c0993f09d1996333054d05cdb50149b89c2ec286f40c2e532c4f5e1a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:39:14,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:39:14,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:39:14,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:39:14,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:39:14,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:39:14,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:39:14,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:39:14,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:39:14,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:39:14,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:39:14,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:39:14,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:39:14,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:39:14,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:39:14,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:39:14,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:39:14,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:39:14,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:39:14,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:39:14,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:39:14,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:39:14,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:39:14,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:39:14,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:39:14,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:39:14,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:39:14,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:39:14,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:39:14,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:39:14,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:39:14,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:39:14,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:39:14,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:39:14,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:39:14,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:39:14,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:39:14,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:39:14,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:39:14,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:39:14,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:39:14,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:39:14,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:39:14,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:39:14,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:39:14,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:39:14,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:39:14,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:39:14,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:39:14,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:39:14,641 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:39:14,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:39:14,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:39:14,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:39:14,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:39:14,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:39:14,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:39:14,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:39:14,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:39:14,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:39:14,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:39:14,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:39:14,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:39:14,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:39:14,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:39:14,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:39:14,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:39:14,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:39:14,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:39:14,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:39:14,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:39:14,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:39:14,649 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:39:14,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:39:14,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:39:14,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:39:14,650 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_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ceae147c0993f09d1996333054d05cdb50149b89c2ec286f40c2e532c4f5e1a [2021-11-20 07:39:14,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:39:14,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:39:14,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:39:14,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:39:14,934 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:39:14,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/eca-rers2012/Problem01_label27.c [2021-11-20 07:39:15,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/data/b6413d385/61324958c61b4ad29fdf4413cfeccff1/FLAGb3ae16efd [2021-11-20 07:39:15,592 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:39:15,593 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/sv-benchmarks/c/eca-rers2012/Problem01_label27.c [2021-11-20 07:39:15,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/data/b6413d385/61324958c61b4ad29fdf4413cfeccff1/FLAGb3ae16efd [2021-11-20 07:39:15,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/data/b6413d385/61324958c61b4ad29fdf4413cfeccff1 [2021-11-20 07:39:15,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:39:15,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:39:15,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:39:15,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:39:15,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:39:15,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:39:15" (1/1) ... [2021-11-20 07:39:15,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4ec5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:15, skipping insertion in model container [2021-11-20 07:39:15,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:39:15" (1/1) ... [2021-11-20 07:39:15,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:39:15,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:39:16,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/sv-benchmarks/c/eca-rers2012/Problem01_label27.c[16500,16513] [2021-11-20 07:39:16,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:39:16,411 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:39:16,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/sv-benchmarks/c/eca-rers2012/Problem01_label27.c[16500,16513] [2021-11-20 07:39:16,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:39:16,517 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:39:16,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16 WrapperNode [2021-11-20 07:39:16,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:39:16,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:39:16,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:39:16,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:39:16,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,614 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-11-20 07:39:16,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:39:16,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:39:16,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:39:16,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:39:16,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:39:16,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:39:16,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:39:16,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:39:16,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (1/1) ... [2021-11-20 07:39:16,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:39:16,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:39:16,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:39:16,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:39:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:39:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:39:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:39:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:39:16,867 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:39:16,869 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:39:17,898 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:39:17,914 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:39:17,914 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:39:17,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:39:17 BoogieIcfgContainer [2021-11-20 07:39:17,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:39:17,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:39:17,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:39:17,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:39:17,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:39:15" (1/3) ... [2021-11-20 07:39:17,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed8940c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:39:17, skipping insertion in model container [2021-11-20 07:39:17,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:16" (2/3) ... [2021-11-20 07:39:17,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed8940c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:39:17, skipping insertion in model container [2021-11-20 07:39:17,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:39:17" (3/3) ... [2021-11-20 07:39:17,926 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label27.c [2021-11-20 07:39:17,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:39:17,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:39:17,977 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:39:17,985 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 [2021-11-20 07:39:17,985 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:39:18,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-20 07:39:18,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:18,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:18,019 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:18,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:18,025 INFO L85 PathProgramCache]: Analyzing trace with hash 857291087, now seen corresponding path program 1 times [2021-11-20 07:39:18,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:18,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169153863] [2021-11-20 07:39:18,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:18,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:18,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:18,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169153863] [2021-11-20 07:39:18,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169153863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:18,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:18,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:39:18,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72359674] [2021-11-20 07:39:18,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:18,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:18,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:18,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:18,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:18,516 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 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 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:19,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:19,291 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-11-20 07:39:19,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:19,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2021-11-20 07:39:19,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:19,317 INFO L225 Difference]: With dead ends: 528 [2021-11-20 07:39:19,317 INFO L226 Difference]: Without dead ends: 266 [2021-11-20 07:39:19,326 INFO L932 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 [2021-11-20 07:39:19,330 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 97 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:19,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 66 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:39:19,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-20 07:39:19,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-11-20 07:39:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-11-20 07:39:19,413 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 88 [2021-11-20 07:39:19,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:19,414 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-11-20 07:39:19,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:19,415 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-11-20 07:39:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-20 07:39:19,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:19,419 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:19,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:39:19,420 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:19,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:19,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1648492327, now seen corresponding path program 1 times [2021-11-20 07:39:19,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:19,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117280624] [2021-11-20 07:39:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:19,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:19,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:19,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:19,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117280624] [2021-11-20 07:39:19,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117280624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:19,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:19,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:39:19,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913651682] [2021-11-20 07:39:19,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:19,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:19,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:19,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:19,481 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:19,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:19,913 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2021-11-20 07:39:19,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:19,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-11-20 07:39:19,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:19,919 INFO L225 Difference]: With dead ends: 792 [2021-11-20 07:39:19,919 INFO L226 Difference]: Without dead ends: 528 [2021-11-20 07:39:19,920 INFO L932 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 [2021-11-20 07:39:19,921 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:19,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:39:19,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-11-20 07:39:19,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-11-20 07:39:19,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3681214421252372) internal successors, (721), 527 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:19,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 721 transitions. [2021-11-20 07:39:19,959 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 721 transitions. Word has length 93 [2021-11-20 07:39:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:19,959 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 721 transitions. [2021-11-20 07:39:19,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 721 transitions. [2021-11-20 07:39:19,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-20 07:39:19,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:19,964 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:19,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:39:19,964 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:19,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:19,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1380296349, now seen corresponding path program 1 times [2021-11-20 07:39:19,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:19,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405672231] [2021-11-20 07:39:19,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:19,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:20,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:20,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405672231] [2021-11-20 07:39:20,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405672231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:20,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:20,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:39:20,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917221855] [2021-11-20 07:39:20,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:20,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:20,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:20,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:20,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:20,024 INFO L87 Difference]: Start difference. First operand 528 states and 721 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:20,532 INFO L93 Difference]: Finished difference Result 1447 states and 1979 transitions. [2021-11-20 07:39:20,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:20,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2021-11-20 07:39:20,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:20,539 INFO L225 Difference]: With dead ends: 1447 [2021-11-20 07:39:20,539 INFO L226 Difference]: Without dead ends: 921 [2021-11-20 07:39:20,542 INFO L932 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 [2021-11-20 07:39:20,551 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:20,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 07:39:20,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-20 07:39:20,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-11-20 07:39:20,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.3434782608695652) internal successors, (1236), 920 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1236 transitions. [2021-11-20 07:39:20,619 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1236 transitions. Word has length 97 [2021-11-20 07:39:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:20,620 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1236 transitions. [2021-11-20 07:39:20,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:20,620 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1236 transitions. [2021-11-20 07:39:20,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-20 07:39:20,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:20,625 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:20,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:39:20,626 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:20,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:20,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2121899539, now seen corresponding path program 1 times [2021-11-20 07:39:20,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:20,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673401705] [2021-11-20 07:39:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:20,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:20,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:20,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673401705] [2021-11-20 07:39:20,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673401705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:20,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:20,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:39:20,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383024743] [2021-11-20 07:39:20,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:20,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:20,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:20,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:20,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:20,759 INFO L87 Difference]: Start difference. First operand 921 states and 1236 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:21,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:21,172 INFO L93 Difference]: Finished difference Result 1840 states and 2470 transitions. [2021-11-20 07:39:21,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:21,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2021-11-20 07:39:21,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:21,178 INFO L225 Difference]: With dead ends: 1840 [2021-11-20 07:39:21,179 INFO L226 Difference]: Without dead ends: 921 [2021-11-20 07:39:21,180 INFO L932 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 [2021-11-20 07:39:21,181 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 129 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:21,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 61 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:39:21,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-20 07:39:21,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-11-20 07:39:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.3304347826086957) internal successors, (1224), 920 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1224 transitions. [2021-11-20 07:39:21,211 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1224 transitions. Word has length 101 [2021-11-20 07:39:21,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:21,212 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1224 transitions. [2021-11-20 07:39:21,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:21,212 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1224 transitions. [2021-11-20 07:39:21,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 07:39:21,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:21,214 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:21,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:39:21,215 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash 2015967182, now seen corresponding path program 1 times [2021-11-20 07:39:21,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:21,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486686446] [2021-11-20 07:39:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:21,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:21,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:21,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486686446] [2021-11-20 07:39:21,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486686446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:21,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:21,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:39:21,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388194270] [2021-11-20 07:39:21,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:21,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:21,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:21,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:21,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:21,271 INFO L87 Difference]: Start difference. First operand 921 states and 1224 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:21,671 INFO L93 Difference]: Finished difference Result 2233 states and 2923 transitions. [2021-11-20 07:39:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:21,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2021-11-20 07:39:21,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:21,677 INFO L225 Difference]: With dead ends: 2233 [2021-11-20 07:39:21,677 INFO L226 Difference]: Without dead ends: 1314 [2021-11-20 07:39:21,679 INFO L932 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 [2021-11-20 07:39:21,680 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:21,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 62 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:39:21,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2021-11-20 07:39:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1183. [2021-11-20 07:39:21,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2825719120135364) internal successors, (1516), 1182 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:21,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1516 transitions. [2021-11-20 07:39:21,715 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1516 transitions. Word has length 103 [2021-11-20 07:39:21,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:21,715 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1516 transitions. [2021-11-20 07:39:21,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:21,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1516 transitions. [2021-11-20 07:39:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-20 07:39:21,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:21,718 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:21,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:39:21,719 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:21,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2265750, now seen corresponding path program 1 times [2021-11-20 07:39:21,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:21,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326643928] [2021-11-20 07:39:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:21,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:21,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:21,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326643928] [2021-11-20 07:39:21,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326643928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:21,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:21,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:39:21,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859508714] [2021-11-20 07:39:21,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:21,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:39:21,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:21,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:39:21,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:39:21,819 INFO L87 Difference]: Start difference. First operand 1183 states and 1516 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:22,423 INFO L93 Difference]: Finished difference Result 2757 states and 3471 transitions. [2021-11-20 07:39:22,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:39:22,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-20 07:39:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:22,432 INFO L225 Difference]: With dead ends: 2757 [2021-11-20 07:39:22,432 INFO L226 Difference]: Without dead ends: 1576 [2021-11-20 07:39:22,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:39:22,435 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 386 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:22,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 59 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 07:39:22,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-11-20 07:39:22,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-11-20 07:39:22,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2479224376731302) internal successors, (1802), 1444 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:22,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1802 transitions. [2021-11-20 07:39:22,476 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1802 transitions. Word has length 107 [2021-11-20 07:39:22,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:22,476 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1802 transitions. [2021-11-20 07:39:22,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:22,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1802 transitions. [2021-11-20 07:39:22,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-20 07:39:22,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:22,479 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:22,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:39:22,480 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:22,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:22,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1256717015, now seen corresponding path program 1 times [2021-11-20 07:39:22,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:22,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905071410] [2021-11-20 07:39:22,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:22,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:22,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:22,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905071410] [2021-11-20 07:39:22,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905071410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:22,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:22,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:39:22,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469256356] [2021-11-20 07:39:22,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:22,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:22,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:22,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:22,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:22,576 INFO L87 Difference]: Start difference. First operand 1445 states and 1802 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:22,986 INFO L93 Difference]: Finished difference Result 3019 states and 3739 transitions. [2021-11-20 07:39:22,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-11-20 07:39:22,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:22,995 INFO L225 Difference]: With dead ends: 3019 [2021-11-20 07:39:22,995 INFO L226 Difference]: Without dead ends: 1576 [2021-11-20 07:39:22,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:22,998 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 47 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:22,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 193 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:39:23,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-11-20 07:39:23,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-11-20 07:39:23,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2049861495844876) internal successors, (1740), 1444 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1740 transitions. [2021-11-20 07:39:23,035 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1740 transitions. Word has length 125 [2021-11-20 07:39:23,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:23,035 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1740 transitions. [2021-11-20 07:39:23,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:23,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1740 transitions. [2021-11-20 07:39:23,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-20 07:39:23,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:23,039 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:23,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:39:23,039 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:23,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:23,040 INFO L85 PathProgramCache]: Analyzing trace with hash 144240950, now seen corresponding path program 1 times [2021-11-20 07:39:23,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:23,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333204300] [2021-11-20 07:39:23,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:23,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:23,157 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-20 07:39:23,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:23,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333204300] [2021-11-20 07:39:23,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333204300] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:39:23,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086828916] [2021-11-20 07:39:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:23,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:39:23,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:39:23,164 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:39:23,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:39:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:23,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:39:23,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-20 07:39:23,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:39:23,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086828916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:23,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:39:23,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-11-20 07:39:23,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398824255] [2021-11-20 07:39:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:23,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:23,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:23,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:23,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:39:23,788 INFO L87 Difference]: Start difference. First operand 1445 states and 1740 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:24,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:24,172 INFO L93 Difference]: Finished difference Result 2233 states and 2642 transitions. [2021-11-20 07:39:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:24,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 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 138 [2021-11-20 07:39:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:24,189 INFO L225 Difference]: With dead ends: 2233 [2021-11-20 07:39:24,190 INFO L226 Difference]: Without dead ends: 2231 [2021-11-20 07:39:24,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:39:24,191 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 66 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:24,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 31 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:39:24,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-11-20 07:39:24,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2021-11-20 07:39:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.1838565022421526) internal successors, (2640), 2230 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:24,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2640 transitions. [2021-11-20 07:39:24,252 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2640 transitions. Word has length 138 [2021-11-20 07:39:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:24,253 INFO L470 AbstractCegarLoop]: Abstraction has 2231 states and 2640 transitions. [2021-11-20 07:39:24,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2640 transitions. [2021-11-20 07:39:24,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-20 07:39:24,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:24,257 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:24,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:24,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-20 07:39:24,472 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:24,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:24,473 INFO L85 PathProgramCache]: Analyzing trace with hash -259303927, now seen corresponding path program 1 times [2021-11-20 07:39:24,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:24,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247013] [2021-11-20 07:39:24,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:24,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-20 07:39:24,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:24,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247013] [2021-11-20 07:39:24,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:24,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:24,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:39:24,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688299695] [2021-11-20 07:39:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:24,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:24,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:24,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:24,523 INFO L87 Difference]: Start difference. First operand 2231 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:24,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:24,924 INFO L93 Difference]: Finished difference Result 4853 states and 5762 transitions. [2021-11-20 07:39:24,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:24,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 145 [2021-11-20 07:39:24,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:24,936 INFO L225 Difference]: With dead ends: 4853 [2021-11-20 07:39:24,937 INFO L226 Difference]: Without dead ends: 2362 [2021-11-20 07:39:24,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:24,944 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 135 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:24,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 193 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:39:24,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-11-20 07:39:25,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2021-11-20 07:39:25,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.093854216293473) internal successors, (2296), 2099 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:25,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2296 transitions. [2021-11-20 07:39:25,024 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2296 transitions. Word has length 145 [2021-11-20 07:39:25,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:25,025 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2296 transitions. [2021-11-20 07:39:25,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2296 transitions. [2021-11-20 07:39:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-20 07:39:25,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:25,033 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:25,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 07:39:25,033 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:25,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:25,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1147508778, now seen corresponding path program 1 times [2021-11-20 07:39:25,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:25,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900846601] [2021-11-20 07:39:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:25,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 73 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-20 07:39:25,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:25,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900846601] [2021-11-20 07:39:25,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900846601] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:39:25,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408637036] [2021-11-20 07:39:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:25,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:39:25,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:39:25,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:39:25,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:39:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:25,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:39:25,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-20 07:39:25,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:39:25,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408637036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:25,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:39:25,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-20 07:39:25,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972585604] [2021-11-20 07:39:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:25,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:25,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:25,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:25,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:39:25,552 INFO L87 Difference]: Start difference. First operand 2100 states and 2296 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:25,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:25,936 INFO L93 Difference]: Finished difference Result 5508 states and 6042 transitions. [2021-11-20 07:39:25,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:25,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 152 [2021-11-20 07:39:25,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:25,954 INFO L225 Difference]: With dead ends: 5508 [2021-11-20 07:39:25,954 INFO L226 Difference]: Without dead ends: 3410 [2021-11-20 07:39:25,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:39:25,957 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 58 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:25,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 175 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:39:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2021-11-20 07:39:26,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3279. [2021-11-20 07:39:26,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 3278 states have (on average 1.0884685784014643) internal successors, (3568), 3278 states have internal predecessors, (3568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 3568 transitions. [2021-11-20 07:39:26,065 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 3568 transitions. Word has length 152 [2021-11-20 07:39:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:26,066 INFO L470 AbstractCegarLoop]: Abstraction has 3279 states and 3568 transitions. [2021-11-20 07:39:26,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 3568 transitions. [2021-11-20 07:39:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-20 07:39:26,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:26,072 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:26,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-20 07:39:26,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:39:26,288 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:26,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:26,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1377707438, now seen corresponding path program 1 times [2021-11-20 07:39:26,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:26,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202630918] [2021-11-20 07:39:26,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:26,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 66 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:26,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:26,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202630918] [2021-11-20 07:39:26,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202630918] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:39:26,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863887038] [2021-11-20 07:39:26,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:26,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:39:26,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:39:26,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:39:26,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:39:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:26,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:39:26,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-20 07:39:26,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:39:26,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863887038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:26,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:39:26,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-20 07:39:26,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061802230] [2021-11-20 07:39:26,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:26,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:26,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:26,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:26,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:39:26,746 INFO L87 Difference]: Start difference. First operand 3279 states and 3568 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:27,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:27,106 INFO L93 Difference]: Finished difference Result 7211 states and 7889 transitions. [2021-11-20 07:39:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:27,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 155 [2021-11-20 07:39:27,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:27,127 INFO L225 Difference]: With dead ends: 7211 [2021-11-20 07:39:27,127 INFO L226 Difference]: Without dead ends: 3803 [2021-11-20 07:39:27,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:39:27,132 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 52 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:27,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 172 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:39:27,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2021-11-20 07:39:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3279. [2021-11-20 07:39:27,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 3278 states have (on average 1.087248322147651) internal successors, (3564), 3278 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:27,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 3564 transitions. [2021-11-20 07:39:27,227 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 3564 transitions. Word has length 155 [2021-11-20 07:39:27,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:27,228 INFO L470 AbstractCegarLoop]: Abstraction has 3279 states and 3564 transitions. [2021-11-20 07:39:27,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:27,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 3564 transitions. [2021-11-20 07:39:27,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-20 07:39:27,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:27,235 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:27,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:27,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:39:27,448 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:27,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:27,449 INFO L85 PathProgramCache]: Analyzing trace with hash -581380260, now seen corresponding path program 1 times [2021-11-20 07:39:27,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:27,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237471678] [2021-11-20 07:39:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:27,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:27,519 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 115 proven. 10 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-20 07:39:27,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:27,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237471678] [2021-11-20 07:39:27,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237471678] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:39:27,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574034299] [2021-11-20 07:39:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:27,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:39:27,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:39:27,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:39:27,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:39:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:27,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:39:27,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-20 07:39:28,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:39:28,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574034299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:28,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:39:28,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-20 07:39:28,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557865271] [2021-11-20 07:39:28,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:28,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:39:28,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:28,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:39:28,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:39:28,049 INFO L87 Difference]: Start difference. First operand 3279 states and 3564 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:28,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:28,602 INFO L93 Difference]: Finished difference Result 6161 states and 6703 transitions. [2021-11-20 07:39:28,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:39:28,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 184 [2021-11-20 07:39:28,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:28,603 INFO L225 Difference]: With dead ends: 6161 [2021-11-20 07:39:28,603 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 07:39:28,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:39:28,610 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 318 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:28,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 34 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 07:39:28,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 07:39:28,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 07:39:28,611 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) [2021-11-20 07:39:28,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:39:28,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2021-11-20 07:39:28,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:28,612 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:39:28,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:28,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:39:28,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 07:39:28,615 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:39:28,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:28,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 07:39:28,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 07:39:29,528 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,529 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-11-20 07:39:29,530 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-11-20 07:39:29,532 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-11-20 07:39:29,532 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-11-20 07:39:29,532 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-11-20 07:39:29,532 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-11-20 07:39:29,533 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-11-20 07:39:29,534 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-11-20 07:39:29,534 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,535 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,535 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,535 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,535 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,535 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-11-20 07:39:29,535 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,535 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-11-20 07:39:29,535 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-11-20 07:39:29,536 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-11-20 07:39:29,536 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-11-20 07:39:29,536 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-11-20 07:39:29,536 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-11-20 07:39:29,536 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-11-20 07:39:29,536 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-11-20 07:39:29,537 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-11-20 07:39:29,537 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-11-20 07:39:29,538 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-11-20 07:39:29,538 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-11-20 07:39:29,538 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-11-20 07:39:29,538 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-11-20 07:39:29,538 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,538 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,538 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,539 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,539 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,539 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,539 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-11-20 07:39:29,539 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-11-20 07:39:29,539 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-11-20 07:39:29,539 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-11-20 07:39:29,540 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-11-20 07:39:29,540 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-11-20 07:39:29,540 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-11-20 07:39:29,540 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-11-20 07:39:29,540 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-11-20 07:39:29,540 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-11-20 07:39:29,540 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-11-20 07:39:29,541 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-11-20 07:39:29,541 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,541 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,541 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,541 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,541 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,541 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,542 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-11-20 07:39:29,543 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-11-20 07:39:29,543 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-11-20 07:39:29,543 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-11-20 07:39:29,543 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-11-20 07:39:29,543 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-11-20 07:39:29,543 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-11-20 07:39:29,543 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-11-20 07:39:29,544 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-11-20 07:39:29,544 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-11-20 07:39:29,544 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,544 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,544 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,544 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,545 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,545 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,545 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-11-20 07:39:29,545 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-11-20 07:39:29,546 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-11-20 07:39:29,546 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-11-20 07:39:29,546 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-11-20 07:39:29,546 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-11-20 07:39:29,546 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-11-20 07:39:29,547 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-11-20 07:39:29,547 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-11-20 07:39:29,547 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-11-20 07:39:29,547 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-11-20 07:39:29,547 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-11-20 07:39:29,547 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-11-20 07:39:29,547 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-11-20 07:39:29,548 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-11-20 07:39:29,548 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,548 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,548 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,549 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,549 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,550 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 07:39:29,550 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-11-20 07:39:29,550 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-11-20 07:39:29,550 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-11-20 07:39:29,550 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-11-20 07:39:29,550 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-11-20 07:39:29,551 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-11-20 07:39:29,551 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-11-20 07:39:29,551 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-11-20 07:39:29,552 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-11-20 07:39:29,552 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0)) (.cse5 (not (= ~a7~0 1))) (.cse2 (<= ~a16~0 5)) (.cse4 (= ~a21~0 1)) (.cse7 (= ~a17~0 1)) (.cse1 (<= ~a8~0 13)) (.cse6 (= ~a16~0 6)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2) (and .cse5 .cse4 .cse2 .cse3) (and .cse0 .cse6 .cse4) (and .cse1 .cse4 .cse7 .cse3) (and .cse6 .cse5 .cse4 .cse3) (and (<= ~a8~0 14) .cse4 .cse2) (and (<= ~a7~0 0) .cse4 .cse7 .cse3) (and .cse1 .cse6 .cse3))) [2021-11-20 07:39:29,552 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,553 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,553 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,553 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,553 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,553 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-11-20 07:39:29,553 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-11-20 07:39:29,553 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-11-20 07:39:29,554 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-11-20 07:39:29,554 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-11-20 07:39:29,554 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-11-20 07:39:29,554 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-11-20 07:39:29,554 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-11-20 07:39:29,554 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-11-20 07:39:29,555 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-11-20 07:39:29,555 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-11-20 07:39:29,555 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-11-20 07:39:29,555 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 07:39:29,555 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-11-20 07:39:29,555 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-11-20 07:39:29,555 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,556 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,556 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,556 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,556 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,556 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-11-20 07:39:29,556 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-11-20 07:39:29,556 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-11-20 07:39:29,557 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-11-20 07:39:29,557 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-11-20 07:39:29,557 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-11-20 07:39:29,557 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-11-20 07:39:29,557 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-11-20 07:39:29,557 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-11-20 07:39:29,557 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 07:39:29,557 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,558 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,558 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,558 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,558 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-11-20 07:39:29,558 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,558 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-11-20 07:39:29,558 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-11-20 07:39:29,559 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-11-20 07:39:29,559 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-11-20 07:39:29,559 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-11-20 07:39:29,559 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-11-20 07:39:29,559 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-11-20 07:39:29,559 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-11-20 07:39:29,559 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-11-20 07:39:29,560 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-11-20 07:39:29,560 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-11-20 07:39:29,560 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-11-20 07:39:29,560 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-11-20 07:39:29,560 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,562 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0)) (.cse5 (not (= ~a7~0 1))) (.cse2 (<= ~a16~0 5)) (.cse4 (= ~a21~0 1)) (.cse7 (= ~a17~0 1)) (.cse1 (<= ~a8~0 13)) (.cse6 (= ~a16~0 6)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2) (and .cse5 .cse4 .cse2 .cse3) (and .cse0 .cse6 .cse4) (and .cse1 .cse4 .cse7 .cse3) (and .cse6 .cse5 .cse4 .cse3) (and (<= ~a8~0 14) .cse4 .cse2) (and (<= ~a7~0 0) .cse4 .cse7 .cse3) (and .cse1 .cse6 .cse3))) [2021-11-20 07:39:29,562 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,562 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,562 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,562 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,562 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-11-20 07:39:29,563 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 07:39:29,563 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 450) no Hoare annotation was computed. [2021-11-20 07:39:29,563 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-11-20 07:39:29,563 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-11-20 07:39:29,563 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-11-20 07:39:29,563 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-11-20 07:39:29,564 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-11-20 07:39:29,564 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-11-20 07:39:29,564 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-11-20 07:39:29,564 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,564 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,564 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,564 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,565 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:39:29,565 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-11-20 07:39:29,565 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-11-20 07:39:29,565 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-11-20 07:39:29,565 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-11-20 07:39:29,569 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:29,571 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:39:29,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:39:29 BoogieIcfgContainer [2021-11-20 07:39:29,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:39:29,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:39:29,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:39:29,612 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:39:29,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:39:17" (3/4) ... [2021-11-20 07:39:29,615 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 07:39:29,647 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 07:39:29,649 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 07:39:29,650 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 07:39:29,651 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:39:29,796 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:39:29,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:39:29,797 INFO L158 Benchmark]: Toolchain (without parser) took 13923.54ms. Allocated memory was 96.5MB in the beginning and 232.8MB in the end (delta: 136.3MB). Free memory was 59.1MB in the beginning and 186.9MB in the end (delta: -127.8MB). Peak memory consumption was 131.6MB. Max. memory is 16.1GB. [2021-11-20 07:39:29,797 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 67.7MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:39:29,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.19ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 58.8MB in the beginning and 81.9MB in the end (delta: -23.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 07:39:29,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.14ms. Allocated memory is still 123.7MB. Free memory was 81.9MB in the beginning and 76.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 07:39:29,799 INFO L158 Benchmark]: Boogie Preprocessor took 85.25ms. Allocated memory is still 123.7MB. Free memory was 76.4MB in the beginning and 72.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:39:29,800 INFO L158 Benchmark]: RCFGBuilder took 1216.21ms. Allocated memory is still 123.7MB. Free memory was 72.2MB in the beginning and 71.9MB in the end (delta: 316.7kB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2021-11-20 07:39:29,800 INFO L158 Benchmark]: TraceAbstraction took 11691.69ms. Allocated memory was 123.7MB in the beginning and 232.8MB in the end (delta: 109.1MB). Free memory was 71.2MB in the beginning and 65.9MB in the end (delta: 5.4MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. [2021-11-20 07:39:29,801 INFO L158 Benchmark]: Witness Printer took 185.15ms. Allocated memory is still 232.8MB. Free memory was 65.9MB in the beginning and 186.9MB in the end (delta: -121.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:39:29,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 67.7MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 642.19ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 58.8MB in the beginning and 81.9MB in the end (delta: -23.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.14ms. Allocated memory is still 123.7MB. Free memory was 81.9MB in the beginning and 76.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.25ms. Allocated memory is still 123.7MB. Free memory was 76.4MB in the beginning and 72.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1216.21ms. Allocated memory is still 123.7MB. Free memory was 72.2MB in the beginning and 71.9MB in the end (delta: 316.7kB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * TraceAbstraction took 11691.69ms. Allocated memory was 123.7MB in the beginning and 232.8MB in the end (delta: 109.1MB). Free memory was 71.2MB in the beginning and 65.9MB in the end (delta: 5.4MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. * Witness Printer took 185.15ms. Allocated memory is still 232.8MB. Free memory was 65.9MB in the beginning and 186.9MB in the end (delta: -121.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 450]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.6s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1724 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1724 mSDsluCounter, 1092 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 702 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4270 IncrementalHoareTripleChecker+Invalid, 4972 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 702 mSolverCounterUnsat, 1020 mSDtfsCounter, 4270 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3279occurred in iteration=10, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 1310 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 231 HoareAnnotationTreeSize, 3 FomulaSimplifications, 54 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2054 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 2117 NumberOfCodeBlocks, 2117 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2101 ConstructedInterpolants, 0 QuantifiedInterpolants, 4948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1279 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 979/1034 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: 593]: Loop Invariant Derived loop invariant: ((((((((((a20 <= 0 && a8 <= 13) && a16 <= 5) || ((a8 <= 13 && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a21 == 1) && a16 <= 5)) || (((!(a7 == 1) && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a16 == 6) && a21 == 1)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a16 == 6 && !(a7 == 1)) && a21 == 1) && a20 == 1)) || ((a8 <= 14 && a21 == 1) && a16 <= 5)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1)) || ((a8 <= 13 && a16 == 6) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((a20 <= 0 && a8 <= 13) && a16 <= 5) || ((a8 <= 13 && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a21 == 1) && a16 <= 5)) || (((!(a7 == 1) && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a16 == 6) && a21 == 1)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a16 == 6 && !(a7 == 1)) && a21 == 1) && a20 == 1)) || ((a8 <= 14 && a21 == 1) && a16 <= 5)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1)) || ((a8 <= 13 && a16 == 6) && a20 == 1) RESULT: Ultimate proved your program to be correct! [2021-11-20 07:39:29,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b5e346-bb71-451f-b4ff-b06bb98ecdc1/bin/uautomizer-DQz5hQGWxF/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