./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC --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 d8c37a616d9409c2c9154669238125a656fa2814 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:20:14,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:20:14,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:20:14,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:20:14,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:20:14,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:20:14,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:20:14,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:20:14,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:20:14,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:20:14,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:20:14,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:20:14,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:20:14,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:20:14,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:20:14,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:20:14,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:20:14,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:20:14,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:20:14,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:20:14,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:20:14,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:20:14,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:20:14,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:20:14,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:20:14,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:20:14,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:20:14,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:20:14,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:20:14,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:20:14,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:20:14,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:20:14,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:20:14,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:20:14,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:20:14,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:20:14,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:20:14,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:20:14,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:20:14,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:20:14,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:20:14,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:20:14,904 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:20:14,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:20:14,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:20:14,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:20:14,906 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:20:14,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:20:14,907 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:20:14,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:20:14,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:20:14,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:20:14,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:20:14,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:20:14,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:20:14,908 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:20:14,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:20:14,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:20:14,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:20:14,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:20:14,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:20:14,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:20:14,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:20:14,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:20:14,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:20:14,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:20:14,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:20:14,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:20:14,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:20:14,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:20:14,911 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_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8c37a616d9409c2c9154669238125a656fa2814 [2021-10-11 00:20:15,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:20:15,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:20:15,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:20:15,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:20:15,256 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:20:15,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-10-11 00:20:15,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/data/7e30e46df/35ae1f364b7c4c10bac3c9e587b50bc5/FLAGd2edc92ed [2021-10-11 00:20:16,065 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:20:16,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-10-11 00:20:16,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/data/7e30e46df/35ae1f364b7c4c10bac3c9e587b50bc5/FLAGd2edc92ed [2021-10-11 00:20:16,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/data/7e30e46df/35ae1f364b7c4c10bac3c9e587b50bc5 [2021-10-11 00:20:16,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:20:16,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:20:16,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:16,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:20:16,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:20:16,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12254ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16, skipping insertion in model container [2021-10-11 00:20:16,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:20:16,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:20:16,633 WARN L226 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_5fcda90c-0201-40aa-944b-0fb415e72bc7/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-10-11 00:20:16,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:16,933 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:20:16,960 WARN L226 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_5fcda90c-0201-40aa-944b-0fb415e72bc7/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-10-11 00:20:17,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:17,129 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:20:17,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17 WrapperNode [2021-10-11 00:20:17,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:17,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:17,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:20:17,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:20:17,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... [2021-10-11 00:20:17,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... [2021-10-11 00:20:17,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:17,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:20:17,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:20:17,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:20:17,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... [2021-10-11 00:20:17,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... [2021-10-11 00:20:17,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... [2021-10-11 00:20:17,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... [2021-10-11 00:20:17,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... [2021-10-11 00:20:17,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... [2021-10-11 00:20:17,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... [2021-10-11 00:20:17,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:20:17,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:20:17,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:20:17,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:20:17,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:20:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:20:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:20:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:20:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:20:19,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:20:19,305 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:20:19,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:19 BoogieIcfgContainer [2021-10-11 00:20:19,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:20:19,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:20:19,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:20:19,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:20:19,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:20:16" (1/3) ... [2021-10-11 00:20:19,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40abfb62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:19, skipping insertion in model container [2021-10-11 00:20:19,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:17" (2/3) ... [2021-10-11 00:20:19,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40abfb62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:19, skipping insertion in model container [2021-10-11 00:20:19,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:19" (3/3) ... [2021-10-11 00:20:19,336 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2021-10-11 00:20:19,353 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:20:19,358 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:20:19,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:20:19,432 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:20:19,432 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:20:19,433 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:20:19,434 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:20:19,434 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:20:19,434 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:20:19,434 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:20:19,434 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:20:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2021-10-11 00:20:19,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 00:20:19,474 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:19,475 INFO L422 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] [2021-10-11 00:20:19,476 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:19,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:19,483 INFO L82 PathProgramCache]: Analyzing trace with hash 678582746, now seen corresponding path program 1 times [2021-10-11 00:20:19,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:19,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206909631] [2021-10-11 00:20:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:19,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:19,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206909631] [2021-10-11 00:20:19,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:19,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:19,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405755510] [2021-10-11 00:20:19,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:19,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:19,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:19,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:19,897 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2021-10-11 00:20:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:21,204 INFO L93 Difference]: Finished difference Result 567 states and 981 transitions. [2021-10-11 00:20:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:21,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-10-11 00:20:21,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:21,235 INFO L225 Difference]: With dead ends: 567 [2021-10-11 00:20:21,235 INFO L226 Difference]: Without dead ends: 282 [2021-10-11 00:20:21,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-11 00:20:21,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-11 00:20:21,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2021-10-11 00:20:21,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2021-10-11 00:20:21,341 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 26 [2021-10-11 00:20:21,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:21,341 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2021-10-11 00:20:21,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:21,342 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2021-10-11 00:20:21,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-11 00:20:21,345 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:21,346 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:21,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:20:21,346 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:21,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:21,347 INFO L82 PathProgramCache]: Analyzing trace with hash 353948486, now seen corresponding path program 1 times [2021-10-11 00:20:21,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:21,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205443347] [2021-10-11 00:20:21,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:21,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205443347] [2021-10-11 00:20:21,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:21,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:21,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539383003] [2021-10-11 00:20:21,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:21,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:21,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:21,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:21,505 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2021-10-11 00:20:22,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:22,292 INFO L93 Difference]: Finished difference Result 840 states and 1291 transitions. [2021-10-11 00:20:22,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:22,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2021-10-11 00:20:22,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:22,299 INFO L225 Difference]: With dead ends: 840 [2021-10-11 00:20:22,299 INFO L226 Difference]: Without dead ends: 560 [2021-10-11 00:20:22,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:22,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-11 00:20:22,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-11 00:20:22,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2021-10-11 00:20:22,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2021-10-11 00:20:22,324 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 92 [2021-10-11 00:20:22,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:22,325 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2021-10-11 00:20:22,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2021-10-11 00:20:22,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-10-11 00:20:22,328 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:22,328 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:22,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:20:22,329 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:22,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:22,330 INFO L82 PathProgramCache]: Analyzing trace with hash -2005375015, now seen corresponding path program 1 times [2021-10-11 00:20:22,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:22,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791847179] [2021-10-11 00:20:22,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:22,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791847179] [2021-10-11 00:20:22,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:22,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:22,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289115109] [2021-10-11 00:20:22,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:22,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:22,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:22,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:22,555 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 3 states. [2021-10-11 00:20:23,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:23,405 INFO L93 Difference]: Finished difference Result 1257 states and 1672 transitions. [2021-10-11 00:20:23,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:23,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2021-10-11 00:20:23,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:23,417 INFO L225 Difference]: With dead ends: 1257 [2021-10-11 00:20:23,417 INFO L226 Difference]: Without dead ends: 699 [2021-10-11 00:20:23,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:23,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-10-11 00:20:23,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2021-10-11 00:20:23,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2021-10-11 00:20:23,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 904 transitions. [2021-10-11 00:20:23,443 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 904 transitions. Word has length 99 [2021-10-11 00:20:23,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:23,444 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 904 transitions. [2021-10-11 00:20:23,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:23,444 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 904 transitions. [2021-10-11 00:20:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-11 00:20:23,448 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:23,448 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:23,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:20:23,449 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:23,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:23,450 INFO L82 PathProgramCache]: Analyzing trace with hash 245006671, now seen corresponding path program 1 times [2021-10-11 00:20:23,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:23,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228165459] [2021-10-11 00:20:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:23,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228165459] [2021-10-11 00:20:23,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:23,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:23,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345778595] [2021-10-11 00:20:23,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:23,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:23,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:23,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:23,570 INFO L87 Difference]: Start difference. First operand 699 states and 904 transitions. Second operand 3 states. [2021-10-11 00:20:24,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:24,360 INFO L93 Difference]: Finished difference Result 1674 states and 2235 transitions. [2021-10-11 00:20:24,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:24,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2021-10-11 00:20:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:24,371 INFO L225 Difference]: With dead ends: 1674 [2021-10-11 00:20:24,371 INFO L226 Difference]: Without dead ends: 977 [2021-10-11 00:20:24,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-11 00:20:24,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-10-11 00:20:24,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2021-10-11 00:20:24,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1198 transitions. [2021-10-11 00:20:24,401 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1198 transitions. Word has length 103 [2021-10-11 00:20:24,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:24,402 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1198 transitions. [2021-10-11 00:20:24,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:24,402 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1198 transitions. [2021-10-11 00:20:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-11 00:20:24,404 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:24,405 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:24,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:20:24,405 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:24,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:24,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1205520650, now seen corresponding path program 1 times [2021-10-11 00:20:24,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:24,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946557473] [2021-10-11 00:20:24,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:24,522 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:24,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946557473] [2021-10-11 00:20:24,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:24,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:24,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176842878] [2021-10-11 00:20:24,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:24,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:24,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:24,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:24,526 INFO L87 Difference]: Start difference. First operand 977 states and 1198 transitions. Second operand 3 states. [2021-10-11 00:20:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:25,354 INFO L93 Difference]: Finished difference Result 2230 states and 2834 transitions. [2021-10-11 00:20:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:25,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2021-10-11 00:20:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:25,365 INFO L225 Difference]: With dead ends: 2230 [2021-10-11 00:20:25,365 INFO L226 Difference]: Without dead ends: 1394 [2021-10-11 00:20:25,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:25,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-11 00:20:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-10-11 00:20:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2021-10-11 00:20:25,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1712 transitions. [2021-10-11 00:20:25,406 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1712 transitions. Word has length 113 [2021-10-11 00:20:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:25,407 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1712 transitions. [2021-10-11 00:20:25,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:25,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1712 transitions. [2021-10-11 00:20:25,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-10-11 00:20:25,410 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:25,410 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:20:25,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:20:25,411 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:25,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:25,411 INFO L82 PathProgramCache]: Analyzing trace with hash -634496886, now seen corresponding path program 1 times [2021-10-11 00:20:25,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:25,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610961591] [2021-10-11 00:20:25,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-11 00:20:25,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610961591] [2021-10-11 00:20:25,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963990669] [2021-10-11 00:20:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:25,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:25,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:26,182 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-10-11 00:20:26,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:20:26,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-11 00:20:26,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948267392] [2021-10-11 00:20:26,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:26,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:26,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:26,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:20:26,188 INFO L87 Difference]: Start difference. First operand 1394 states and 1712 transitions. Second operand 3 states. [2021-10-11 00:20:27,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:27,139 INFO L93 Difference]: Finished difference Result 2230 states and 2689 transitions. [2021-10-11 00:20:27,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:27,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2021-10-11 00:20:27,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:27,162 INFO L225 Difference]: With dead ends: 2230 [2021-10-11 00:20:27,163 INFO L226 Difference]: Without dead ends: 2228 [2021-10-11 00:20:27,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:20:27,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-10-11 00:20:27,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1116. [2021-10-11 00:20:27,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2021-10-11 00:20:27,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1347 transitions. [2021-10-11 00:20:27,200 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1347 transitions. Word has length 174 [2021-10-11 00:20:27,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:27,202 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1347 transitions. [2021-10-11 00:20:27,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:27,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1347 transitions. [2021-10-11 00:20:27,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-10-11 00:20:27,206 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:27,214 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:27,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-11 00:20:27,429 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:27,429 INFO L82 PathProgramCache]: Analyzing trace with hash 302950818, now seen corresponding path program 1 times [2021-10-11 00:20:27,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:27,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969816680] [2021-10-11 00:20:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:27,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969816680] [2021-10-11 00:20:27,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:27,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:20:27,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363846488] [2021-10-11 00:20:27,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:20:27,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:27,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:20:27,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:20:27,772 INFO L87 Difference]: Start difference. First operand 1116 states and 1347 transitions. Second operand 7 states. [2021-10-11 00:20:28,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:28,530 INFO L93 Difference]: Finished difference Result 2146 states and 2603 transitions. [2021-10-11 00:20:28,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:20:28,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2021-10-11 00:20:28,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:28,540 INFO L225 Difference]: With dead ends: 2146 [2021-10-11 00:20:28,540 INFO L226 Difference]: Without dead ends: 1116 [2021-10-11 00:20:28,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:20:28,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-10-11 00:20:28,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-10-11 00:20:28,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2021-10-11 00:20:28,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1340 transitions. [2021-10-11 00:20:28,578 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1340 transitions. Word has length 179 [2021-10-11 00:20:28,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:28,578 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1340 transitions. [2021-10-11 00:20:28,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:20:28,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1340 transitions. [2021-10-11 00:20:28,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-10-11 00:20:28,582 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:28,583 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:28,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:20:28,583 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:28,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:28,584 INFO L82 PathProgramCache]: Analyzing trace with hash 24521800, now seen corresponding path program 1 times [2021-10-11 00:20:28,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:28,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909332249] [2021-10-11 00:20:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:28,801 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:28,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909332249] [2021-10-11 00:20:28,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:28,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:28,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152327422] [2021-10-11 00:20:28,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:28,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:28,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:28,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:28,806 INFO L87 Difference]: Start difference. First operand 1116 states and 1340 transitions. Second operand 3 states. [2021-10-11 00:20:29,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:29,621 INFO L93 Difference]: Finished difference Result 2369 states and 2912 transitions. [2021-10-11 00:20:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:29,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2021-10-11 00:20:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:29,630 INFO L225 Difference]: With dead ends: 2369 [2021-10-11 00:20:29,630 INFO L226 Difference]: Without dead ends: 1394 [2021-10-11 00:20:29,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:29,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-11 00:20:29,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2021-10-11 00:20:29,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2021-10-11 00:20:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1455 transitions. [2021-10-11 00:20:29,674 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1455 transitions. Word has length 215 [2021-10-11 00:20:29,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:29,675 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1455 transitions. [2021-10-11 00:20:29,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:29,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1455 transitions. [2021-10-11 00:20:29,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-10-11 00:20:29,680 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:29,680 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:29,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:20:29,681 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:29,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:29,681 INFO L82 PathProgramCache]: Analyzing trace with hash -625187495, now seen corresponding path program 1 times [2021-10-11 00:20:29,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:29,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37418821] [2021-10-11 00:20:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 24 proven. 125 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-11 00:20:30,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37418821] [2021-10-11 00:20:30,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464844832] [2021-10-11 00:20:30,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:30,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:30,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:30,878 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-11 00:20:30,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:20:30,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-10-11 00:20:30,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817105762] [2021-10-11 00:20:30,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:30,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:30,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:30,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:20:30,885 INFO L87 Difference]: Start difference. First operand 1255 states and 1455 transitions. Second operand 3 states. [2021-10-11 00:20:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:31,729 INFO L93 Difference]: Finished difference Result 2647 states and 3142 transitions. [2021-10-11 00:20:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:31,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2021-10-11 00:20:31,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:31,739 INFO L225 Difference]: With dead ends: 2647 [2021-10-11 00:20:31,739 INFO L226 Difference]: Without dead ends: 1533 [2021-10-11 00:20:31,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:20:31,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-10-11 00:20:31,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1394. [2021-10-11 00:20:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2021-10-11 00:20:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1609 transitions. [2021-10-11 00:20:31,790 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1609 transitions. Word has length 274 [2021-10-11 00:20:31,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:31,790 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1609 transitions. [2021-10-11 00:20:31,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1609 transitions. [2021-10-11 00:20:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-10-11 00:20:31,797 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:31,798 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:32,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:32,013 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:32,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:32,013 INFO L82 PathProgramCache]: Analyzing trace with hash -2053491023, now seen corresponding path program 1 times [2021-10-11 00:20:32,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:32,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973904949] [2021-10-11 00:20:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-11 00:20:32,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973904949] [2021-10-11 00:20:32,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:32,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:32,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615550948] [2021-10-11 00:20:32,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:32,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:32,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:32,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:32,298 INFO L87 Difference]: Start difference. First operand 1394 states and 1609 transitions. Second operand 3 states. [2021-10-11 00:20:33,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:33,119 INFO L93 Difference]: Finished difference Result 2647 states and 3073 transitions. [2021-10-11 00:20:33,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:33,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2021-10-11 00:20:33,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:33,130 INFO L225 Difference]: With dead ends: 2647 [2021-10-11 00:20:33,130 INFO L226 Difference]: Without dead ends: 1394 [2021-10-11 00:20:33,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:33,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-11 00:20:33,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2021-10-11 00:20:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2021-10-11 00:20:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1386 transitions. [2021-10-11 00:20:33,161 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1386 transitions. Word has length 325 [2021-10-11 00:20:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:33,162 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1386 transitions. [2021-10-11 00:20:33,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1386 transitions. [2021-10-11 00:20:33,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-10-11 00:20:33,170 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:33,171 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:20:33,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:20:33,171 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:33,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:33,173 INFO L82 PathProgramCache]: Analyzing trace with hash 130456481, now seen corresponding path program 1 times [2021-10-11 00:20:33,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:33,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344376520] [2021-10-11 00:20:33,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-10-11 00:20:33,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344376520] [2021-10-11 00:20:33,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:33,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:33,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213049978] [2021-10-11 00:20:33,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:33,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:33,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:33,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:33,465 INFO L87 Difference]: Start difference. First operand 1255 states and 1386 transitions. Second operand 3 states. [2021-10-11 00:20:34,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:34,306 INFO L93 Difference]: Finished difference Result 3203 states and 3560 transitions. [2021-10-11 00:20:34,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:34,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 327 [2021-10-11 00:20:34,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:34,321 INFO L225 Difference]: With dead ends: 3203 [2021-10-11 00:20:34,321 INFO L226 Difference]: Without dead ends: 2089 [2021-10-11 00:20:34,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2021-10-11 00:20:34,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2021-10-11 00:20:34,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2021-10-11 00:20:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2280 transitions. [2021-10-11 00:20:34,382 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2280 transitions. Word has length 327 [2021-10-11 00:20:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:34,383 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2280 transitions. [2021-10-11 00:20:34,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2280 transitions. [2021-10-11 00:20:34,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-10-11 00:20:34,393 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:34,394 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:34,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 00:20:34,395 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:34,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:34,395 INFO L82 PathProgramCache]: Analyzing trace with hash 98910853, now seen corresponding path program 1 times [2021-10-11 00:20:34,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:34,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478898965] [2021-10-11 00:20:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 17 proven. 54 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-10-11 00:20:34,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478898965] [2021-10-11 00:20:34,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437538292] [2021-10-11 00:20:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:35,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:35,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:35,690 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-10-11 00:20:35,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:20:35,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-11 00:20:35,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51058235] [2021-10-11 00:20:35,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:35,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:35,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:35,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:20:35,693 INFO L87 Difference]: Start difference. First operand 2089 states and 2280 transitions. Second operand 3 states. [2021-10-11 00:20:36,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:36,428 INFO L93 Difference]: Finished difference Result 4313 states and 4722 transitions. [2021-10-11 00:20:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:36,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 340 [2021-10-11 00:20:36,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:36,429 INFO L225 Difference]: With dead ends: 4313 [2021-10-11 00:20:36,429 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:20:36,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:20:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:20:36,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:20:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:20:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:20:36,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 340 [2021-10-11 00:20:36,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:36,444 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:20:36,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:36,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:20:36,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:20:36,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-11 00:20:36,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:20:37,038 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2021-10-11 00:20:37,292 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2021-10-11 00:20:37,295 INFO L262 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-11 00:20:37,296 INFO L262 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-11 00:20:37,296 INFO L262 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-11 00:20:37,296 INFO L262 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-11 00:20:37,296 INFO L262 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-11 00:20:37,296 INFO L262 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-11 00:20:37,296 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,296 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,297 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,297 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,297 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,298 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,298 INFO L262 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-11 00:20:37,299 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-11 00:20:37,299 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-11 00:20:37,299 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-11 00:20:37,299 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-11 00:20:37,299 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-11 00:20:37,299 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-11 00:20:37,299 INFO L262 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-11 00:20:37,300 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,301 INFO L262 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-11 00:20:37,302 INFO L262 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-11 00:20:37,303 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-11 00:20:37,304 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-11 00:20:37,305 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-11 00:20:37,305 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-11 00:20:37,305 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-11 00:20:37,305 INFO L262 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-11 00:20:37,305 INFO L262 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-11 00:20:37,305 INFO L262 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-11 00:20:37,305 INFO L262 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-11 00:20:37,306 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-11 00:20:37,307 INFO L258 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (= ~a10~0 0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and (<= 23 ~a1~0) .cse0 .cse1 .cse2) (and .cse0 (<= 4 ~a10~0) .cse2 .cse3) (and .cse0 (= ~a10~0 2) .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and (<= 9 ~a19~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~a19~0 6)) (and (= ~a10~0 1) .cse0 .cse2))) [2021-10-11 00:20:37,307 INFO L262 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-11 00:20:37,307 INFO L262 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-11 00:20:37,307 INFO L262 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-11 00:20:37,308 INFO L262 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-11 00:20:37,308 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,308 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,308 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,308 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,309 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,309 INFO L262 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-11 00:20:37,309 INFO L262 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-11 00:20:37,309 INFO L262 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-11 00:20:37,309 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-11 00:20:37,309 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-11 00:20:37,309 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-11 00:20:37,310 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-11 00:20:37,310 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-11 00:20:37,310 INFO L262 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-11 00:20:37,310 INFO L262 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-11 00:20:37,310 INFO L265 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-11 00:20:37,310 INFO L262 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-11 00:20:37,311 INFO L262 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-11 00:20:37,311 INFO L262 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-11 00:20:37,311 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:20:37,311 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,311 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,311 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,311 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,312 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,312 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-11 00:20:37,312 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-11 00:20:37,312 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-11 00:20:37,312 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-11 00:20:37,312 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-11 00:20:37,312 INFO L262 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-11 00:20:37,313 INFO L262 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-11 00:20:37,313 INFO L262 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-11 00:20:37,313 INFO L262 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-11 00:20:37,313 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,313 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,313 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,314 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,314 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:20:37,314 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,314 INFO L262 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-11 00:20:37,314 INFO L262 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-11 00:20:37,314 INFO L262 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-11 00:20:37,314 INFO L262 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-11 00:20:37,315 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-11 00:20:37,315 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-11 00:20:37,315 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-11 00:20:37,315 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-11 00:20:37,315 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-11 00:20:37,315 INFO L262 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-11 00:20:37,315 INFO L262 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-11 00:20:37,316 INFO L262 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-11 00:20:37,317 INFO L258 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (= ~a10~0 0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and (<= 23 ~a1~0) .cse0 .cse1 .cse2) (and .cse0 (<= 4 ~a10~0) .cse2 .cse3) (and .cse0 (= ~a10~0 2) .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and (<= 9 ~a19~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~a19~0 6)) (and (= ~a10~0 1) .cse0 .cse2))) [2021-10-11 00:20:37,318 INFO L262 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-11 00:20:37,318 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,318 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,318 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,318 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,318 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-11 00:20:37,319 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,320 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,320 INFO L262 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-11 00:20:37,320 INFO L262 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-11 00:20:37,320 INFO L262 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-11 00:20:37,320 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-11 00:20:37,320 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-11 00:20:37,321 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-11 00:20:37,321 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-11 00:20:37,321 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-11 00:20:37,321 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-11 00:20:37,321 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:20:37,321 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2021-10-11 00:20:37,321 INFO L262 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-11 00:20:37,323 INFO L262 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-11 00:20:37,323 INFO L262 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-11 00:20:37,323 INFO L262 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-11 00:20:37,323 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,324 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,324 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,324 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,324 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,324 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:37,324 INFO L262 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-11 00:20:37,324 INFO L262 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-11 00:20:37,325 INFO L262 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-11 00:20:37,325 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-11 00:20:37,325 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-11 00:20:37,325 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-11 00:20:37,325 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-11 00:20:37,325 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-11 00:20:37,326 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-11 00:20:37,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:20:37 BoogieIcfgContainer [2021-10-11 00:20:37,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:20:37,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:20:37,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:20:37,381 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:20:37,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:19" (3/4) ... [2021-10-11 00:20:37,385 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:20:37,423 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:20:37,425 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:20:37,426 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:20:37,428 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:20:37,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fcda90c-0201-40aa-944b-0fb415e72bc7/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:20:37,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:20:37,623 INFO L168 Benchmark]: Toolchain (without parser) took 21375.16 ms. Allocated memory was 98.6 MB in the beginning and 367.0 MB in the end (delta: 268.4 MB). Free memory was 58.1 MB in the beginning and 144.3 MB in the end (delta: -86.3 MB). Peak memory consumption was 182.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:37,624 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 76.0 MB in the end (delta: 51.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:37,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 871.74 ms. Allocated memory is still 98.6 MB. Free memory was 57.8 MB in the beginning and 56.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:37,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.58 ms. Allocated memory is still 98.6 MB. Free memory was 56.6 MB in the beginning and 48.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:37,626 INFO L168 Benchmark]: Boogie Preprocessor took 122.91 ms. Allocated memory is still 98.6 MB. Free memory was 48.8 MB in the beginning and 43.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:37,626 INFO L168 Benchmark]: RCFGBuilder took 1956.54 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 43.4 MB in the beginning and 88.8 MB in the end (delta: -45.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:37,627 INFO L168 Benchmark]: TraceAbstraction took 18054.51 ms. Allocated memory was 119.5 MB in the beginning and 367.0 MB in the end (delta: 247.5 MB). Free memory was 88.4 MB in the beginning and 159.0 MB in the end (delta: -70.6 MB). Peak memory consumption was 175.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:37,627 INFO L168 Benchmark]: Witness Printer took 240.46 ms. Allocated memory is still 367.0 MB. Free memory was 159.0 MB in the beginning and 144.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:37,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 76.0 MB in the end (delta: 51.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 871.74 ms. Allocated memory is still 98.6 MB. Free memory was 57.8 MB in the beginning and 56.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.58 ms. Allocated memory is still 98.6 MB. Free memory was 56.6 MB in the beginning and 48.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 122.91 ms. Allocated memory is still 98.6 MB. Free memory was 48.8 MB in the beginning and 43.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1956.54 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 43.4 MB in the beginning and 88.8 MB in the end (delta: -45.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18054.51 ms. Allocated memory was 119.5 MB in the beginning and 367.0 MB in the end (delta: 247.5 MB). Free memory was 88.4 MB in the beginning and 159.0 MB in the end (delta: -70.6 MB). Peak memory consumption was 175.2 MB. Max. memory is 16.1 GB. * Witness Printer took 240.46 ms. Allocated memory is still 367.0 MB. Free memory was 159.0 MB in the beginning and 144.3 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: - PositiveResult [Line: 92]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((((23 <= a1 && 14 == a4) && a10 == 0) && a12 == 0) || (((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((9 <= a19 && 14 == a4) && a10 == 0) && a12 == 0)) || (((14 == a4 && a10 == 0) && a12 == 0) && a19 <= 6)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((23 <= a1 && 14 == a4) && a10 == 0) && a12 == 0) || (((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((9 <= a19 && 14 == a4) && a10 == 0) && a12 == 0)) || (((14 == a4 && a10 == 0) && a12 == 0) && a19 <= 6)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.2s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1481 SDtfs, 1260 SDslu, 58 SDs, 0 SdLazy, 4551 SolverSat, 692 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 824 GetRequests, 800 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2089occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1529 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 179 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1148 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 130 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 3055 NumberOfCodeBlocks, 3055 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3040 ConstructedInterpolants, 0 QuantifiedInterpolants, 2721533 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1171 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 1953/2201 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...