./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label31.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be --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 a6b4686a702c55ef2a6c6f32177e8de2a3958b27b177bd3bb0594e6295487599 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:57:16,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:57:16,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:57:16,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:57:16,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:57:16,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:57:16,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:57:16,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:57:16,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:57:16,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:57:16,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:57:16,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:57:16,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:57:16,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:57:16,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:57:16,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:57:16,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:57:16,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:57:16,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:57:16,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:57:16,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:57:16,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:57:16,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:57:16,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:57:16,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:57:16,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:57:16,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:57:16,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:57:16,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:57:16,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:57:16,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:57:16,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:57:16,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:57:16,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:57:16,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:57:16,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:57:16,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:57:16,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:57:16,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:57:16,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:57:16,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:57:16,242 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:57:16,295 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:57:16,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:57:16,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:57:16,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:57:16,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:57:16,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:57:16,306 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:57:16,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:57:16,307 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:57:16,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:57:16,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:57:16,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:57:16,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:57:16,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:57:16,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:57:16,310 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:57:16,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:57:16,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:57:16,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:57:16,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:57:16,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:57:16,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:57:16,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:57:16,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:57:16,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:57:16,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:57:16,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:57:16,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:57:16,314 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:57:16,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:57:16,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:57:16,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:57:16,317 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_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6b4686a702c55ef2a6c6f32177e8de2a3958b27b177bd3bb0594e6295487599 [2021-10-21 19:57:16,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:57:16,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:57:16,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:57:16,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:57:16,703 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:57:16,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2021-10-21 19:57:16,789 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/data/1a5d4ab5e/616d8981622c4cb682c5566851b06db9/FLAG4193dd034 [2021-10-21 19:57:17,490 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:57:17,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2021-10-21 19:57:17,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/data/1a5d4ab5e/616d8981622c4cb682c5566851b06db9/FLAG4193dd034 [2021-10-21 19:57:17,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/data/1a5d4ab5e/616d8981622c4cb682c5566851b06db9 [2021-10-21 19:57:17,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:57:17,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:57:17,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:57:17,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:57:17,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:57:17,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:57:17" (1/1) ... [2021-10-21 19:57:17,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440f2eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:17, skipping insertion in model container [2021-10-21 19:57:17,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:57:17" (1/1) ... [2021-10-21 19:57:17,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:57:17,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:57:18,440 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/sv-benchmarks/c/eca-rers2012/Problem02_label31.c[18601,18614] [2021-10-21 19:57:18,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:57:18,499 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:57:18,584 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/sv-benchmarks/c/eca-rers2012/Problem02_label31.c[18601,18614] [2021-10-21 19:57:18,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:57:18,625 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:57:18,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18 WrapperNode [2021-10-21 19:57:18,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:57:18,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:57:18,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:57:18,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:57:18,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:57:18,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:57:18,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:57:18,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:57:18,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:57:18,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:57:18,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:57:18,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:57:18,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (1/1) ... [2021-10-21 19:57:18,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:57:18,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:57:18,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:57:18,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:57:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:57:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:57:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:57:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:57:20,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:57:20,506 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:57:20,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:57:20 BoogieIcfgContainer [2021-10-21 19:57:20,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:57:20,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:57:20,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:57:20,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:57:20,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:57:17" (1/3) ... [2021-10-21 19:57:20,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e19582b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:57:20, skipping insertion in model container [2021-10-21 19:57:20,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:57:18" (2/3) ... [2021-10-21 19:57:20,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e19582b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:57:20, skipping insertion in model container [2021-10-21 19:57:20,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:57:20" (3/3) ... [2021-10-21 19:57:20,523 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label31.c [2021-10-21 19:57:20,530 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:57:20,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:57:20,610 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:57:20,622 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:57:20,623 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:57:20,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:20,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-10-21 19:57:20,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:20,667 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:20,668 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:20,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:20,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1691815701, now seen corresponding path program 1 times [2021-10-21 19:57:20,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:20,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636283153] [2021-10-21 19:57:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:20,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:21,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:57:21,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:21,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636283153] [2021-10-21 19:57:21,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636283153] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:21,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:21,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:57:21,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685971436] [2021-10-21 19:57:21,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:21,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:21,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:21,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:21,287 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 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 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:22,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:22,256 INFO L93 Difference]: Finished difference Result 601 states and 1035 transitions. [2021-10-21 19:57:22,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:22,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-10-21 19:57:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:22,288 INFO L225 Difference]: With dead ends: 601 [2021-10-21 19:57:22,289 INFO L226 Difference]: Without dead ends: 310 [2021-10-21 19:57:22,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:22,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-10-21 19:57:22,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2021-10-21 19:57:22,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.4368932038834952) internal successors, (444), 309 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:22,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 444 transitions. [2021-10-21 19:57:22,388 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 444 transitions. Word has length 116 [2021-10-21 19:57:22,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:22,389 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 444 transitions. [2021-10-21 19:57:22,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 444 transitions. [2021-10-21 19:57:22,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-10-21 19:57:22,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:22,395 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:22,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:57:22,396 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:22,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:22,397 INFO L82 PathProgramCache]: Analyzing trace with hash -306269546, now seen corresponding path program 1 times [2021-10-21 19:57:22,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:22,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342731033] [2021-10-21 19:57:22,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:22,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:22,594 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:57:22,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:22,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342731033] [2021-10-21 19:57:22,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342731033] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:22,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:22,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:57:22,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522116753] [2021-10-21 19:57:22,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:22,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:22,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:22,600 INFO L87 Difference]: Start difference. First operand 310 states and 444 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) [2021-10-21 19:57:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:23,181 INFO L93 Difference]: Finished difference Result 911 states and 1313 transitions. [2021-10-21 19:57:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:23,182 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 134 [2021-10-21 19:57:23,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:23,186 INFO L225 Difference]: With dead ends: 911 [2021-10-21 19:57:23,186 INFO L226 Difference]: Without dead ends: 603 [2021-10-21 19:57:23,188 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-10-21 19:57:23,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 598. [2021-10-21 19:57:23,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 597 states have (on average 1.3953098827470687) internal successors, (833), 597 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:23,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 833 transitions. [2021-10-21 19:57:23,253 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 833 transitions. Word has length 134 [2021-10-21 19:57:23,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:23,254 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 833 transitions. [2021-10-21 19:57:23,254 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) [2021-10-21 19:57:23,255 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 833 transitions. [2021-10-21 19:57:23,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-10-21 19:57:23,261 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:23,261 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:23,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:57:23,262 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:23,263 INFO L82 PathProgramCache]: Analyzing trace with hash 5389586, now seen corresponding path program 1 times [2021-10-21 19:57:23,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:23,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131644852] [2021-10-21 19:57:23,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:23,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:57:23,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:23,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131644852] [2021-10-21 19:57:23,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131644852] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:23,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:23,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:57:23,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607699926] [2021-10-21 19:57:23,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:23,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:23,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:23,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:23,345 INFO L87 Difference]: Start difference. First operand 598 states and 833 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:23,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:23,979 INFO L93 Difference]: Finished difference Result 1755 states and 2451 transitions. [2021-10-21 19:57:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:23,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2021-10-21 19:57:23,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:23,987 INFO L225 Difference]: With dead ends: 1755 [2021-10-21 19:57:23,987 INFO L226 Difference]: Without dead ends: 1159 [2021-10-21 19:57:23,989 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:23,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2021-10-21 19:57:24,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2021-10-21 19:57:24,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1158 states have (on average 1.3419689119170986) internal successors, (1554), 1158 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:24,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1554 transitions. [2021-10-21 19:57:24,090 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1554 transitions. Word has length 144 [2021-10-21 19:57:24,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:24,091 INFO L470 AbstractCegarLoop]: Abstraction has 1159 states and 1554 transitions. [2021-10-21 19:57:24,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:24,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1554 transitions. [2021-10-21 19:57:24,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-10-21 19:57:24,115 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:24,116 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:24,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:57:24,117 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:24,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:24,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1535556893, now seen corresponding path program 1 times [2021-10-21 19:57:24,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:24,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395927676] [2021-10-21 19:57:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:24,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:57:24,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:24,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395927676] [2021-10-21 19:57:24,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395927676] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:24,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:24,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:57:24,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490440970] [2021-10-21 19:57:24,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:24,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:24,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:24,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:24,212 INFO L87 Difference]: Start difference. First operand 1159 states and 1554 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:24,809 INFO L93 Difference]: Finished difference Result 3454 states and 4636 transitions. [2021-10-21 19:57:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:24,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 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 [2021-10-21 19:57:24,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:24,826 INFO L225 Difference]: With dead ends: 3454 [2021-10-21 19:57:24,826 INFO L226 Difference]: Without dead ends: 2297 [2021-10-21 19:57:24,828 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2021-10-21 19:57:24,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 2295. [2021-10-21 19:57:24,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 2294 states have (on average 1.2903225806451613) internal successors, (2960), 2294 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:24,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 2960 transitions. [2021-10-21 19:57:24,900 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 2960 transitions. Word has length 145 [2021-10-21 19:57:24,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:24,901 INFO L470 AbstractCegarLoop]: Abstraction has 2295 states and 2960 transitions. [2021-10-21 19:57:24,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 2960 transitions. [2021-10-21 19:57:24,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-10-21 19:57:24,908 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:24,908 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:24,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:57:24,909 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:24,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:24,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1601879897, now seen corresponding path program 1 times [2021-10-21 19:57:24,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:24,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891052181] [2021-10-21 19:57:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:24,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-21 19:57:24,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:24,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891052181] [2021-10-21 19:57:24,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891052181] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:24,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:24,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:57:24,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022381855] [2021-10-21 19:57:24,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:24,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:24,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:24,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:24,987 INFO L87 Difference]: Start difference. First operand 2295 states and 2960 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:25,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:25,515 INFO L93 Difference]: Finished difference Result 4588 states and 5920 transitions. [2021-10-21 19:57:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:25,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 149 [2021-10-21 19:57:25,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:25,532 INFO L225 Difference]: With dead ends: 4588 [2021-10-21 19:57:25,532 INFO L226 Difference]: Without dead ends: 2295 [2021-10-21 19:57:25,535 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:25,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2021-10-21 19:57:25,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2286. [2021-10-21 19:57:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2286 states, 2285 states have (on average 1.2280087527352297) internal successors, (2806), 2285 states have internal predecessors, (2806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:25,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 2806 transitions. [2021-10-21 19:57:25,627 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 2806 transitions. Word has length 149 [2021-10-21 19:57:25,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:25,629 INFO L470 AbstractCegarLoop]: Abstraction has 2286 states and 2806 transitions. [2021-10-21 19:57:25,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:25,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 2806 transitions. [2021-10-21 19:57:25,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-10-21 19:57:25,636 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:25,637 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:25,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:57:25,637 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:25,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:25,638 INFO L82 PathProgramCache]: Analyzing trace with hash 256350590, now seen corresponding path program 1 times [2021-10-21 19:57:25,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:25,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441540036] [2021-10-21 19:57:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:25,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:57:25,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:25,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441540036] [2021-10-21 19:57:25,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441540036] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:25,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:25,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:57:25,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096454137] [2021-10-21 19:57:25,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:25,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:25,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:25,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:25,768 INFO L87 Difference]: Start difference. First operand 2286 states and 2806 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:26,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:26,301 INFO L93 Difference]: Finished difference Result 4414 states and 5399 transitions. [2021-10-21 19:57:26,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:26,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2021-10-21 19:57:26,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:26,318 INFO L225 Difference]: With dead ends: 4414 [2021-10-21 19:57:26,318 INFO L226 Difference]: Without dead ends: 2130 [2021-10-21 19:57:26,322 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:26,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2021-10-21 19:57:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1430. [2021-10-21 19:57:26,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1429 states have (on average 1.1637508747375787) internal successors, (1663), 1429 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:26,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1663 transitions. [2021-10-21 19:57:26,368 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1663 transitions. Word has length 152 [2021-10-21 19:57:26,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:26,368 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 1663 transitions. [2021-10-21 19:57:26,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:26,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1663 transitions. [2021-10-21 19:57:26,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-10-21 19:57:26,374 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:26,374 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:26,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:57:26,375 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:26,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:26,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1547050092, now seen corresponding path program 1 times [2021-10-21 19:57:26,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:26,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780786809] [2021-10-21 19:57:26,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:26,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:26,511 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:57:26,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:26,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780786809] [2021-10-21 19:57:26,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780786809] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:26,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:26,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:57:26,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87239979] [2021-10-21 19:57:26,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:57:26,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:26,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:57:26,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:57:26,516 INFO L87 Difference]: Start difference. First operand 1430 states and 1663 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:27,517 INFO L93 Difference]: Finished difference Result 3740 states and 4296 transitions. [2021-10-21 19:57:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:57:27,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-10-21 19:57:27,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:27,529 INFO L225 Difference]: With dead ends: 3740 [2021-10-21 19:57:27,529 INFO L226 Difference]: Without dead ends: 2026 [2021-10-21 19:57:27,532 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 37.1ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:57:27,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2021-10-21 19:57:27,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1570. [2021-10-21 19:57:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 1.1351179094964945) internal successors, (1781), 1569 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1781 transitions. [2021-10-21 19:57:27,584 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1781 transitions. Word has length 157 [2021-10-21 19:57:27,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:27,584 INFO L470 AbstractCegarLoop]: Abstraction has 1570 states and 1781 transitions. [2021-10-21 19:57:27,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:27,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1781 transitions. [2021-10-21 19:57:27,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-10-21 19:57:27,590 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:27,591 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:27,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:57:27,592 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:27,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:27,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1921855434, now seen corresponding path program 1 times [2021-10-21 19:57:27,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:27,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318226646] [2021-10-21 19:57:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:27,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:57:27,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:27,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318226646] [2021-10-21 19:57:27,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318226646] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:27,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:27,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:57:27,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594885732] [2021-10-21 19:57:27,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:27,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:27,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:27,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:27,670 INFO L87 Difference]: Start difference. First operand 1570 states and 1781 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:28,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:28,190 INFO L93 Difference]: Finished difference Result 3839 states and 4331 transitions. [2021-10-21 19:57:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:28,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2021-10-21 19:57:28,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:28,206 INFO L225 Difference]: With dead ends: 3839 [2021-10-21 19:57:28,206 INFO L226 Difference]: Without dead ends: 2271 [2021-10-21 19:57:28,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:28,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2021-10-21 19:57:28,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2130. [2021-10-21 19:57:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2129 states have (on average 1.1014560826679192) internal successors, (2345), 2129 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:28,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2345 transitions. [2021-10-21 19:57:28,279 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2345 transitions. Word has length 178 [2021-10-21 19:57:28,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:28,280 INFO L470 AbstractCegarLoop]: Abstraction has 2130 states and 2345 transitions. [2021-10-21 19:57:28,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2345 transitions. [2021-10-21 19:57:28,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-10-21 19:57:28,290 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:28,290 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:28,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:57:28,291 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:28,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:28,292 INFO L82 PathProgramCache]: Analyzing trace with hash 462591916, now seen corresponding path program 1 times [2021-10-21 19:57:28,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:28,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631580575] [2021-10-21 19:57:28,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:28,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:28,393 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-10-21 19:57:28,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:28,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631580575] [2021-10-21 19:57:28,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631580575] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:28,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:28,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:57:28,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315684796] [2021-10-21 19:57:28,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:28,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:28,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:28,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:28,397 INFO L87 Difference]: Start difference. First operand 2130 states and 2345 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:28,914 INFO L93 Difference]: Finished difference Result 4679 states and 5144 transitions. [2021-10-21 19:57:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:28,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2021-10-21 19:57:28,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:28,928 INFO L225 Difference]: With dead ends: 4679 [2021-10-21 19:57:28,928 INFO L226 Difference]: Without dead ends: 2551 [2021-10-21 19:57:28,935 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:28,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2021-10-21 19:57:28,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 2410. [2021-10-21 19:57:28,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2410 states, 2409 states have (on average 1.0975508509755085) internal successors, (2644), 2409 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 2644 transitions. [2021-10-21 19:57:29,005 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 2644 transitions. Word has length 212 [2021-10-21 19:57:29,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:29,006 INFO L470 AbstractCegarLoop]: Abstraction has 2410 states and 2644 transitions. [2021-10-21 19:57:29,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 2644 transitions. [2021-10-21 19:57:29,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-10-21 19:57:29,014 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:29,015 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:29,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:57:29,015 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:29,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:29,016 INFO L82 PathProgramCache]: Analyzing trace with hash 914172155, now seen corresponding path program 1 times [2021-10-21 19:57:29,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:29,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590156601] [2021-10-21 19:57:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:29,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:29,138 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 102 proven. 13 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-21 19:57:29,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:29,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590156601] [2021-10-21 19:57:29,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590156601] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:57:29,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068443732] [2021-10-21 19:57:29,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:29,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:57:29,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:57:29,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:57:29,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:57:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:29,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:57:29,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:57:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-10-21 19:57:29,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068443732] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:29,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:57:29,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:57:29,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224651554] [2021-10-21 19:57:29,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:29,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:29,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:29,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:57:29,887 INFO L87 Difference]: Start difference. First operand 2410 states and 2644 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:30,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:30,352 INFO L93 Difference]: Finished difference Result 4958 states and 5429 transitions. [2021-10-21 19:57:30,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:30,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2021-10-21 19:57:30,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:30,362 INFO L225 Difference]: With dead ends: 4958 [2021-10-21 19:57:30,362 INFO L226 Difference]: Without dead ends: 1846 [2021-10-21 19:57:30,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:57:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2021-10-21 19:57:30,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1846. [2021-10-21 19:57:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1845 states have (on average 1.0601626016260162) internal successors, (1956), 1845 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:30,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 1956 transitions. [2021-10-21 19:57:30,413 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 1956 transitions. Word has length 218 [2021-10-21 19:57:30,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:30,413 INFO L470 AbstractCegarLoop]: Abstraction has 1846 states and 1956 transitions. [2021-10-21 19:57:30,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:30,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 1956 transitions. [2021-10-21 19:57:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-10-21 19:57:30,420 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:30,421 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:30,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:57:30,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-21 19:57:30,648 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:30,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:30,649 INFO L82 PathProgramCache]: Analyzing trace with hash 784485109, now seen corresponding path program 1 times [2021-10-21 19:57:30,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:30,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488756025] [2021-10-21 19:57:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:30,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-21 19:57:30,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:30,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488756025] [2021-10-21 19:57:30,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488756025] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:57:30,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110864692] [2021-10-21 19:57:30,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:30,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:57:30,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:57:30,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:57:30,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:57:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:30,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:57:31,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:57:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-21 19:57:31,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110864692] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:31,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:57:31,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-21 19:57:31,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788988433] [2021-10-21 19:57:31,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:31,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:31,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:31,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:57:31,729 INFO L87 Difference]: Start difference. First operand 1846 states and 1956 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:32,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:32,172 INFO L93 Difference]: Finished difference Result 3686 states and 3905 transitions. [2021-10-21 19:57:32,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:32,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 259 [2021-10-21 19:57:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:32,181 INFO L225 Difference]: With dead ends: 3686 [2021-10-21 19:57:32,182 INFO L226 Difference]: Without dead ends: 1420 [2021-10-21 19:57:32,185 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:57:32,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2021-10-21 19:57:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1420. [2021-10-21 19:57:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 1.0380549682875264) internal successors, (1473), 1419 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:32,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1473 transitions. [2021-10-21 19:57:32,226 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1473 transitions. Word has length 259 [2021-10-21 19:57:32,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:32,226 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 1473 transitions. [2021-10-21 19:57:32,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:32,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1473 transitions. [2021-10-21 19:57:32,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-10-21 19:57:32,260 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:57:32,260 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:57:32,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:57:32,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:57:32,480 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:57:32,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:57:32,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2080056846, now seen corresponding path program 1 times [2021-10-21 19:57:32,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:57:32,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252816352] [2021-10-21 19:57:32,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:57:32,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:57:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:57:32,594 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-10-21 19:57:32,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:57:32,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252816352] [2021-10-21 19:57:32,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252816352] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:57:32,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:57:32,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:57:32,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32571386] [2021-10-21 19:57:32,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:57:32,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:57:32,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:57:32,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:32,598 INFO L87 Difference]: Start difference. First operand 1420 states and 1473 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:33,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:57:33,030 INFO L93 Difference]: Finished difference Result 2975 states and 3089 transitions. [2021-10-21 19:57:33,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:57:33,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 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 280 [2021-10-21 19:57:33,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:57:33,031 INFO L225 Difference]: With dead ends: 2975 [2021-10-21 19:57:33,032 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:57:33,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:57:33,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:57:33,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:57:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:33,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:57:33,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2021-10-21 19:57:33,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:57:33,037 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:57:33,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:57:33,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:57:33,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:57:33,040 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:57:33,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 19:57:33,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:57:33,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:57:33,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:57:33,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:57:33,850 INFO L857 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,850 INFO L857 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,850 INFO L857 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,850 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-10-21 19:57:33,850 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-10-21 19:57:33,850 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-10-21 19:57:33,851 INFO L857 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-10-21 19:57:33,851 INFO L857 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-10-21 19:57:33,851 INFO L857 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-10-21 19:57:33,851 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-10-21 19:57:33,851 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-10-21 19:57:33,851 INFO L857 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,851 INFO L857 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,852 INFO L857 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,852 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-10-21 19:57:33,852 INFO L857 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-10-21 19:57:33,852 INFO L857 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-10-21 19:57:33,852 INFO L857 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-10-21 19:57:33,852 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-10-21 19:57:33,852 INFO L857 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,853 INFO L857 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,853 INFO L857 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,853 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-10-21 19:57:33,853 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-10-21 19:57:33,853 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-10-21 19:57:33,853 INFO L857 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-10-21 19:57:33,854 INFO L857 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-10-21 19:57:33,854 INFO L857 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-10-21 19:57:33,854 INFO L857 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-10-21 19:57:33,854 INFO L857 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-10-21 19:57:33,854 INFO L857 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-10-21 19:57:33,854 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-10-21 19:57:33,854 INFO L857 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,855 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,855 INFO L857 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,855 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-10-21 19:57:33,855 INFO L857 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-10-21 19:57:33,864 INFO L857 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-10-21 19:57:33,864 INFO L857 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-10-21 19:57:33,864 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-10-21 19:57:33,864 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-10-21 19:57:33,865 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-10-21 19:57:33,865 INFO L857 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,867 INFO L857 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,867 INFO L857 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,868 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-10-21 19:57:33,868 INFO L857 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-10-21 19:57:33,868 INFO L857 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-10-21 19:57:33,868 INFO L857 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-10-21 19:57:33,869 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-10-21 19:57:33,869 INFO L857 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-10-21 19:57:33,869 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-10-21 19:57:33,869 INFO L857 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,869 INFO L857 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,870 INFO L857 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,870 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-10-21 19:57:33,870 INFO L857 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-10-21 19:57:33,870 INFO L857 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-10-21 19:57:33,870 INFO L857 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-10-21 19:57:33,872 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-10-21 19:57:33,872 INFO L857 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,872 INFO L857 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,873 INFO L857 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,873 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-10-21 19:57:33,873 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-10-21 19:57:33,873 INFO L857 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-10-21 19:57:33,873 INFO L857 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-10-21 19:57:33,874 INFO L857 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-10-21 19:57:33,874 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-10-21 19:57:33,874 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-10-21 19:57:33,874 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-10-21 19:57:33,875 INFO L857 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,875 INFO L857 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,875 INFO L857 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,875 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-10-21 19:57:33,875 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:57:33,876 INFO L857 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-10-21 19:57:33,876 INFO L857 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-10-21 19:57:33,876 INFO L857 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-10-21 19:57:33,876 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-10-21 19:57:33,876 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-10-21 19:57:33,877 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-10-21 19:57:33,877 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-10-21 19:57:33,877 INFO L857 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,877 INFO L857 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,878 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,878 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-10-21 19:57:33,879 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-10-21 19:57:33,879 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-10-21 19:57:33,879 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-10-21 19:57:33,879 INFO L857 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-10-21 19:57:33,880 INFO L857 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-10-21 19:57:33,880 INFO L857 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-10-21 19:57:33,880 INFO L857 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-10-21 19:57:33,880 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-10-21 19:57:33,880 INFO L857 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,881 INFO L857 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,881 INFO L857 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,881 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-10-21 19:57:33,881 INFO L857 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-10-21 19:57:33,881 INFO L857 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-10-21 19:57:33,882 INFO L857 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-10-21 19:57:33,882 INFO L857 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-10-21 19:57:33,882 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-10-21 19:57:33,882 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:57:33,883 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 530) no Hoare annotation was computed. [2021-10-21 19:57:33,883 INFO L857 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,883 INFO L857 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,883 INFO L857 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,883 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-10-21 19:57:33,884 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-10-21 19:57:33,884 INFO L857 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-10-21 19:57:33,884 INFO L857 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-10-21 19:57:33,884 INFO L857 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-10-21 19:57:33,884 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-10-21 19:57:33,885 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-10-21 19:57:33,885 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-10-21 19:57:33,885 INFO L857 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,885 INFO L857 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,885 INFO L857 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,886 INFO L857 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-10-21 19:57:33,886 INFO L857 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-10-21 19:57:33,886 INFO L857 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-10-21 19:57:33,886 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-10-21 19:57:33,887 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-10-21 19:57:33,887 INFO L857 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,887 INFO L857 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,887 INFO L857 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,887 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-10-21 19:57:33,888 INFO L857 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-10-21 19:57:33,888 INFO L857 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-10-21 19:57:33,888 INFO L857 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-10-21 19:57:33,888 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-10-21 19:57:33,888 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-10-21 19:57:33,889 INFO L857 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-10-21 19:57:33,889 INFO L857 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-10-21 19:57:33,889 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-10-21 19:57:33,889 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-10-21 19:57:33,889 INFO L857 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-10-21 19:57:33,890 INFO L857 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,890 INFO L857 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,890 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-10-21 19:57:33,890 INFO L857 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-10-21 19:57:33,890 INFO L857 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-10-21 19:57:33,891 INFO L857 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-10-21 19:57:33,891 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-10-21 19:57:33,891 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-10-21 19:57:33,891 INFO L857 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-10-21 19:57:33,891 INFO L857 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-10-21 19:57:33,892 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-10-21 19:57:33,892 INFO L853 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse2 (= ~a19~0 1)) (.cse0 (= ~a25~0 1)) (.cse6 (<= ~a28~0 9)) (.cse9 (= ~a11~0 1))) (let ((.cse7 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0)) (.cse13 (or (and .cse0 .cse9 .cse2) (and .cse0 .cse6 .cse9)))) (let ((.cse11 (<= 10 ~a28~0)) (.cse3 (or (and .cse5 .cse9 .cse7) (and .cse5 .cse13))) (.cse4 (<= ~a19~0 0)) (.cse8 (= ~a17~0 8)) (.cse10 (= ~a21~0 1)) (.cse12 (<= ~a28~0 10)) (.cse1 (= ~a11~0 0)) (.cse14 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse7) (and .cse8 .cse9 .cse10 .cse2 .cse7) (and .cse11 .cse0 .cse1 .cse12 .cse4) (and .cse11 .cse3) (and .cse8 .cse10 .cse13 .cse2) (and .cse13 .cse14) (and .cse0 .cse1 .cse14 .cse4) (and .cse9 .cse7 .cse4) (and .cse1 .cse7 .cse4) (and .cse8 .cse5 .cse10 .cse1 .cse12 .cse2 .cse7) (and .cse1 .cse2 .cse14 .cse7))))) [2021-10-21 19:57:33,893 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,893 INFO L857 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,893 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-10-21 19:57:33,893 INFO L857 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-10-21 19:57:33,893 INFO L857 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-10-21 19:57:33,894 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-10-21 19:57:33,894 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-10-21 19:57:33,894 INFO L857 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-10-21 19:57:33,894 INFO L860 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-10-21 19:57:33,894 INFO L857 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,895 INFO L857 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,895 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-10-21 19:57:33,895 INFO L857 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-10-21 19:57:33,895 INFO L857 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-10-21 19:57:33,895 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-10-21 19:57:33,896 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-10-21 19:57:33,896 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-10-21 19:57:33,896 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-10-21 19:57:33,896 INFO L857 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-10-21 19:57:33,897 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-10-21 19:57:33,897 INFO L857 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,897 INFO L857 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,897 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-10-21 19:57:33,897 INFO L857 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-10-21 19:57:33,898 INFO L857 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-10-21 19:57:33,898 INFO L857 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-10-21 19:57:33,898 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:57:33,898 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-10-21 19:57:33,898 INFO L857 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-10-21 19:57:33,899 INFO L853 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse2 (= ~a19~0 1)) (.cse0 (= ~a25~0 1)) (.cse6 (<= ~a28~0 9)) (.cse9 (= ~a11~0 1))) (let ((.cse7 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0)) (.cse13 (or (and .cse0 .cse9 .cse2) (and .cse0 .cse6 .cse9)))) (let ((.cse11 (<= 10 ~a28~0)) (.cse3 (or (and .cse5 .cse9 .cse7) (and .cse5 .cse13))) (.cse4 (<= ~a19~0 0)) (.cse8 (= ~a17~0 8)) (.cse10 (= ~a21~0 1)) (.cse12 (<= ~a28~0 10)) (.cse1 (= ~a11~0 0)) (.cse14 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse7) (and .cse8 .cse9 .cse10 .cse2 .cse7) (and .cse11 .cse0 .cse1 .cse12 .cse4) (and .cse11 .cse3) (and .cse8 .cse10 .cse13 .cse2) (and .cse13 .cse14) (and .cse0 .cse1 .cse14 .cse4) (and .cse9 .cse7 .cse4) (and .cse1 .cse7 .cse4) (and .cse8 .cse5 .cse10 .cse1 .cse12 .cse2 .cse7) (and .cse1 .cse2 .cse14 .cse7))))) [2021-10-21 19:57:33,899 INFO L857 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,899 INFO L857 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,899 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-10-21 19:57:33,900 INFO L857 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-10-21 19:57:33,900 INFO L857 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-10-21 19:57:33,900 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-10-21 19:57:33,900 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-10-21 19:57:33,901 INFO L857 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,901 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,901 INFO L857 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-10-21 19:57:33,901 INFO L857 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-10-21 19:57:33,901 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-10-21 19:57:33,902 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-10-21 19:57:33,902 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-10-21 19:57:33,902 INFO L857 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-10-21 19:57:33,902 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-10-21 19:57:33,902 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-21 19:57:33,903 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-10-21 19:57:33,903 INFO L857 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,903 INFO L857 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,903 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-10-21 19:57:33,903 INFO L857 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,904 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:57:33,904 INFO L857 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-10-21 19:57:33,904 INFO L857 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-10-21 19:57:33,904 INFO L857 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-10-21 19:57:33,905 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-10-21 19:57:33,905 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-10-21 19:57:33,905 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-10-21 19:57:33,905 INFO L857 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,905 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,906 INFO L857 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,906 INFO L857 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-10-21 19:57:33,906 INFO L857 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-10-21 19:57:33,907 INFO L857 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-10-21 19:57:33,907 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-10-21 19:57:33,907 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-10-21 19:57:33,907 INFO L857 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,907 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,908 INFO L857 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:57:33,908 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-10-21 19:57:33,908 INFO L857 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-10-21 19:57:33,908 INFO L857 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-10-21 19:57:33,908 INFO L857 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-10-21 19:57:33,909 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-10-21 19:57:33,909 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-10-21 19:57:33,914 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:57:33,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:57:33 BoogieIcfgContainer [2021-10-21 19:57:33,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:57:33,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:57:33,976 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:57:33,977 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:57:33,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:57:20" (3/4) ... [2021-10-21 19:57:33,981 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:57:34,022 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 19:57:34,024 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:57:34,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:57:34,027 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:57:34,219 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:57:34,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:57:34,221 INFO L168 Benchmark]: Toolchain (without parser) took 16481.42 ms. Allocated memory was 90.2 MB in the beginning and 232.8 MB in the end (delta: 142.6 MB). Free memory was 54.1 MB in the beginning and 176.6 MB in the end (delta: -122.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:34,221 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory was 62.3 MB in the beginning and 62.3 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:57:34,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 883.34 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 53.9 MB in the beginning and 79.8 MB in the end (delta: -25.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:34,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.64 ms. Allocated memory is still 119.5 MB. Free memory was 79.8 MB in the beginning and 74.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:34,223 INFO L168 Benchmark]: Boogie Preprocessor took 97.75 ms. Allocated memory is still 119.5 MB. Free memory was 74.2 MB in the beginning and 70.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:34,223 INFO L168 Benchmark]: RCFGBuilder took 1637.13 ms. Allocated memory is still 119.5 MB. Free memory was 70.0 MB in the beginning and 69.2 MB in the end (delta: 790.6 kB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:34,224 INFO L168 Benchmark]: TraceAbstraction took 13461.74 ms. Allocated memory was 119.5 MB in the beginning and 232.8 MB in the end (delta: 113.2 MB). Free memory was 68.6 MB in the beginning and 191.3 MB in the end (delta: -122.7 MB). Peak memory consumption was 92.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:34,224 INFO L168 Benchmark]: Witness Printer took 243.00 ms. Allocated memory is still 232.8 MB. Free memory was 191.3 MB in the beginning and 176.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:34,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory was 62.3 MB in the beginning and 62.3 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 883.34 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 53.9 MB in the beginning and 79.8 MB in the end (delta: -25.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 145.64 ms. Allocated memory is still 119.5 MB. Free memory was 79.8 MB in the beginning and 74.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.75 ms. Allocated memory is still 119.5 MB. Free memory was 74.2 MB in the beginning and 70.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1637.13 ms. Allocated memory is still 119.5 MB. Free memory was 70.0 MB in the beginning and 69.2 MB in the end (delta: 790.6 kB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13461.74 ms. Allocated memory was 119.5 MB in the beginning and 232.8 MB in the end (delta: 113.2 MB). Free memory was 68.6 MB in the beginning and 191.3 MB in the end (delta: -122.7 MB). Peak memory consumption was 92.4 MB. Max. memory is 16.1 GB. * Witness Printer took 243.00 ms. Allocated memory is still 232.8 MB. Free memory was 191.3 MB in the beginning and 176.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 530]: 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, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13305.9ms, OverallIterations: 12, TraceHistogramMax: 6, EmptinessCheckTime: 134.5ms, AutomataDifference: 7462.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 807.7ms, InitialAbstractionConstructionTime: 23.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1567 SDtfs, 1976 SDslu, 221 SDs, 0 SdLazy, 4789 SolverSat, 842 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5067.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 511 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 80.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2410occurred in iteration=9, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 722.5ms AutomataMinimizationTime, 12 MinimizatonAttempts, 1454 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 51 NumberOfFragments, 527 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2398 FormulaSimplificationTreeSizeReduction, 155.9ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 802 FormulaSimplificationTreeSizeReductionInter, 641.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 251.9ms SsaConstructionTime, 591.3ms SatisfiabilityAnalysisTime, 2346.7ms InterpolantComputationTime, 2621 NumberOfCodeBlocks, 2621 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2607 ConstructedInterpolants, 0 QuantifiedInterpolants, 3956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 895 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 1594/1612 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: 616]: Loop Invariant Derived loop invariant: (((((((((((((a25 == 1 && a11 == 0) && a19 == 1) || ((((9 <= a28 && a11 == 1) && a25 <= 0) || (9 <= a28 && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)))) && a19 <= 0)) || ((((9 <= a28 && a28 <= 9) && a11 == 0) && a19 == 1) && a25 <= 0)) || ((((a17 == 8 && a11 == 1) && a21 == 1) && a19 == 1) && a25 <= 0)) || ((((10 <= a28 && a25 == 1) && a11 == 0) && a28 <= 10) && a19 <= 0)) || (10 <= a28 && (((9 <= a28 && a11 == 1) && a25 <= 0) || (9 <= a28 && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)))))) || (((a17 == 8 && a21 == 1) && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1))) && a19 == 1)) || ((((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)) && a28 <= 7)) || (((a25 == 1 && a11 == 0) && a28 <= 7) && a19 <= 0)) || ((a11 == 1 && a25 <= 0) && a19 <= 0)) || ((a11 == 0 && a25 <= 0) && a19 <= 0)) || ((((((a17 == 8 && 9 <= a28) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (((a11 == 0 && a19 == 1) && a28 <= 7) && a25 <= 0) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((((a25 == 1 && a11 == 0) && a19 == 1) || ((((9 <= a28 && a11 == 1) && a25 <= 0) || (9 <= a28 && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)))) && a19 <= 0)) || ((((9 <= a28 && a28 <= 9) && a11 == 0) && a19 == 1) && a25 <= 0)) || ((((a17 == 8 && a11 == 1) && a21 == 1) && a19 == 1) && a25 <= 0)) || ((((10 <= a28 && a25 == 1) && a11 == 0) && a28 <= 10) && a19 <= 0)) || (10 <= a28 && (((9 <= a28 && a11 == 1) && a25 <= 0) || (9 <= a28 && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)))))) || (((a17 == 8 && a21 == 1) && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1))) && a19 == 1)) || ((((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)) && a28 <= 7)) || (((a25 == 1 && a11 == 0) && a28 <= 7) && a19 <= 0)) || ((a11 == 1 && a25 <= 0) && a19 <= 0)) || ((a11 == 0 && a25 <= 0) && a19 <= 0)) || ((((((a17 == 8 && 9 <= a28) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (((a11 == 0 && a19 == 1) && a28 <= 7) && a25 <= 0) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:57:34,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2b9bf-a7f7-4dbc-b3a0-491080fe3955/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...