./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label23.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_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/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_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/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_853403d6-59d8-4e06-99a7-9066ca5e85f0/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 9f1cd2841a16dfe2f8fe839faac013546a2b72431aadffbb7fe449f6c6dcaf65 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:01:26,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:01:26,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:01:26,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:01:26,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:01:26,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:01:26,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:01:26,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:01:26,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:01:26,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:01:26,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:01:26,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:01:26,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:01:26,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:01:26,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:01:26,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:01:26,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:01:26,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:01:26,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:01:26,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:01:26,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:01:26,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:01:26,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:01:26,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:01:26,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:01:26,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:01:26,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:01:26,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:01:26,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:01:26,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:01:26,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:01:26,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:01:26,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:01:26,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:01:26,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:01:26,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:01:26,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:01:26,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:01:26,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:01:26,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:01:26,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:01:26,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:01:26,828 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:01:26,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:01:26,829 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:01:26,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:01:26,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:01:26,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:01:26,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:01:26,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:01:26,842 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:01:26,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:01:26,842 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:01:26,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:01:26,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:01:26,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:01:26,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:01:26,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:01:26,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:01:26,844 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:01:26,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:01:26,845 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:01:26,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:01:26,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:01:26,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:01:26,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:01:26,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:01:26,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:01:26,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:01:26,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:01:26,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:01:26,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:01:26,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:01:26,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:01:26,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:01:26,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:01:26,861 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_853403d6-59d8-4e06-99a7-9066ca5e85f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f1cd2841a16dfe2f8fe839faac013546a2b72431aadffbb7fe449f6c6dcaf65 [2021-11-20 07:01:27,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:01:27,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:01:27,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:01:27,205 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:01:27,206 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:01:27,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/eca-rers2012/Problem01_label23.c [2021-11-20 07:01:27,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/data/dc902a953/c13e2d14915b4ef0b2b942d25f0d3b2b/FLAG0b8bd8feb [2021-11-20 07:01:27,989 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:01:27,990 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/sv-benchmarks/c/eca-rers2012/Problem01_label23.c [2021-11-20 07:01:28,010 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/data/dc902a953/c13e2d14915b4ef0b2b942d25f0d3b2b/FLAG0b8bd8feb [2021-11-20 07:01:28,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/data/dc902a953/c13e2d14915b4ef0b2b942d25f0d3b2b [2021-11-20 07:01:28,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:01:28,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:01:28,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:01:28,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:01:28,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:01:28,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:01:28" (1/1) ... [2021-11-20 07:01:28,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50dbe4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:28, skipping insertion in model container [2021-11-20 07:01:28,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:01:28" (1/1) ... [2021-11-20 07:01:28,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:01:28,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:01:28,765 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_853403d6-59d8-4e06-99a7-9066ca5e85f0/sv-benchmarks/c/eca-rers2012/Problem01_label23.c[17363,17376] [2021-11-20 07:01:28,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:01:28,827 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:01:28,988 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_853403d6-59d8-4e06-99a7-9066ca5e85f0/sv-benchmarks/c/eca-rers2012/Problem01_label23.c[17363,17376] [2021-11-20 07:01:29,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:01:29,040 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:01:29,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29 WrapperNode [2021-11-20 07:01:29,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:01:29,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:01:29,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:01:29,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:01:29,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,153 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-11-20 07:01:29,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:01:29,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:01:29,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:01:29,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:01:29,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:01:29,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:01:29,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:01:29,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:01:29,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (1/1) ... [2021-11-20 07:01:29,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:01:29,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:01:29,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:01:29,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:01:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:01:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:01:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:01:29,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:01:29,492 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:01:29,494 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:01:30,813 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:01:30,824 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:01:30,825 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:01:30,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:01:30 BoogieIcfgContainer [2021-11-20 07:01:30,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:01:30,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:01:30,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:01:30,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:01:30,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:01:28" (1/3) ... [2021-11-20 07:01:30,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33671a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:01:30, skipping insertion in model container [2021-11-20 07:01:30,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:29" (2/3) ... [2021-11-20 07:01:30,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33671a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:01:30, skipping insertion in model container [2021-11-20 07:01:30,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:01:30" (3/3) ... [2021-11-20 07:01:30,841 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label23.c [2021-11-20 07:01:30,861 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:01:30,862 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:01:30,997 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:01:31,006 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 07:01:31,006 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:01:31,073 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 07:01:31,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-20 07:01:31,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:31,103 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:01:31,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:31,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:31,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1911993682, now seen corresponding path program 1 times [2021-11-20 07:01:31,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:31,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340529161] [2021-11-20 07:01:31,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:31,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:31,654 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 07:01:31,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:31,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340529161] [2021-11-20 07:01:31,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340529161] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:31,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:01:31,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:01:31,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490946109] [2021-11-20 07:01:31,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:31,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:31,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:31,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:01:31,712 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 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:01:32,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:32,673 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-11-20 07:01:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:32,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-11-20 07:01:32,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:32,693 INFO L225 Difference]: With dead ends: 528 [2021-11-20 07:01:32,693 INFO L226 Difference]: Without dead ends: 266 [2021-11-20 07:01:32,698 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 07:01:32,703 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 93 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:32,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 51 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:01:32,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-20 07:01:32,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-11-20 07:01:32,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4566037735849056) internal successors, (386), 265 states have internal predecessors, (386), 0 states have call successors, (0), 0 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 07:01:32,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2021-11-20 07:01:32,773 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 95 [2021-11-20 07:01:32,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:32,775 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2021-11-20 07:01:32,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:01:32,775 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2021-11-20 07:01:32,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-20 07:01:32,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:32,782 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:01:32,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:01:32,783 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:32,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:32,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1657256635, now seen corresponding path program 1 times [2021-11-20 07:01:32,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:32,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121158879] [2021-11-20 07:01:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:32,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:01:32,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:32,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121158879] [2021-11-20 07:01:32,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121158879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:32,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:01:32,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:01:32,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807239663] [2021-11-20 07:01:32,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:32,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:32,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:32,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:32,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:01:32,864 INFO L87 Difference]: Start difference. First operand 266 states and 386 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 07:01:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:33,398 INFO L93 Difference]: Finished difference Result 792 states and 1153 transitions. [2021-11-20 07:01:33,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:33,399 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 07:01:33,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:33,404 INFO L225 Difference]: With dead ends: 792 [2021-11-20 07:01:33,404 INFO L226 Difference]: Without dead ends: 528 [2021-11-20 07:01:33,405 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 07:01:33,407 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:33,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 07:01:33,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-11-20 07:01:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-11-20 07:01:33,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3795066413662238) internal successors, (727), 527 states have internal predecessors, (727), 0 states have call successors, (0), 0 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 07:01:33,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 727 transitions. [2021-11-20 07:01:33,479 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 727 transitions. Word has length 101 [2021-11-20 07:01:33,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:33,483 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 727 transitions. [2021-11-20 07:01:33,485 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 07:01:33,485 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 727 transitions. [2021-11-20 07:01:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 07:01:33,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:33,505 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:01:33,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:01:33,506 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:33,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:33,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1528488005, now seen corresponding path program 1 times [2021-11-20 07:01:33,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:33,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724584436] [2021-11-20 07:01:33,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:33,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:33,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:01:33,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:33,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724584436] [2021-11-20 07:01:33,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724584436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:33,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:01:33,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:01:33,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555203723] [2021-11-20 07:01:33,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:33,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:33,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:33,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:33,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:01:33,660 INFO L87 Difference]: Start difference. First operand 528 states and 727 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 07:01:34,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:34,220 INFO L93 Difference]: Finished difference Result 1447 states and 1991 transitions. [2021-11-20 07:01:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:34,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-11-20 07:01:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:34,227 INFO L225 Difference]: With dead ends: 1447 [2021-11-20 07:01:34,228 INFO L226 Difference]: Without dead ends: 921 [2021-11-20 07:01:34,229 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 07:01:34,231 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 39 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:34,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 211 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 07:01:34,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-20 07:01:34,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 659. [2021-11-20 07:01:34,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3404255319148937) internal successors, (882), 658 states have internal predecessors, (882), 0 states have call successors, (0), 0 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 07:01:34,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 882 transitions. [2021-11-20 07:01:34,260 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 882 transitions. Word has length 102 [2021-11-20 07:01:34,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:34,261 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 882 transitions. [2021-11-20 07:01:34,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 07:01:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 882 transitions. [2021-11-20 07:01:34,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 07:01:34,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:34,265 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:01:34,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:01:34,265 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:34,267 INFO L85 PathProgramCache]: Analyzing trace with hash 882295146, now seen corresponding path program 1 times [2021-11-20 07:01:34,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:34,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356414429] [2021-11-20 07:01:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:34,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:34,376 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 07:01:34,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:34,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356414429] [2021-11-20 07:01:34,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356414429] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:34,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:01:34,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:01:34,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165073842] [2021-11-20 07:01:34,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:34,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:34,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:34,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:34,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:01:34,384 INFO L87 Difference]: Start difference. First operand 659 states and 882 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 07:01:34,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:34,896 INFO L93 Difference]: Finished difference Result 1971 states and 2641 transitions. [2021-11-20 07:01:34,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:34,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2021-11-20 07:01:34,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:34,908 INFO L225 Difference]: With dead ends: 1971 [2021-11-20 07:01:34,908 INFO L226 Difference]: Without dead ends: 1183 [2021-11-20 07:01:34,910 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 07:01:34,912 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:34,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 54 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 07:01:34,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-11-20 07:01:34,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2021-11-20 07:01:34,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.1742808798646363) internal successors, (1388), 1182 states have internal predecessors, (1388), 0 states have call successors, (0), 0 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 07:01:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1388 transitions. [2021-11-20 07:01:34,966 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1388 transitions. Word has length 108 [2021-11-20 07:01:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:34,967 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1388 transitions. [2021-11-20 07:01:34,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 07:01:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1388 transitions. [2021-11-20 07:01:34,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-20 07:01:34,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:34,972 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2021-11-20 07:01:34,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:01:34,972 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:34,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:34,973 INFO L85 PathProgramCache]: Analyzing trace with hash -203138944, now seen corresponding path program 1 times [2021-11-20 07:01:34,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:34,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421890313] [2021-11-20 07:01:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:34,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:35,043 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 07:01:35,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:35,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421890313] [2021-11-20 07:01:35,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421890313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:35,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:01:35,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:01:35,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560405683] [2021-11-20 07:01:35,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:35,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:35,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:35,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:35,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:01:35,047 INFO L87 Difference]: Start difference. First operand 1183 states and 1388 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:01:35,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:35,515 INFO L93 Difference]: Finished difference Result 2757 states and 3262 transitions. [2021-11-20 07:01:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:35,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-11-20 07:01:35,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:35,527 INFO L225 Difference]: With dead ends: 2757 [2021-11-20 07:01:35,527 INFO L226 Difference]: Without dead ends: 1707 [2021-11-20 07:01:35,534 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 07:01:35,543 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 130 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:35,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 39 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:01:35,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-11-20 07:01:35,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1445. [2021-11-20 07:01:35,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.175207756232687) internal successors, (1697), 1444 states have internal predecessors, (1697), 0 states have call successors, (0), 0 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 07:01:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1697 transitions. [2021-11-20 07:01:35,608 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1697 transitions. Word has length 121 [2021-11-20 07:01:35,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:35,608 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1697 transitions. [2021-11-20 07:01:35,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:01:35,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1697 transitions. [2021-11-20 07:01:35,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 07:01:35,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:35,618 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:35,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:01:35,619 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:35,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1604160105, now seen corresponding path program 1 times [2021-11-20 07:01:35,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:35,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527437522] [2021-11-20 07:01:35,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:35,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:35,708 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 07:01:35,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:35,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527437522] [2021-11-20 07:01:35,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527437522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:35,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:01:35,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:01:35,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581178868] [2021-11-20 07:01:35,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:35,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:35,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:35,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:35,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:01:35,711 INFO L87 Difference]: Start difference. First operand 1445 states and 1697 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 07:01:36,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:36,170 INFO L93 Difference]: Finished difference Result 2888 states and 3407 transitions. [2021-11-20 07:01:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:36,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 123 [2021-11-20 07:01:36,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:36,179 INFO L225 Difference]: With dead ends: 2888 [2021-11-20 07:01:36,179 INFO L226 Difference]: Without dead ends: 1576 [2021-11-20 07:01:36,181 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 07:01:36,183 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 119 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:36,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 54 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:01:36,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-11-20 07:01:36,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-11-20 07:01:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.1657142857142857) internal successors, (1836), 1575 states have internal predecessors, (1836), 0 states have call successors, (0), 0 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 07:01:36,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1836 transitions. [2021-11-20 07:01:36,233 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1836 transitions. Word has length 123 [2021-11-20 07:01:36,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:36,234 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 1836 transitions. [2021-11-20 07:01:36,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 07:01:36,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1836 transitions. [2021-11-20 07:01:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-20 07:01:36,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:36,239 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:36,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:01:36,239 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:36,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:36,240 INFO L85 PathProgramCache]: Analyzing trace with hash -823807695, now seen corresponding path program 1 times [2021-11-20 07:01:36,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:36,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821235948] [2021-11-20 07:01:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:36,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 07:01:36,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:36,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821235948] [2021-11-20 07:01:36,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821235948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:36,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:01:36,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:01:36,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737564731] [2021-11-20 07:01:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:36,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:01:36,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:36,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:01:36,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:01:36,313 INFO L87 Difference]: Start difference. First operand 1576 states and 1836 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 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 07:01:36,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:36,978 INFO L93 Difference]: Finished difference Result 3281 states and 3836 transitions. [2021-11-20 07:01:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:01:36,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 127 [2021-11-20 07:01:36,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:36,992 INFO L225 Difference]: With dead ends: 3281 [2021-11-20 07:01:36,992 INFO L226 Difference]: Without dead ends: 1838 [2021-11-20 07:01:36,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:01:36,996 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 383 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:36,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 54 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 07:01:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2021-11-20 07:01:37,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1707. [2021-11-20 07:01:37,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.1547479484173506) internal successors, (1970), 1706 states have internal predecessors, (1970), 0 states have call successors, (0), 0 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 07:01:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1970 transitions. [2021-11-20 07:01:37,060 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1970 transitions. Word has length 127 [2021-11-20 07:01:37,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:37,061 INFO L470 AbstractCegarLoop]: Abstraction has 1707 states and 1970 transitions. [2021-11-20 07:01:37,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 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 07:01:37,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1970 transitions. [2021-11-20 07:01:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-20 07:01:37,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:37,067 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:37,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:01:37,068 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:37,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:37,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1539141362, now seen corresponding path program 1 times [2021-11-20 07:01:37,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:37,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056496551] [2021-11-20 07:01:37,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:37,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:01:37,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056496551] [2021-11-20 07:01:37,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056496551] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:01:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432936559] [2021-11-20 07:01:37,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:37,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:01:37,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:01:37,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:01:37,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:01:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:37,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:01:37,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:01:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 07:01:37,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:01:37,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432936559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:37,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:01:37,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-20 07:01:37,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871298842] [2021-11-20 07:01:37,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:37,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:37,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:37,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:37,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:01:37,848 INFO L87 Difference]: Start difference. First operand 1707 states and 1970 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 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 07:01:38,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:38,379 INFO L93 Difference]: Finished difference Result 3805 states and 4470 transitions. [2021-11-20 07:01:38,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:38,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 07:01:38,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:38,394 INFO L225 Difference]: With dead ends: 3805 [2021-11-20 07:01:38,394 INFO L226 Difference]: Without dead ends: 2100 [2021-11-20 07:01:38,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 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 07:01:38,398 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 39 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:38,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 189 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 07:01:38,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-11-20 07:01:38,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1576. [2021-11-20 07:01:38,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.16) internal successors, (1827), 1575 states have internal predecessors, (1827), 0 states have call successors, (0), 0 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 07:01:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1827 transitions. [2021-11-20 07:01:38,454 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1827 transitions. Word has length 145 [2021-11-20 07:01:38,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:38,455 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 1827 transitions. [2021-11-20 07:01:38,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 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 07:01:38,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1827 transitions. [2021-11-20 07:01:38,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-20 07:01:38,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:38,461 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:38,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:01:38,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:01:38,683 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:38,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:38,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1337842042, now seen corresponding path program 1 times [2021-11-20 07:01:38,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:38,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544415383] [2021-11-20 07:01:38,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:38,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 07:01:38,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:38,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544415383] [2021-11-20 07:01:38,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544415383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:38,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:01:38,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:01:38,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490719065] [2021-11-20 07:01:38,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:38,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:38,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:38,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:38,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:01:38,770 INFO L87 Difference]: Start difference. First operand 1576 states and 1827 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 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 07:01:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:39,217 INFO L93 Difference]: Finished difference Result 3019 states and 3518 transitions. [2021-11-20 07:01:39,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 153 [2021-11-20 07:01:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:39,228 INFO L225 Difference]: With dead ends: 3019 [2021-11-20 07:01:39,228 INFO L226 Difference]: Without dead ends: 1576 [2021-11-20 07:01:39,230 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 07:01:39,231 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 117 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:39,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 27 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:01:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-11-20 07:01:39,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-11-20 07:01:39,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.1092063492063493) internal successors, (1747), 1575 states have internal predecessors, (1747), 0 states have call successors, (0), 0 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 07:01:39,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1747 transitions. [2021-11-20 07:01:39,281 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1747 transitions. Word has length 153 [2021-11-20 07:01:39,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:39,282 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 1747 transitions. [2021-11-20 07:01:39,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 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 07:01:39,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1747 transitions. [2021-11-20 07:01:39,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-20 07:01:39,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:39,288 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 07:01:39,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 07:01:39,288 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:39,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash -628114179, now seen corresponding path program 1 times [2021-11-20 07:01:39,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:39,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935973248] [2021-11-20 07:01:39,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:39,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:39,478 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:01:39,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:39,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935973248] [2021-11-20 07:01:39,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935973248] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:01:39,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431476771] [2021-11-20 07:01:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:39,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:01:39,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:01:39,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:01:39,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:01:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:39,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:01:39,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:01:40,098 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-20 07:01:40,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:01:40,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431476771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:40,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:01:40,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-11-20 07:01:40,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671782568] [2021-11-20 07:01:40,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:40,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:40,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:40,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:40,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:01:40,103 INFO L87 Difference]: Start difference. First operand 1576 states and 1747 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 07:01:40,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:40,581 INFO L93 Difference]: Finished difference Result 4198 states and 4681 transitions. [2021-11-20 07:01:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:40,582 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 154 [2021-11-20 07:01:40,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:40,599 INFO L225 Difference]: With dead ends: 4198 [2021-11-20 07:01:40,599 INFO L226 Difference]: Without dead ends: 2755 [2021-11-20 07:01:40,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 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 07:01:40,603 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 60 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:40,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 29 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:01:40,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2021-11-20 07:01:40,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2755. [2021-11-20 07:01:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 1.107843137254902) internal successors, (3051), 2754 states have internal predecessors, (3051), 0 states have call successors, (0), 0 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 07:01:40,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3051 transitions. [2021-11-20 07:01:40,708 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3051 transitions. Word has length 154 [2021-11-20 07:01:40,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:40,709 INFO L470 AbstractCegarLoop]: Abstraction has 2755 states and 3051 transitions. [2021-11-20 07:01:40,709 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 07:01:40,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3051 transitions. [2021-11-20 07:01:40,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-20 07:01:40,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:40,716 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 07:01:40,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:01:40,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:01:40,935 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:40,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:40,935 INFO L85 PathProgramCache]: Analyzing trace with hash 701300223, now seen corresponding path program 1 times [2021-11-20 07:01:40,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:40,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245638825] [2021-11-20 07:01:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:40,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:41,015 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 78 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-20 07:01:41,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:41,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245638825] [2021-11-20 07:01:41,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245638825] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:01:41,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361737638] [2021-11-20 07:01:41,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:41,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:01:41,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:01:41,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:01:41,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:01:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:41,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:01:41,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:01:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-20 07:01:41,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:01:41,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361737638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:41,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:01:41,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-20 07:01:41,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636386840] [2021-11-20 07:01:41,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:41,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:41,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:41,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:41,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:01:41,488 INFO L87 Difference]: Start difference. First operand 2755 states and 3051 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:01:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:41,916 INFO L93 Difference]: Finished difference Result 5508 states and 6118 transitions. [2021-11-20 07:01:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:41,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2021-11-20 07:01:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:41,935 INFO L225 Difference]: With dead ends: 5508 [2021-11-20 07:01:41,935 INFO L226 Difference]: Without dead ends: 2886 [2021-11-20 07:01:41,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 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 07:01:41,940 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 43 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:41,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 163 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:01:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-11-20 07:01:42,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2624. [2021-11-20 07:01:42,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2623 states have (on average 1.0865421273351126) internal successors, (2850), 2623 states have internal predecessors, (2850), 0 states have call successors, (0), 0 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 07:01:42,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 2850 transitions. [2021-11-20 07:01:42,072 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 2850 transitions. Word has length 164 [2021-11-20 07:01:42,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:42,073 INFO L470 AbstractCegarLoop]: Abstraction has 2624 states and 2850 transitions. [2021-11-20 07:01:42,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:01:42,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 2850 transitions. [2021-11-20 07:01:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-20 07:01:42,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:01:42,083 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:01:42,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:01:42,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:01:42,307 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:01:42,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:01:42,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1680615400, now seen corresponding path program 1 times [2021-11-20 07:01:42,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:01:42,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037223899] [2021-11-20 07:01:42,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:42,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:01:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 105 proven. 10 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-20 07:01:42,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:01:42,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037223899] [2021-11-20 07:01:42,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037223899] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:01:42,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638297533] [2021-11-20 07:01:42,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:01:42,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:01:42,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:01:42,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:01:42,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:01:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:01:42,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:01:42,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:01:42,934 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-20 07:01:42,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:01:42,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638297533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:01:42,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:01:42,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-20 07:01:42,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147494709] [2021-11-20 07:01:42,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:01:42,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:01:42,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:01:42,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:01:42,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:01:42,940 INFO L87 Difference]: Start difference. First operand 2624 states and 2850 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 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 07:01:43,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:01:43,384 INFO L93 Difference]: Finished difference Result 5113 states and 5566 transitions. [2021-11-20 07:01:43,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:01:43,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 181 [2021-11-20 07:01:43,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:01:43,386 INFO L225 Difference]: With dead ends: 5113 [2021-11-20 07:01:43,386 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 07:01:43,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 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 07:01:43,394 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 50 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:01:43,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 170 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:01:43,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 07:01:43,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 07:01:43,396 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 07:01:43,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:01:43,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2021-11-20 07:01:43,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:01:43,397 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:01:43,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 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 07:01:43,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:01:43,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 07:01:43,401 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:01:43,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:01:43,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 07:01:43,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 07:01:44,370 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-11-20 07:01:44,370 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-11-20 07:01:44,370 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-11-20 07:01:44,370 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-11-20 07:01:44,371 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-11-20 07:01:44,371 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-11-20 07:01:44,371 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-11-20 07:01:44,371 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-11-20 07:01:44,371 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,371 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,371 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,371 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,371 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-11-20 07:01:44,372 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-11-20 07:01:44,373 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-11-20 07:01:44,373 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-11-20 07:01:44,373 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-11-20 07:01:44,373 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-11-20 07:01:44,373 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,373 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,373 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,373 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,373 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-11-20 07:01:44,374 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,375 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-11-20 07:01:44,376 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-11-20 07:01:44,377 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-11-20 07:01:44,378 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-11-20 07:01:44,378 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-11-20 07:01:44,378 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-11-20 07:01:44,378 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-11-20 07:01:44,378 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-11-20 07:01:44,378 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-11-20 07:01:44,380 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-11-20 07:01:44,380 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-11-20 07:01:44,380 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,380 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,380 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,380 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,381 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,381 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,382 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-11-20 07:01:44,382 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-11-20 07:01:44,382 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-11-20 07:01:44,382 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-11-20 07:01:44,382 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-11-20 07:01:44,382 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-11-20 07:01:44,383 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-11-20 07:01:44,383 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-11-20 07:01:44,383 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-11-20 07:01:44,383 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-11-20 07:01:44,383 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-11-20 07:01:44,383 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-11-20 07:01:44,384 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-11-20 07:01:44,384 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-11-20 07:01:44,384 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-11-20 07:01:44,384 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,384 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,384 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,385 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,385 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,385 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 07:01:44,385 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-11-20 07:01:44,385 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-11-20 07:01:44,385 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-11-20 07:01:44,386 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-11-20 07:01:44,386 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-11-20 07:01:44,386 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-11-20 07:01:44,386 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-11-20 07:01:44,387 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-11-20 07:01:44,387 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-11-20 07:01:44,388 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse4 (<= ~a8~0 13)) (.cse6 (<= 5 ~a16~0)) (.cse7 (= ~a20~0 1)) (.cse11 (<= ~a8~0 14)) (.cse3 (<= ~a16~0 5))) (let ((.cse8 (<= ~a17~0 0)) (.cse10 (or .cse4 (and .cse6 .cse11 .cse7) (and .cse11 .cse3))) (.cse5 (<= ~a7~0 0)) (.cse0 (<= ~a20~0 0)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 1)) (.cse9 (<= 15 ~a8~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2) (and .cse5 .cse6 .cse1 .cse2 .cse3 .cse7) (and .cse0 .cse8 .cse9) (and .cse0 .cse10) (and .cse4 .cse2 .cse7) (and .cse6 .cse8 .cse7) (and .cse5 .cse8 .cse7) (and .cse8 .cse10) (and .cse11 .cse1 .cse2 .cse3 .cse7) (and .cse5 .cse0 .cse1 .cse2 .cse9)))) [2021-11-20 07:01:44,389 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,389 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,389 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,389 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,389 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,389 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-11-20 07:01:44,390 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-11-20 07:01:44,390 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-11-20 07:01:44,390 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-11-20 07:01:44,390 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-11-20 07:01:44,390 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-11-20 07:01:44,390 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-11-20 07:01:44,391 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-11-20 07:01:44,391 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-11-20 07:01:44,391 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-11-20 07:01:44,391 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-11-20 07:01:44,391 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-11-20 07:01:44,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 07:01:44,392 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-11-20 07:01:44,392 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-11-20 07:01:44,392 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,392 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,392 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,392 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,393 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,393 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-11-20 07:01:44,393 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-11-20 07:01:44,393 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-11-20 07:01:44,393 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-11-20 07:01:44,393 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-11-20 07:01:44,393 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-11-20 07:01:44,394 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-11-20 07:01:44,394 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-11-20 07:01:44,394 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-11-20 07:01:44,394 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 07:01:44,394 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,394 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,395 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,395 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,395 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-11-20 07:01:44,395 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,395 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-11-20 07:01:44,395 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-11-20 07:01:44,396 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-11-20 07:01:44,396 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-11-20 07:01:44,396 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-11-20 07:01:44,396 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-11-20 07:01:44,396 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-11-20 07:01:44,396 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-11-20 07:01:44,397 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-11-20 07:01:44,397 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-11-20 07:01:44,397 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-11-20 07:01:44,397 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-11-20 07:01:44,397 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-11-20 07:01:44,397 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,398 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse4 (<= ~a8~0 13)) (.cse6 (<= 5 ~a16~0)) (.cse7 (= ~a20~0 1)) (.cse11 (<= ~a8~0 14)) (.cse3 (<= ~a16~0 5))) (let ((.cse8 (<= ~a17~0 0)) (.cse10 (or .cse4 (and .cse6 .cse11 .cse7) (and .cse11 .cse3))) (.cse5 (<= ~a7~0 0)) (.cse0 (<= ~a20~0 0)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 1)) (.cse9 (<= 15 ~a8~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2) (and .cse5 .cse6 .cse1 .cse2 .cse3 .cse7) (and .cse0 .cse8 .cse9) (and .cse0 .cse10) (and .cse4 .cse2 .cse7) (and .cse6 .cse8 .cse7) (and .cse5 .cse8 .cse7) (and .cse8 .cse10) (and .cse11 .cse1 .cse2 .cse3 .cse7) (and .cse5 .cse0 .cse1 .cse2 .cse9)))) [2021-11-20 07:01:44,398 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,399 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,399 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,399 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,399 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-11-20 07:01:44,399 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 07:01:44,400 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 471) no Hoare annotation was computed. [2021-11-20 07:01:44,400 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-11-20 07:01:44,400 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-11-20 07:01:44,400 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-11-20 07:01:44,400 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-11-20 07:01:44,400 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-11-20 07:01:44,401 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-11-20 07:01:44,401 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-11-20 07:01:44,401 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,401 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,401 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,401 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,402 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 07:01:44,402 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-11-20 07:01:44,402 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-11-20 07:01:44,402 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-11-20 07:01:44,402 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-11-20 07:01:44,416 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:01:44,424 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:01:44,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:01:44 BoogieIcfgContainer [2021-11-20 07:01:44,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:01:44,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:01:44,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:01:44,482 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:01:44,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:01:30" (3/4) ... [2021-11-20 07:01:44,486 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 07:01:44,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 07:01:44,523 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 07:01:44,525 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 07:01:44,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:01:44,682 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:01:44,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:01:44,683 INFO L158 Benchmark]: Toolchain (without parser) took 16527.38ms. Allocated memory was 88.1MB in the beginning and 209.7MB in the end (delta: 121.6MB). Free memory was 43.9MB in the beginning and 77.7MB in the end (delta: -33.8MB). Peak memory consumption was 86.1MB. Max. memory is 16.1GB. [2021-11-20 07:01:44,683 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:01:44,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.08ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 43.7MB in the beginning and 65.3MB in the end (delta: -21.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2021-11-20 07:01:44,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.85ms. Allocated memory is still 111.1MB. Free memory was 65.3MB in the beginning and 59.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 07:01:44,685 INFO L158 Benchmark]: Boogie Preprocessor took 75.35ms. Allocated memory is still 111.1MB. Free memory was 59.8MB in the beginning and 55.2MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:01:44,685 INFO L158 Benchmark]: RCFGBuilder took 1597.14ms. Allocated memory is still 111.1MB. Free memory was 55.2MB in the beginning and 78.8MB in the end (delta: -23.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2021-11-20 07:01:44,686 INFO L158 Benchmark]: TraceAbstraction took 13650.76ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 78.2MB in the beginning and 92.4MB in the end (delta: -14.2MB). Peak memory consumption was 119.1MB. Max. memory is 16.1GB. [2021-11-20 07:01:44,686 INFO L158 Benchmark]: Witness Printer took 200.82ms. Allocated memory is still 209.7MB. Free memory was 92.4MB in the beginning and 77.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 07:01:44,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.08ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 43.7MB in the beginning and 65.3MB in the end (delta: -21.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.85ms. Allocated memory is still 111.1MB. Free memory was 65.3MB in the beginning and 59.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.35ms. Allocated memory is still 111.1MB. Free memory was 59.8MB in the beginning and 55.2MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1597.14ms. Allocated memory is still 111.1MB. Free memory was 55.2MB in the beginning and 78.8MB in the end (delta: -23.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13650.76ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 78.2MB in the beginning and 92.4MB in the end (delta: -14.2MB). Peak memory consumption was 119.1MB. Max. memory is 16.1GB. * Witness Printer took 200.82ms. Allocated memory is still 209.7MB. Free memory was 92.4MB in the beginning and 77.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 471]: 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: 13.4s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1350 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1350 mSDsluCounter, 1077 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 589 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4027 IncrementalHoareTripleChecker+Invalid, 4616 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 589 mSolverCounterUnsat, 1012 mSDtfsCounter, 4027 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 671 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2755occurred in iteration=10, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1441 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 331 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1190 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 918 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 2218 NumberOfCodeBlocks, 2218 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2202 ConstructedInterpolants, 0 QuantifiedInterpolants, 5200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1271 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 933/1023 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 && a21 == 1) && a17 == 1) && a16 <= 5) || ((a8 <= 13 && a21 == 1) && a17 == 1)) || (((((a7 <= 0 && 5 <= a16) && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a17 <= 0) && 15 <= a8)) || (a20 <= 0 && ((a8 <= 13 || ((5 <= a16 && a8 <= 14) && a20 == 1)) || (a8 <= 14 && a16 <= 5)))) || ((a8 <= 13 && a17 == 1) && a20 == 1)) || ((5 <= a16 && a17 <= 0) && a20 == 1)) || ((a7 <= 0 && a17 <= 0) && a20 == 1)) || (a17 <= 0 && ((a8 <= 13 || ((5 <= a16 && a8 <= 14) && a20 == 1)) || (a8 <= 14 && a16 <= 5)))) || ((((a8 <= 14 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || ((((a7 <= 0 && a20 <= 0) && a21 == 1) && a17 == 1) && 15 <= a8) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5) || ((a8 <= 13 && a21 == 1) && a17 == 1)) || (((((a7 <= 0 && 5 <= a16) && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a17 <= 0) && 15 <= a8)) || (a20 <= 0 && ((a8 <= 13 || ((5 <= a16 && a8 <= 14) && a20 == 1)) || (a8 <= 14 && a16 <= 5)))) || ((a8 <= 13 && a17 == 1) && a20 == 1)) || ((5 <= a16 && a17 <= 0) && a20 == 1)) || ((a7 <= 0 && a17 <= 0) && a20 == 1)) || (a17 <= 0 && ((a8 <= 13 || ((5 <= a16 && a8 <= 14) && a20 == 1)) || (a8 <= 14 && a16 <= 5)))) || ((((a8 <= 14 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || ((((a7 <= 0 && a20 <= 0) && a21 == 1) && a17 == 1) && 15 <= a8) RESULT: Ultimate proved your program to be correct! [2021-11-20 07:01:44,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853403d6-59d8-4e06-99a7-9066ca5e85f0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE