./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD --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 f8fd8a7f4bc5b8a783328ea3ccb02a1c89ebaa08f4ab2de173aa0152f6877b7b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:51:17,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:51:17,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:51:17,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:51:17,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:51:17,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:51:17,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:51:17,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:51:17,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:51:17,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:51:17,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:51:17,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:51:17,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:51:17,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:51:17,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:51:17,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:51:17,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:51:17,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:51:17,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:51:17,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:51:17,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:51:17,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:51:17,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:51:17,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:51:17,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:51:17,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:51:17,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:51:17,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:51:17,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:51:17,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:51:17,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:51:17,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:51:17,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:51:17,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:51:17,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:51:17,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:51:17,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:51:17,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:51:17,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:51:17,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:51:17,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:51:17,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:51:17,603 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:51:17,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:51:17,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:51:17,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:51:17,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:51:17,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:51:17,607 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:51:17,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:51:17,607 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:51:17,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:51:17,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:51:17,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:51:17,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:51:17,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:51:17,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:51:17,610 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:51:17,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:51:17,611 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:51:17,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:51:17,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:51:17,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:51:17,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:51:17,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:51:17,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:51:17,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:51:17,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:51:17,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:51:17,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:51:17,614 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:51:17,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:51:17,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:51:17,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:51:17,616 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_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8fd8a7f4bc5b8a783328ea3ccb02a1c89ebaa08f4ab2de173aa0152f6877b7b [2021-10-28 22:51:17,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:51:17,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:51:17,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:51:17,984 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:51:17,985 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:51:17,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/eca-rers2012/Problem11_label40.c [2021-10-28 22:51:18,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/data/1f175fea2/542b9a9ec20d4b9893bc7bfbeb962171/FLAG5ad8cd644 [2021-10-28 22:51:18,802 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:51:18,803 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/sv-benchmarks/c/eca-rers2012/Problem11_label40.c [2021-10-28 22:51:18,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/data/1f175fea2/542b9a9ec20d4b9893bc7bfbeb962171/FLAG5ad8cd644 [2021-10-28 22:51:18,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/data/1f175fea2/542b9a9ec20d4b9893bc7bfbeb962171 [2021-10-28 22:51:18,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:51:18,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:51:18,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:18,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:51:18,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:51:18,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:18" (1/1) ... [2021-10-28 22:51:18,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cde11a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:18, skipping insertion in model container [2021-10-28 22:51:18,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:18" (1/1) ... [2021-10-28 22:51:19,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:51:19,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:51:19,321 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/sv-benchmarks/c/eca-rers2012/Problem11_label40.c[6409,6422] [2021-10-28 22:51:19,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:19,644 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:51:19,687 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/sv-benchmarks/c/eca-rers2012/Problem11_label40.c[6409,6422] [2021-10-28 22:51:19,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:19,885 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:51:19,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19 WrapperNode [2021-10-28 22:51:19,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:19,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:19,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:51:19,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:51:19,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:20,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:20,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:51:20,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:51:20,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:51:20,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:20,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:20,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:20,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:20,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:20,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:20,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:20,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:51:20,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:51:20,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:51:20,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:51:20,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:20,216 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:51:20,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:20,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:20,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:51:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:51:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:51:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:51:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:51:22,036 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:51:22,037 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 22:51:22,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:22 BoogieIcfgContainer [2021-10-28 22:51:22,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:51:22,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:51:22,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:51:22,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:51:22,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:51:18" (1/3) ... [2021-10-28 22:51:22,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d282de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:51:22, skipping insertion in model container [2021-10-28 22:51:22,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (2/3) ... [2021-10-28 22:51:22,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d282de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:51:22, skipping insertion in model container [2021-10-28 22:51:22,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:22" (3/3) ... [2021-10-28 22:51:22,056 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label40.c [2021-10-28 22:51:22,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:51:22,062 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 22:51:22,131 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:51:22,140 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:51:22,140 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 22:51:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:22,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 22:51:22,183 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:22,184 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:22,185 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:22,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash 626000386, now seen corresponding path program 1 times [2021-10-28 22:51:22,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:22,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378468916] [2021-10-28 22:51:22,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:22,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:22,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:22,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378468916] [2021-10-28 22:51:22,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378468916] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:22,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:22,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:51:22,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201875060] [2021-10-28 22:51:22,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:22,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:22,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:22,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:22,602 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:23,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:23,934 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-10-28 22:51:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:23,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-28 22:51:23,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:23,951 INFO L225 Difference]: With dead ends: 761 [2021-10-28 22:51:23,951 INFO L226 Difference]: Without dead ends: 413 [2021-10-28 22:51:23,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-10-28 22:51:24,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-10-28 22:51:24,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-10-28 22:51:24,017 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 44 [2021-10-28 22:51:24,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:24,018 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-10-28 22:51:24,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,018 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-10-28 22:51:24,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-10-28 22:51:24,023 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:24,023 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:24,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:51:24,024 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:24,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:24,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1200539258, now seen corresponding path program 1 times [2021-10-28 22:51:24,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:24,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469260790] [2021-10-28 22:51:24,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:24,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:24,144 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:24,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:24,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469260790] [2021-10-28 22:51:24,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469260790] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:24,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:24,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:51:24,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899070355] [2021-10-28 22:51:24,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:24,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:24,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:24,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:24,149 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:25,105 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-10-28 22:51:25,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:25,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-10-28 22:51:25,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:25,111 INFO L225 Difference]: With dead ends: 1211 [2021-10-28 22:51:25,111 INFO L226 Difference]: Without dead ends: 800 [2021-10-28 22:51:25,113 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:25,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-10-28 22:51:25,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-10-28 22:51:25,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3756345177664975) internal successors, (1084), 788 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2021-10-28 22:51:25,155 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 112 [2021-10-28 22:51:25,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:25,155 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2021-10-28 22:51:25,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,156 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2021-10-28 22:51:25,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-28 22:51:25,161 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:25,162 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:25,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:51:25,162 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:25,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:25,163 INFO L85 PathProgramCache]: Analyzing trace with hash -590739588, now seen corresponding path program 1 times [2021-10-28 22:51:25,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:25,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118044480] [2021-10-28 22:51:25,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:25,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:25,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:25,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118044480] [2021-10-28 22:51:25,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118044480] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:25,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:25,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:51:25,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113088950] [2021-10-28 22:51:25,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:25,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:25,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:25,288 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:26,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:26,152 INFO L93 Difference]: Finished difference Result 1945 states and 2614 transitions. [2021-10-28 22:51:26,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:26,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-10-28 22:51:26,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:26,160 INFO L225 Difference]: With dead ends: 1945 [2021-10-28 22:51:26,160 INFO L226 Difference]: Without dead ends: 1158 [2021-10-28 22:51:26,162 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:26,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-10-28 22:51:26,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2021-10-28 22:51:26,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2716262975778547) internal successors, (1470), 1156 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:26,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1470 transitions. [2021-10-28 22:51:26,202 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1470 transitions. Word has length 113 [2021-10-28 22:51:26,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:26,203 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1470 transitions. [2021-10-28 22:51:26,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:26,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1470 transitions. [2021-10-28 22:51:26,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-10-28 22:51:26,208 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:26,208 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:26,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 22:51:26,209 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:26,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:26,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1199532265, now seen corresponding path program 1 times [2021-10-28 22:51:26,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:26,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058547012] [2021-10-28 22:51:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:26,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:26,389 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:26,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:26,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058547012] [2021-10-28 22:51:26,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058547012] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:26,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:26,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:51:26,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297707187] [2021-10-28 22:51:26,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 22:51:26,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:26,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:51:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:51:26,400 INFO L87 Difference]: Start difference. First operand 1157 states and 1470 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:28,026 INFO L93 Difference]: Finished difference Result 3445 states and 4568 transitions. [2021-10-28 22:51:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 22:51:28,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-10-28 22:51:28,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:28,041 INFO L225 Difference]: With dead ends: 3445 [2021-10-28 22:51:28,041 INFO L226 Difference]: Without dead ends: 2474 [2021-10-28 22:51:28,043 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:51:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2021-10-28 22:51:28,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2473. [2021-10-28 22:51:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2472 states have (on average 1.287621359223301) internal successors, (3183), 2472 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3183 transitions. [2021-10-28 22:51:28,105 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3183 transitions. Word has length 171 [2021-10-28 22:51:28,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:28,106 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 3183 transitions. [2021-10-28 22:51:28,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3183 transitions. [2021-10-28 22:51:28,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-10-28 22:51:28,111 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:28,111 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:28,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 22:51:28,112 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:28,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:28,112 INFO L85 PathProgramCache]: Analyzing trace with hash -362773066, now seen corresponding path program 1 times [2021-10-28 22:51:28,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:28,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225246028] [2021-10-28 22:51:28,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:28,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:28,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:28,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225246028] [2021-10-28 22:51:28,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225246028] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:28,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:28,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:51:28,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365511406] [2021-10-28 22:51:28,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:28,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:28,248 INFO L87 Difference]: Start difference. First operand 2473 states and 3183 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:29,192 INFO L93 Difference]: Finished difference Result 5695 states and 7520 transitions. [2021-10-28 22:51:29,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:29,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2021-10-28 22:51:29,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:29,213 INFO L225 Difference]: With dead ends: 5695 [2021-10-28 22:51:29,213 INFO L226 Difference]: Without dead ends: 3592 [2021-10-28 22:51:29,216 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:29,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3592 states. [2021-10-28 22:51:29,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3592 to 3579. [2021-10-28 22:51:29,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 3578 states have (on average 1.252375628842929) internal successors, (4481), 3578 states have internal predecessors, (4481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 4481 transitions. [2021-10-28 22:51:29,310 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 4481 transitions. Word has length 224 [2021-10-28 22:51:29,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:29,310 INFO L470 AbstractCegarLoop]: Abstraction has 3579 states and 4481 transitions. [2021-10-28 22:51:29,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 4481 transitions. [2021-10-28 22:51:29,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-10-28 22:51:29,315 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:29,316 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:29,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 22:51:29,316 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:29,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:29,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1808781376, now seen corresponding path program 1 times [2021-10-28 22:51:29,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:29,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270700152] [2021-10-28 22:51:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:29,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:29,489 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-10-28 22:51:29,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:29,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270700152] [2021-10-28 22:51:29,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270700152] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:29,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:29,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:51:29,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900560830] [2021-10-28 22:51:29,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:29,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:29,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:29,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:29,499 INFO L87 Difference]: Start difference. First operand 3579 states and 4481 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:30,479 INFO L93 Difference]: Finished difference Result 7726 states and 9781 transitions. [2021-10-28 22:51:30,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:30,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-10-28 22:51:30,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:30,514 INFO L225 Difference]: With dead ends: 7726 [2021-10-28 22:51:30,514 INFO L226 Difference]: Without dead ends: 4517 [2021-10-28 22:51:30,519 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:30,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4517 states. [2021-10-28 22:51:30,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4517 to 4499. [2021-10-28 22:51:30,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 4498 states have (on average 1.240773677189862) internal successors, (5581), 4498 states have internal predecessors, (5581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 5581 transitions. [2021-10-28 22:51:30,636 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 5581 transitions. Word has length 225 [2021-10-28 22:51:30,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:30,637 INFO L470 AbstractCegarLoop]: Abstraction has 4499 states and 5581 transitions. [2021-10-28 22:51:30,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,638 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 5581 transitions. [2021-10-28 22:51:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-10-28 22:51:30,642 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:30,642 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:30,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 22:51:30,642 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:30,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:30,643 INFO L85 PathProgramCache]: Analyzing trace with hash -218901039, now seen corresponding path program 1 times [2021-10-28 22:51:30,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:30,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352865480] [2021-10-28 22:51:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:30,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:30,804 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-10-28 22:51:30,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:30,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352865480] [2021-10-28 22:51:30,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352865480] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:30,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:30,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:51:30,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971337896] [2021-10-28 22:51:30,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:30,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:30,808 INFO L87 Difference]: Start difference. First operand 4499 states and 5581 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:31,839 INFO L93 Difference]: Finished difference Result 9741 states and 12305 transitions. [2021-10-28 22:51:31,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:31,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2021-10-28 22:51:31,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:31,869 INFO L225 Difference]: With dead ends: 9741 [2021-10-28 22:51:31,870 INFO L226 Difference]: Without dead ends: 5612 [2021-10-28 22:51:31,875 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:31,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5612 states. [2021-10-28 22:51:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5612 to 5419. [2021-10-28 22:51:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 1.2331118493909192) internal successors, (6681), 5418 states have internal predecessors, (6681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 6681 transitions. [2021-10-28 22:51:32,008 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 6681 transitions. Word has length 226 [2021-10-28 22:51:32,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:32,009 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 6681 transitions. [2021-10-28 22:51:32,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 6681 transitions. [2021-10-28 22:51:32,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-28 22:51:32,014 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:32,014 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-28 22:51:32,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 22:51:32,015 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:32,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:32,015 INFO L85 PathProgramCache]: Analyzing trace with hash -25691425, now seen corresponding path program 1 times [2021-10-28 22:51:32,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:32,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104068389] [2021-10-28 22:51:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:32,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-10-28 22:51:32,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:32,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104068389] [2021-10-28 22:51:32,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104068389] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:32,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203097354] [2021-10-28 22:51:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:32,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:32,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:32,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:51:32,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 22:51:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:32,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:51:32,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-10-28 22:51:34,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203097354] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:34,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:51:34,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-28 22:51:34,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034423410] [2021-10-28 22:51:34,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 22:51:34,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:34,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:51:34,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:51:34,507 INFO L87 Difference]: Start difference. First operand 5419 states and 6681 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:36,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:36,189 INFO L93 Difference]: Finished difference Result 11779 states and 14816 transitions. [2021-10-28 22:51:36,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 22:51:36,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2021-10-28 22:51:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:36,232 INFO L225 Difference]: With dead ends: 11779 [2021-10-28 22:51:36,232 INFO L226 Difference]: Without dead ends: 7656 [2021-10-28 22:51:36,237 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 244 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:51:36,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7656 states. [2021-10-28 22:51:36,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7656 to 7285. [2021-10-28 22:51:36,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7285 states, 7284 states have (on average 1.2225425590334982) internal successors, (8905), 7284 states have internal predecessors, (8905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:36,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7285 states to 7285 states and 8905 transitions. [2021-10-28 22:51:36,412 INFO L78 Accepts]: Start accepts. Automaton has 7285 states and 8905 transitions. Word has length 246 [2021-10-28 22:51:36,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:36,412 INFO L470 AbstractCegarLoop]: Abstraction has 7285 states and 8905 transitions. [2021-10-28 22:51:36,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7285 states and 8905 transitions. [2021-10-28 22:51:36,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-10-28 22:51:36,418 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:36,419 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:36,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:36,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:36,632 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:36,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:36,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1612832131, now seen corresponding path program 1 times [2021-10-28 22:51:36,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:36,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534742587] [2021-10-28 22:51:36,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:36,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:36,765 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-28 22:51:36,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:36,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534742587] [2021-10-28 22:51:36,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534742587] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:36,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:36,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:51:36,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881917434] [2021-10-28 22:51:36,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:36,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:36,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:36,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:36,776 INFO L87 Difference]: Start difference. First operand 7285 states and 8905 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:37,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:37,689 INFO L93 Difference]: Finished difference Result 17141 states and 21218 transitions. [2021-10-28 22:51:37,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:37,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2021-10-28 22:51:37,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:37,733 INFO L225 Difference]: With dead ends: 17141 [2021-10-28 22:51:37,733 INFO L226 Difference]: Without dead ends: 10226 [2021-10-28 22:51:37,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:37,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10226 states. [2021-10-28 22:51:37,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10226 to 8935. [2021-10-28 22:51:37,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8935 states, 8934 states have (on average 1.1906201029773897) internal successors, (10637), 8934 states have internal predecessors, (10637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:37,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8935 states to 8935 states and 10637 transitions. [2021-10-28 22:51:37,936 INFO L78 Accepts]: Start accepts. Automaton has 8935 states and 10637 transitions. Word has length 247 [2021-10-28 22:51:37,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:37,936 INFO L470 AbstractCegarLoop]: Abstraction has 8935 states and 10637 transitions. [2021-10-28 22:51:37,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:37,937 INFO L276 IsEmpty]: Start isEmpty. Operand 8935 states and 10637 transitions. [2021-10-28 22:51:37,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-10-28 22:51:37,943 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:37,943 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-28 22:51:37,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 22:51:37,944 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:37,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:37,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1131175066, now seen corresponding path program 1 times [2021-10-28 22:51:37,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:37,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853288627] [2021-10-28 22:51:37,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:37,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-10-28 22:51:38,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:38,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853288627] [2021-10-28 22:51:38,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853288627] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:38,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:38,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:51:38,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431995055] [2021-10-28 22:51:38,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:38,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:38,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:38,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:38,123 INFO L87 Difference]: Start difference. First operand 8935 states and 10637 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:39,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:39,140 INFO L93 Difference]: Finished difference Result 18064 states and 21487 transitions. [2021-10-28 22:51:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:39,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-10-28 22:51:39,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:39,160 INFO L225 Difference]: With dead ends: 18064 [2021-10-28 22:51:39,160 INFO L226 Difference]: Without dead ends: 9315 [2021-10-28 22:51:39,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:39,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9315 states. [2021-10-28 22:51:39,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9315 to 8934. [2021-10-28 22:51:39,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8934 states, 8933 states have (on average 1.1605283779245494) internal successors, (10367), 8933 states have internal predecessors, (10367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8934 states to 8934 states and 10367 transitions. [2021-10-28 22:51:39,335 INFO L78 Accepts]: Start accepts. Automaton has 8934 states and 10367 transitions. Word has length 253 [2021-10-28 22:51:39,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:39,336 INFO L470 AbstractCegarLoop]: Abstraction has 8934 states and 10367 transitions. [2021-10-28 22:51:39,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:39,336 INFO L276 IsEmpty]: Start isEmpty. Operand 8934 states and 10367 transitions. [2021-10-28 22:51:39,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-10-28 22:51:39,346 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:39,346 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:39,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 22:51:39,347 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:39,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:39,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1228705051, now seen corresponding path program 1 times [2021-10-28 22:51:39,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:39,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639041764] [2021-10-28 22:51:39,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:39,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-10-28 22:51:39,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:39,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639041764] [2021-10-28 22:51:39,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639041764] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:39,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:39,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:51:39,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692736930] [2021-10-28 22:51:39,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:39,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:39,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:39,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:39,536 INFO L87 Difference]: Start difference. First operand 8934 states and 10367 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:40,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:40,375 INFO L93 Difference]: Finished difference Result 20074 states and 23254 transitions. [2021-10-28 22:51:40,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:40,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 311 [2021-10-28 22:51:40,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:40,400 INFO L225 Difference]: With dead ends: 20074 [2021-10-28 22:51:40,401 INFO L226 Difference]: Without dead ends: 11510 [2021-10-28 22:51:40,412 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:40,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2021-10-28 22:51:40,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 10406. [2021-10-28 22:51:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10406 states, 10405 states have (on average 1.144738106679481) internal successors, (11911), 10405 states have internal predecessors, (11911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10406 states to 10406 states and 11911 transitions. [2021-10-28 22:51:40,651 INFO L78 Accepts]: Start accepts. Automaton has 10406 states and 11911 transitions. Word has length 311 [2021-10-28 22:51:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:40,652 INFO L470 AbstractCegarLoop]: Abstraction has 10406 states and 11911 transitions. [2021-10-28 22:51:40,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:40,652 INFO L276 IsEmpty]: Start isEmpty. Operand 10406 states and 11911 transitions. [2021-10-28 22:51:40,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-10-28 22:51:40,663 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:40,663 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:40,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 22:51:40,664 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:40,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:40,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2112552161, now seen corresponding path program 1 times [2021-10-28 22:51:40,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:40,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264805904] [2021-10-28 22:51:40,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:40,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-10-28 22:51:40,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:40,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264805904] [2021-10-28 22:51:40,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264805904] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:40,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:40,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 22:51:40,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046275063] [2021-10-28 22:51:40,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 22:51:40,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:40,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:51:40,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:51:40,844 INFO L87 Difference]: Start difference. First operand 10406 states and 11911 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:42,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:42,506 INFO L93 Difference]: Finished difference Result 24330 states and 28178 transitions. [2021-10-28 22:51:42,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 22:51:42,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 315 [2021-10-28 22:51:42,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:42,534 INFO L225 Difference]: With dead ends: 24330 [2021-10-28 22:51:42,535 INFO L226 Difference]: Without dead ends: 16148 [2021-10-28 22:51:42,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:51:42,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16148 states. [2021-10-28 22:51:42,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16148 to 13183. [2021-10-28 22:51:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13182 states have (on average 1.146184190562889) internal successors, (15109), 13182 states have internal predecessors, (15109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:42,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 15109 transitions. [2021-10-28 22:51:42,836 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 15109 transitions. Word has length 315 [2021-10-28 22:51:42,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:42,837 INFO L470 AbstractCegarLoop]: Abstraction has 13183 states and 15109 transitions. [2021-10-28 22:51:42,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:42,837 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 15109 transitions. [2021-10-28 22:51:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-10-28 22:51:42,852 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:42,852 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:42,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 22:51:42,853 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:42,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:42,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1789202988, now seen corresponding path program 1 times [2021-10-28 22:51:42,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:42,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813966265] [2021-10-28 22:51:42,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:42,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-28 22:51:43,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:43,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813966265] [2021-10-28 22:51:43,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813966265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:43,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:43,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:51:43,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017414933] [2021-10-28 22:51:43,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:43,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:43,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:43,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:43,038 INFO L87 Difference]: Start difference. First operand 13183 states and 15109 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:43,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:43,862 INFO L93 Difference]: Finished difference Result 32466 states and 37286 transitions. [2021-10-28 22:51:43,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:43,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 328 [2021-10-28 22:51:43,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:43,905 INFO L225 Difference]: With dead ends: 32466 [2021-10-28 22:51:43,905 INFO L226 Difference]: Without dead ends: 19653 [2021-10-28 22:51:43,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:43,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19653 states. [2021-10-28 22:51:44,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19653 to 19284. [2021-10-28 22:51:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19284 states, 19283 states have (on average 1.1299071721205207) internal successors, (21788), 19283 states have internal predecessors, (21788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19284 states to 19284 states and 21788 transitions. [2021-10-28 22:51:44,322 INFO L78 Accepts]: Start accepts. Automaton has 19284 states and 21788 transitions. Word has length 328 [2021-10-28 22:51:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:44,323 INFO L470 AbstractCegarLoop]: Abstraction has 19284 states and 21788 transitions. [2021-10-28 22:51:44,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 19284 states and 21788 transitions. [2021-10-28 22:51:44,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-10-28 22:51:44,345 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:44,346 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:44,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 22:51:44,347 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:44,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:44,348 INFO L85 PathProgramCache]: Analyzing trace with hash -372665255, now seen corresponding path program 1 times [2021-10-28 22:51:44,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:44,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501300431] [2021-10-28 22:51:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:44,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:44,638 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-28 22:51:44,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:44,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501300431] [2021-10-28 22:51:44,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501300431] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:44,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:44,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:51:44,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949926639] [2021-10-28 22:51:44,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 22:51:44,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:44,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:51:44,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:51:44,642 INFO L87 Difference]: Start difference. First operand 19284 states and 21788 transitions. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:46,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:46,271 INFO L93 Difference]: Finished difference Result 49452 states and 56111 transitions. [2021-10-28 22:51:46,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 22:51:46,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 336 [2021-10-28 22:51:46,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:46,315 INFO L225 Difference]: With dead ends: 49452 [2021-10-28 22:51:46,315 INFO L226 Difference]: Without dead ends: 30538 [2021-10-28 22:51:46,328 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:51:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30538 states. [2021-10-28 22:51:46,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30538 to 29601. [2021-10-28 22:51:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29601 states, 29600 states have (on average 1.1254391891891893) internal successors, (33313), 29600 states have internal predecessors, (33313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:46,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29601 states to 29601 states and 33313 transitions. [2021-10-28 22:51:46,906 INFO L78 Accepts]: Start accepts. Automaton has 29601 states and 33313 transitions. Word has length 336 [2021-10-28 22:51:46,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:46,907 INFO L470 AbstractCegarLoop]: Abstraction has 29601 states and 33313 transitions. [2021-10-28 22:51:46,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:46,907 INFO L276 IsEmpty]: Start isEmpty. Operand 29601 states and 33313 transitions. [2021-10-28 22:51:46,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-10-28 22:51:46,925 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:46,926 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:46,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 22:51:46,926 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:46,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:46,927 INFO L85 PathProgramCache]: Analyzing trace with hash -106761509, now seen corresponding path program 1 times [2021-10-28 22:51:46,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:46,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046338204] [2021-10-28 22:51:46,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:46,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:47,346 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-28 22:51:47,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:47,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046338204] [2021-10-28 22:51:47,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046338204] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:47,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:47,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 22:51:47,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849567815] [2021-10-28 22:51:47,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 22:51:47,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:47,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:51:47,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:51:47,355 INFO L87 Difference]: Start difference. First operand 29601 states and 33313 transitions. Second operand has 5 states, 5 states have (on average 51.6) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:49,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:49,249 INFO L93 Difference]: Finished difference Result 65677 states and 74132 transitions. [2021-10-28 22:51:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:51:49,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.6) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 338 [2021-10-28 22:51:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:49,306 INFO L225 Difference]: With dead ends: 65677 [2021-10-28 22:51:49,307 INFO L226 Difference]: Without dead ends: 41065 [2021-10-28 22:51:49,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:51:49,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41065 states. [2021-10-28 22:51:49,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41065 to 26455. [2021-10-28 22:51:49,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26455 states, 26454 states have (on average 1.1225523550313752) internal successors, (29696), 26454 states have internal predecessors, (29696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26455 states to 26455 states and 29696 transitions. [2021-10-28 22:51:49,878 INFO L78 Accepts]: Start accepts. Automaton has 26455 states and 29696 transitions. Word has length 338 [2021-10-28 22:51:49,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:49,879 INFO L470 AbstractCegarLoop]: Abstraction has 26455 states and 29696 transitions. [2021-10-28 22:51:49,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.6) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:49,879 INFO L276 IsEmpty]: Start isEmpty. Operand 26455 states and 29696 transitions. [2021-10-28 22:51:49,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-10-28 22:51:49,895 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:49,895 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:49,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 22:51:49,896 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:49,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:49,897 INFO L85 PathProgramCache]: Analyzing trace with hash -126252397, now seen corresponding path program 1 times [2021-10-28 22:51:49,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:49,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881648926] [2021-10-28 22:51:49,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:49,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-28 22:51:50,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:50,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881648926] [2021-10-28 22:51:50,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881648926] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:50,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:50,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:51:50,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970963613] [2021-10-28 22:51:50,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:50,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:50,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:50,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:50,180 INFO L87 Difference]: Start difference. First operand 26455 states and 29696 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:51,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:51,194 INFO L93 Difference]: Finished difference Result 51243 states and 57484 transitions. [2021-10-28 22:51:51,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:51,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342 [2021-10-28 22:51:51,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:51,227 INFO L225 Difference]: With dead ends: 51243 [2021-10-28 22:51:51,228 INFO L226 Difference]: Without dead ends: 25158 [2021-10-28 22:51:51,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:51,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25158 states. [2021-10-28 22:51:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25158 to 23685. [2021-10-28 22:51:51,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23685 states, 23684 states have (on average 1.1083009626752238) internal successors, (26249), 23684 states have internal predecessors, (26249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:51,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23685 states to 23685 states and 26249 transitions. [2021-10-28 22:51:51,718 INFO L78 Accepts]: Start accepts. Automaton has 23685 states and 26249 transitions. Word has length 342 [2021-10-28 22:51:51,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:51,719 INFO L470 AbstractCegarLoop]: Abstraction has 23685 states and 26249 transitions. [2021-10-28 22:51:51,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:51,719 INFO L276 IsEmpty]: Start isEmpty. Operand 23685 states and 26249 transitions. [2021-10-28 22:51:51,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-10-28 22:51:51,733 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:51,733 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:51,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 22:51:51,734 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:51,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:51,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1461205337, now seen corresponding path program 1 times [2021-10-28 22:51:51,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:51,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317726610] [2021-10-28 22:51:51,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:51,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:51,902 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-28 22:51:51,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:51,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317726610] [2021-10-28 22:51:51,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317726610] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:51,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:51,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 22:51:51,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769393980] [2021-10-28 22:51:51,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 22:51:51,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:51,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:51:51,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:51:51,906 INFO L87 Difference]: Start difference. First operand 23685 states and 26249 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:53,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:53,493 INFO L93 Difference]: Finished difference Result 51981 states and 57582 transitions. [2021-10-28 22:51:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 22:51:53,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 351 [2021-10-28 22:51:53,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:53,521 INFO L225 Difference]: With dead ends: 51981 [2021-10-28 22:51:53,521 INFO L226 Difference]: Without dead ends: 32551 [2021-10-28 22:51:53,534 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:51:53,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32551 states. [2021-10-28 22:51:53,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32551 to 31813. [2021-10-28 22:51:53,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31813 states, 31812 states have (on average 1.1055262165220672) internal successors, (35169), 31812 states have internal predecessors, (35169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31813 states to 31813 states and 35169 transitions. [2021-10-28 22:51:53,980 INFO L78 Accepts]: Start accepts. Automaton has 31813 states and 35169 transitions. Word has length 351 [2021-10-28 22:51:53,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:53,981 INFO L470 AbstractCegarLoop]: Abstraction has 31813 states and 35169 transitions. [2021-10-28 22:51:53,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 31813 states and 35169 transitions. [2021-10-28 22:51:54,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-10-28 22:51:54,004 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:54,005 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-28 22:51:54,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 22:51:54,005 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:54,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:54,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1330285845, now seen corresponding path program 1 times [2021-10-28 22:51:54,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:54,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985917850] [2021-10-28 22:51:54,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:54,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 177 proven. 137 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-28 22:51:54,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:54,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985917850] [2021-10-28 22:51:54,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985917850] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:54,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460537484] [2021-10-28 22:51:54,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:54,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:54,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:54,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:51:54,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 22:51:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:54,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:51:54,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:55,365 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2021-10-28 22:51:55,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460537484] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:55,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 22:51:55,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-28 22:51:55,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734375291] [2021-10-28 22:51:55,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:55,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:55,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:55,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:51:55,368 INFO L87 Difference]: Start difference. First operand 31813 states and 35169 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:56,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:56,170 INFO L93 Difference]: Finished difference Result 58815 states and 65112 transitions. [2021-10-28 22:51:56,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:56,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2021-10-28 22:51:56,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:56,202 INFO L225 Difference]: With dead ends: 58815 [2021-10-28 22:51:56,202 INFO L226 Difference]: Without dead ends: 31257 [2021-10-28 22:51:56,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:51:56,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31257 states. [2021-10-28 22:51:56,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31257 to 30704. [2021-10-28 22:51:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30704 states, 30703 states have (on average 1.1011627528254568) internal successors, (33809), 30703 states have internal predecessors, (33809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30704 states to 30704 states and 33809 transitions. [2021-10-28 22:51:56,691 INFO L78 Accepts]: Start accepts. Automaton has 30704 states and 33809 transitions. Word has length 393 [2021-10-28 22:51:56,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:56,691 INFO L470 AbstractCegarLoop]: Abstraction has 30704 states and 33809 transitions. [2021-10-28 22:51:56,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:56,691 INFO L276 IsEmpty]: Start isEmpty. Operand 30704 states and 33809 transitions. [2021-10-28 22:51:56,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-10-28 22:51:56,713 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:56,714 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:56,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:56,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 22:51:56,941 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:56,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1559812086, now seen corresponding path program 1 times [2021-10-28 22:51:56,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:56,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729761554] [2021-10-28 22:51:56,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:56,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:57,133 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-10-28 22:51:57,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:57,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729761554] [2021-10-28 22:51:57,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729761554] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:57,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:57,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:51:57,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189603841] [2021-10-28 22:51:57,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:57,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:57,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:57,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:57,138 INFO L87 Difference]: Start difference. First operand 30704 states and 33809 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 2 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:58,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:58,015 INFO L93 Difference]: Finished difference Result 55285 states and 60823 transitions. [2021-10-28 22:51:58,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:58,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 2 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 416 [2021-10-28 22:51:58,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:58,045 INFO L225 Difference]: With dead ends: 55285 [2021-10-28 22:51:58,045 INFO L226 Difference]: Without dead ends: 27165 [2021-10-28 22:51:58,055 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:58,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2021-10-28 22:51:58,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 24933. [2021-10-28 22:51:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24933 states, 24932 states have (on average 1.0950986683779882) internal successors, (27303), 24932 states have internal predecessors, (27303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24933 states to 24933 states and 27303 transitions. [2021-10-28 22:51:58,479 INFO L78 Accepts]: Start accepts. Automaton has 24933 states and 27303 transitions. Word has length 416 [2021-10-28 22:51:58,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:58,479 INFO L470 AbstractCegarLoop]: Abstraction has 24933 states and 27303 transitions. [2021-10-28 22:51:58,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 2 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 24933 states and 27303 transitions. [2021-10-28 22:51:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-10-28 22:51:58,494 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:58,495 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:58,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 22:51:58,495 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:51:58,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:58,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1403571918, now seen corresponding path program 1 times [2021-10-28 22:51:58,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:58,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214277260] [2021-10-28 22:51:58,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:58,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:59,008 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 189 proven. 239 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:59,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:59,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214277260] [2021-10-28 22:51:59,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214277260] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:59,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500273130] [2021-10-28 22:51:59,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:59,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:59,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:59,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:51:59,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 22:51:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:59,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:51:59,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:52:00,960 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-28 22:52:00,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500273130] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:00,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 22:52:00,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-10-28 22:52:00,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680460434] [2021-10-28 22:52:00,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:52:00,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:00,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:52:00,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 22:52:00,965 INFO L87 Difference]: Start difference. First operand 24933 states and 27303 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:01,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:52:01,657 INFO L93 Difference]: Finished difference Result 51166 states and 56089 transitions. [2021-10-28 22:52:01,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:52:01,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 440 [2021-10-28 22:52:01,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:52:01,694 INFO L225 Difference]: With dead ends: 51166 [2021-10-28 22:52:01,694 INFO L226 Difference]: Without dead ends: 28266 [2021-10-28 22:52:01,707 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 22:52:01,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28266 states. [2021-10-28 22:52:02,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28266 to 26971. [2021-10-28 22:52:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26971 states, 26970 states have (on average 1.0886169818316649) internal successors, (29360), 26970 states have internal predecessors, (29360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26971 states to 26971 states and 29360 transitions. [2021-10-28 22:52:02,100 INFO L78 Accepts]: Start accepts. Automaton has 26971 states and 29360 transitions. Word has length 440 [2021-10-28 22:52:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:52:02,100 INFO L470 AbstractCegarLoop]: Abstraction has 26971 states and 29360 transitions. [2021-10-28 22:52:02,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 26971 states and 29360 transitions. [2021-10-28 22:52:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2021-10-28 22:52:02,112 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:52:02,113 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:02,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:52:02,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:52:02,316 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:52:02,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:02,316 INFO L85 PathProgramCache]: Analyzing trace with hash -679450827, now seen corresponding path program 1 times [2021-10-28 22:52:02,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:02,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758614875] [2021-10-28 22:52:02,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:02,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:02,504 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-10-28 22:52:02,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:02,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758614875] [2021-10-28 22:52:02,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758614875] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:02,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:02,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:52:02,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171999180] [2021-10-28 22:52:02,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:52:02,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:02,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:52:02,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:52:02,507 INFO L87 Difference]: Start difference. First operand 26971 states and 29360 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:03,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:52:03,414 INFO L93 Difference]: Finished difference Result 53004 states and 57743 transitions. [2021-10-28 22:52:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:52:03,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 441 [2021-10-28 22:52:03,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:52:03,443 INFO L225 Difference]: With dead ends: 53004 [2021-10-28 22:52:03,443 INFO L226 Difference]: Without dead ends: 28988 [2021-10-28 22:52:03,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:52:03,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28988 states. [2021-10-28 22:52:03,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28988 to 20144. [2021-10-28 22:52:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20144 states, 20143 states have (on average 1.0923397706399245) internal successors, (22003), 20143 states have internal predecessors, (22003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20144 states to 20144 states and 22003 transitions. [2021-10-28 22:52:03,753 INFO L78 Accepts]: Start accepts. Automaton has 20144 states and 22003 transitions. Word has length 441 [2021-10-28 22:52:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:52:03,754 INFO L470 AbstractCegarLoop]: Abstraction has 20144 states and 22003 transitions. [2021-10-28 22:52:03,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 20144 states and 22003 transitions. [2021-10-28 22:52:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2021-10-28 22:52:03,772 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:52:03,772 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:03,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 22:52:03,773 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:52:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:03,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1008492538, now seen corresponding path program 1 times [2021-10-28 22:52:03,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:03,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533206517] [2021-10-28 22:52:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:03,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:04,049 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2021-10-28 22:52:04,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:04,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533206517] [2021-10-28 22:52:04,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533206517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:04,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:04,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:52:04,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313997196] [2021-10-28 22:52:04,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:52:04,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:04,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:52:04,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:52:04,053 INFO L87 Difference]: Start difference. First operand 20144 states and 22003 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:04,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:52:04,908 INFO L93 Difference]: Finished difference Result 42124 states and 46061 transitions. [2021-10-28 22:52:04,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:52:04,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 489 [2021-10-28 22:52:04,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:52:04,942 INFO L225 Difference]: With dead ends: 42124 [2021-10-28 22:52:04,942 INFO L226 Difference]: Without dead ends: 22720 [2021-10-28 22:52:04,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:52:04,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22720 states. [2021-10-28 22:52:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22720 to 19758. [2021-10-28 22:52:05,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19758 states, 19757 states have (on average 1.0859948372728654) internal successors, (21456), 19757 states have internal predecessors, (21456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19758 states to 19758 states and 21456 transitions. [2021-10-28 22:52:05,228 INFO L78 Accepts]: Start accepts. Automaton has 19758 states and 21456 transitions. Word has length 489 [2021-10-28 22:52:05,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:52:05,229 INFO L470 AbstractCegarLoop]: Abstraction has 19758 states and 21456 transitions. [2021-10-28 22:52:05,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:05,229 INFO L276 IsEmpty]: Start isEmpty. Operand 19758 states and 21456 transitions. [2021-10-28 22:52:05,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2021-10-28 22:52:05,298 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:52:05,299 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:05,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-28 22:52:05,299 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:52:05,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:05,300 INFO L85 PathProgramCache]: Analyzing trace with hash -238057672, now seen corresponding path program 1 times [2021-10-28 22:52:05,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:05,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930338075] [2021-10-28 22:52:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:05,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:05,761 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 538 proven. 8 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-10-28 22:52:05,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:05,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930338075] [2021-10-28 22:52:05,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930338075] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:52:05,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269549440] [2021-10-28 22:52:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:05,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:52:05,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:52:05,764 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:52:05,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 22:52:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:06,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 22:52:06,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:52:07,915 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-10-28 22:52:07,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269549440] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:07,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 22:52:07,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-10-28 22:52:07,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979764517] [2021-10-28 22:52:07,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:52:07,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:07,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:52:07,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:52:07,918 INFO L87 Difference]: Start difference. First operand 19758 states and 21456 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:08,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:52:08,582 INFO L93 Difference]: Finished difference Result 39155 states and 42626 transitions. [2021-10-28 22:52:08,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:52:08,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 499 [2021-10-28 22:52:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:52:08,603 INFO L225 Difference]: With dead ends: 39155 [2021-10-28 22:52:08,603 INFO L226 Difference]: Without dead ends: 21798 [2021-10-28 22:52:08,612 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:52:08,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21798 states. [2021-10-28 22:52:08,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21798 to 20130. [2021-10-28 22:52:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20130 states, 20129 states have (on average 1.086492125788663) internal successors, (21870), 20129 states have internal predecessors, (21870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:08,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20130 states to 20130 states and 21870 transitions. [2021-10-28 22:52:08,929 INFO L78 Accepts]: Start accepts. Automaton has 20130 states and 21870 transitions. Word has length 499 [2021-10-28 22:52:08,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:52:08,930 INFO L470 AbstractCegarLoop]: Abstraction has 20130 states and 21870 transitions. [2021-10-28 22:52:08,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:08,930 INFO L276 IsEmpty]: Start isEmpty. Operand 20130 states and 21870 transitions. [2021-10-28 22:52:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-10-28 22:52:08,948 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:52:08,948 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:08,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:52:09,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:52:09,164 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:52:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1881077606, now seen corresponding path program 1 times [2021-10-28 22:52:09,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:09,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246300689] [2021-10-28 22:52:09,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:09,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-10-28 22:52:09,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:09,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246300689] [2021-10-28 22:52:09,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246300689] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:09,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:09,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:52:09,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869363791] [2021-10-28 22:52:09,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:52:09,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:09,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:52:09,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:52:09,373 INFO L87 Difference]: Start difference. First operand 20130 states and 21870 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:10,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:52:10,097 INFO L93 Difference]: Finished difference Result 40621 states and 44111 transitions. [2021-10-28 22:52:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:52:10,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 500 [2021-10-28 22:52:10,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:52:10,114 INFO L225 Difference]: With dead ends: 40621 [2021-10-28 22:52:10,114 INFO L226 Difference]: Without dead ends: 21231 [2021-10-28 22:52:10,121 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:52:10,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21231 states. [2021-10-28 22:52:10,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21231 to 14413. [2021-10-28 22:52:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14413 states, 14412 states have (on average 1.0846516791562586) internal successors, (15632), 14412 states have internal predecessors, (15632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14413 states to 14413 states and 15632 transitions. [2021-10-28 22:52:10,419 INFO L78 Accepts]: Start accepts. Automaton has 14413 states and 15632 transitions. Word has length 500 [2021-10-28 22:52:10,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:52:10,420 INFO L470 AbstractCegarLoop]: Abstraction has 14413 states and 15632 transitions. [2021-10-28 22:52:10,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 14413 states and 15632 transitions. [2021-10-28 22:52:10,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2021-10-28 22:52:10,431 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:52:10,431 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-28 22:52:10,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-28 22:52:10,432 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:52:10,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:10,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1786507327, now seen corresponding path program 1 times [2021-10-28 22:52:10,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:10,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440178145] [2021-10-28 22:52:10,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:10,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 321 proven. 493 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:52:10,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:10,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440178145] [2021-10-28 22:52:10,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440178145] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:52:10,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240568152] [2021-10-28 22:52:10,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:10,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:52:10,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:52:10,913 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:52:10,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 22:52:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:11,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 22:52:11,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:52:13,158 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-10-28 22:52:13,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240568152] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:13,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 22:52:13,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-10-28 22:52:13,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561161840] [2021-10-28 22:52:13,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:52:13,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:13,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:52:13,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 22:52:13,160 INFO L87 Difference]: Start difference. First operand 14413 states and 15632 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:13,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:52:13,750 INFO L93 Difference]: Finished difference Result 28090 states and 30393 transitions. [2021-10-28 22:52:13,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:52:13,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 570 [2021-10-28 22:52:13,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:52:13,752 INFO L225 Difference]: With dead ends: 28090 [2021-10-28 22:52:13,752 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 22:52:13,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 22:52:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 22:52:13,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 22:52:13,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:13,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 22:52:13,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 570 [2021-10-28 22:52:13,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:52:13,760 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:52:13,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:52:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 22:52:13,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 22:52:13,763 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:52:13,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:52:13,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-28 22:52:13,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 22:52:13,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:52:15,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:52:15,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:52:18,266 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-28 22:52:18,266 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,266 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-28 22:52:18,266 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,267 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,267 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,267 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,267 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,267 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,267 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-28 22:52:18,267 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-28 22:52:18,268 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-28 22:52:18,268 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,268 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,268 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,268 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,268 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,269 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,269 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,269 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,269 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,269 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,269 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,270 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,271 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,271 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-28 22:52:18,271 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-28 22:52:18,271 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-28 22:52:18,271 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,271 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,272 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,272 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse3 (<= 246 ~a29~0)) (.cse12 (<= ~a29~0 277)) (.cse15 (<= ~a29~0 220)) (.cse11 (<= ~a29~0 245)) (.cse7 (<= 141 ~a29~0)) (.cse0 (= ~a25~0 11)) (.cse9 (= ~a25~0 12)) (.cse4 (= ~a25~0 13)) (.cse8 (<= ~a23~0 599999)) (.cse16 (< 306 ~a23~0)) (.cse6 (<= ~a25~0 10)) (.cse13 (<= ~a4~0 0)) (.cse14 (<= ~a23~0 137)) (.cse1 (= ~a4~0 1)) (.cse5 (<= ~a23~0 312)) (.cse2 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= 260 ~a29~0) .cse1 .cse5 .cse2) (and .cse6 .cse7 .cse1 .cse2) (and .cse8 .cse1 (let ((.cse10 (<= ~a29~0 130))) (or (and .cse9 .cse10) (and .cse0 .cse10))) .cse2) (and .cse9 .cse8 .cse11 .cse7 .cse1 .cse2) (and .cse9 .cse12 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse13 .cse14) (and .cse8 .cse0 .cse7 .cse1 .cse2) (and .cse12 .cse0 .cse5 .cse2 .cse3 .cse13) (and .cse9 .cse1 .cse5 .cse2) (and .cse9 .cse12 .cse2 .cse13) (and .cse8 .cse6 .cse15 .cse2 .cse13) (and .cse8 .cse6 .cse16 .cse1 .cse2) (and .cse0 .cse1 .cse5 .cse2) (and .cse4 .cse15 .cse1 .cse5 .cse2) (and .cse4 .cse2 .cse13 .cse14) (and .cse4 .cse11 .cse7 .cse1 .cse2) (and .cse0 .cse1 .cse14) (and .cse2 (or (and .cse4 .cse1 .cse14) (and .cse1 (<= (+ 127600 ~a23~0) 0)) (and .cse6 .cse1 .cse14))) (and .cse9 .cse2 .cse13 .cse14) (and .cse4 .cse8 .cse16 .cse1 .cse2) (and .cse6 .cse2 .cse13 .cse14) (and (= ~a25~0 9) .cse1 .cse5 .cse2))) [2021-10-28 22:52:18,273 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,273 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-28 22:52:18,273 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-28 22:52:18,273 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,273 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,273 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,273 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,274 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,274 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,274 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-28 22:52:18,274 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-28 22:52:18,274 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-28 22:52:18,274 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-28 22:52:18,275 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,275 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,275 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,276 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,276 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,277 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,277 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,277 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-28 22:52:18,277 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-28 22:52:18,277 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-28 22:52:18,277 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,278 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,278 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,278 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,278 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,278 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,278 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,278 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,279 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,279 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-28 22:52:18,279 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-28 22:52:18,279 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-28 22:52:18,279 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,279 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse3 (<= 246 ~a29~0)) (.cse12 (<= ~a29~0 277)) (.cse15 (<= ~a29~0 220)) (.cse11 (<= ~a29~0 245)) (.cse7 (<= 141 ~a29~0)) (.cse0 (= ~a25~0 11)) (.cse9 (= ~a25~0 12)) (.cse4 (= ~a25~0 13)) (.cse8 (<= ~a23~0 599999)) (.cse16 (< 306 ~a23~0)) (.cse6 (<= ~a25~0 10)) (.cse13 (<= ~a4~0 0)) (.cse14 (<= ~a23~0 137)) (.cse1 (= ~a4~0 1)) (.cse5 (<= ~a23~0 312)) (.cse2 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= 260 ~a29~0) .cse1 .cse5 .cse2) (and .cse6 .cse7 .cse1 .cse2) (and .cse8 .cse1 (let ((.cse10 (<= ~a29~0 130))) (or (and .cse9 .cse10) (and .cse0 .cse10))) .cse2) (and .cse9 .cse8 .cse11 .cse7 .cse1 .cse2) (and .cse9 .cse12 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse13 .cse14) (and .cse8 .cse0 .cse7 .cse1 .cse2) (and .cse12 .cse0 .cse5 .cse2 .cse3 .cse13) (and .cse9 .cse1 .cse5 .cse2) (and .cse9 .cse12 .cse2 .cse13) (and .cse8 .cse6 .cse15 .cse2 .cse13) (and .cse8 .cse6 .cse16 .cse1 .cse2) (and .cse0 .cse1 .cse5 .cse2) (and .cse4 .cse15 .cse1 .cse5 .cse2) (and .cse4 .cse2 .cse13 .cse14) (and .cse4 .cse11 .cse7 .cse1 .cse2) (and .cse0 .cse1 .cse14) (and .cse2 (or (and .cse4 .cse1 .cse14) (and .cse1 (<= (+ 127600 ~a23~0) 0)) (and .cse6 .cse1 .cse14))) (and .cse9 .cse2 .cse13 .cse14) (and .cse4 .cse8 .cse16 .cse1 .cse2) (and .cse6 .cse2 .cse13 .cse14) (and (= ~a25~0 9) .cse1 .cse5 .cse2))) [2021-10-28 22:52:18,280 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,280 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,280 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,280 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,280 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,280 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,281 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,281 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,281 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-28 22:52:18,281 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-28 22:52:18,281 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-28 22:52:18,281 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-28 22:52:18,281 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-28 22:52:18,282 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-28 22:52:18,282 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-28 22:52:18,282 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,282 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,282 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,282 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,282 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,283 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,283 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,283 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,283 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,283 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,283 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 22:52:18,284 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-28 22:52:18,284 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-28 22:52:18,284 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-28 22:52:18,284 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-28 22:52:18,284 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,284 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,284 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,285 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,285 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,285 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-28 22:52:18,285 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-28 22:52:18,285 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-28 22:52:18,285 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,286 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,286 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,286 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,286 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-28 22:52:18,286 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-28 22:52:18,286 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,287 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,287 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,287 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,287 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,287 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,287 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-28 22:52:18,288 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-28 22:52:18,288 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,288 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,288 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-28 22:52:18,288 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-28 22:52:18,288 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-28 22:52:18,288 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 22:52:18,289 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2021-10-28 22:52:18,289 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,289 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,289 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,289 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,289 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,290 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,290 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,290 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-28 22:52:18,290 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-28 22:52:18,290 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-28 22:52:18,290 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-28 22:52:18,290 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-28 22:52:18,291 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-28 22:52:18,291 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-28 22:52:18,291 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,291 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,291 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-28 22:52:18,291 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-28 22:52:18,291 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,291 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,292 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,292 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,292 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,292 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-28 22:52:18,292 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-28 22:52:18,292 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-28 22:52:18,293 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,293 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,293 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,293 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,293 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,293 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,293 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-28 22:52:18,294 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-28 22:52:18,294 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-28 22:52:18,294 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,294 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,294 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,294 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,294 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,295 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,295 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,295 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,295 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-28 22:52:18,295 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-28 22:52:18,295 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-28 22:52:18,295 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,296 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,296 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,296 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,296 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,296 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,296 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,297 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,297 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,297 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,297 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,297 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-28 22:52:18,297 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-28 22:52:18,298 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-28 22:52:18,299 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-28 22:52:18,299 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-28 22:52:18,299 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,299 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,299 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,299 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,299 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,300 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,300 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,300 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-28 22:52:18,300 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-28 22:52:18,300 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-28 22:52:18,300 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,300 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,301 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,301 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-28 22:52:18,301 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-28 22:52:18,301 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,301 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,301 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,302 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,302 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,302 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-28 22:52:18,302 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-28 22:52:18,302 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,302 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,302 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-28 22:52:18,303 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-28 22:52:18,303 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,303 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 22:52:18,303 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,303 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,303 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,303 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,304 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,304 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-28 22:52:18,304 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-28 22:52:18,304 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-28 22:52:18,304 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-28 22:52:18,304 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,304 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,305 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,305 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,305 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,305 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,305 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,305 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,306 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-28 22:52:18,306 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-28 22:52:18,307 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-28 22:52:18,308 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-28 22:52:18,308 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-28 22:52:18,308 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-28 22:52:18,308 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,308 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,308 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,309 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,309 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,309 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,310 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,310 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-28 22:52:18,310 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-28 22:52:18,310 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 22:52:18,310 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,310 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,310 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,311 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,311 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,311 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,311 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-28 22:52:18,311 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-28 22:52:18,311 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,311 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-28 22:52:18,312 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-28 22:52:18,315 INFO L731 BasicCegarLoop]: Path program 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] [2021-10-28 22:52:18,317 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:52:18,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:52:18 BoogieIcfgContainer [2021-10-28 22:52:18,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:52:18,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:52:18,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:52:18,347 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:52:18,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:22" (3/4) ... [2021-10-28 22:52:18,351 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 22:52:18,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 22:52:18,397 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 22:52:18,399 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:52:18,401 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:52:18,597 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:52:18,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:52:18,599 INFO L168 Benchmark]: Toolchain (without parser) took 59615.16 ms. Allocated memory was 94.4 MB in the beginning and 5.0 GB in the end (delta: 4.9 GB). Free memory was 58.1 MB in the beginning and 3.9 GB in the end (delta: -3.8 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. [2021-10-28 22:52:18,600 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:52:18,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 895.01 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 57.9 MB in the beginning and 88.0 MB in the end (delta: -30.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:18,601 INFO L168 Benchmark]: Boogie Procedure Inliner took 191.94 ms. Allocated memory is still 117.4 MB. Free memory was 88.0 MB in the beginning and 73.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:18,602 INFO L168 Benchmark]: Boogie Preprocessor took 127.93 ms. Allocated memory is still 117.4 MB. Free memory was 73.4 MB in the beginning and 63.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:18,602 INFO L168 Benchmark]: RCFGBuilder took 1834.14 ms. Allocated memory was 117.4 MB in the beginning and 178.3 MB in the end (delta: 60.8 MB). Free memory was 63.7 MB in the beginning and 122.5 MB in the end (delta: -58.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:18,602 INFO L168 Benchmark]: TraceAbstraction took 56302.53 ms. Allocated memory was 178.3 MB in the beginning and 5.0 GB in the end (delta: 4.9 GB). Free memory was 122.5 MB in the beginning and 3.9 GB in the end (delta: -3.8 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. [2021-10-28 22:52:18,603 INFO L168 Benchmark]: Witness Printer took 250.82 ms. Allocated memory is still 5.0 GB. Free memory was 3.9 GB in the beginning and 3.9 GB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:18,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 895.01 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 57.9 MB in the beginning and 88.0 MB in the end (delta: -30.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 191.94 ms. Allocated memory is still 117.4 MB. Free memory was 88.0 MB in the beginning and 73.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 127.93 ms. Allocated memory is still 117.4 MB. Free memory was 73.4 MB in the beginning and 63.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1834.14 ms. Allocated memory was 117.4 MB in the beginning and 178.3 MB in the end (delta: 60.8 MB). Free memory was 63.7 MB in the beginning and 122.5 MB in the end (delta: -58.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 56302.53 ms. Allocated memory was 178.3 MB in the beginning and 5.0 GB in the end (delta: 4.9 GB). Free memory was 122.5 MB in the beginning and 3.9 GB in the end (delta: -3.8 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. * Witness Printer took 250.82 ms. Allocated memory is still 5.0 GB. Free memory was 3.9 GB in the beginning and 3.9 GB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 148]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.1s, OverallIterations: 25, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 27.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5403 SDtfs, 4692 SDslu, 743 SDs, 0 SdLazy, 17736 SolverSat, 2464 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2236 GetRequests, 2183 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31813occurred in iteration=17, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.5s AutomataMinimizationTime, 25 MinimizatonAttempts, 48848 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 173 NumberOfFragments, 733 HoareAnnotationTreeSize, 3 FomulaSimplifications, 221606 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 3 FomulaSimplificationsInter, 100260 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 10078 NumberOfCodeBlocks, 10078 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 10048 ConstructedInterpolants, 0 QuantifiedInterpolants, 34713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2949 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 30 InterpolantComputations, 24 PerfectInterpolantSequences, 9819/10862 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a25 == 11 && a4 == 1) && a8 == 15) && 246 <= a29) || ((((a25 == 13 && 260 <= a29) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((a25 <= 10 && 141 <= a29) && a4 == 1) && a8 == 15)) || (((a23 <= 599999 && a4 == 1) && ((a25 == 12 && a29 <= 130) || (a25 == 11 && a29 <= 130))) && a8 == 15)) || (((((a25 == 12 && a23 <= 599999) && a29 <= 245) && 141 <= a29) && a4 == 1) && a8 == 15)) || ((((a25 == 12 && a29 <= 277) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((a25 == 11 && a8 == 15) && a4 <= 0) && a23 <= 137)) || ((((a23 <= 599999 && a25 == 11) && 141 <= a29) && a4 == 1) && a8 == 15)) || (((((a29 <= 277 && a25 == 11) && a23 <= 312) && a8 == 15) && 246 <= a29) && a4 <= 0)) || (((a25 == 12 && a4 == 1) && a23 <= 312) && a8 == 15)) || (((a25 == 12 && a29 <= 277) && a8 == 15) && a4 <= 0)) || ((((a23 <= 599999 && a25 <= 10) && a29 <= 220) && a8 == 15) && a4 <= 0)) || ((((a23 <= 599999 && a25 <= 10) && 306 < a23) && a4 == 1) && a8 == 15)) || (((a25 == 11 && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 13 && a29 <= 220) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((a25 == 13 && a8 == 15) && a4 <= 0) && a23 <= 137)) || ((((a25 == 13 && a29 <= 245) && 141 <= a29) && a4 == 1) && a8 == 15)) || ((a25 == 11 && a4 == 1) && a23 <= 137)) || (a8 == 15 && ((((a25 == 13 && a4 == 1) && a23 <= 137) || (a4 == 1 && 127600 + a23 <= 0)) || ((a25 <= 10 && a4 == 1) && a23 <= 137)))) || (((a25 == 12 && a8 == 15) && a4 <= 0) && a23 <= 137)) || ((((a25 == 13 && a23 <= 599999) && 306 < a23) && a4 == 1) && a8 == 15)) || (((a25 <= 10 && a8 == 15) && a4 <= 0) && a23 <= 137)) || (((a25 == 9 && a4 == 1) && a23 <= 312) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a25 == 11 && a4 == 1) && a8 == 15) && 246 <= a29) || ((((a25 == 13 && 260 <= a29) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((a25 <= 10 && 141 <= a29) && a4 == 1) && a8 == 15)) || (((a23 <= 599999 && a4 == 1) && ((a25 == 12 && a29 <= 130) || (a25 == 11 && a29 <= 130))) && a8 == 15)) || (((((a25 == 12 && a23 <= 599999) && a29 <= 245) && 141 <= a29) && a4 == 1) && a8 == 15)) || ((((a25 == 12 && a29 <= 277) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((a25 == 11 && a8 == 15) && a4 <= 0) && a23 <= 137)) || ((((a23 <= 599999 && a25 == 11) && 141 <= a29) && a4 == 1) && a8 == 15)) || (((((a29 <= 277 && a25 == 11) && a23 <= 312) && a8 == 15) && 246 <= a29) && a4 <= 0)) || (((a25 == 12 && a4 == 1) && a23 <= 312) && a8 == 15)) || (((a25 == 12 && a29 <= 277) && a8 == 15) && a4 <= 0)) || ((((a23 <= 599999 && a25 <= 10) && a29 <= 220) && a8 == 15) && a4 <= 0)) || ((((a23 <= 599999 && a25 <= 10) && 306 < a23) && a4 == 1) && a8 == 15)) || (((a25 == 11 && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 13 && a29 <= 220) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((a25 == 13 && a8 == 15) && a4 <= 0) && a23 <= 137)) || ((((a25 == 13 && a29 <= 245) && 141 <= a29) && a4 == 1) && a8 == 15)) || ((a25 == 11 && a4 == 1) && a23 <= 137)) || (a8 == 15 && ((((a25 == 13 && a4 == 1) && a23 <= 137) || (a4 == 1 && 127600 + a23 <= 0)) || ((a25 <= 10 && a4 == 1) && a23 <= 137)))) || (((a25 == 12 && a8 == 15) && a4 <= 0) && a23 <= 137)) || ((((a25 == 13 && a23 <= 599999) && 306 < a23) && a4 == 1) && a8 == 15)) || (((a25 <= 10 && a8 == 15) && a4 <= 0) && a23 <= 137)) || (((a25 == 9 && a4 == 1) && a23 <= 312) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 22:52:18,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e7774a-6c57-4aa5-a6e2-1f0bde040664/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...