./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label08.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_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/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_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/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_569f71b4-e83d-4251-a062-bac605045bdb/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 cfb40cb555a14fd95bceea51ff65e6513c4cf2d7cc92f4af25db414fd945afd5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:01:32,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:01:32,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:01:32,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:01:32,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:01:32,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:01:32,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:01:32,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:01:32,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:01:32,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:01:32,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:01:32,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:01:32,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:01:32,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:01:32,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:01:32,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:01:32,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:01:32,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:01:32,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:01:32,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:01:32,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:01:32,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:01:32,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:01:32,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:01:32,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:01:32,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:01:32,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:01:32,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:01:32,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:01:32,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:01:32,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:01:32,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:01:32,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:01:32,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:01:32,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:01:32,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:01:32,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:01:32,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:01:32,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:01:32,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:01:32,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:01:32,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:01:32,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:01:32,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:01:32,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:01:32,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:01:32,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:01:32,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:01:32,400 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:01:32,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:01:32,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:01:32,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:01:32,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:01:32,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:01:32,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:01:32,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:01:32,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:01:32,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:01:32,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:01:32,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:01:32,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:01:32,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:01:32,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:01:32,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:01:32,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:01:32,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:01:32,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:01:32,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:01:32,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:01:32,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:01:32,406 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:01:32,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:01:32,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:01:32,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:01:32,408 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_569f71b4-e83d-4251-a062-bac605045bdb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfb40cb555a14fd95bceea51ff65e6513c4cf2d7cc92f4af25db414fd945afd5 [2021-10-28 09:01:32,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:01:32,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:01:32,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:01:32,778 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:01:32,780 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:01:32,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/eca-rers2012/Problem03_label08.c [2021-10-28 09:01:32,913 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/data/629ff0d9d/08700aa334fc4855a85ef76a876ca3cf/FLAG289a497d5 [2021-10-28 09:01:33,761 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:01:33,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/sv-benchmarks/c/eca-rers2012/Problem03_label08.c [2021-10-28 09:01:33,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/data/629ff0d9d/08700aa334fc4855a85ef76a876ca3cf/FLAG289a497d5 [2021-10-28 09:01:33,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/data/629ff0d9d/08700aa334fc4855a85ef76a876ca3cf [2021-10-28 09:01:33,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:01:33,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:01:33,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:33,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:01:33,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:01:33,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:33" (1/1) ... [2021-10-28 09:01:33,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c63c078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:33, skipping insertion in model container [2021-10-28 09:01:33,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:33" (1/1) ... [2021-10-28 09:01:33,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:01:33,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:01:34,789 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_569f71b4-e83d-4251-a062-bac605045bdb/sv-benchmarks/c/eca-rers2012/Problem03_label08.c[55410,55423] [2021-10-28 09:01:34,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:34,858 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:01:35,245 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_569f71b4-e83d-4251-a062-bac605045bdb/sv-benchmarks/c/eca-rers2012/Problem03_label08.c[55410,55423] [2021-10-28 09:01:35,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:35,291 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:01:35,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35 WrapperNode [2021-10-28 09:01:35,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:35,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:01:35,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:01:35,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:01:35,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:01:35,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:01:35,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:01:35,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:01:35,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:01:35,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:01:35,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:01:35,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:01:35,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (1/1) ... [2021-10-28 09:01:35,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:01:35,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:01:35,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:01:35,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:01:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:01:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:01:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:01:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:01:38,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:01:38,301 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 09:01:38,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:38 BoogieIcfgContainer [2021-10-28 09:01:38,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:01:38,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:01:38,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:01:38,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:01:38,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:01:33" (1/3) ... [2021-10-28 09:01:38,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b1769a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:01:38, skipping insertion in model container [2021-10-28 09:01:38,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:35" (2/3) ... [2021-10-28 09:01:38,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b1769a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:01:38, skipping insertion in model container [2021-10-28 09:01:38,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:38" (3/3) ... [2021-10-28 09:01:38,318 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label08.c [2021-10-28 09:01:38,326 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:01:38,327 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:01:38,409 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:01:38,420 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 09:01:38,420 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:01:38,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 09:01:38,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-10-28 09:01:38,482 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:38,483 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:38,484 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:38,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:38,491 INFO L85 PathProgramCache]: Analyzing trace with hash -576261461, now seen corresponding path program 1 times [2021-10-28 09:01:38,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:38,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125198108] [2021-10-28 09:01:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:38,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:39,427 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 09:01:39,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:39,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125198108] [2021-10-28 09:01:39,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125198108] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:39,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:39,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:01:39,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499170326] [2021-10-28 09:01:39,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:39,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:39,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:39,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:01:39,479 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 09:01:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:41,082 INFO L93 Difference]: Finished difference Result 816 states and 1453 transitions. [2021-10-28 09:01:41,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:41,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 157 [2021-10-28 09:01:41,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:41,105 INFO L225 Difference]: With dead ends: 816 [2021-10-28 09:01:41,105 INFO L226 Difference]: Without dead ends: 450 [2021-10-28 09:01:41,111 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 09:01:41,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-10-28 09:01:41,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 448. [2021-10-28 09:01:41,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 447 states have (on average 1.621923937360179) internal successors, (725), 447 states have internal predecessors, (725), 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 09:01:41,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 725 transitions. [2021-10-28 09:01:41,190 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 725 transitions. Word has length 157 [2021-10-28 09:01:41,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:41,192 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 725 transitions. [2021-10-28 09:01:41,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 09:01:41,193 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 725 transitions. [2021-10-28 09:01:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-10-28 09:01:41,198 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:41,199 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:41,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:01:41,199 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:41,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:41,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1276126245, now seen corresponding path program 1 times [2021-10-28 09:01:41,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:41,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41341989] [2021-10-28 09:01:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:41,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:41,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:41,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41341989] [2021-10-28 09:01:41,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41341989] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:41,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:41,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:01:41,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600373363] [2021-10-28 09:01:41,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:41,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:41,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:41,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:01:41,320 INFO L87 Difference]: Start difference. First operand 448 states and 725 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 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 09:01:42,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:42,435 INFO L93 Difference]: Finished difference Result 1318 states and 2139 transitions. [2021-10-28 09:01:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:42,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 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 162 [2021-10-28 09:01:42,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:42,443 INFO L225 Difference]: With dead ends: 1318 [2021-10-28 09:01:42,443 INFO L226 Difference]: Without dead ends: 872 [2021-10-28 09:01:42,446 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 09:01:42,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2021-10-28 09:01:42,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 868. [2021-10-28 09:01:42,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.5271049596309112) internal successors, (1324), 867 states have internal predecessors, (1324), 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 09:01:42,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1324 transitions. [2021-10-28 09:01:42,500 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1324 transitions. Word has length 162 [2021-10-28 09:01:42,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:42,500 INFO L470 AbstractCegarLoop]: Abstraction has 868 states and 1324 transitions. [2021-10-28 09:01:42,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 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 09:01:42,501 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1324 transitions. [2021-10-28 09:01:42,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-10-28 09:01:42,508 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:42,508 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:42,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:01:42,509 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:42,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:42,510 INFO L85 PathProgramCache]: Analyzing trace with hash 933680492, now seen corresponding path program 1 times [2021-10-28 09:01:42,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:42,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410148813] [2021-10-28 09:01:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:42,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:42,643 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:42,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:42,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410148813] [2021-10-28 09:01:42,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410148813] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:42,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:42,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:01:42,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638861227] [2021-10-28 09:01:42,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:42,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:42,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:42,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:01:42,662 INFO L87 Difference]: Start difference. First operand 868 states and 1324 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 09:01:43,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:43,837 INFO L93 Difference]: Finished difference Result 2566 states and 3931 transitions. [2021-10-28 09:01:43,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:43,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2021-10-28 09:01:43,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:43,850 INFO L225 Difference]: With dead ends: 2566 [2021-10-28 09:01:43,850 INFO L226 Difference]: Without dead ends: 1700 [2021-10-28 09:01:43,852 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 09:01:43,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2021-10-28 09:01:43,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1684. [2021-10-28 09:01:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.4979203802733214) internal successors, (2521), 1683 states have internal predecessors, (2521), 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 09:01:43,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2521 transitions. [2021-10-28 09:01:43,905 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2521 transitions. Word has length 165 [2021-10-28 09:01:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:43,905 INFO L470 AbstractCegarLoop]: Abstraction has 1684 states and 2521 transitions. [2021-10-28 09:01:43,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 09:01:43,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2521 transitions. [2021-10-28 09:01:43,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-10-28 09:01:43,911 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:43,912 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:43,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:01:43,913 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:43,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:43,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1632193297, now seen corresponding path program 1 times [2021-10-28 09:01:43,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:43,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866068148] [2021-10-28 09:01:43,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:43,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:44,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:44,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866068148] [2021-10-28 09:01:44,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866068148] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:44,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:44,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:01:44,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793349738] [2021-10-28 09:01:44,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:44,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:44,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:44,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:01:44,007 INFO L87 Difference]: Start difference. First operand 1684 states and 2521 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 09:01:45,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:45,118 INFO L93 Difference]: Finished difference Result 4188 states and 6247 transitions. [2021-10-28 09:01:45,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:45,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 167 [2021-10-28 09:01:45,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:45,136 INFO L225 Difference]: With dead ends: 4188 [2021-10-28 09:01:45,136 INFO L226 Difference]: Without dead ends: 2506 [2021-10-28 09:01:45,139 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 09:01:45,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2021-10-28 09:01:45,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2505. [2021-10-28 09:01:45,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2504 states have (on average 1.4700479233226837) internal successors, (3681), 2504 states have internal predecessors, (3681), 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 09:01:45,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3681 transitions. [2021-10-28 09:01:45,218 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3681 transitions. Word has length 167 [2021-10-28 09:01:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:45,218 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3681 transitions. [2021-10-28 09:01:45,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 09:01:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3681 transitions. [2021-10-28 09:01:45,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-10-28 09:01:45,226 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:45,226 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:45,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:01:45,227 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:45,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:45,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1802100129, now seen corresponding path program 1 times [2021-10-28 09:01:45,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:45,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980900699] [2021-10-28 09:01:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:45,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:45,414 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:01:45,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:45,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980900699] [2021-10-28 09:01:45,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980900699] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:45,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:45,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:01:45,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323612698] [2021-10-28 09:01:45,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:45,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:45,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:45,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:01:45,419 INFO L87 Difference]: Start difference. First operand 2505 states and 3681 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 09:01:46,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:46,480 INFO L93 Difference]: Finished difference Result 5007 states and 7359 transitions. [2021-10-28 09:01:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:46,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 172 [2021-10-28 09:01:46,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:46,499 INFO L225 Difference]: With dead ends: 5007 [2021-10-28 09:01:46,500 INFO L226 Difference]: Without dead ends: 2504 [2021-10-28 09:01:46,504 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 09:01:46,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2021-10-28 09:01:46,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 2502. [2021-10-28 09:01:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2502 states, 2501 states have (on average 1.3662534986005597) internal successors, (3417), 2501 states have internal predecessors, (3417), 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 09:01:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2502 states to 2502 states and 3417 transitions. [2021-10-28 09:01:46,586 INFO L78 Accepts]: Start accepts. Automaton has 2502 states and 3417 transitions. Word has length 172 [2021-10-28 09:01:46,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:46,587 INFO L470 AbstractCegarLoop]: Abstraction has 2502 states and 3417 transitions. [2021-10-28 09:01:46,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 09:01:46,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2502 states and 3417 transitions. [2021-10-28 09:01:46,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-10-28 09:01:46,595 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:46,595 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:46,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:01:46,596 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:46,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:46,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1335158266, now seen corresponding path program 1 times [2021-10-28 09:01:46,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:46,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601335859] [2021-10-28 09:01:46,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:46,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:01:46,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:46,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601335859] [2021-10-28 09:01:46,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601335859] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:46,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:46,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:01:46,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343105174] [2021-10-28 09:01:46,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:46,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:46,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:46,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:01:46,695 INFO L87 Difference]: Start difference. First operand 2502 states and 3417 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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 09:01:47,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:47,856 INFO L93 Difference]: Finished difference Result 7439 states and 10165 transitions. [2021-10-28 09:01:47,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:47,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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 174 [2021-10-28 09:01:47,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:47,901 INFO L225 Difference]: With dead ends: 7439 [2021-10-28 09:01:47,902 INFO L226 Difference]: Without dead ends: 4939 [2021-10-28 09:01:47,907 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 09:01:47,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2021-10-28 09:01:48,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4126. [2021-10-28 09:01:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 4125 states have (on average 1.257939393939394) internal successors, (5189), 4125 states have internal predecessors, (5189), 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 09:01:48,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 5189 transitions. [2021-10-28 09:01:48,049 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 5189 transitions. Word has length 174 [2021-10-28 09:01:48,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:48,050 INFO L470 AbstractCegarLoop]: Abstraction has 4126 states and 5189 transitions. [2021-10-28 09:01:48,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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 09:01:48,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 5189 transitions. [2021-10-28 09:01:48,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-10-28 09:01:48,058 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:48,058 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:48,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:01:48,059 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:48,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:48,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1967830700, now seen corresponding path program 1 times [2021-10-28 09:01:48,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:48,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890115360] [2021-10-28 09:01:48,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:48,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:48,198 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-28 09:01:48,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:48,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890115360] [2021-10-28 09:01:48,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890115360] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:01:48,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933797008] [2021-10-28 09:01:48,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:48,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:01:48,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:01:48,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:01:48,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:01:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:48,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:01:48,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-28 09:01:49,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933797008] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:49,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:01:49,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 09:01:49,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334954569] [2021-10-28 09:01:49,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:49,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:49,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:49,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:49,287 INFO L87 Difference]: Start difference. First operand 4126 states and 5189 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 09:01:50,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:50,509 INFO L93 Difference]: Finished difference Result 12325 states and 15502 transitions. [2021-10-28 09:01:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:50,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 184 [2021-10-28 09:01:50,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:50,562 INFO L225 Difference]: With dead ends: 12325 [2021-10-28 09:01:50,562 INFO L226 Difference]: Without dead ends: 8201 [2021-10-28 09:01:50,570 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:50,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8201 states. [2021-10-28 09:01:50,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8201 to 8200. [2021-10-28 09:01:50,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8200 states, 8199 states have (on average 1.2261251372118551) internal successors, (10053), 8199 states have internal predecessors, (10053), 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 09:01:50,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8200 states to 8200 states and 10053 transitions. [2021-10-28 09:01:50,818 INFO L78 Accepts]: Start accepts. Automaton has 8200 states and 10053 transitions. Word has length 184 [2021-10-28 09:01:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:50,819 INFO L470 AbstractCegarLoop]: Abstraction has 8200 states and 10053 transitions. [2021-10-28 09:01:50,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 09:01:50,819 INFO L276 IsEmpty]: Start isEmpty. Operand 8200 states and 10053 transitions. [2021-10-28 09:01:50,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-10-28 09:01:50,833 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:50,833 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:50,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:51,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:01:51,057 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:51,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:51,057 INFO L85 PathProgramCache]: Analyzing trace with hash -794235702, now seen corresponding path program 1 times [2021-10-28 09:01:51,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:51,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422594775] [2021-10-28 09:01:51,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:51,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:51,198 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:01:51,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:51,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422594775] [2021-10-28 09:01:51,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422594775] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:51,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:51,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:01:51,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965445091] [2021-10-28 09:01:51,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:51,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:51,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:51,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:01:51,202 INFO L87 Difference]: Start difference. First operand 8200 states and 10053 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:01:52,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:52,444 INFO L93 Difference]: Finished difference Result 20881 states and 25555 transitions. [2021-10-28 09:01:52,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:52,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2021-10-28 09:01:52,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:52,519 INFO L225 Difference]: With dead ends: 20881 [2021-10-28 09:01:52,520 INFO L226 Difference]: Without dead ends: 12683 [2021-10-28 09:01:52,532 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 09:01:52,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12683 states. [2021-10-28 09:01:52,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12683 to 11448. [2021-10-28 09:01:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11448 states, 11447 states have (on average 1.1996156198130514) internal successors, (13732), 11447 states have internal predecessors, (13732), 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 09:01:52,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11448 states to 11448 states and 13732 transitions. [2021-10-28 09:01:52,917 INFO L78 Accepts]: Start accepts. Automaton has 11448 states and 13732 transitions. Word has length 206 [2021-10-28 09:01:52,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:52,917 INFO L470 AbstractCegarLoop]: Abstraction has 11448 states and 13732 transitions. [2021-10-28 09:01:52,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:01:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 11448 states and 13732 transitions. [2021-10-28 09:01:52,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-10-28 09:01:52,941 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:52,941 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:52,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:01:52,942 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:52,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:52,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1532481883, now seen corresponding path program 1 times [2021-10-28 09:01:52,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:52,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77558226] [2021-10-28 09:01:52,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:52,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:53,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:53,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77558226] [2021-10-28 09:01:53,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77558226] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:53,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:53,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:01:53,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164193795] [2021-10-28 09:01:53,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:01:53,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:53,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:01:53,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:01:53,106 INFO L87 Difference]: Start difference. First operand 11448 states and 13732 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 09:01:54,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:54,878 INFO L93 Difference]: Finished difference Result 23728 states and 28488 transitions. [2021-10-28 09:01:54,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:01:54,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 222 [2021-10-28 09:01:54,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:54,913 INFO L225 Difference]: With dead ends: 23728 [2021-10-28 09:01:54,913 INFO L226 Difference]: Without dead ends: 12282 [2021-10-28 09:01:54,928 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 09:01:54,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12282 states. [2021-10-28 09:01:55,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12282 to 11245. [2021-10-28 09:01:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11245 states, 11244 states have (on average 1.1959267164710068) internal successors, (13447), 11244 states have internal predecessors, (13447), 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 09:01:55,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11245 states to 11245 states and 13447 transitions. [2021-10-28 09:01:55,183 INFO L78 Accepts]: Start accepts. Automaton has 11245 states and 13447 transitions. Word has length 222 [2021-10-28 09:01:55,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:55,184 INFO L470 AbstractCegarLoop]: Abstraction has 11245 states and 13447 transitions. [2021-10-28 09:01:55,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 09:01:55,184 INFO L276 IsEmpty]: Start isEmpty. Operand 11245 states and 13447 transitions. [2021-10-28 09:01:55,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-10-28 09:01:55,203 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:55,204 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:55,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:01:55,204 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:55,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:55,205 INFO L85 PathProgramCache]: Analyzing trace with hash 68415504, now seen corresponding path program 1 times [2021-10-28 09:01:55,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:55,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310056527] [2021-10-28 09:01:55,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:55,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-28 09:01:55,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:55,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310056527] [2021-10-28 09:01:55,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310056527] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:01:55,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118449096] [2021-10-28 09:01:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:55,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:01:55,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:01:55,369 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:01:55,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:01:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:55,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:01:55,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:56,237 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:01:56,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118449096] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:56,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:01:56,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 09:01:56,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78955251] [2021-10-28 09:01:56,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:56,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:56,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:56,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:56,241 INFO L87 Difference]: Start difference. First operand 11245 states and 13447 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:01:57,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:57,512 INFO L93 Difference]: Finished difference Result 30018 states and 35867 transitions. [2021-10-28 09:01:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:57,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 229 [2021-10-28 09:01:57,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:57,556 INFO L225 Difference]: With dead ends: 30018 [2021-10-28 09:01:57,556 INFO L226 Difference]: Without dead ends: 18775 [2021-10-28 09:01:57,573 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:57,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18775 states. [2021-10-28 09:01:57,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18775 to 17345. [2021-10-28 09:01:58,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17345 states, 17344 states have (on average 1.1772947416974169) internal successors, (20419), 17344 states have internal predecessors, (20419), 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 09:01:58,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17345 states to 17345 states and 20419 transitions. [2021-10-28 09:01:58,057 INFO L78 Accepts]: Start accepts. Automaton has 17345 states and 20419 transitions. Word has length 229 [2021-10-28 09:01:58,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:58,058 INFO L470 AbstractCegarLoop]: Abstraction has 17345 states and 20419 transitions. [2021-10-28 09:01:58,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:01:58,059 INFO L276 IsEmpty]: Start isEmpty. Operand 17345 states and 20419 transitions. [2021-10-28 09:01:58,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-10-28 09:01:58,091 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:58,092 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:58,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:58,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 09:01:58,309 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:01:58,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1712858039, now seen corresponding path program 1 times [2021-10-28 09:01:58,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:58,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723206083] [2021-10-28 09:01:58,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:58,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-28 09:01:58,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:58,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723206083] [2021-10-28 09:01:58,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723206083] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:01:58,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530417454] [2021-10-28 09:01:58,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:58,473 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:01:58,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:01:58,474 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:01:58,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:01:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:58,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:01:58,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:59,668 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-28 09:01:59,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530417454] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:59,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:01:59,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 09:01:59,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183736044] [2021-10-28 09:01:59,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:59,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:59,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:59,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:59,676 INFO L87 Difference]: Start difference. First operand 17345 states and 20419 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 09:02:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:00,809 INFO L93 Difference]: Finished difference Result 35306 states and 41479 transitions. [2021-10-28 09:02:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:02:00,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 249 [2021-10-28 09:02:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:02:00,849 INFO L225 Difference]: With dead ends: 35306 [2021-10-28 09:02:00,849 INFO L226 Difference]: Without dead ends: 17963 [2021-10-28 09:02:00,870 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:02:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17963 states. [2021-10-28 09:02:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17963 to 17345. [2021-10-28 09:02:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17345 states, 17344 states have (on average 1.149331180811808) internal successors, (19934), 17344 states have internal predecessors, (19934), 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 09:02:01,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17345 states to 17345 states and 19934 transitions. [2021-10-28 09:02:01,262 INFO L78 Accepts]: Start accepts. Automaton has 17345 states and 19934 transitions. Word has length 249 [2021-10-28 09:02:01,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:02:01,263 INFO L470 AbstractCegarLoop]: Abstraction has 17345 states and 19934 transitions. [2021-10-28 09:02:01,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 09:02:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 17345 states and 19934 transitions. [2021-10-28 09:02:01,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-10-28 09:02:01,292 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:02:01,293 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:01,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:01,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 09:02:01,513 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:02:01,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:01,514 INFO L85 PathProgramCache]: Analyzing trace with hash -455035159, now seen corresponding path program 1 times [2021-10-28 09:02:01,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:01,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303265102] [2021-10-28 09:02:01,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:01,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:01,722 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 99 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-28 09:02:01,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:01,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303265102] [2021-10-28 09:02:01,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303265102] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:02:01,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939197246] [2021-10-28 09:02:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:01,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:02:01,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:01,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:02:01,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 09:02:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:02,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:02:02,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:02:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-28 09:02:03,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939197246] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:03,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:02:03,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 09:02:03,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586214961] [2021-10-28 09:02:03,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:02:03,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:03,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:02:03,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:02:03,017 INFO L87 Difference]: Start difference. First operand 17345 states and 19934 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 09:02:04,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:04,182 INFO L93 Difference]: Finished difference Result 34703 states and 39895 transitions. [2021-10-28 09:02:04,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:02:04,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 257 [2021-10-28 09:02:04,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:02:04,216 INFO L225 Difference]: With dead ends: 34703 [2021-10-28 09:02:04,216 INFO L226 Difference]: Without dead ends: 17360 [2021-10-28 09:02:04,232 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:02:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17360 states. [2021-10-28 09:02:04,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17360 to 17345. [2021-10-28 09:02:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17345 states, 17344 states have (on average 1.1448916051660516) internal successors, (19857), 17344 states have internal predecessors, (19857), 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 09:02:04,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17345 states to 17345 states and 19857 transitions. [2021-10-28 09:02:04,758 INFO L78 Accepts]: Start accepts. Automaton has 17345 states and 19857 transitions. Word has length 257 [2021-10-28 09:02:04,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:02:04,759 INFO L470 AbstractCegarLoop]: Abstraction has 17345 states and 19857 transitions. [2021-10-28 09:02:04,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 09:02:04,759 INFO L276 IsEmpty]: Start isEmpty. Operand 17345 states and 19857 transitions. [2021-10-28 09:02:04,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-10-28 09:02:04,847 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:02:04,847 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-28 09:02:04,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:05,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:02:05,061 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:02:05,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:05,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1219473828, now seen corresponding path program 1 times [2021-10-28 09:02:05,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:05,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119764843] [2021-10-28 09:02:05,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:05,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-10-28 09:02:05,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:05,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119764843] [2021-10-28 09:02:05,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119764843] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:05,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:05,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:02:05,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221340519] [2021-10-28 09:02:05,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:02:05,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:05,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:02:05,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:02:05,478 INFO L87 Difference]: Start difference. First operand 17345 states and 19857 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 09:02:06,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:06,597 INFO L93 Difference]: Finished difference Result 33245 states and 38014 transitions. [2021-10-28 09:02:06,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:02:06,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 420 [2021-10-28 09:02:06,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:02:06,625 INFO L225 Difference]: With dead ends: 33245 [2021-10-28 09:02:06,625 INFO L226 Difference]: Without dead ends: 15902 [2021-10-28 09:02:06,635 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 09:02:06,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15902 states. [2021-10-28 09:02:06,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15902 to 15292. [2021-10-28 09:02:06,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15292 states, 15291 states have (on average 1.1143156104898306) internal successors, (17039), 15291 states have internal predecessors, (17039), 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 09:02:06,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15292 states to 15292 states and 17039 transitions. [2021-10-28 09:02:06,985 INFO L78 Accepts]: Start accepts. Automaton has 15292 states and 17039 transitions. Word has length 420 [2021-10-28 09:02:06,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:02:06,986 INFO L470 AbstractCegarLoop]: Abstraction has 15292 states and 17039 transitions. [2021-10-28 09:02:06,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 09:02:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand 15292 states and 17039 transitions. [2021-10-28 09:02:07,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-10-28 09:02:07,045 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:02:07,045 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-10-28 09:02:07,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 09:02:07,046 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:02:07,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:07,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1322868857, now seen corresponding path program 1 times [2021-10-28 09:02:07,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:07,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217514267] [2021-10-28 09:02:07,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:07,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-10-28 09:02:07,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:07,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217514267] [2021-10-28 09:02:07,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217514267] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:07,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:07,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:02:07,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436085348] [2021-10-28 09:02:07,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:02:07,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:07,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:02:07,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:02:07,363 INFO L87 Difference]: Start difference. First operand 15292 states and 17039 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 2 states have internal predecessors, (303), 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 09:02:08,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:08,044 INFO L93 Difference]: Finished difference Result 29745 states and 33126 transitions. [2021-10-28 09:02:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:02:08,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 2 states have internal predecessors, (303), 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 476 [2021-10-28 09:02:08,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:02:08,045 INFO L225 Difference]: With dead ends: 29745 [2021-10-28 09:02:08,045 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:02:08,054 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 09:02:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:02:08,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:02:08,055 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 09:02:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:02:08,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 476 [2021-10-28 09:02:08,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:02:08,056 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:02:08,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 2 states have internal predecessors, (303), 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 09:02:08,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:02:08,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:02:08,062 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:02:08,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 09:02:08,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:02:08,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:02:08,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:02:08,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:02:09,117 INFO L857 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-10-28 09:02:09,117 INFO L857 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-10-28 09:02:09,117 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,117 INFO L857 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-10-28 09:02:09,117 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,118 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,118 INFO L857 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,118 INFO L857 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,118 INFO L857 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,118 INFO L857 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,118 INFO L857 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,118 INFO L857 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,118 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,119 INFO L857 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-10-28 09:02:09,120 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,121 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,121 INFO L857 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,121 INFO L857 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,121 INFO L857 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,121 INFO L857 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,121 INFO L857 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-10-28 09:02:09,121 INFO L857 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-10-28 09:02:09,121 INFO L857 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,121 INFO L857 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-10-28 09:02:09,122 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,122 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-10-28 09:02:09,122 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-10-28 09:02:09,124 INFO L857 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,124 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,124 INFO L857 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,124 INFO L857 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,125 INFO L857 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,125 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,125 INFO L857 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,125 INFO L857 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-10-28 09:02:09,126 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,126 INFO L857 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-10-28 09:02:09,126 INFO L857 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-10-28 09:02:09,126 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,127 INFO L857 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,128 INFO L857 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,128 INFO L857 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,129 INFO L857 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-10-28 09:02:09,129 INFO L857 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-10-28 09:02:09,129 INFO L857 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,129 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,129 INFO L857 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,129 INFO L857 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,130 INFO L857 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,130 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,130 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,130 INFO L857 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,130 INFO L857 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,131 INFO L857 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,131 INFO L857 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-10-28 09:02:09,131 INFO L857 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-10-28 09:02:09,131 INFO L857 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-10-28 09:02:09,131 INFO L857 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,131 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,132 INFO L857 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,132 INFO L857 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,132 INFO L857 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,132 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,132 INFO L857 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-10-28 09:02:09,132 INFO L857 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-10-28 09:02:09,133 INFO L857 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-10-28 09:02:09,133 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,133 INFO L857 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,133 INFO L857 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,133 INFO L857 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,134 INFO L857 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,134 INFO L857 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,134 INFO L857 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-10-28 09:02:09,134 INFO L857 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-10-28 09:02:09,134 INFO L857 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-10-28 09:02:09,134 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,135 INFO L857 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,135 INFO L857 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,135 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-10-28 09:02:09,135 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,135 INFO L857 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-10-28 09:02:09,136 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:02:09,136 INFO L857 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,136 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,136 INFO L857 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-10-28 09:02:09,136 INFO L857 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-10-28 09:02:09,136 INFO L857 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,137 INFO L857 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,137 INFO L857 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,138 INFO L857 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,138 INFO L857 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,138 INFO L857 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,138 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,138 INFO L857 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-10-28 09:02:09,139 INFO L857 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-10-28 09:02:09,142 INFO L857 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-10-28 09:02:09,142 INFO L857 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-10-28 09:02:09,142 INFO L857 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-10-28 09:02:09,142 INFO L857 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,142 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,143 INFO L857 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,143 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,143 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,143 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,143 INFO L857 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,144 INFO L857 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,144 INFO L857 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,145 INFO L857 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,145 INFO L857 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-10-28 09:02:09,145 INFO L857 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-10-28 09:02:09,145 INFO L857 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-10-28 09:02:09,145 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,146 INFO L857 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,146 INFO L857 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,146 INFO L857 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,146 INFO L857 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,146 INFO L857 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,146 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,147 INFO L857 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,147 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,147 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:02:09,147 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1516) no Hoare annotation was computed. [2021-10-28 09:02:09,147 INFO L857 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-10-28 09:02:09,148 INFO L857 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-10-28 09:02:09,148 INFO L857 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-10-28 09:02:09,148 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-10-28 09:02:09,148 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-10-28 09:02:09,148 INFO L857 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,149 INFO L857 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,149 INFO L857 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,149 INFO L857 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,149 INFO L857 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,149 INFO L857 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,149 INFO L857 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,150 INFO L857 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,150 INFO L857 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-10-28 09:02:09,150 INFO L857 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-10-28 09:02:09,150 INFO L857 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-10-28 09:02:09,150 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,151 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,151 INFO L857 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,151 INFO L857 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-10-28 09:02:09,151 INFO L857 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-10-28 09:02:09,151 INFO L857 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,151 INFO L857 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,152 INFO L857 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,152 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-10-28 09:02:09,152 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,152 INFO L857 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-10-28 09:02:09,152 INFO L857 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,152 INFO L857 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-10-28 09:02:09,153 INFO L857 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,153 INFO L857 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,153 INFO L857 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-10-28 09:02:09,153 INFO L857 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-10-28 09:02:09,153 INFO L857 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-10-28 09:02:09,153 INFO L857 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-10-28 09:02:09,154 INFO L857 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-10-28 09:02:09,154 INFO L857 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-10-28 09:02:09,154 INFO L857 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-10-28 09:02:09,154 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,154 INFO L857 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,155 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,155 INFO L853 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse1 (= ~a12~0 1)) (.cse8 (= ~a26~0 1)) (.cse9 (<= ~a3~0 1)) (.cse3 (= ~a6~0 1)) (.cse5 (<= ~a11~0 0)) (.cse6 (<= ~a27~0 0)) (.cse0 (= ~a5~0 1)) (.cse2 (= ~a11~0 1)) (.cse10 (<= ~a12~0 0)) (.cse4 (= ~a27~0 1)) (.cse7 (<= ~a6~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse10 .cse4 .cse7) (and .cse0 .cse1 .cse5 .cse4 .cse7) (and .cse0 .cse3 .cse5 .cse10 .cse4) (and .cse0 (<= 1 ~a3~0) .cse5 .cse10 .cse6 .cse7) (and .cse0 .cse1 .cse3 .cse5 .cse4) (and .cse8 .cse0 .cse1 .cse2 .cse4 .cse7) (and .cse0 .cse1 .cse3 .cse5 .cse6) (and .cse0 .cse3 .cse5 .cse10 .cse6) (and .cse0 .cse2 .cse3 .cse10 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse6) (and .cse0 .cse2 .cse3 .cse10 .cse4) (and .cse8 .cse0 .cse9 .cse3 .cse5 .cse4) (and .cse0 .cse2 .cse10 .cse6 .cse7) (and .cse0 .cse2 .cse10 .cse4 .cse7))) [2021-10-28 09:02:09,155 INFO L857 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,156 INFO L857 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,156 INFO L857 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,156 INFO L857 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-10-28 09:02:09,156 INFO L857 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-10-28 09:02:09,156 INFO L857 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,156 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,157 INFO L857 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,157 INFO L860 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-10-28 09:02:09,157 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,157 INFO L857 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,157 INFO L857 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,158 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,158 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,158 INFO L857 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,158 INFO L857 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-10-28 09:02:09,158 INFO L857 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-10-28 09:02:09,159 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,159 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,159 INFO L857 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,159 INFO L857 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,159 INFO L857 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,159 INFO L857 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,160 INFO L857 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,160 INFO L857 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,160 INFO L857 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,160 INFO L857 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-10-28 09:02:09,160 INFO L857 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-10-28 09:02:09,161 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,163 INFO L857 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,163 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-10-28 09:02:09,163 INFO L857 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-10-28 09:02:09,164 INFO L857 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,164 INFO L853 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse1 (= ~a12~0 1)) (.cse8 (= ~a26~0 1)) (.cse9 (<= ~a3~0 1)) (.cse3 (= ~a6~0 1)) (.cse5 (<= ~a11~0 0)) (.cse6 (<= ~a27~0 0)) (.cse0 (= ~a5~0 1)) (.cse2 (= ~a11~0 1)) (.cse10 (<= ~a12~0 0)) (.cse4 (= ~a27~0 1)) (.cse7 (<= ~a6~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse10 .cse4 .cse7) (and .cse0 .cse1 .cse5 .cse4 .cse7) (and .cse0 .cse3 .cse5 .cse10 .cse4) (and .cse0 (<= 1 ~a3~0) .cse5 .cse10 .cse6 .cse7) (and .cse0 .cse1 .cse3 .cse5 .cse4) (and .cse8 .cse0 .cse1 .cse2 .cse4 .cse7) (and .cse0 .cse1 .cse3 .cse5 .cse6) (and .cse0 .cse3 .cse5 .cse10 .cse6) (and .cse0 .cse2 .cse3 .cse10 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse6) (and .cse0 .cse2 .cse3 .cse10 .cse4) (and .cse8 .cse0 .cse9 .cse3 .cse5 .cse4) (and .cse0 .cse2 .cse10 .cse6 .cse7) (and .cse0 .cse2 .cse10 .cse4 .cse7))) [2021-10-28 09:02:09,164 INFO L857 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,164 INFO L857 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,165 INFO L857 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,165 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,165 INFO L857 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-10-28 09:02:09,165 INFO L857 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-10-28 09:02:09,165 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,166 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,166 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,166 INFO L857 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,166 INFO L857 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,166 INFO L857 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,166 INFO L857 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,167 INFO L857 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,167 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:02:09,167 INFO L857 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-10-28 09:02:09,167 INFO L857 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-10-28 09:02:09,167 INFO L857 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-10-28 09:02:09,168 INFO L857 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,168 INFO L857 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-10-28 09:02:09,168 INFO L857 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,168 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,168 INFO L857 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-10-28 09:02:09,168 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,169 INFO L857 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,169 INFO L857 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,169 INFO L857 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,169 INFO L857 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,170 INFO L857 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-10-28 09:02:09,170 INFO L857 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,171 INFO L857 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-10-28 09:02:09,171 INFO L857 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-10-28 09:02:09,171 INFO L857 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-10-28 09:02:09,172 INFO L857 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,172 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,172 INFO L857 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,173 INFO L857 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,173 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,173 INFO L857 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,175 INFO L857 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,175 INFO L857 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,175 INFO L857 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-10-28 09:02:09,175 INFO L857 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-10-28 09:02:09,176 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,176 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,176 INFO L857 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-10-28 09:02:09,176 INFO L857 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-10-28 09:02:09,176 INFO L857 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-10-28 09:02:09,176 INFO L857 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,177 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,177 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,177 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,177 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,177 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:02:09,178 INFO L857 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,178 INFO L857 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,178 INFO L857 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,178 INFO L857 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,178 INFO L857 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,178 INFO L857 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,179 INFO L857 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-10-28 09:02:09,179 INFO L857 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-10-28 09:02:09,179 INFO L857 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-10-28 09:02:09,179 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,179 INFO L857 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,179 INFO L857 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,180 INFO L857 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,180 INFO L857 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,180 INFO L857 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,180 INFO L857 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,180 INFO L857 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-10-28 09:02:09,181 INFO L857 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-10-28 09:02:09,181 INFO L857 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,181 INFO L857 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-10-28 09:02:09,181 INFO L857 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-10-28 09:02:09,181 INFO L857 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-10-28 09:02:09,181 INFO L857 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,182 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,182 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,182 INFO L857 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,182 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-10-28 09:02:09,182 INFO L857 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-10-28 09:02:09,182 INFO L857 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-10-28 09:02:09,183 INFO L857 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,183 INFO L857 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,183 INFO L857 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 09:02:09,187 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:02:09,189 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:02:09,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:02:09 BoogieIcfgContainer [2021-10-28 09:02:09,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:02:09,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:02:09,243 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:02:09,243 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:02:09,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:38" (3/4) ... [2021-10-28 09:02:09,247 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:02:09,287 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 09:02:09,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:02:09,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:02:09,299 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:02:09,537 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:02:09,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:02:09,539 INFO L168 Benchmark]: Toolchain (without parser) took 35689.81 ms. Allocated memory was 86.0 MB in the beginning and 755.0 MB in the end (delta: 669.0 MB). Free memory was 41.9 MB in the beginning and 305.5 MB in the end (delta: -263.6 MB). Peak memory consumption was 405.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:09,540 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 64.7 MB in the beginning and 64.6 MB in the end (delta: 64.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:09,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1439.19 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 41.7 MB in the beginning and 64.3 MB in the end (delta: -22.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:09,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 164.73 ms. Allocated memory is still 104.9 MB. Free memory was 64.3 MB in the beginning and 49.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:09,541 INFO L168 Benchmark]: Boogie Preprocessor took 148.05 ms. Allocated memory is still 104.9 MB. Free memory was 49.7 MB in the beginning and 39.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:09,542 INFO L168 Benchmark]: RCFGBuilder took 2697.28 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 39.7 MB in the beginning and 96.1 MB in the end (delta: -56.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:09,542 INFO L168 Benchmark]: TraceAbstraction took 30933.61 ms. Allocated memory was 151.0 MB in the beginning and 755.0 MB in the end (delta: 604.0 MB). Free memory was 95.2 MB in the beginning and 342.1 MB in the end (delta: -246.9 MB). Peak memory consumption was 357.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:09,543 INFO L168 Benchmark]: Witness Printer took 295.23 ms. Allocated memory is still 755.0 MB. Free memory was 342.1 MB in the beginning and 305.5 MB in the end (delta: 36.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:09,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 64.7 MB in the beginning and 64.6 MB in the end (delta: 64.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1439.19 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 41.7 MB in the beginning and 64.3 MB in the end (delta: -22.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 164.73 ms. Allocated memory is still 104.9 MB. Free memory was 64.3 MB in the beginning and 49.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 148.05 ms. Allocated memory is still 104.9 MB. Free memory was 49.7 MB in the beginning and 39.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2697.28 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 39.7 MB in the beginning and 96.1 MB in the end (delta: -56.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30933.61 ms. Allocated memory was 151.0 MB in the beginning and 755.0 MB in the end (delta: 604.0 MB). Free memory was 95.2 MB in the beginning and 342.1 MB in the end (delta: -246.9 MB). Peak memory consumption was 357.9 MB. Max. memory is 16.1 GB. * Witness Printer took 295.23 ms. Allocated memory is still 755.0 MB. Free memory was 342.1 MB in the beginning and 305.5 MB in the end (delta: 36.7 MB). Peak memory consumption was 35.7 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: 1516]: 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, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.7s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 17.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2799 SDtfs, 2726 SDslu, 326 SDs, 0 SdLazy, 8598 SolverSat, 1836 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 951 GetRequests, 928 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17345occurred in iteration=10, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 5784 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 131 NumberOfFragments, 603 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3060 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 510 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 4159 NumberOfCodeBlocks, 4159 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4141 ConstructedInterpolants, 0 QuantifiedInterpolants, 8333 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1952 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 2165/2201 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a5 == 1 && a12 == 1) && a11 == 1) && a6 == 1) && a27 == 1) || ((((a5 == 1 && a12 == 1) && a11 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a27 <= 0) && a6 <= 0)) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a6 == 1) && a27 == 1)) || ((((a5 == 1 && a11 <= 0) && a12 <= 0) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 <= 0) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a6 == 1) && a11 <= 0) && a12 <= 0) && a27 == 1)) || (((((a5 == 1 && 1 <= a3) && a11 <= 0) && a12 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a6 == 1) && a11 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 1) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a6 == 1) && a11 <= 0) && a27 <= 0)) || ((((a5 == 1 && a6 == 1) && a11 <= 0) && a12 <= 0) && a27 <= 0)) || ((((a5 == 1 && a11 == 1) && a6 == 1) && a12 <= 0) && a27 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a6 == 1) && a27 <= 0)) || ((((a5 == 1 && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && a6 == 1) && a11 <= 0) && a27 == 1)) || ((((a5 == 1 && a11 == 1) && a12 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a11 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a5 == 1 && a12 == 1) && a11 == 1) && a6 == 1) && a27 == 1) || ((((a5 == 1 && a12 == 1) && a11 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a27 <= 0) && a6 <= 0)) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a6 == 1) && a27 == 1)) || ((((a5 == 1 && a11 <= 0) && a12 <= 0) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 <= 0) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a6 == 1) && a11 <= 0) && a12 <= 0) && a27 == 1)) || (((((a5 == 1 && 1 <= a3) && a11 <= 0) && a12 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a6 == 1) && a11 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 1) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a6 == 1) && a11 <= 0) && a27 <= 0)) || ((((a5 == 1 && a6 == 1) && a11 <= 0) && a12 <= 0) && a27 <= 0)) || ((((a5 == 1 && a11 == 1) && a6 == 1) && a12 <= 0) && a27 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a6 == 1) && a27 <= 0)) || ((((a5 == 1 && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && a6 == 1) && a11 <= 0) && a27 == 1)) || ((((a5 == 1 && a11 == 1) && a12 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a11 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0) RESULT: Ultimate proved your program to be correct! [2021-10-28 09:02:09,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569f71b4-e83d-4251-a062-bac605045bdb/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...