./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt --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 e2bc1e4005bcecf5516ad11dc2c84ed2ceb2f363 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:25:04,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:25:04,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:25:04,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:25:04,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:25:04,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:25:04,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:25:04,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:25:04,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:25:04,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:25:04,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:25:04,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:25:04,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:25:04,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:25:04,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:25:04,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:25:04,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:25:04,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:25:04,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:25:04,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:25:04,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:25:04,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:25:04,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:25:04,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:25:04,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:25:04,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:25:04,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:25:04,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:25:04,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:25:04,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:25:04,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:25:04,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:25:04,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:25:04,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:25:04,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:25:04,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:25:04,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:25:04,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:25:04,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:25:04,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:25:04,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:25:04,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:25:04,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:25:04,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:25:04,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:25:04,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:25:04,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:25:04,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:25:04,352 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:25:04,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:25:04,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:25:04,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:25:04,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:25:04,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:25:04,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:25:04,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:25:04,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:25:04,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:25:04,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:25:04,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:25:04,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:25:04,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:25:04,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:25:04,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:25:04,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:25:04,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:25:04,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:25:04,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:25:04,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:25:04,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:25:04,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:25:04,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:25:04,358 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_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2bc1e4005bcecf5516ad11dc2c84ed2ceb2f363 [2021-10-13 01:25:04,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:25:04,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:25:04,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:25:04,602 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:25:04,603 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:25:04,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem10_label13.c [2021-10-13 01:25:04,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/data/a09b06d19/5c61636dfd654c4881b68ca7eacfd0be/FLAG8eea27da6 [2021-10-13 01:25:05,271 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:25:05,271 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/sv-benchmarks/c/eca-rers2012/Problem10_label13.c [2021-10-13 01:25:05,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/data/a09b06d19/5c61636dfd654c4881b68ca7eacfd0be/FLAG8eea27da6 [2021-10-13 01:25:05,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/data/a09b06d19/5c61636dfd654c4881b68ca7eacfd0be [2021-10-13 01:25:05,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:25:05,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:25:05,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:25:05,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:25:05,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:25:05,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:05" (1/1) ... [2021-10-13 01:25:05,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59732859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05, skipping insertion in model container [2021-10-13 01:25:05,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:05" (1/1) ... [2021-10-13 01:25:05,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:25:05,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:25:05,845 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/sv-benchmarks/c/eca-rers2012/Problem10_label13.c[6334,6347] [2021-10-13 01:25:05,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:25:05,992 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:25:06,022 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/sv-benchmarks/c/eca-rers2012/Problem10_label13.c[6334,6347] [2021-10-13 01:25:06,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:25:06,129 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:25:06,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06 WrapperNode [2021-10-13 01:25:06,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:25:06,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:25:06,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:25:06,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:25:06,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:25:06,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:25:06,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:25:06,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:25:06,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:25:06,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:25:06,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:25:06,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:25:06,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (1/1) ... [2021-10-13 01:25:06,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:25:06,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:06,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:06,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:25:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:25:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:25:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:25:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:25:07,586 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:25:07,586 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 01:25:07,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:07 BoogieIcfgContainer [2021-10-13 01:25:07,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:25:07,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:25:07,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:25:07,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:25:07,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:25:05" (1/3) ... [2021-10-13 01:25:07,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67621e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:25:07, skipping insertion in model container [2021-10-13 01:25:07,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:06" (2/3) ... [2021-10-13 01:25:07,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67621e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:25:07, skipping insertion in model container [2021-10-13 01:25:07,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:07" (3/3) ... [2021-10-13 01:25:07,596 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label13.c [2021-10-13 01:25:07,602 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:25:07,602 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:25:07,651 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:25:07,657 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 01:25:07,657 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:25:07,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-13 01:25:07,687 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:07,687 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:07,688 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:07,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:07,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1246856209, now seen corresponding path program 1 times [2021-10-13 01:25:07,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:07,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142565755] [2021-10-13 01:25:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:07,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:07,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:07,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:07,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142565755] [2021-10-13 01:25:07,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142565755] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:07,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:07,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:25:07,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981276138] [2021-10-13 01:25:07,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:25:07,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:08,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:08,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:08,015 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:08,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:08,878 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2021-10-13 01:25:08,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:08,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-13 01:25:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:08,895 INFO L225 Difference]: With dead ends: 552 [2021-10-13 01:25:08,895 INFO L226 Difference]: Without dead ends: 282 [2021-10-13 01:25:08,902 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:08,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-13 01:25:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-13 01:25:08,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.3416370106761566) internal successors, (377), 281 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:08,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2021-10-13 01:25:08,953 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 55 [2021-10-13 01:25:08,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:08,954 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2021-10-13 01:25:08,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:08,954 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2021-10-13 01:25:08,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-10-13 01:25:08,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:08,960 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 01:25:08,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:25:08,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:08,962 INFO L82 PathProgramCache]: Analyzing trace with hash -2042555292, now seen corresponding path program 1 times [2021-10-13 01:25:08,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:08,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372575720] [2021-10-13 01:25:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:08,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:09,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:09,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372575720] [2021-10-13 01:25:09,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372575720] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:09,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:09,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:25:09,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102076552] [2021-10-13 01:25:09,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:25:09,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:09,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:09,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:09,114 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:09,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:09,641 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2021-10-13 01:25:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:09,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-10-13 01:25:09,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:09,658 INFO L225 Difference]: With dead ends: 701 [2021-10-13 01:25:09,658 INFO L226 Difference]: Without dead ends: 421 [2021-10-13 01:25:09,659 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:09,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-13 01:25:09,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-13 01:25:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.2523809523809524) internal successors, (526), 420 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:09,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 526 transitions. [2021-10-13 01:25:09,687 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 526 transitions. Word has length 121 [2021-10-13 01:25:09,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:09,688 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 526 transitions. [2021-10-13 01:25:09,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:09,689 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 526 transitions. [2021-10-13 01:25:09,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-10-13 01:25:09,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:09,696 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 01:25:09,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:25:09,697 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:09,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:09,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1371951955, now seen corresponding path program 1 times [2021-10-13 01:25:09,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:09,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929624186] [2021-10-13 01:25:09,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:09,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:09,884 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:09,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:09,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929624186] [2021-10-13 01:25:09,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929624186] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:09,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:09,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:25:09,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334859934] [2021-10-13 01:25:09,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:25:09,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:09,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:09,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:09,893 INFO L87 Difference]: Start difference. First operand 421 states and 526 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:10,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:10,392 INFO L93 Difference]: Finished difference Result 979 states and 1209 transitions. [2021-10-13 01:25:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:10,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-10-13 01:25:10,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:10,397 INFO L225 Difference]: With dead ends: 979 [2021-10-13 01:25:10,398 INFO L226 Difference]: Without dead ends: 560 [2021-10-13 01:25:10,398 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:10,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-13 01:25:10,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-13 01:25:10,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2075134168157424) internal successors, (675), 559 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:10,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 675 transitions. [2021-10-13 01:25:10,417 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 675 transitions. Word has length 128 [2021-10-13 01:25:10,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:10,418 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 675 transitions. [2021-10-13 01:25:10,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:10,418 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 675 transitions. [2021-10-13 01:25:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-10-13 01:25:10,425 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:10,425 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:10,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 01:25:10,425 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:10,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1762411064, now seen corresponding path program 1 times [2021-10-13 01:25:10,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:10,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731611835] [2021-10-13 01:25:10,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:10,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:10,686 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 38 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:10,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:10,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731611835] [2021-10-13 01:25:10,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731611835] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:25:10,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669149943] [2021-10-13 01:25:10,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:10,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:25:10,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:10,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:25:10,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 01:25:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:10,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:25:10,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:25:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:11,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669149943] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:11,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:25:11,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-10-13 01:25:11,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802815275] [2021-10-13 01:25:11,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:25:11,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:11,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:11,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:25:11,212 INFO L87 Difference]: Start difference. First operand 560 states and 675 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:11,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:11,775 INFO L93 Difference]: Finished difference Result 979 states and 1199 transitions. [2021-10-13 01:25:11,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:11,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-10-13 01:25:11,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:11,781 INFO L225 Difference]: With dead ends: 979 [2021-10-13 01:25:11,781 INFO L226 Difference]: Without dead ends: 977 [2021-10-13 01:25:11,782 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 53.2ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:25:11,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-13 01:25:11,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 699. [2021-10-13 01:25:11,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2736389684813754) internal successors, (889), 698 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:11,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 889 transitions. [2021-10-13 01:25:11,806 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 889 transitions. Word has length 130 [2021-10-13 01:25:11,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:11,807 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 889 transitions. [2021-10-13 01:25:11,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 889 transitions. [2021-10-13 01:25:11,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-10-13 01:25:11,813 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:11,813 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:11,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:12,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:25:12,037 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:12,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:12,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1726354278, now seen corresponding path program 1 times [2021-10-13 01:25:12,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:12,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061771316] [2021-10-13 01:25:12,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:12,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:12,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:12,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061771316] [2021-10-13 01:25:12,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061771316] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:12,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:12,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:25:12,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209471851] [2021-10-13 01:25:12,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:25:12,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:12,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:25:12,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:25:12,218 INFO L87 Difference]: Start difference. First operand 699 states and 889 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:12,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:12,801 INFO L93 Difference]: Finished difference Result 1271 states and 1641 transitions. [2021-10-13 01:25:12,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:25:12,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-10-13 01:25:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:12,806 INFO L225 Difference]: With dead ends: 1271 [2021-10-13 01:25:12,807 INFO L226 Difference]: Without dead ends: 713 [2021-10-13 01:25:12,808 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:25:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-10-13 01:25:12,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 699. [2021-10-13 01:25:12,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2664756446991403) internal successors, (884), 698 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:12,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 884 transitions. [2021-10-13 01:25:12,842 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 884 transitions. Word has length 173 [2021-10-13 01:25:12,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:12,843 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 884 transitions. [2021-10-13 01:25:12,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:12,843 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 884 transitions. [2021-10-13 01:25:12,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-10-13 01:25:12,847 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:12,847 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:12,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 01:25:12,848 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:12,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:12,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1617583127, now seen corresponding path program 1 times [2021-10-13 01:25:12,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:12,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916681445] [2021-10-13 01:25:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:12,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:13,126 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:13,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:13,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916681445] [2021-10-13 01:25:13,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916681445] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:13,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:13,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 01:25:13,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73436851] [2021-10-13 01:25:13,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 01:25:13,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:13,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:25:13,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:25:13,143 INFO L87 Difference]: Start difference. First operand 699 states and 884 transitions. Second operand has 7 states, 7 states have (on average 29.714285714285715) internal successors, (208), 6 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:13,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:13,799 INFO L93 Difference]: Finished difference Result 1312 states and 1677 transitions. [2021-10-13 01:25:13,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 01:25:13,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.714285714285715) internal successors, (208), 6 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2021-10-13 01:25:13,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:13,804 INFO L225 Difference]: With dead ends: 1312 [2021-10-13 01:25:13,804 INFO L226 Difference]: Without dead ends: 699 [2021-10-13 01:25:13,806 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.2ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:25:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-10-13 01:25:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2021-10-13 01:25:13,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2607449856733524) internal successors, (880), 698 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:13,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 880 transitions. [2021-10-13 01:25:13,850 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 880 transitions. Word has length 208 [2021-10-13 01:25:13,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:13,851 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 880 transitions. [2021-10-13 01:25:13,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.714285714285715) internal successors, (208), 6 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 880 transitions. [2021-10-13 01:25:13,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-10-13 01:25:13,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:13,855 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:13,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 01:25:13,856 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:13,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:13,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1784057475, now seen corresponding path program 1 times [2021-10-13 01:25:13,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:13,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350803983] [2021-10-13 01:25:13,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:13,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:14,008 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:14,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:14,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350803983] [2021-10-13 01:25:14,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350803983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:14,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:14,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:25:14,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117322627] [2021-10-13 01:25:14,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:25:14,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:14,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:14,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:14,012 INFO L87 Difference]: Start difference. First operand 699 states and 880 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:14,497 INFO L93 Difference]: Finished difference Result 1535 states and 2042 transitions. [2021-10-13 01:25:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:14,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244 [2021-10-13 01:25:14,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:14,503 INFO L225 Difference]: With dead ends: 1535 [2021-10-13 01:25:14,503 INFO L226 Difference]: Without dead ends: 977 [2021-10-13 01:25:14,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:14,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-13 01:25:14,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 838. [2021-10-13 01:25:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2592592592592593) internal successors, (1054), 837 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:14,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1054 transitions. [2021-10-13 01:25:14,527 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1054 transitions. Word has length 244 [2021-10-13 01:25:14,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:14,527 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1054 transitions. [2021-10-13 01:25:14,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:14,528 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1054 transitions. [2021-10-13 01:25:14,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-10-13 01:25:14,533 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:14,533 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:14,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 01:25:14,534 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:14,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:14,534 INFO L82 PathProgramCache]: Analyzing trace with hash -724262486, now seen corresponding path program 1 times [2021-10-13 01:25:14,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:14,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120848854] [2021-10-13 01:25:14,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:14,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 120 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:14,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:14,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120848854] [2021-10-13 01:25:14,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120848854] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:25:14,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074170040] [2021-10-13 01:25:14,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:14,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:25:14,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:14,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:25:14,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 01:25:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:14,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:25:14,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:25:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-13 01:25:15,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074170040] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:15,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:25:15,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-13 01:25:15,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661487662] [2021-10-13 01:25:15,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:25:15,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:15,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:15,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:25:15,712 INFO L87 Difference]: Start difference. First operand 838 states and 1054 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:16,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:16,176 INFO L93 Difference]: Finished difference Result 1813 states and 2295 transitions. [2021-10-13 01:25:16,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:16,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2021-10-13 01:25:16,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:16,181 INFO L225 Difference]: With dead ends: 1813 [2021-10-13 01:25:16,181 INFO L226 Difference]: Without dead ends: 1116 [2021-10-13 01:25:16,182 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.8ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:25:16,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-10-13 01:25:16,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-10-13 01:25:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.1713004484304932) internal successors, (1306), 1115 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:16,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1306 transitions. [2021-10-13 01:25:16,209 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1306 transitions. Word has length 287 [2021-10-13 01:25:16,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:16,210 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1306 transitions. [2021-10-13 01:25:16,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:16,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1306 transitions. [2021-10-13 01:25:16,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-10-13 01:25:16,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:16,218 INFO L512 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:16,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:16,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-13 01:25:16,445 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:16,445 INFO L82 PathProgramCache]: Analyzing trace with hash -524971941, now seen corresponding path program 1 times [2021-10-13 01:25:16,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:16,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761272301] [2021-10-13 01:25:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:16,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:16,595 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-13 01:25:16,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:16,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761272301] [2021-10-13 01:25:16,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761272301] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:16,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:16,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:25:16,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629671941] [2021-10-13 01:25:16,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:25:16,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:16,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:16,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:16,598 INFO L87 Difference]: Start difference. First operand 1116 states and 1306 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:17,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:17,136 INFO L93 Difference]: Finished difference Result 2923 states and 3437 transitions. [2021-10-13 01:25:17,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:17,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 354 [2021-10-13 01:25:17,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:17,138 INFO L225 Difference]: With dead ends: 2923 [2021-10-13 01:25:17,138 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:25:17,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:17,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:25:17,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:25:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:25:17,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 354 [2021-10-13 01:25:17,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:17,145 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:25:17,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:17,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:25:17,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:25:17,148 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:25:17,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 01:25:17,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:25:17,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:25:17,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:25:17,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:25:17,262 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-13 01:25:17,262 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-13 01:25:17,262 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-13 01:25:17,262 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-13 01:25:17,262 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-13 01:25:17,262 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 01:25:17,263 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 01:25:17,264 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 01:25:17,264 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 01:25:17,264 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 01:25:17,264 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-13 01:25:17,264 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-13 01:25:17,264 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-13 01:25:17,264 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-13 01:25:17,264 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-13 01:25:17,264 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-13 01:25:17,265 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,266 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 01:25:17,267 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 01:25:17,268 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 01:25:17,268 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 01:25:17,268 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 01:25:17,268 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-13 01:25:17,268 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-13 01:25:17,268 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-13 01:25:17,268 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-13 01:25:17,268 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,268 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,269 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,269 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,269 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,269 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,269 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-13 01:25:17,269 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-13 01:25:17,269 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 01:25:17,269 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 01:25:17,269 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 01:25:17,270 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 01:25:17,270 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 01:25:17,270 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 01:25:17,270 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-13 01:25:17,270 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-13 01:25:17,270 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-13 01:25:17,270 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,270 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,270 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,271 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,271 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,271 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-13 01:25:17,271 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-13 01:25:17,271 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-13 01:25:17,271 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-13 01:25:17,271 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 01:25:17,271 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 01:25:17,272 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 01:25:17,272 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 01:25:17,272 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 01:25:17,272 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-13 01:25:17,272 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-13 01:25:17,272 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-13 01:25:17,272 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-13 01:25:17,272 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-13 01:25:17,272 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,273 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,273 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,273 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,273 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,273 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-13 01:25:17,273 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:25:17,273 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 01:25:17,273 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 01:25:17,273 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 01:25:17,274 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 01:25:17,274 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 01:25:17,274 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (<= 8 ~a19~0) .cse1 .cse2) (and (= ~a10~0 0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~a1~0 33)) (and .cse0 .cse1 (= ~a10~0 2) .cse2) (and (= ~a10~0 1) .cse1 .cse2))) [2021-10-13 01:25:17,274 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-13 01:25:17,274 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-13 01:25:17,274 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-13 01:25:17,275 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 01:25:17,276 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 01:25:17,276 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 01:25:17,276 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 01:25:17,276 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 01:25:17,276 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-13 01:25:17,276 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-13 01:25:17,276 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-13 01:25:17,276 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-13 01:25:17,276 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 01:25:17,277 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 01:25:17,278 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 01:25:17,278 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 01:25:17,278 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-13 01:25:17,278 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-13 01:25:17,278 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-13 01:25:17,278 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-13 01:25:17,278 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,278 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,278 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,279 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,279 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:25:17,279 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,279 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-13 01:25:17,279 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-13 01:25:17,279 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-13 01:25:17,279 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-13 01:25:17,279 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 01:25:17,279 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 01:25:17,280 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 01:25:17,280 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 01:25:17,280 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 01:25:17,280 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-13 01:25:17,280 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-13 01:25:17,280 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-13 01:25:17,280 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (<= 8 ~a19~0) .cse1 .cse2) (and (= ~a10~0 0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~a1~0 33)) (and .cse0 .cse1 (= ~a10~0 2) .cse2) (and (= ~a10~0 1) .cse1 .cse2))) [2021-10-13 01:25:17,280 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-13 01:25:17,281 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,281 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,281 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,281 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,281 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 01:25:17,281 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,281 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,281 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-13 01:25:17,281 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-13 01:25:17,282 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-13 01:25:17,282 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 01:25:17,282 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 01:25:17,282 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 01:25:17,282 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 01:25:17,282 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 01:25:17,282 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 01:25:17,282 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:25:17,283 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 179) no Hoare annotation was computed. [2021-10-13 01:25:17,283 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-13 01:25:17,283 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-13 01:25:17,283 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-13 01:25:17,283 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-13 01:25:17,283 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,283 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,283 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,283 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,284 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,284 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 01:25:17,284 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-13 01:25:17,284 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-13 01:25:17,284 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-13 01:25:17,284 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 01:25:17,284 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 01:25:17,284 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 01:25:17,284 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 01:25:17,285 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 01:25:17,285 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 01:25:17,289 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:25:17,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:25:17 BoogieIcfgContainer [2021-10-13 01:25:17,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:25:17,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:25:17,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:25:17,307 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:25:17,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:07" (3/4) ... [2021-10-13 01:25:17,315 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:25:17,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 01:25:17,350 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 01:25:17,351 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:25:17,352 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:25:17,483 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:25:17,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:25:17,485 INFO L168 Benchmark]: Toolchain (without parser) took 11936.43 ms. Allocated memory was 100.7 MB in the beginning and 184.5 MB in the end (delta: 83.9 MB). Free memory was 65.3 MB in the beginning and 122.9 MB in the end (delta: -57.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:17,486 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:25:17,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.52 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 65.3 MB in the beginning and 82.1 MB in the end (delta: -16.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:17,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.09 ms. Allocated memory is still 123.7 MB. Free memory was 82.1 MB in the beginning and 74.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:17,487 INFO L168 Benchmark]: Boogie Preprocessor took 76.79 ms. Allocated memory is still 123.7 MB. Free memory was 74.3 MB in the beginning and 69.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:17,487 INFO L168 Benchmark]: RCFGBuilder took 1242.08 ms. Allocated memory is still 123.7 MB. Free memory was 69.1 MB in the beginning and 55.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:17,487 INFO L168 Benchmark]: TraceAbstraction took 9716.12 ms. Allocated memory was 123.7 MB in the beginning and 184.5 MB in the end (delta: 60.8 MB). Free memory was 55.1 MB in the beginning and 137.6 MB in the end (delta: -82.5 MB). Peak memory consumption was 72.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:17,488 INFO L168 Benchmark]: Witness Printer took 177.54 ms. Allocated memory is still 184.5 MB. Free memory was 137.6 MB in the beginning and 122.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:17,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 580.52 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 65.3 MB in the beginning and 82.1 MB in the end (delta: -16.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 137.09 ms. Allocated memory is still 123.7 MB. Free memory was 82.1 MB in the beginning and 74.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.79 ms. Allocated memory is still 123.7 MB. Free memory was 74.3 MB in the beginning and 69.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1242.08 ms. Allocated memory is still 123.7 MB. Free memory was 69.1 MB in the beginning and 55.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9716.12 ms. Allocated memory was 123.7 MB in the beginning and 184.5 MB in the end (delta: 60.8 MB). Free memory was 55.1 MB in the beginning and 137.6 MB in the end (delta: -82.5 MB). Peak memory consumption was 72.6 MB. Max. memory is 16.1 GB. * Witness Printer took 177.54 ms. Allocated memory is still 184.5 MB. Free memory was 137.6 MB in the beginning and 122.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 179]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9639.7ms, OverallIterations: 9, TraceHistogramMax: 4, EmptinessCheckTime: 55.7ms, AutomataDifference: 5312.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 113.2ms, InitialAbstractionConstructionTime: 16.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 755 SDtfs, 884 SDslu, 62 SDs, 0 SdLazy, 3991 SolverSat, 573 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3820.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 164.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1116occurred in iteration=8, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 234.9ms AutomataMinimizationTime, 9 MinimizatonAttempts, 431 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 35 NumberOfFragments, 121 HoareAnnotationTreeSize, 3 FomulaSimplifications, 888 FormulaSimplificationTreeSizeReduction, 47.0ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 59.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 139.6ms SsaConstructionTime, 450.7ms SatisfiabilityAnalysisTime, 2447.1ms InterpolantComputationTime, 2117 NumberOfCodeBlocks, 2117 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2106 ConstructedInterpolants, 0 QuantifiedInterpolants, 9359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 634 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 1355/1464 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((a19 <= 9 && 8 <= a19) && 14 == a4) && a12 == 0) || ((a10 == 0 && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a12 == 0) && a1 <= 33)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a19 <= 9 && 8 <= a19) && 14 == a4) && a12 == 0) || ((a10 == 0 && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a12 == 0) && a1 <= 33)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 01:25:17,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9f9c7-d547-49ab-a4a9-381760510ae8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...