./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 49dac4ca9ee8c434b3fbcc0dc92d48d94344e2f3 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:33:38,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:33:38,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:33:38,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:33:38,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:33:38,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:33:38,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:33:38,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:33:38,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:33:38,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:33:38,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:33:38,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:33:38,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:33:38,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:33:38,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:33:38,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:33:38,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:33:38,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:33:38,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:33:38,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:33:38,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:33:38,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:33:38,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:33:38,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:33:38,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:33:38,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:33:38,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:33:38,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:33:38,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:33:38,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:33:38,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:33:38,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:33:38,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:33:38,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:33:38,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:33:38,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:33:38,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:33:38,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:33:38,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:33:38,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:33:38,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:33:38,352 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:33:38,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:33:38,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:33:38,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:33:38,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:33:38,401 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:33:38,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:33:38,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:33:38,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:33:38,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:33:38,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:33:38,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:33:38,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:33:38,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:33:38,404 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:33:38,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:33:38,404 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:33:38,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:33:38,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:33:38,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:33:38,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:33:38,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:38,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:33:38,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:33:38,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:33:38,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:33:38,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:33:38,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:33:38,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:33:38,407 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_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49dac4ca9ee8c434b3fbcc0dc92d48d94344e2f3 [2021-10-11 00:33:38,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:33:38,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:33:38,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:33:38,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:33:38,752 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:33:38,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2021-10-11 00:33:38,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/data/531ac3905/7aa1bed740d84f45a582e1b3ec445396/FLAG38855a370 [2021-10-11 00:33:39,457 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:33:39,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2021-10-11 00:33:39,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/data/531ac3905/7aa1bed740d84f45a582e1b3ec445396/FLAG38855a370 [2021-10-11 00:33:39,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/data/531ac3905/7aa1bed740d84f45a582e1b3ec445396 [2021-10-11 00:33:39,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:33:39,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:33:39,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:39,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:33:39,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:33:39,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:39" (1/1) ... [2021-10-11 00:33:39,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1fa7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:39, skipping insertion in model container [2021-10-11 00:33:39,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:39" (1/1) ... [2021-10-11 00:33:39,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:33:39,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:33:40,058 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2021-10-11 00:33:40,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:40,301 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:33:40,350 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2021-10-11 00:33:40,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:40,457 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:33:40,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40 WrapperNode [2021-10-11 00:33:40,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:40,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:40,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:33:40,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:33:40,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... [2021-10-11 00:33:40,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... [2021-10-11 00:33:40,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:40,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:33:40,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:33:40,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:33:40,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... [2021-10-11 00:33:40,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... [2021-10-11 00:33:40,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... [2021-10-11 00:33:40,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... [2021-10-11 00:33:40,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... [2021-10-11 00:33:40,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... [2021-10-11 00:33:40,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... [2021-10-11 00:33:40,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:33:40,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:33:40,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:33:40,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:33:40,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:40,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:33:40,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:33:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:33:40,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:33:42,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:33:42,593 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:33:42,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:42 BoogieIcfgContainer [2021-10-11 00:33:42,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:33:42,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:33:42,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:33:42,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:33:42,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:33:39" (1/3) ... [2021-10-11 00:33:42,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a58125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:42, skipping insertion in model container [2021-10-11 00:33:42,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:40" (2/3) ... [2021-10-11 00:33:42,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a58125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:42, skipping insertion in model container [2021-10-11 00:33:42,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:42" (3/3) ... [2021-10-11 00:33:42,604 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2021-10-11 00:33:42,618 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:33:42,622 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:33:42,633 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:33:42,657 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:33:42,657 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:33:42,657 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:33:42,657 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:33:42,657 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:33:42,658 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:33:42,658 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:33:42,658 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:33:42,677 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2021-10-11 00:33:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-11 00:33:42,686 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:42,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:42,687 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:42,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:42,693 INFO L82 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2021-10-11 00:33:42,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:42,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087226678] [2021-10-11 00:33:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:43,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087226678] [2021-10-11 00:33:43,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:43,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:33:43,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560762524] [2021-10-11 00:33:43,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:43,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:43,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:43,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:43,034 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2021-10-11 00:33:44,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:44,474 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2021-10-11 00:33:44,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:44,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2021-10-11 00:33:44,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:44,491 INFO L225 Difference]: With dead ends: 685 [2021-10-11 00:33:44,492 INFO L226 Difference]: Without dead ends: 360 [2021-10-11 00:33:44,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-11 00:33:44,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-11 00:33:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2021-10-11 00:33:44,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-10-11 00:33:44,568 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 56 [2021-10-11 00:33:44,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:44,569 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-10-11 00:33:44,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:44,569 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-10-11 00:33:44,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-10-11 00:33:44,575 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:44,576 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:33:44,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:33:44,576 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:44,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:44,577 INFO L82 PathProgramCache]: Analyzing trace with hash -596921339, now seen corresponding path program 1 times [2021-10-11 00:33:44,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:44,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408168785] [2021-10-11 00:33:44,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:44,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408168785] [2021-10-11 00:33:44,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:44,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:44,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196897955] [2021-10-11 00:33:44,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:33:44,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:44,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:33:44,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:44,870 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2021-10-11 00:33:46,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:46,247 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2021-10-11 00:33:46,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:33:46,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 135 [2021-10-11 00:33:46,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:46,255 INFO L225 Difference]: With dead ends: 1074 [2021-10-11 00:33:46,255 INFO L226 Difference]: Without dead ends: 716 [2021-10-11 00:33:46,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:33:46,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-11 00:33:46,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-10-11 00:33:46,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2021-10-11 00:33:46,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2021-10-11 00:33:46,301 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 135 [2021-10-11 00:33:46,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:46,302 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2021-10-11 00:33:46,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:33:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2021-10-11 00:33:46,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-10-11 00:33:46,307 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:46,307 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:33:46,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:33:46,308 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:46,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:46,309 INFO L82 PathProgramCache]: Analyzing trace with hash -602971324, now seen corresponding path program 1 times [2021-10-11 00:33:46,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:46,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896939360] [2021-10-11 00:33:46,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:46,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896939360] [2021-10-11 00:33:46,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:46,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:46,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465365054] [2021-10-11 00:33:46,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:46,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:46,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:46,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:46,503 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2021-10-11 00:33:47,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:47,477 INFO L93 Difference]: Finished difference Result 1964 states and 2499 transitions. [2021-10-11 00:33:47,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:47,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2021-10-11 00:33:47,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:47,485 INFO L225 Difference]: With dead ends: 1964 [2021-10-11 00:33:47,485 INFO L226 Difference]: Without dead ends: 1250 [2021-10-11 00:33:47,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-11 00:33:47,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-10-11 00:33:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2021-10-11 00:33:47,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2021-10-11 00:33:47,522 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 161 [2021-10-11 00:33:47,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:47,523 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2021-10-11 00:33:47,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:47,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2021-10-11 00:33:47,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-10-11 00:33:47,530 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:47,530 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:47,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:33:47,530 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:47,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:47,531 INFO L82 PathProgramCache]: Analyzing trace with hash -452523719, now seen corresponding path program 1 times [2021-10-11 00:33:47,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:47,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071400032] [2021-10-11 00:33:47,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 00:33:47,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071400032] [2021-10-11 00:33:47,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:47,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:47,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735225982] [2021-10-11 00:33:47,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:33:47,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:47,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:33:47,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:47,872 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2021-10-11 00:33:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:48,847 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2021-10-11 00:33:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:33:48,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 215 [2021-10-11 00:33:48,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:48,859 INFO L225 Difference]: With dead ends: 2705 [2021-10-11 00:33:48,860 INFO L226 Difference]: Without dead ends: 1606 [2021-10-11 00:33:48,862 INFO L677 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 [2021-10-11 00:33:48,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-10-11 00:33:48,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2021-10-11 00:33:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2021-10-11 00:33:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2021-10-11 00:33:48,902 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 215 [2021-10-11 00:33:48,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:48,904 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2021-10-11 00:33:48,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:33:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2021-10-11 00:33:48,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-10-11 00:33:48,910 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:48,910 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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] [2021-10-11 00:33:48,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:33:48,911 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:48,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:48,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1042976344, now seen corresponding path program 1 times [2021-10-11 00:33:48,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:48,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266501393] [2021-10-11 00:33:48,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:49,508 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 209 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-11 00:33:49,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266501393] [2021-10-11 00:33:49,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158681022] [2021-10-11 00:33:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:49,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:33:49,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-10-11 00:33:50,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:33:50,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-11 00:33:50,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433932763] [2021-10-11 00:33:50,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:50,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:50,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:50,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:33:50,291 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2021-10-11 00:33:51,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:51,152 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2021-10-11 00:33:51,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:51,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 342 [2021-10-11 00:33:51,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:51,164 INFO L225 Difference]: With dead ends: 3388 [2021-10-11 00:33:51,165 INFO L226 Difference]: Without dead ends: 1962 [2021-10-11 00:33:51,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:33:51,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-11 00:33:51,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-10-11 00:33:51,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2021-10-11 00:33:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2021-10-11 00:33:51,214 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 342 [2021-10-11 00:33:51,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:51,215 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2021-10-11 00:33:51,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2021-10-11 00:33:51,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-10-11 00:33:51,222 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:51,222 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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] [2021-10-11 00:33:51,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:51,439 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:51,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:51,440 INFO L82 PathProgramCache]: Analyzing trace with hash 246905886, now seen corresponding path program 1 times [2021-10-11 00:33:51,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:51,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006509990] [2021-10-11 00:33:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:51,735 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-11 00:33:51,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006509990] [2021-10-11 00:33:51,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:51,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:51,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299463683] [2021-10-11 00:33:51,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:51,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:51,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:51,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:51,738 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand 3 states. [2021-10-11 00:33:52,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:52,482 INFO L93 Difference]: Finished difference Result 3744 states and 4282 transitions. [2021-10-11 00:33:52,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:52,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 346 [2021-10-11 00:33:52,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:52,495 INFO L225 Difference]: With dead ends: 3744 [2021-10-11 00:33:52,495 INFO L226 Difference]: Without dead ends: 2140 [2021-10-11 00:33:52,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:52,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-10-11 00:33:52,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-10-11 00:33:52,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2021-10-11 00:33:52,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2413 transitions. [2021-10-11 00:33:52,548 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2413 transitions. Word has length 346 [2021-10-11 00:33:52,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:52,549 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2413 transitions. [2021-10-11 00:33:52,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2413 transitions. [2021-10-11 00:33:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-10-11 00:33:52,555 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:52,556 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1] [2021-10-11 00:33:52,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:33:52,556 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:52,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:52,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1148447004, now seen corresponding path program 1 times [2021-10-11 00:33:52,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:52,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382640651] [2021-10-11 00:33:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:52,852 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-11 00:33:52,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382640651] [2021-10-11 00:33:52,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:52,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:52,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195800323] [2021-10-11 00:33:52,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:52,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:52,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:52,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:52,856 INFO L87 Difference]: Start difference. First operand 2140 states and 2413 transitions. Second operand 3 states. [2021-10-11 00:33:53,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:53,651 INFO L93 Difference]: Finished difference Result 4634 states and 5316 transitions. [2021-10-11 00:33:53,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:53,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 373 [2021-10-11 00:33:53,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:53,666 INFO L225 Difference]: With dead ends: 4634 [2021-10-11 00:33:53,666 INFO L226 Difference]: Without dead ends: 2674 [2021-10-11 00:33:53,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:53,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-11 00:33:53,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2318. [2021-10-11 00:33:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2021-10-11 00:33:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2622 transitions. [2021-10-11 00:33:53,727 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2622 transitions. Word has length 373 [2021-10-11 00:33:53,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:53,728 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2622 transitions. [2021-10-11 00:33:53,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:53,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2622 transitions. [2021-10-11 00:33:53,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-10-11 00:33:53,736 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:53,737 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:53,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:33:53,737 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:53,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:53,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1347609353, now seen corresponding path program 1 times [2021-10-11 00:33:53,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:53,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225269782] [2021-10-11 00:33:53,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-11 00:33:54,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225269782] [2021-10-11 00:33:54,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:54,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:54,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689029209] [2021-10-11 00:33:54,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:54,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:54,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:54,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:54,064 INFO L87 Difference]: Start difference. First operand 2318 states and 2622 transitions. Second operand 3 states. [2021-10-11 00:33:54,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:54,844 INFO L93 Difference]: Finished difference Result 5168 states and 5922 transitions. [2021-10-11 00:33:54,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:54,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 380 [2021-10-11 00:33:54,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:54,860 INFO L225 Difference]: With dead ends: 5168 [2021-10-11 00:33:54,860 INFO L226 Difference]: Without dead ends: 3030 [2021-10-11 00:33:54,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:54,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-10-11 00:33:54,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-10-11 00:33:54,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2021-10-11 00:33:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3431 transitions. [2021-10-11 00:33:54,926 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3431 transitions. Word has length 380 [2021-10-11 00:33:54,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:54,927 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3431 transitions. [2021-10-11 00:33:54,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:54,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3431 transitions. [2021-10-11 00:33:54,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-10-11 00:33:54,931 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:54,932 INFO L422 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, 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:54,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:33:54,932 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:54,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:54,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1274381579, now seen corresponding path program 1 times [2021-10-11 00:33:54,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:54,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686025215] [2021-10-11 00:33:54,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:55,391 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-10-11 00:33:55,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686025215] [2021-10-11 00:33:55,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:55,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:55,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50756118] [2021-10-11 00:33:55,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:33:55,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:55,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:33:55,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:55,395 INFO L87 Difference]: Start difference. First operand 3030 states and 3431 transitions. Second operand 4 states. [2021-10-11 00:33:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:56,255 INFO L93 Difference]: Finished difference Result 6087 states and 6906 transitions. [2021-10-11 00:33:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:33:56,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 455 [2021-10-11 00:33:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:56,271 INFO L225 Difference]: With dead ends: 6087 [2021-10-11 00:33:56,271 INFO L226 Difference]: Without dead ends: 3208 [2021-10-11 00:33:56,275 INFO L677 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 [2021-10-11 00:33:56,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-11 00:33:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2021-10-11 00:33:56,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2021-10-11 00:33:56,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3285 transitions. [2021-10-11 00:33:56,335 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3285 transitions. Word has length 455 [2021-10-11 00:33:56,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:56,335 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3285 transitions. [2021-10-11 00:33:56,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:33:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3285 transitions. [2021-10-11 00:33:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-10-11 00:33:56,341 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:56,342 INFO L422 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, 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, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:56,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:33:56,343 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:56,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:56,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1801199018, now seen corresponding path program 1 times [2021-10-11 00:33:56,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:56,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037201868] [2021-10-11 00:33:56,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 520 proven. 11 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-11 00:33:57,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037201868] [2021-10-11 00:33:57,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714054683] [2021-10-11 00:33:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:57,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:33:57,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-10-11 00:33:57,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:33:57,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-11 00:33:57,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191876316] [2021-10-11 00:33:57,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:57,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:57,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:57,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:33:57,818 INFO L87 Difference]: Start difference. First operand 3030 states and 3285 transitions. Second operand 3 states. [2021-10-11 00:33:58,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:58,387 INFO L93 Difference]: Finished difference Result 5880 states and 6389 transitions. [2021-10-11 00:33:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:58,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 481 [2021-10-11 00:33:58,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:58,402 INFO L225 Difference]: With dead ends: 5880 [2021-10-11 00:33:58,403 INFO L226 Difference]: Without dead ends: 3030 [2021-10-11 00:33:58,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:33:58,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-10-11 00:33:58,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-10-11 00:33:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2021-10-11 00:33:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3253 transitions. [2021-10-11 00:33:58,462 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3253 transitions. Word has length 481 [2021-10-11 00:33:58,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:58,463 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3253 transitions. [2021-10-11 00:33:58,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:58,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3253 transitions. [2021-10-11 00:33:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-10-11 00:33:58,468 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:58,468 INFO L422 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, 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, 4, 4, 4, 3, 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] [2021-10-11 00:33:58,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-11 00:33:58,683 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:58,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:58,684 INFO L82 PathProgramCache]: Analyzing trace with hash -682875946, now seen corresponding path program 1 times [2021-10-11 00:33:58,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:58,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174014323] [2021-10-11 00:33:58,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:59,592 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 463 proven. 68 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-11 00:33:59,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174014323] [2021-10-11 00:33:59,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198311627] [2021-10-11 00:33:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:59,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:33:59,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-10-11 00:34:00,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:34:00,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-11 00:34:00,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775420363] [2021-10-11 00:34:00,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:00,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:00,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:00,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:00,324 INFO L87 Difference]: Start difference. First operand 3030 states and 3253 transitions. Second operand 3 states. [2021-10-11 00:34:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:01,005 INFO L93 Difference]: Finished difference Result 6948 states and 7510 transitions. [2021-10-11 00:34:01,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:01,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 502 [2021-10-11 00:34:01,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:01,027 INFO L225 Difference]: With dead ends: 6948 [2021-10-11 00:34:01,027 INFO L226 Difference]: Without dead ends: 4098 [2021-10-11 00:34:01,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:01,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-10-11 00:34:01,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2021-10-11 00:34:01,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2021-10-11 00:34:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4396 transitions. [2021-10-11 00:34:01,108 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4396 transitions. Word has length 502 [2021-10-11 00:34:01,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:01,109 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4396 transitions. [2021-10-11 00:34:01,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4396 transitions. [2021-10-11 00:34:01,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2021-10-11 00:34:01,115 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:01,116 INFO L422 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, 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, 4, 4, 4, 3, 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] [2021-10-11 00:34:01,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-11 00:34:01,343 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:01,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:01,344 INFO L82 PathProgramCache]: Analyzing trace with hash 120362576, now seen corresponding path program 1 times [2021-10-11 00:34:01,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:01,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043988224] [2021-10-11 00:34:01,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:01,759 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 484 proven. 54 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-11 00:34:01,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043988224] [2021-10-11 00:34:01,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259151498] [2021-10-11 00:34:01,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:34:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:01,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:34:01,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:02,538 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-10-11 00:34:02,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:34:02,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-11 00:34:02,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534137003] [2021-10-11 00:34:02,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:02,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:02,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:02,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:34:02,540 INFO L87 Difference]: Start difference. First operand 4098 states and 4396 transitions. Second operand 3 states. [2021-10-11 00:34:03,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:03,291 INFO L93 Difference]: Finished difference Result 8372 states and 9035 transitions. [2021-10-11 00:34:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:03,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 535 [2021-10-11 00:34:03,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:03,324 INFO L225 Difference]: With dead ends: 8372 [2021-10-11 00:34:03,325 INFO L226 Difference]: Without dead ends: 4454 [2021-10-11 00:34:03,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:34:03,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2021-10-11 00:34:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2021-10-11 00:34:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2021-10-11 00:34:03,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4798 transitions. [2021-10-11 00:34:03,407 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4798 transitions. Word has length 535 [2021-10-11 00:34:03,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:03,408 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4798 transitions. [2021-10-11 00:34:03,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:03,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4798 transitions. [2021-10-11 00:34:03,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2021-10-11 00:34:03,415 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:03,415 INFO L422 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, 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, 4, 4, 4, 3, 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] [2021-10-11 00:34:03,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:34:03,631 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:03,631 INFO L82 PathProgramCache]: Analyzing trace with hash -663711901, now seen corresponding path program 1 times [2021-10-11 00:34:03,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:03,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304292539] [2021-10-11 00:34:03,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:04,564 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 445 proven. 93 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-11 00:34:04,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304292539] [2021-10-11 00:34:04,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519069679] [2021-10-11 00:34:04,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:34:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:04,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:34:04,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2021-10-11 00:34:05,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:34:05,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-11 00:34:05,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481722183] [2021-10-11 00:34:05,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:05,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:05,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:05,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:05,561 INFO L87 Difference]: Start difference. First operand 4454 states and 4798 transitions. Second operand 3 states. [2021-10-11 00:34:06,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:06,253 INFO L93 Difference]: Finished difference Result 5524 states and 5969 transitions. [2021-10-11 00:34:06,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:06,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 553 [2021-10-11 00:34:06,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:06,275 INFO L225 Difference]: With dead ends: 5524 [2021-10-11 00:34:06,275 INFO L226 Difference]: Without dead ends: 5522 [2021-10-11 00:34:06,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:06,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-10-11 00:34:06,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4632. [2021-10-11 00:34:06,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2021-10-11 00:34:06,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 5000 transitions. [2021-10-11 00:34:06,349 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 5000 transitions. Word has length 553 [2021-10-11 00:34:06,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:06,349 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 5000 transitions. [2021-10-11 00:34:06,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:06,350 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 5000 transitions. [2021-10-11 00:34:06,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2021-10-11 00:34:06,357 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:06,358 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:06,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-11 00:34:06,571 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:06,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:06,571 INFO L82 PathProgramCache]: Analyzing trace with hash 538602375, now seen corresponding path program 1 times [2021-10-11 00:34:06,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:06,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838366429] [2021-10-11 00:34:06,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 943 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2021-10-11 00:34:07,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838366429] [2021-10-11 00:34:07,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48120909] [2021-10-11 00:34:07,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:34:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:07,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:34:07,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:08,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2021-10-11 00:34:08,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:34:08,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-11 00:34:08,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388997455] [2021-10-11 00:34:08,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:08,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:08,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:08,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:08,299 INFO L87 Difference]: Start difference. First operand 4632 states and 5000 transitions. Second operand 3 states. [2021-10-11 00:34:08,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:08,879 INFO L93 Difference]: Finished difference Result 6058 states and 6544 transitions. [2021-10-11 00:34:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:08,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 588 [2021-10-11 00:34:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:08,889 INFO L225 Difference]: With dead ends: 6058 [2021-10-11 00:34:08,889 INFO L226 Difference]: Without dead ends: 6056 [2021-10-11 00:34:08,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-10-11 00:34:08,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 4632. [2021-10-11 00:34:08,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2021-10-11 00:34:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 5000 transitions. [2021-10-11 00:34:08,963 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 5000 transitions. Word has length 588 [2021-10-11 00:34:08,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:08,964 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 5000 transitions. [2021-10-11 00:34:08,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:08,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 5000 transitions. [2021-10-11 00:34:08,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-10-11 00:34:08,973 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:08,974 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2021-10-11 00:34:09,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:34:09,187 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:09,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:09,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1811126405, now seen corresponding path program 1 times [2021-10-11 00:34:09,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:09,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568397133] [2021-10-11 00:34:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2021-10-11 00:34:10,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568397133] [2021-10-11 00:34:10,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146901066] [2021-10-11 00:34:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:34:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:10,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:34:10,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2021-10-11 00:34:11,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:34:11,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-11 00:34:11,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597327023] [2021-10-11 00:34:11,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:11,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:11,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:11,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:11,186 INFO L87 Difference]: Start difference. First operand 4632 states and 5000 transitions. Second operand 3 states. [2021-10-11 00:34:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:11,718 INFO L93 Difference]: Finished difference Result 5880 states and 6350 transitions. [2021-10-11 00:34:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:11,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 619 [2021-10-11 00:34:11,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:11,726 INFO L225 Difference]: With dead ends: 5880 [2021-10-11 00:34:11,726 INFO L226 Difference]: Without dead ends: 5878 [2021-10-11 00:34:11,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:11,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2021-10-11 00:34:11,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 4632. [2021-10-11 00:34:11,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2021-10-11 00:34:11,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 5000 transitions. [2021-10-11 00:34:11,800 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 5000 transitions. Word has length 619 [2021-10-11 00:34:11,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:11,800 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 5000 transitions. [2021-10-11 00:34:11,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:11,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 5000 transitions. [2021-10-11 00:34:11,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2021-10-11 00:34:11,810 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:11,811 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:12,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-11 00:34:12,039 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:12,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:12,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1748481757, now seen corresponding path program 1 times [2021-10-11 00:34:12,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:12,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040044736] [2021-10-11 00:34:12,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:13,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2021-10-11 00:34:13,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040044736] [2021-10-11 00:34:13,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228929847] [2021-10-11 00:34:13,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:34:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:13,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:34:13,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 639 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-10-11 00:34:14,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:34:14,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-11 00:34:14,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5288364] [2021-10-11 00:34:14,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:14,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:14,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:14,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:14,466 INFO L87 Difference]: Start difference. First operand 4632 states and 5000 transitions. Second operand 3 states. [2021-10-11 00:34:15,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:15,086 INFO L93 Difference]: Finished difference Result 9262 states and 10008 transitions. [2021-10-11 00:34:15,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:15,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 628 [2021-10-11 00:34:15,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:15,095 INFO L225 Difference]: With dead ends: 9262 [2021-10-11 00:34:15,095 INFO L226 Difference]: Without dead ends: 4810 [2021-10-11 00:34:15,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:15,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-10-11 00:34:15,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-10-11 00:34:15,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2021-10-11 00:34:15,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5123 transitions. [2021-10-11 00:34:15,169 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5123 transitions. Word has length 628 [2021-10-11 00:34:15,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:15,170 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 5123 transitions. [2021-10-11 00:34:15,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:15,170 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5123 transitions. [2021-10-11 00:34:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 933 [2021-10-11 00:34:15,185 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:15,186 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:15,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-11 00:34:15,411 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:15,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:15,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1439738851, now seen corresponding path program 1 times [2021-10-11 00:34:15,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:15,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711626869] [2021-10-11 00:34:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 1906 proven. 155 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2021-10-11 00:34:16,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711626869] [2021-10-11 00:34:16,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618425695] [2021-10-11 00:34:16,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:34:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:16,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:34:16,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 1906 proven. 155 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2021-10-11 00:34:17,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:34:17,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-11 00:34:17,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254745436] [2021-10-11 00:34:17,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:34:17,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:17,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:34:17,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:34:17,829 INFO L87 Difference]: Start difference. First operand 4810 states and 5123 transitions. Second operand 4 states. [2021-10-11 00:34:18,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:18,786 INFO L93 Difference]: Finished difference Result 10864 states and 11586 transitions. [2021-10-11 00:34:18,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:34:18,786 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 932 [2021-10-11 00:34:18,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:18,803 INFO L225 Difference]: With dead ends: 10864 [2021-10-11 00:34:18,803 INFO L226 Difference]: Without dead ends: 6234 [2021-10-11 00:34:18,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 935 GetRequests, 933 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:34:18,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2021-10-11 00:34:18,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 5700. [2021-10-11 00:34:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5700 states. [2021-10-11 00:34:18,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6077 transitions. [2021-10-11 00:34:18,925 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6077 transitions. Word has length 932 [2021-10-11 00:34:18,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:18,927 INFO L481 AbstractCegarLoop]: Abstraction has 5700 states and 6077 transitions. [2021-10-11 00:34:18,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:34:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6077 transitions. [2021-10-11 00:34:18,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1023 [2021-10-11 00:34:18,945 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:18,946 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2021-10-11 00:34:19,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-11 00:34:19,159 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:19,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:19,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1890752560, now seen corresponding path program 1 times [2021-10-11 00:34:19,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:19,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448899649] [2021-10-11 00:34:19,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:20,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3133 backedges. 1997 proven. 93 refuted. 0 times theorem prover too weak. 1043 trivial. 0 not checked. [2021-10-11 00:34:20,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448899649] [2021-10-11 00:34:20,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88639325] [2021-10-11 00:34:20,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:34:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:21,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:34:21,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3133 backedges. 2090 proven. 0 refuted. 0 times theorem prover too weak. 1043 trivial. 0 not checked. [2021-10-11 00:34:22,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:34:22,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-11 00:34:22,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237639838] [2021-10-11 00:34:22,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:22,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:22,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:22,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:22,715 INFO L87 Difference]: Start difference. First operand 5700 states and 6077 transitions. Second operand 3 states. [2021-10-11 00:34:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:23,272 INFO L93 Difference]: Finished difference Result 11754 states and 12521 transitions. [2021-10-11 00:34:23,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:23,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1022 [2021-10-11 00:34:23,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:23,282 INFO L225 Difference]: With dead ends: 11754 [2021-10-11 00:34:23,282 INFO L226 Difference]: Without dead ends: 6234 [2021-10-11 00:34:23,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1025 GetRequests, 1021 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2021-10-11 00:34:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 5878. [2021-10-11 00:34:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5878 states. [2021-10-11 00:34:23,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6260 transitions. [2021-10-11 00:34:23,366 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6260 transitions. Word has length 1022 [2021-10-11 00:34:23,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:23,366 INFO L481 AbstractCegarLoop]: Abstraction has 5878 states and 6260 transitions. [2021-10-11 00:34:23,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:23,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6260 transitions. [2021-10-11 00:34:23,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2021-10-11 00:34:23,384 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:23,386 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2021-10-11 00:34:23,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-11 00:34:23,607 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:23,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:23,607 INFO L82 PathProgramCache]: Analyzing trace with hash -913502566, now seen corresponding path program 1 times [2021-10-11 00:34:23,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:23,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302463324] [2021-10-11 00:34:23,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3795 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 3310 trivial. 0 not checked. [2021-10-11 00:34:24,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302463324] [2021-10-11 00:34:24,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:24,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:34:24,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100367743] [2021-10-11 00:34:24,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:24,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:24,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:24,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:24,733 INFO L87 Difference]: Start difference. First operand 5878 states and 6260 transitions. Second operand 3 states. [2021-10-11 00:34:25,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:25,285 INFO L93 Difference]: Finished difference Result 11930 states and 12707 transitions. [2021-10-11 00:34:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:25,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1099 [2021-10-11 00:34:25,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:25,297 INFO L225 Difference]: With dead ends: 11930 [2021-10-11 00:34:25,297 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:34:25,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:25,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:34:25,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:34:25,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:34:25,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:34:25,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1099 [2021-10-11 00:34:25,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:25,304 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:34:25,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:25,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:34:25,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:34:25,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-11 00:34:25,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:34:25,634 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 27 [2021-10-11 00:34:25,815 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 27 [2021-10-11 00:34:25,818 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-11 00:34:25,818 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-11 00:34:25,818 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-11 00:34:25,818 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-11 00:34:25,819 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-11 00:34:25,819 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,819 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,819 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,819 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-11 00:34:25,819 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-11 00:34:25,819 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-11 00:34:25,819 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-11 00:34:25,820 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-11 00:34:25,820 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-11 00:34:25,820 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-11 00:34:25,820 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-11 00:34:25,820 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,820 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,820 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,820 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-11 00:34:25,820 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-11 00:34:25,821 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-11 00:34:25,821 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-11 00:34:25,821 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-11 00:34:25,821 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-11 00:34:25,821 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-11 00:34:25,821 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-11 00:34:25,821 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-11 00:34:25,821 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,822 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,822 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,822 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-11 00:34:25,822 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-11 00:34:25,822 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-11 00:34:25,822 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-11 00:34:25,822 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-11 00:34:25,822 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-11 00:34:25,822 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-11 00:34:25,823 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,823 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,823 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,823 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-11 00:34:25,823 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-11 00:34:25,823 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-11 00:34:25,823 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-11 00:34:25,823 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-11 00:34:25,824 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-11 00:34:25,824 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-11 00:34:25,824 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-11 00:34:25,824 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,824 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,824 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,824 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-11 00:34:25,824 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-11 00:34:25,824 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-11 00:34:25,825 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-11 00:34:25,825 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-11 00:34:25,825 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-11 00:34:25,825 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-11 00:34:25,825 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-11 00:34:25,825 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,825 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,825 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,826 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-11 00:34:25,826 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-11 00:34:25,826 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-11 00:34:25,826 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-11 00:34:25,826 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-11 00:34:25,826 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-11 00:34:25,826 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-11 00:34:25,826 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-11 00:34:25,826 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-11 00:34:25,827 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,827 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,827 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,827 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-11 00:34:25,827 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-11 00:34:25,827 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-11 00:34:25,827 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-11 00:34:25,827 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-11 00:34:25,827 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-11 00:34:25,828 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-11 00:34:25,828 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:34:25,828 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,828 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,828 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,828 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-11 00:34:25,828 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-11 00:34:25,828 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-11 00:34:25,828 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-11 00:34:25,829 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-11 00:34:25,829 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-11 00:34:25,829 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-11 00:34:25,829 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-11 00:34:25,829 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-11 00:34:25,829 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,829 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,829 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,829 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-11 00:34:25,830 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-11 00:34:25,830 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-11 00:34:25,830 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-11 00:34:25,830 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-11 00:34:25,830 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-11 00:34:25,830 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-11 00:34:25,830 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-11 00:34:25,830 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,831 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,831 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,831 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-11 00:34:25,831 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-11 00:34:25,831 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-11 00:34:25,831 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:34:25,831 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-11 00:34:25,831 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2021-10-11 00:34:25,831 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-11 00:34:25,832 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-11 00:34:25,832 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-11 00:34:25,832 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-11 00:34:25,832 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,832 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,832 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,832 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-11 00:34:25,832 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-11 00:34:25,832 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-11 00:34:25,833 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-11 00:34:25,833 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-11 00:34:25,833 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-11 00:34:25,833 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-11 00:34:25,833 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-11 00:34:25,833 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,833 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,833 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,834 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-11 00:34:25,834 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-11 00:34:25,834 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-11 00:34:25,834 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-11 00:34:25,834 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-11 00:34:25,834 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-11 00:34:25,834 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-11 00:34:25,834 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-11 00:34:25,834 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,835 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,835 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,835 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-11 00:34:25,835 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-11 00:34:25,835 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-11 00:34:25,835 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-11 00:34:25,835 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-11 00:34:25,835 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-11 00:34:25,836 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-11 00:34:25,836 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-11 00:34:25,836 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,836 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,836 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,836 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-11 00:34:25,836 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-11 00:34:25,836 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-11 00:34:25,836 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-11 00:34:25,837 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-11 00:34:25,837 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-11 00:34:25,837 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-11 00:34:25,837 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-11 00:34:25,837 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,837 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,837 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,837 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-11 00:34:25,837 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-11 00:34:25,838 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-11 00:34:25,838 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-11 00:34:25,838 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-11 00:34:25,838 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-11 00:34:25,838 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-11 00:34:25,838 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-11 00:34:25,838 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,838 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,839 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-11 00:34:25,839 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-11 00:34:25,839 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-11 00:34:25,839 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-11 00:34:25,839 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-11 00:34:25,839 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-11 00:34:25,839 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-11 00:34:25,839 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-11 00:34:25,839 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,840 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,840 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-11 00:34:25,840 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:34:25,840 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-11 00:34:25,840 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-11 00:34:25,840 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-11 00:34:25,840 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-11 00:34:25,840 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-11 00:34:25,840 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,841 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,841 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and .cse0 (<= 10 ~a21~0)) (and (<= ~a21~0 7) (<= (+ ~a12~0 43) 0) (<= ~a15~0 8)) (and .cse0 (<= ~a12~0 78)) (and (<= 6 ~a15~0) .cse0) (and .cse0 (<= ~a21~0 8)))) [2021-10-11 00:34:25,841 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-11 00:34:25,841 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-11 00:34:25,841 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-11 00:34:25,841 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-11 00:34:25,842 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-11 00:34:25,842 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-11 00:34:25,842 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-11 00:34:25,842 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-11 00:34:25,842 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,842 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,842 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-11 00:34:25,842 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-11 00:34:25,843 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-11 00:34:25,843 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-11 00:34:25,843 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-11 00:34:25,843 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-11 00:34:25,843 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-11 00:34:25,843 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-11 00:34:25,843 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,843 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,843 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:34:25,844 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-11 00:34:25,844 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-11 00:34:25,844 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-11 00:34:25,844 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-11 00:34:25,844 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-11 00:34:25,844 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-11 00:34:25,844 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,844 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,845 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-11 00:34:25,845 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,845 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-11 00:34:25,845 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and .cse0 (<= 10 ~a21~0)) (and (<= ~a21~0 7) (<= (+ ~a12~0 43) 0) (<= ~a15~0 8)) (and .cse0 (<= ~a12~0 78)) (and (<= 6 ~a15~0) .cse0) (and .cse0 (<= ~a21~0 8)))) [2021-10-11 00:34:25,845 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-11 00:34:25,845 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-11 00:34:25,845 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-11 00:34:25,845 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-11 00:34:25,846 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-11 00:34:25,846 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-11 00:34:25,846 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-11 00:34:25,846 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-11 00:34:25,846 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-11 00:34:25,846 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,846 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,846 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-11 00:34:25,846 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-11 00:34:25,847 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-11 00:34:25,847 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-11 00:34:25,847 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-11 00:34:25,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:34:25 BoogieIcfgContainer [2021-10-11 00:34:25,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:34:25,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:34:25,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:34:25,864 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:34:25,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:42" (3/4) ... [2021-10-11 00:34:25,867 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:34:25,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:34:25,895 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:34:25,897 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:34:25,898 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:34:26,061 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92354adb-08f1-4261-96af-6303927bdb1f/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:34:26,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:34:26,063 INFO L168 Benchmark]: Toolchain (without parser) took 46376.35 ms. Allocated memory was 96.5 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 53.7 MB in the beginning and 1.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 984.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:26,063 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 72.1 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:34:26,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.18 ms. Allocated memory is still 96.5 MB. Free memory was 53.5 MB in the beginning and 50.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:26,064 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.81 ms. Allocated memory is still 96.5 MB. Free memory was 50.9 MB in the beginning and 41.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:26,065 INFO L168 Benchmark]: Boogie Preprocessor took 126.67 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 41.1 MB in the beginning and 85.5 MB in the end (delta: -44.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:26,065 INFO L168 Benchmark]: RCFGBuilder took 1889.84 ms. Allocated memory was 117.4 MB in the beginning and 178.3 MB in the end (delta: 60.8 MB). Free memory was 85.5 MB in the beginning and 138.9 MB in the end (delta: -53.5 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:26,066 INFO L168 Benchmark]: TraceAbstraction took 43265.97 ms. Allocated memory was 178.3 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 138.9 MB in the beginning and 1.1 GB in the end (delta: -991.7 MB). Peak memory consumption was 969.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:26,066 INFO L168 Benchmark]: Witness Printer took 198.46 ms. Allocated memory is still 2.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:26,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 72.1 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 770.18 ms. Allocated memory is still 96.5 MB. Free memory was 53.5 MB in the beginning and 50.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 118.81 ms. Allocated memory is still 96.5 MB. Free memory was 50.9 MB in the beginning and 41.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 126.67 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 41.1 MB in the beginning and 85.5 MB in the end (delta: -44.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1889.84 ms. Allocated memory was 117.4 MB in the beginning and 178.3 MB in the end (delta: 60.8 MB). Free memory was 85.5 MB in the beginning and 138.9 MB in the end (delta: -53.5 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 43265.97 ms. Allocated memory was 178.3 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 138.9 MB in the beginning and 1.1 GB in the end (delta: -991.7 MB). Peak memory consumption was 969.1 MB. Max. memory is 16.1 GB. * Witness Printer took 198.46 ms. Allocated memory is still 2.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 182]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((a24 == 1 && 10 <= a21) || ((a21 <= 7 && a12 + 43 <= 0) && a15 <= 8)) || (a24 == 1 && a12 <= 78)) || (6 <= a15 && a24 == 1)) || (a24 == 1 && a21 <= 8) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((a24 == 1 && 10 <= a21) || ((a21 <= 7 && a12 + 43 <= 0) && a15 <= 8)) || (a24 == 1 && a12 <= 78)) || (6 <= a15 && a24 == 1)) || (a24 == 1 && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 42.6s, OverallIterations: 19, TraceHistogramMax: 10, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1411 SDtfs, 2376 SDslu, 100 SDs, 0 SdLazy, 9785 SolverSat, 1141 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6259 GetRequests, 6209 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5878occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 5162 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 79 NumberOfFragments, 83 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5630 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 660 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 15624 NumberOfCodeBlocks, 15624 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 15595 ConstructedInterpolants, 0 QuantifiedInterpolants, 32211784 SizeOfPredicates, 0 NumberOfNonLiveVariables, 7954 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 29 InterpolantComputations, 18 PerfectInterpolantSequences, 32368/33160 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...