./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label30.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg --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 46305506117a7249be58d8d8d8c60453578281c1cbb0dca593851bdc92c5fe11 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:05:28,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:05:28,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:05:28,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:05:28,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:05:28,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:05:28,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:05:28,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:05:28,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:05:28,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:05:28,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:05:28,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:05:28,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:05:28,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:05:28,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:05:28,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:05:28,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:05:28,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:05:28,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:05:28,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:05:28,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:05:28,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:05:28,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:05:28,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:05:28,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:05:28,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:05:28,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:05:28,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:05:28,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:05:28,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:05:28,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:05:28,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:05:28,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:05:28,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:05:28,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:05:28,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:05:28,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:05:28,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:05:28,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:05:28,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:05:28,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:05:28,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:05:28,509 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:05:28,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:05:28,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:05:28,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:05:28,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:05:28,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:05:28,513 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:05:28,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:05:28,513 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:05:28,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:05:28,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:05:28,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:05:28,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:05:28,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:05:28,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:05:28,516 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:05:28,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:05:28,517 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:05:28,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:05:28,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:05:28,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:05:28,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:05:28,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:05:28,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:05:28,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:05:28,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:05:28,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:05:28,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:05:28,520 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:05:28,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:05:28,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:05:28,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:05:28,523 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_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46305506117a7249be58d8d8d8c60453578281c1cbb0dca593851bdc92c5fe11 [2021-10-28 09:05:28,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:05:28,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:05:28,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:05:28,971 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:05:28,985 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:05:28,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/eca-rers2012/Problem14_label30.c [2021-10-28 09:05:29,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/data/2e82f9c8f/f80d232c4cb6492f9fa4e9fb0cc90134/FLAG656d84cd8 [2021-10-28 09:05:29,895 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:05:29,896 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/sv-benchmarks/c/eca-rers2012/Problem14_label30.c [2021-10-28 09:05:29,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/data/2e82f9c8f/f80d232c4cb6492f9fa4e9fb0cc90134/FLAG656d84cd8 [2021-10-28 09:05:30,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/data/2e82f9c8f/f80d232c4cb6492f9fa4e9fb0cc90134 [2021-10-28 09:05:30,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:05:30,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:05:30,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:05:30,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:05:30,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:05:30,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:30,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bf2e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30, skipping insertion in model container [2021-10-28 09:05:30,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:30,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:05:30,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:05:30,454 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_b66ed16a-2b77-4508-8f2a-13c187396cf9/sv-benchmarks/c/eca-rers2012/Problem14_label30.c[4533,4546] [2021-10-28 09:05:30,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:05:30,774 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:05:30,801 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_b66ed16a-2b77-4508-8f2a-13c187396cf9/sv-benchmarks/c/eca-rers2012/Problem14_label30.c[4533,4546] [2021-10-28 09:05:30,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:05:30,942 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:05:30,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30 WrapperNode [2021-10-28 09:05:30,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:05:30,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:05:30,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:05:30,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:05:30,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:30,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:31,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:05:31,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:05:31,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:05:31,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:05:31,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:31,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:31,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:31,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:31,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:31,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:31,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:31,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:05:31,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:05:31,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:05:31,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:05:31,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (1/1) ... [2021-10-28 09:05:31,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:05:31,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:31,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:31,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:05:31,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:05:31,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:05:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:05:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:05:33,077 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:05:33,077 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 09:05:33,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:05:33 BoogieIcfgContainer [2021-10-28 09:05:33,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:05:33,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:05:33,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:05:33,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:05:33,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:05:30" (1/3) ... [2021-10-28 09:05:33,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7605f451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:05:33, skipping insertion in model container [2021-10-28 09:05:33,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:30" (2/3) ... [2021-10-28 09:05:33,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7605f451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:05:33, skipping insertion in model container [2021-10-28 09:05:33,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:05:33" (3/3) ... [2021-10-28 09:05:33,095 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label30.c [2021-10-28 09:05:33,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:05:33,107 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:05:33,176 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:05:33,184 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:05:33,184 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:05:33,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:33,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-28 09:05:33,222 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:33,223 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:33,224 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:33,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:33,231 INFO L85 PathProgramCache]: Analyzing trace with hash 712930081, now seen corresponding path program 1 times [2021-10-28 09:05:33,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:33,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722972870] [2021-10-28 09:05:33,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:33,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:05:33,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:33,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722972870] [2021-10-28 09:05:33,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722972870] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:33,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:33,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:05:33,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492943121] [2021-10-28 09:05:33,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:05:33,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:33,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:33,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:33,759 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:35,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:35,152 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2021-10-28 09:05:35,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:05:35,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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 43 [2021-10-28 09:05:35,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:35,172 INFO L225 Difference]: With dead ends: 685 [2021-10-28 09:05:35,172 INFO L226 Difference]: Without dead ends: 360 [2021-10-28 09:05:35,176 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-28 09:05:35,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-28 09:05:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:35,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-10-28 09:05:35,365 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 43 [2021-10-28 09:05:35,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:35,368 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-10-28 09:05:35,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:35,368 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-10-28 09:05:35,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-28 09:05:35,388 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:35,389 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:35,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:05:35,389 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:35,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1680680337, now seen corresponding path program 1 times [2021-10-28 09:05:35,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:35,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613856724] [2021-10-28 09:05:35,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:35,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:05:35,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:35,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613856724] [2021-10-28 09:05:35,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613856724] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:35,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:35,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:05:35,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034049965] [2021-10-28 09:05:35,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:05:35,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:35,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:05:35,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:05:35,722 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:37,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:37,094 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2021-10-28 09:05:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:05:37,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 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 122 [2021-10-28 09:05:37,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:37,101 INFO L225 Difference]: With dead ends: 1074 [2021-10-28 09:05:37,102 INFO L226 Difference]: Without dead ends: 716 [2021-10-28 09:05:37,108 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:05:37,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-28 09:05:37,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-10-28 09:05:37,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:37,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2021-10-28 09:05:37,194 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 122 [2021-10-28 09:05:37,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:37,195 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2021-10-28 09:05:37,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:37,196 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2021-10-28 09:05:37,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-28 09:05:37,203 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:37,203 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:37,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:05:37,204 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:37,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:37,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1572572784, now seen corresponding path program 1 times [2021-10-28 09:05:37,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:37,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496671476] [2021-10-28 09:05:37,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:37,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:05:37,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:37,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496671476] [2021-10-28 09:05:37,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496671476] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:05:37,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81393782] [2021-10-28 09:05:37,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:37,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:05:37,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:37,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:05:37,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:05:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:37,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:05:37,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:05:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-28 09:05:38,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81393782] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:38,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:05:38,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-28 09:05:38,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731852846] [2021-10-28 09:05:38,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:05:38,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:38,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:38,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:05:38,350 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:39,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:39,304 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2021-10-28 09:05:39,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:05:39,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 148 [2021-10-28 09:05:39,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:39,324 INFO L225 Difference]: With dead ends: 1252 [2021-10-28 09:05:39,325 INFO L226 Difference]: Without dead ends: 1250 [2021-10-28 09:05:39,326 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:05:39,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-28 09:05:39,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2021-10-28 09:05:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2021-10-28 09:05:39,366 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 148 [2021-10-28 09:05:39,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:39,371 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2021-10-28 09:05:39,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:39,373 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2021-10-28 09:05:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-10-28 09:05:39,379 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:39,379 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:39,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:39,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:05:39,593 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:39,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:39,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1240533636, now seen corresponding path program 1 times [2021-10-28 09:05:39,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:39,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567224436] [2021-10-28 09:05:39,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:39,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 09:05:39,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:39,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567224436] [2021-10-28 09:05:39,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567224436] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:39,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:39,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:05:39,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542892618] [2021-10-28 09:05:39,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:05:39,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:39,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:05:39,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:05:39,943 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:40,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:40,997 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2021-10-28 09:05:40,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:05:40,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 202 [2021-10-28 09:05:41,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:41,013 INFO L225 Difference]: With dead ends: 1993 [2021-10-28 09:05:41,013 INFO L226 Difference]: Without dead ends: 1072 [2021-10-28 09:05:41,015 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:05:41,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-28 09:05:41,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-10-28 09:05:41,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:41,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2021-10-28 09:05:41,053 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 202 [2021-10-28 09:05:41,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:41,054 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2021-10-28 09:05:41,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:41,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2021-10-28 09:05:41,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-10-28 09:05:41,059 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:41,059 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2021-10-28 09:05:41,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:05:41,060 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:41,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:41,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2045120000, now seen corresponding path program 1 times [2021-10-28 09:05:41,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:41,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873928782] [2021-10-28 09:05:41,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:41,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 81 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:05:41,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:41,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873928782] [2021-10-28 09:05:41,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873928782] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:05:41,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457448776] [2021-10-28 09:05:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:41,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:05:41,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:41,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:05:41,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:05:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:41,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:05:41,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:05:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-28 09:05:42,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457448776] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:42,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:05:42,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-28 09:05:42,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579284328] [2021-10-28 09:05:42,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:05:42,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:42,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:42,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:05:42,178 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:42,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:42,981 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2021-10-28 09:05:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:05:42,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 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 214 [2021-10-28 09:05:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:42,991 INFO L225 Difference]: With dead ends: 2320 [2021-10-28 09:05:42,992 INFO L226 Difference]: Without dead ends: 1250 [2021-10-28 09:05:42,994 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:05:42,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-28 09:05:43,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2021-10-28 09:05:43,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:43,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2021-10-28 09:05:43,031 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 214 [2021-10-28 09:05:43,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:43,036 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2021-10-28 09:05:43,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2021-10-28 09:05:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-10-28 09:05:43,040 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:43,042 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2021-10-28 09:05:43,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:43,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:05:43,265 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:43,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:43,266 INFO L85 PathProgramCache]: Analyzing trace with hash 584825191, now seen corresponding path program 1 times [2021-10-28 09:05:43,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:43,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659218746] [2021-10-28 09:05:43,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:43,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:43,471 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:05:43,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:43,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659218746] [2021-10-28 09:05:43,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659218746] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:43,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:43,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:05:43,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313898446] [2021-10-28 09:05:43,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:05:43,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:43,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:43,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:43,495 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:44,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:44,318 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2021-10-28 09:05:44,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:05:44,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 217 [2021-10-28 09:05:44,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:44,330 INFO L225 Difference]: With dead ends: 2854 [2021-10-28 09:05:44,331 INFO L226 Difference]: Without dead ends: 1784 [2021-10-28 09:05:44,333 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:44,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-10-28 09:05:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2021-10-28 09:05:44,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1289960740325296) internal successors, (2013), 1783 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:44,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2013 transitions. [2021-10-28 09:05:44,398 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2013 transitions. Word has length 217 [2021-10-28 09:05:44,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:44,399 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2013 transitions. [2021-10-28 09:05:44,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:44,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2013 transitions. [2021-10-28 09:05:44,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-10-28 09:05:44,406 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:44,407 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:44,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:05:44,408 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:44,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:44,408 INFO L85 PathProgramCache]: Analyzing trace with hash 909553423, now seen corresponding path program 1 times [2021-10-28 09:05:44,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:44,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116088754] [2021-10-28 09:05:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:44,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:44,662 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-10-28 09:05:44,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:44,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116088754] [2021-10-28 09:05:44,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116088754] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:44,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:44,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:05:44,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459499922] [2021-10-28 09:05:44,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:05:44,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:44,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:05:44,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:05:44,666 INFO L87 Difference]: Start difference. First operand 1784 states and 2013 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:45,609 INFO L93 Difference]: Finished difference Result 3624 states and 4105 transitions. [2021-10-28 09:05:45,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:05:45,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2021-10-28 09:05:45,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:45,624 INFO L225 Difference]: With dead ends: 3624 [2021-10-28 09:05:45,625 INFO L226 Difference]: Without dead ends: 1962 [2021-10-28 09:05:45,628 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:05:45,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-28 09:05:45,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-10-28 09:05:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.0846887268648346) internal successors, (1934), 1783 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:45,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1934 transitions. [2021-10-28 09:05:45,691 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1934 transitions. Word has length 334 [2021-10-28 09:05:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:45,692 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1934 transitions. [2021-10-28 09:05:45,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1934 transitions. [2021-10-28 09:05:45,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2021-10-28 09:05:45,704 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:45,704 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:45,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:05:45,705 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:45,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:45,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1133398873, now seen corresponding path program 1 times [2021-10-28 09:05:45,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:45,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528156204] [2021-10-28 09:05:45,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:45,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:45,901 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 09:05:45,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:45,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528156204] [2021-10-28 09:05:45,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528156204] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:45,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:45,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:05:45,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656194669] [2021-10-28 09:05:45,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:05:45,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:45,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:45,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:45,906 INFO L87 Difference]: Start difference. First operand 1784 states and 1934 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:46,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:46,713 INFO L93 Difference]: Finished difference Result 4278 states and 4675 transitions. [2021-10-28 09:05:46,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:05:46,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 429 [2021-10-28 09:05:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:46,733 INFO L225 Difference]: With dead ends: 4278 [2021-10-28 09:05:46,733 INFO L226 Difference]: Without dead ends: 2674 [2021-10-28 09:05:46,737 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:46,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-28 09:05:46,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140. [2021-10-28 09:05:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.071996259934549) internal successors, (2293), 2139 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:46,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2293 transitions. [2021-10-28 09:05:46,818 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2293 transitions. Word has length 429 [2021-10-28 09:05:46,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:46,825 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2293 transitions. [2021-10-28 09:05:46,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:46,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2293 transitions. [2021-10-28 09:05:46,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2021-10-28 09:05:46,841 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:46,842 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:46,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:05:46,842 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:46,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:46,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1575884654, now seen corresponding path program 1 times [2021-10-28 09:05:46,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:46,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55406178] [2021-10-28 09:05:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:46,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 09:05:47,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:47,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55406178] [2021-10-28 09:05:47,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55406178] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:47,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:47,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:05:47,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468767126] [2021-10-28 09:05:47,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:05:47,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:47,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:47,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:47,099 INFO L87 Difference]: Start difference. First operand 2140 states and 2293 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:47,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:47,833 INFO L93 Difference]: Finished difference Result 4812 states and 5228 transitions. [2021-10-28 09:05:47,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:05:47,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 436 [2021-10-28 09:05:47,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:47,856 INFO L225 Difference]: With dead ends: 4812 [2021-10-28 09:05:47,856 INFO L226 Difference]: Without dead ends: 2852 [2021-10-28 09:05:47,861 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:47,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-28 09:05:47,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852. [2021-10-28 09:05:47,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0785689231848474) internal successors, (3075), 2851 states have internal predecessors, (3075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:47,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3075 transitions. [2021-10-28 09:05:47,985 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3075 transitions. Word has length 436 [2021-10-28 09:05:47,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:47,987 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3075 transitions. [2021-10-28 09:05:47,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:47,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3075 transitions. [2021-10-28 09:05:47,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2021-10-28 09:05:47,992 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:47,993 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:47,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:05:47,994 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:47,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:47,995 INFO L85 PathProgramCache]: Analyzing trace with hash 193629255, now seen corresponding path program 1 times [2021-10-28 09:05:47,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:47,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569314593] [2021-10-28 09:05:47,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:47,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 483 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 09:05:48,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:48,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569314593] [2021-10-28 09:05:48,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569314593] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:48,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:48,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:05:48,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723696533] [2021-10-28 09:05:48,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:05:48,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:48,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:48,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:48,229 INFO L87 Difference]: Start difference. First operand 2852 states and 3075 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:48,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:48,942 INFO L93 Difference]: Finished difference Result 6592 states and 7212 transitions. [2021-10-28 09:05:48,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:05:48,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 477 [2021-10-28 09:05:48,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:48,967 INFO L225 Difference]: With dead ends: 6592 [2021-10-28 09:05:48,967 INFO L226 Difference]: Without dead ends: 3920 [2021-10-28 09:05:48,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:48,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-10-28 09:05:49,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2021-10-28 09:05:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0783047993264103) internal successors, (3842), 3563 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3842 transitions. [2021-10-28 09:05:49,135 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3842 transitions. Word has length 477 [2021-10-28 09:05:49,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:49,136 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3842 transitions. [2021-10-28 09:05:49,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:49,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3842 transitions. [2021-10-28 09:05:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2021-10-28 09:05:49,145 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:49,146 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:49,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:05:49,147 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:49,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:49,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1401009429, now seen corresponding path program 1 times [2021-10-28 09:05:49,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:49,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033396547] [2021-10-28 09:05:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:49,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 1074 proven. 104 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2021-10-28 09:05:49,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:49,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033396547] [2021-10-28 09:05:49,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033396547] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:05:49,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773516960] [2021-10-28 09:05:49,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:49,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:05:49,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:49,570 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:05:49,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:05:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:49,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:05:49,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:05:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2021-10-28 09:05:51,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773516960] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:51,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:05:51,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 09:05:51,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924534365] [2021-10-28 09:05:51,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:05:51,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:51,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:51,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:05:51,908 INFO L87 Difference]: Start difference. First operand 3564 states and 3842 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:52,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:52,695 INFO L93 Difference]: Finished difference Result 8016 states and 8685 transitions. [2021-10-28 09:05:52,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:05:52,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 622 [2021-10-28 09:05:52,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:52,727 INFO L225 Difference]: With dead ends: 8016 [2021-10-28 09:05:52,727 INFO L226 Difference]: Without dead ends: 4632 [2021-10-28 09:05:52,732 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 621 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:05:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-10-28 09:05:52,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2021-10-28 09:05:52,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.072086233999551) internal successors, (4774), 4453 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4774 transitions. [2021-10-28 09:05:52,923 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4774 transitions. Word has length 622 [2021-10-28 09:05:52,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:52,925 INFO L470 AbstractCegarLoop]: Abstraction has 4454 states and 4774 transitions. [2021-10-28 09:05:52,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4774 transitions. [2021-10-28 09:05:52,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2021-10-28 09:05:52,939 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:52,940 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:52,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:53,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 09:05:53,163 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:53,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash 636015795, now seen corresponding path program 1 times [2021-10-28 09:05:53,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:53,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558465941] [2021-10-28 09:05:53,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:53,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:53,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 1129 proven. 104 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2021-10-28 09:05:53,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:53,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558465941] [2021-10-28 09:05:53,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558465941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:05:53,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658455192] [2021-10-28 09:05:53,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:53,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:05:53,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:53,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:05:53,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 09:05:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:54,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:05:54,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:05:56,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2021-10-28 09:05:56,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658455192] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:56,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:05:56,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 09:05:56,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547778082] [2021-10-28 09:05:56,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:05:56,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:56,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:56,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:05:56,227 INFO L87 Difference]: Start difference. First operand 4454 states and 4774 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:56,842 INFO L93 Difference]: Finished difference Result 5346 states and 5726 transitions. [2021-10-28 09:05:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:05:56,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 634 [2021-10-28 09:05:56,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:56,879 INFO L225 Difference]: With dead ends: 5346 [2021-10-28 09:05:56,880 INFO L226 Difference]: Without dead ends: 5344 [2021-10-28 09:05:56,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:05:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-10-28 09:05:56,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4454. [2021-10-28 09:05:57,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0718616662923872) internal successors, (4773), 4453 states have internal predecessors, (4773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:57,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4773 transitions. [2021-10-28 09:05:57,058 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4773 transitions. Word has length 634 [2021-10-28 09:05:57,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:57,060 INFO L470 AbstractCegarLoop]: Abstraction has 4454 states and 4773 transitions. [2021-10-28 09:05:57,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:57,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4773 transitions. [2021-10-28 09:05:57,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2021-10-28 09:05:57,071 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:05:57,071 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:05:57,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:57,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:05:57,286 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:05:57,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:57,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1229781447, now seen corresponding path program 1 times [2021-10-28 09:05:57,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:57,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845079091] [2021-10-28 09:05:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:57,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 1161 proven. 104 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2021-10-28 09:05:57,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:57,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845079091] [2021-10-28 09:05:57,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845079091] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:05:57,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226497711] [2021-10-28 09:05:57,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:57,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:05:57,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:57,762 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:05:57,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 09:05:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:58,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:05:58,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 1375 trivial. 0 not checked. [2021-10-28 09:06:00,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226497711] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:06:00,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:06:00,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 09:06:00,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928731372] [2021-10-28 09:06:00,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:06:00,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:06:00,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:06:00,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:06:00,362 INFO L87 Difference]: Start difference. First operand 4454 states and 4773 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:00,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:06:00,940 INFO L93 Difference]: Finished difference Result 8728 states and 9365 transitions. [2021-10-28 09:06:00,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:06:00,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 642 [2021-10-28 09:06:00,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:06:00,980 INFO L225 Difference]: With dead ends: 8728 [2021-10-28 09:06:00,989 INFO L226 Difference]: Without dead ends: 4454 [2021-10-28 09:06:00,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:06:01,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2021-10-28 09:06:01,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3920. [2021-10-28 09:06:01,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.07042612911457) internal successors, (4195), 3919 states have internal predecessors, (4195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4195 transitions. [2021-10-28 09:06:01,155 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4195 transitions. Word has length 642 [2021-10-28 09:06:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:06:01,157 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4195 transitions. [2021-10-28 09:06:01,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4195 transitions. [2021-10-28 09:06:01,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2021-10-28 09:06:01,175 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:06:01,176 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:06:01,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:01,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:06:01,390 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:06:01,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1919303484, now seen corresponding path program 1 times [2021-10-28 09:06:01,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:01,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713923917] [2021-10-28 09:06:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:01,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1692 backedges. 1233 proven. 104 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2021-10-28 09:06:01,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:06:01,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713923917] [2021-10-28 09:06:01,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713923917] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:06:01,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473545818] [2021-10-28 09:06:01,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:01,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:06:01,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:01,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:06:01,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 09:06:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:03,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:06:03,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:04,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1692 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2021-10-28 09:06:04,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473545818] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:06:04,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:06:04,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 09:06:04,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166739268] [2021-10-28 09:06:04,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:06:04,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:06:04,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:06:04,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:06:04,858 INFO L87 Difference]: Start difference. First operand 3920 states and 4195 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:05,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:06:05,410 INFO L93 Difference]: Finished difference Result 8548 states and 9152 transitions. [2021-10-28 09:06:05,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:06:05,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 701 [2021-10-28 09:06:05,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:06:05,412 INFO L225 Difference]: With dead ends: 8548 [2021-10-28 09:06:05,412 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:06:05,421 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:06:05,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:06:05,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:06:05,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:05,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:06:05,422 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 701 [2021-10-28 09:06:05,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:06:05,423 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:06:05,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:06:05,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:06:05,426 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:06:05,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:05,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 09:06:05,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:06:05,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:06:05,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:06:05,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:06:06,166 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-28 09:06:06,166 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-28 09:06:06,166 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-28 09:06:06,166 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-28 09:06:06,166 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-28 09:06:06,166 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-28 09:06:06,167 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-28 09:06:06,168 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-28 09:06:06,169 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-28 09:06:06,170 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-28 09:06:06,171 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-28 09:06:06,172 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-28 09:06:06,173 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-28 09:06:06,179 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-28 09:06:06,179 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-28 09:06:06,179 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-28 09:06:06,180 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:06:06,180 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,180 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,180 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,180 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-28 09:06:06,181 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-28 09:06:06,181 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-28 09:06:06,181 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-28 09:06:06,181 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-28 09:06:06,181 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-28 09:06:06,181 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-28 09:06:06,182 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-28 09:06:06,182 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-28 09:06:06,182 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,182 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,182 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,182 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-28 09:06:06,183 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-28 09:06:06,183 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-28 09:06:06,183 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-28 09:06:06,183 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-28 09:06:06,186 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-28 09:06:06,187 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-28 09:06:06,187 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-28 09:06:06,187 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,187 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,187 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,187 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-28 09:06:06,188 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-28 09:06:06,188 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-28 09:06:06,188 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:06:06,188 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-28 09:06:06,188 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2021-10-28 09:06:06,189 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-28 09:06:06,189 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-28 09:06:06,189 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-28 09:06:06,189 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-28 09:06:06,189 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,189 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,190 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,190 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-28 09:06:06,190 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-28 09:06:06,190 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-28 09:06:06,190 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-28 09:06:06,191 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-28 09:06:06,191 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-28 09:06:06,191 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-28 09:06:06,191 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-28 09:06:06,191 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,191 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,192 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,192 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-28 09:06:06,192 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-28 09:06:06,192 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-28 09:06:06,192 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-28 09:06:06,192 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-28 09:06:06,193 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-28 09:06:06,193 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-28 09:06:06,193 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-28 09:06:06,193 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,193 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,193 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,194 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-28 09:06:06,194 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-28 09:06:06,194 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-28 09:06:06,205 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-28 09:06:06,205 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-28 09:06:06,205 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-28 09:06:06,205 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-28 09:06:06,206 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-28 09:06:06,206 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,206 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,206 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,206 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-28 09:06:06,207 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-28 09:06:06,207 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-28 09:06:06,207 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-28 09:06:06,207 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-28 09:06:06,207 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-28 09:06:06,207 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-28 09:06:06,208 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-28 09:06:06,208 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,208 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,208 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,208 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-28 09:06:06,208 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-28 09:06:06,209 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-28 09:06:06,209 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-28 09:06:06,209 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-28 09:06:06,209 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-28 09:06:06,210 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-28 09:06:06,210 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-28 09:06:06,210 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,210 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,210 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-28 09:06:06,210 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-28 09:06:06,211 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-28 09:06:06,211 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-28 09:06:06,211 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-28 09:06:06,211 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-28 09:06:06,212 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-28 09:06:06,212 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-28 09:06:06,212 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,212 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,212 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-28 09:06:06,213 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:06:06,213 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-28 09:06:06,213 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-28 09:06:06,213 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-28 09:06:06,213 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-28 09:06:06,213 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-28 09:06:06,214 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,214 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,216 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse4 (<= 7 ~a15~0)) (.cse5 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1)) (.cse2 (< 0 (+ ~a12~0 43))) (.cse3 (<= ~a21~0 6)) (.cse6 (<= (+ 49 ~a12~0) 0)) (.cse1 (<= ~a15~0 5))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 8 ~a21~0)) (and .cse0 .cse3 .cse1) (and .cse4 .cse5 .cse6 (<= 10 ~a21~0)) (and .cse4 .cse0 (<= 7 ~a21~0) .cse5) (and .cse0 .cse2 (<= 8 ~a15~0)) (and .cse4 .cse0 .cse5 .cse6) (and .cse0 .cse3 .cse2) (and .cse3 .cse6 .cse1))) [2021-10-28 09:06:06,216 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-28 09:06:06,216 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-28 09:06:06,216 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-28 09:06:06,217 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-28 09:06:06,217 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-28 09:06:06,217 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-28 09:06:06,217 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-28 09:06:06,217 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-28 09:06:06,218 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,218 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,218 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-28 09:06:06,218 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-28 09:06:06,218 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-28 09:06:06,218 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-28 09:06:06,219 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-28 09:06:06,219 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-28 09:06:06,219 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-28 09:06:06,219 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-28 09:06:06,219 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,220 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,220 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:06:06,220 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-28 09:06:06,220 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-28 09:06:06,220 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-28 09:06:06,220 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-28 09:06:06,221 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-28 09:06:06,221 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-28 09:06:06,221 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,221 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,221 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-28 09:06:06,221 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,222 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-28 09:06:06,222 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse4 (<= 7 ~a15~0)) (.cse5 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1)) (.cse2 (< 0 (+ ~a12~0 43))) (.cse3 (<= ~a21~0 6)) (.cse6 (<= (+ 49 ~a12~0) 0)) (.cse1 (<= ~a15~0 5))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 8 ~a21~0)) (and .cse0 .cse3 .cse1) (and .cse4 .cse5 .cse6 (<= 10 ~a21~0)) (and .cse4 .cse0 (<= 7 ~a21~0) .cse5) (and .cse0 .cse2 (<= 8 ~a15~0)) (and .cse4 .cse0 .cse5 .cse6) (and .cse0 .cse3 .cse2) (and .cse3 .cse6 .cse1))) [2021-10-28 09:06:06,223 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-28 09:06:06,223 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-28 09:06:06,223 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-28 09:06:06,223 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-28 09:06:06,223 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-28 09:06:06,224 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-28 09:06:06,224 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-28 09:06:06,224 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-28 09:06:06,224 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-28 09:06:06,224 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,225 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,225 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 09:06:06,225 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-28 09:06:06,225 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-28 09:06:06,225 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-28 09:06:06,225 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-28 09:06:06,229 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:06:06,231 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:06:06,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:06:06 BoogieIcfgContainer [2021-10-28 09:06:06,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:06:06,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:06:06,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:06:06,274 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:06:06,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:05:33" (3/4) ... [2021-10-28 09:06:06,279 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:06:06,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 09:06:06,325 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:06:06,327 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:06:06,329 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:06:06,604 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:06:06,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:06:06,606 INFO L168 Benchmark]: Toolchain (without parser) took 36513.77 ms. Allocated memory was 81.8 MB in the beginning and 358.6 MB in the end (delta: 276.8 MB). Free memory was 42.4 MB in the beginning and 263.4 MB in the end (delta: -221.0 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:06,607 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 81.8 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 36.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:06:06,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 847.31 ms. Allocated memory was 81.8 MB in the beginning and 121.6 MB in the end (delta: 39.8 MB). Free memory was 42.2 MB in the beginning and 74.3 MB in the end (delta: -32.1 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:06,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.70 ms. Allocated memory is still 121.6 MB. Free memory was 74.3 MB in the beginning and 64.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:06,610 INFO L168 Benchmark]: Boogie Preprocessor took 126.13 ms. Allocated memory is still 121.6 MB. Free memory was 64.8 MB in the beginning and 59.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:06,610 INFO L168 Benchmark]: RCFGBuilder took 1881.20 ms. Allocated memory is still 121.6 MB. Free memory was 59.3 MB in the beginning and 85.3 MB in the end (delta: -26.0 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:06,611 INFO L168 Benchmark]: TraceAbstraction took 33188.94 ms. Allocated memory was 121.6 MB in the beginning and 358.6 MB in the end (delta: 237.0 MB). Free memory was 84.5 MB in the beginning and 282.3 MB in the end (delta: -197.8 MB). Peak memory consumption was 226.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:06,611 INFO L168 Benchmark]: Witness Printer took 330.46 ms. Allocated memory is still 358.6 MB. Free memory was 282.3 MB in the beginning and 263.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:06,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 81.8 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 36.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 847.31 ms. Allocated memory was 81.8 MB in the beginning and 121.6 MB in the end (delta: 39.8 MB). Free memory was 42.2 MB in the beginning and 74.3 MB in the end (delta: -32.1 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 128.70 ms. Allocated memory is still 121.6 MB. Free memory was 74.3 MB in the beginning and 64.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 126.13 ms. Allocated memory is still 121.6 MB. Free memory was 64.8 MB in the beginning and 59.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1881.20 ms. Allocated memory is still 121.6 MB. Free memory was 59.3 MB in the beginning and 85.3 MB in the end (delta: -26.0 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 33188.94 ms. Allocated memory was 121.6 MB in the beginning and 358.6 MB in the end (delta: 237.0 MB). Free memory was 84.5 MB in the beginning and 282.3 MB in the end (delta: -197.8 MB). Peak memory consumption was 226.2 MB. Max. memory is 16.1 GB. * Witness Printer took 330.46 ms. Allocated memory is still 358.6 MB. Free memory was 282.3 MB in the beginning and 263.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 143]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.0s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1672 SDtfs, 1994 SDslu, 75 SDs, 0 SdLazy, 7258 SolverSat, 903 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3006 GetRequests, 2967 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4454occurred in iteration=11, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 3204 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 65 NumberOfFragments, 219 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2570 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 508 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 8182 NumberOfCodeBlocks, 8182 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 8162 ConstructedInterpolants, 0 QuantifiedInterpolants, 33571 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3967 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 15613/16134 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: 30]: Loop Invariant Derived loop invariant: (((((((((a24 == 1 && a15 <= 5) && 0 < a12 + 43) || (a24 == 1 && 8 <= a21)) || ((a24 == 1 && a21 <= 6) && a15 <= 5)) || (((7 <= a15 && a15 <= 8) && 49 + a12 <= 0) && 10 <= a21)) || (((7 <= a15 && a24 == 1) && 7 <= a21) && a15 <= 8)) || ((a24 == 1 && 0 < a12 + 43) && 8 <= a15)) || (((7 <= a15 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0)) || ((a24 == 1 && a21 <= 6) && 0 < a12 + 43)) || ((a21 <= 6 && 49 + a12 <= 0) && a15 <= 5) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((a24 == 1 && a15 <= 5) && 0 < a12 + 43) || (a24 == 1 && 8 <= a21)) || ((a24 == 1 && a21 <= 6) && a15 <= 5)) || (((7 <= a15 && a15 <= 8) && 49 + a12 <= 0) && 10 <= a21)) || (((7 <= a15 && a24 == 1) && 7 <= a21) && a15 <= 8)) || ((a24 == 1 && 0 < a12 + 43) && 8 <= a15)) || (((7 <= a15 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0)) || ((a24 == 1 && a21 <= 6) && 0 < a12 + 43)) || ((a21 <= 6 && 49 + a12 <= 0) && a15 <= 5) RESULT: Ultimate proved your program to be correct! [2021-10-28 09:06:06,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66ed16a-2b77-4508-8f2a-13c187396cf9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...