./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro --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 5ab060d6e8ec67586454a3fd3cad3b6749e261734a1b9e4129e037a184a704d9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:56:45,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:56:45,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:56:45,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:56:45,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:56:45,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:56:45,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:56:45,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:56:45,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:56:45,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:56:45,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:56:45,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:56:45,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:56:45,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:56:45,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:56:45,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:56:45,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:56:45,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:56:45,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:56:45,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:56:45,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:56:45,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:56:45,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:56:45,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:56:45,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:56:45,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:56:45,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:56:45,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:56:45,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:56:45,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:56:45,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:56:45,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:56:45,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:56:45,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:56:45,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:56:45,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:56:45,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:56:45,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:56:45,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:56:45,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:56:45,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:56:45,353 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:56:45,410 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:56:45,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:56:45,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:56:45,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:56:45,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:56:45,413 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:56:45,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:56:45,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:56:45,415 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:56:45,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:56:45,417 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:56:45,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:56:45,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:56:45,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:56:45,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:56:45,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:56:45,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:56:45,419 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:56:45,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:56:45,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:56:45,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:56:45,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:56:45,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:56:45,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:56:45,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:56:45,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:56:45,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:56:45,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:56:45,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:56:45,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:56:45,424 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:56:45,425 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:56:45,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:56:45,426 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_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ab060d6e8ec67586454a3fd3cad3b6749e261734a1b9e4129e037a184a704d9 [2022-11-18 19:56:45,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:56:45,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:56:45,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:56:45,908 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:56:45,909 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:56:45,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c [2022-11-18 19:56:46,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/data/81d27947e/a0536f4435044eb7b07cd390987f4740/FLAG2f19acc2b [2022-11-18 19:56:47,272 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:56:47,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c [2022-11-18 19:56:47,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/data/81d27947e/a0536f4435044eb7b07cd390987f4740/FLAG2f19acc2b [2022-11-18 19:56:47,385 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/data/81d27947e/a0536f4435044eb7b07cd390987f4740 [2022-11-18 19:56:47,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:56:47,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:56:47,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:56:47,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:56:47,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:56:47,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:47" (1/1) ... [2022-11-18 19:56:47,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269a32b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:47, skipping insertion in model container [2022-11-18 19:56:47,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:47" (1/1) ... [2022-11-18 19:56:47,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:56:47,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:56:50,478 WARN L234 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_97562660-6d66-463a-ae38-9d7b5b769e07/sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c[381679,381692] [2022-11-18 19:56:50,517 WARN L234 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_97562660-6d66-463a-ae38-9d7b5b769e07/sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c[383339,383352] [2022-11-18 19:56:50,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:56:50,906 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:56:52,311 WARN L234 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_97562660-6d66-463a-ae38-9d7b5b769e07/sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c[381679,381692] [2022-11-18 19:56:52,320 WARN L234 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_97562660-6d66-463a-ae38-9d7b5b769e07/sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c[383339,383352] [2022-11-18 19:56:52,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:56:52,426 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:56:52,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52 WrapperNode [2022-11-18 19:56:52,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:56:52,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:56:52,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:56:52,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:56:52,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:52,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:52,971 INFO L138 Inliner]: procedures = 62, calls = 69, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 13030 [2022-11-18 19:56:52,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:56:52,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:56:52,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:56:52,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:56:52,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:52,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:53,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:53,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:53,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:53,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:53,399 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:53,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:53,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:56:53,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:56:53,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:56:53,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:56:53,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (1/1) ... [2022-11-18 19:56:53,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:56:53,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:56:53,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:56:53,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97562660-6d66-463a-ae38-9d7b5b769e07/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:56:53,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:56:53,595 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-18 19:56:53,595 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-18 19:56:53,595 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-18 19:56:53,595 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-18 19:56:53,596 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-18 19:56:53,596 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-18 19:56:53,596 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-18 19:56:53,596 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-18 19:56:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-18 19:56:53,597 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-18 19:56:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-18 19:56:53,597 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-18 19:56:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-18 19:56:53,598 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-18 19:56:53,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:56:53,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:56:53,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:56:53,760 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:56:53,762 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:57:04,511 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:57:04,548 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:57:04,548 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-11-18 19:57:04,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:57:04 BoogieIcfgContainer [2022-11-18 19:57:04,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:57:04,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:57:04,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:57:04,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:57:04,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:56:47" (1/3) ... [2022-11-18 19:57:04,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca72c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:57:04, skipping insertion in model container [2022-11-18 19:57:04,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:52" (2/3) ... [2022-11-18 19:57:04,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca72c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:57:04, skipping insertion in model container [2022-11-18 19:57:04,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:57:04" (3/3) ... [2022-11-18 19:57:04,566 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.09.cil-2.c [2022-11-18 19:57:04,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:57:04,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 19:57:04,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:57:04,774 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5670266b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:57:04,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 19:57:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 2498 states, 2463 states have (on average 1.847340641494113) internal successors, (4550), 2468 states have internal predecessors, (4550), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-11-18 19:57:04,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:04,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:04,835 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:04,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:04,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:04,847 INFO L85 PathProgramCache]: Analyzing trace with hash 416596476, now seen corresponding path program 1 times [2022-11-18 19:57:04,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:04,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791978851] [2022-11-18 19:57:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:04,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:05,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:05,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:05,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:05,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:05,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:05,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:05,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791978851] [2022-11-18 19:57:05,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791978851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:05,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:05,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:57:05,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967590268] [2022-11-18 19:57:05,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:05,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:57:05,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:05,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:57:05,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:57:05,753 INFO L87 Difference]: Start difference. First operand has 2498 states, 2463 states have (on average 1.847340641494113) internal successors, (4550), 2468 states have internal predecessors, (4550), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:08,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:57:08,546 INFO L93 Difference]: Finished difference Result 5096 states and 9373 transitions. [2022-11-18 19:57:08,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:57:08,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:57:08,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:57:08,593 INFO L225 Difference]: With dead ends: 5096 [2022-11-18 19:57:08,593 INFO L226 Difference]: Without dead ends: 2539 [2022-11-18 19:57:08,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:57:08,613 INFO L413 NwaCegarLoop]: 4315 mSDtfsCounter, 825 mSDsluCounter, 12405 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 16720 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:57:08,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 16720 Invalid, 860 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [54 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 19:57:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2539 states. [2022-11-18 19:57:08,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2539 to 2430. [2022-11-18 19:57:08,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2397 states have (on average 1.8327075511055486) internal successors, (4393), 2400 states have internal predecessors, (4393), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-18 19:57:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 4441 transitions. [2022-11-18 19:57:08,835 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 4441 transitions. Word has length 146 [2022-11-18 19:57:08,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:57:08,836 INFO L495 AbstractCegarLoop]: Abstraction has 2430 states and 4441 transitions. [2022-11-18 19:57:08,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:08,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 4441 transitions. [2022-11-18 19:57:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:08,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:08,843 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:08,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:57:08,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:08,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:08,845 INFO L85 PathProgramCache]: Analyzing trace with hash -982357126, now seen corresponding path program 1 times [2022-11-18 19:57:08,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:08,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545396170] [2022-11-18 19:57:08,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:08,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:08,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:09,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:09,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:09,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:09,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545396170] [2022-11-18 19:57:09,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545396170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:09,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:09,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:57:09,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93548911] [2022-11-18 19:57:09,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:09,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:57:09,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:09,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:57:09,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:57:09,140 INFO L87 Difference]: Start difference. First operand 2430 states and 4441 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:13,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:57:13,081 INFO L93 Difference]: Finished difference Result 3244 states and 5752 transitions. [2022-11-18 19:57:13,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:57:13,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:57:13,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:57:13,103 INFO L225 Difference]: With dead ends: 3244 [2022-11-18 19:57:13,104 INFO L226 Difference]: Without dead ends: 2952 [2022-11-18 19:57:13,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:57:13,111 INFO L413 NwaCegarLoop]: 4251 mSDtfsCounter, 5189 mSDsluCounter, 12667 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 16918 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:57:13,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 16918 Invalid, 1962 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [104 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-18 19:57:13,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2022-11-18 19:57:13,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2733. [2022-11-18 19:57:13,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2675 states have (on average 1.8078504672897195) internal successors, (4836), 2679 states have internal predecessors, (4836), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2022-11-18 19:57:13,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 4923 transitions. [2022-11-18 19:57:13,304 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 4923 transitions. Word has length 146 [2022-11-18 19:57:13,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:57:13,307 INFO L495 AbstractCegarLoop]: Abstraction has 2733 states and 4923 transitions. [2022-11-18 19:57:13,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:13,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 4923 transitions. [2022-11-18 19:57:13,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:13,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:13,313 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:13,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:57:13,314 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:13,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:13,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1511144566, now seen corresponding path program 1 times [2022-11-18 19:57:13,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:13,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616628125] [2022-11-18 19:57:13,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:13,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:13,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:13,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:13,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:13,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:13,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:13,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:13,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616628125] [2022-11-18 19:57:13,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616628125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:13,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:13,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:13,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919841598] [2022-11-18 19:57:13,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:13,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:13,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:13,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:13,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:13,926 INFO L87 Difference]: Start difference. First operand 2733 states and 4923 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:18,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:57:18,075 INFO L93 Difference]: Finished difference Result 3972 states and 6919 transitions. [2022-11-18 19:57:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:57:18,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:57:18,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:57:18,095 INFO L225 Difference]: With dead ends: 3972 [2022-11-18 19:57:18,095 INFO L226 Difference]: Without dead ends: 3377 [2022-11-18 19:57:18,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:57:18,109 INFO L413 NwaCegarLoop]: 4423 mSDtfsCounter, 5218 mSDsluCounter, 17403 mSDsCounter, 0 mSdLazyCounter, 2809 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5234 SdHoareTripleChecker+Valid, 21826 SdHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:57:18,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5234 Valid, 21826 Invalid, 2870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 2809 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-18 19:57:18,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3377 states. [2022-11-18 19:57:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3377 to 3015. [2022-11-18 19:57:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 2932 states have (on average 1.7861527967257844) internal successors, (5237), 2937 states have internal predecessors, (5237), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2022-11-18 19:57:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 5362 transitions. [2022-11-18 19:57:18,268 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 5362 transitions. Word has length 146 [2022-11-18 19:57:18,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:57:18,269 INFO L495 AbstractCegarLoop]: Abstraction has 3015 states and 5362 transitions. [2022-11-18 19:57:18,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 5362 transitions. [2022-11-18 19:57:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:18,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:18,276 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:18,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:57:18,277 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:18,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:18,277 INFO L85 PathProgramCache]: Analyzing trace with hash 804547960, now seen corresponding path program 1 times [2022-11-18 19:57:18,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:18,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376490532] [2022-11-18 19:57:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:18,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:18,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:18,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:18,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:18,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:18,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:18,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:18,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:18,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376490532] [2022-11-18 19:57:18,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376490532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:18,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:18,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:18,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295119294] [2022-11-18 19:57:18,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:18,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:18,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:18,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:18,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:18,605 INFO L87 Difference]: Start difference. First operand 3015 states and 5362 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:22,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:57:22,710 INFO L93 Difference]: Finished difference Result 5044 states and 8626 transitions. [2022-11-18 19:57:22,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:57:22,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:57:22,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:57:22,729 INFO L225 Difference]: With dead ends: 5044 [2022-11-18 19:57:22,729 INFO L226 Difference]: Without dead ends: 4167 [2022-11-18 19:57:22,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:57:22,735 INFO L413 NwaCegarLoop]: 4421 mSDtfsCounter, 5212 mSDsluCounter, 17403 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5228 SdHoareTripleChecker+Valid, 21824 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:57:22,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5228 Valid, 21824 Invalid, 2851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2788 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-18 19:57:22,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4167 states. [2022-11-18 19:57:22,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4167 to 3583. [2022-11-18 19:57:22,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 3450 states have (on average 1.752463768115942) internal successors, (6046), 3457 states have internal predecessors, (6046), 97 states have call successors, (97), 31 states have call predecessors, (97), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2022-11-18 19:57:22,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 6251 transitions. [2022-11-18 19:57:22,984 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 6251 transitions. Word has length 146 [2022-11-18 19:57:22,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:57:22,984 INFO L495 AbstractCegarLoop]: Abstraction has 3583 states and 6251 transitions. [2022-11-18 19:57:22,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:22,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 6251 transitions. [2022-11-18 19:57:22,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:22,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:22,988 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:22,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:57:22,989 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:22,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:22,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1666381562, now seen corresponding path program 1 times [2022-11-18 19:57:22,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:22,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403594017] [2022-11-18 19:57:22,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:22,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:23,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:23,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:23,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:23,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:23,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403594017] [2022-11-18 19:57:23,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403594017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:23,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:23,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:23,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383302946] [2022-11-18 19:57:23,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:23,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:23,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:23,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:23,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:23,304 INFO L87 Difference]: Start difference. First operand 3583 states and 6251 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:57:27,953 INFO L93 Difference]: Finished difference Result 7114 states and 11903 transitions. [2022-11-18 19:57:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:57:27,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:57:27,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:57:27,983 INFO L225 Difference]: With dead ends: 7114 [2022-11-18 19:57:27,984 INFO L226 Difference]: Without dead ends: 5669 [2022-11-18 19:57:27,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:57:27,993 INFO L413 NwaCegarLoop]: 4421 mSDtfsCounter, 5211 mSDsluCounter, 17403 mSDsCounter, 0 mSdLazyCounter, 2775 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5227 SdHoareTripleChecker+Valid, 21824 SdHoareTripleChecker+Invalid, 2838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:57:27,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5227 Valid, 21824 Invalid, 2838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2775 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-18 19:57:28,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2022-11-18 19:57:28,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 4720. [2022-11-18 19:57:28,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4720 states, 4487 states have (on average 1.70804546467573) internal successors, (7664), 4498 states have internal predecessors, (7664), 169 states have call successors, (169), 55 states have call predecessors, (169), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2022-11-18 19:57:28,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 8035 transitions. [2022-11-18 19:57:28,610 INFO L78 Accepts]: Start accepts. Automaton has 4720 states and 8035 transitions. Word has length 146 [2022-11-18 19:57:28,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:57:28,611 INFO L495 AbstractCegarLoop]: Abstraction has 4720 states and 8035 transitions. [2022-11-18 19:57:28,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:28,612 INFO L276 IsEmpty]: Start isEmpty. Operand 4720 states and 8035 transitions. [2022-11-18 19:57:28,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:28,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:28,617 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:28,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:57:28,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:28,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:28,620 INFO L85 PathProgramCache]: Analyzing trace with hash -384027336, now seen corresponding path program 1 times [2022-11-18 19:57:28,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:28,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360724318] [2022-11-18 19:57:28,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:28,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:28,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:28,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:28,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:28,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:28,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:28,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360724318] [2022-11-18 19:57:28,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360724318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:28,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:28,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:28,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981483837] [2022-11-18 19:57:28,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:28,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:28,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:28,930 INFO L87 Difference]: Start difference. First operand 4720 states and 8035 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:33,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:57:33,462 INFO L93 Difference]: Finished difference Result 11253 states and 18473 transitions. [2022-11-18 19:57:33,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:57:33,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:57:33,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:57:33,520 INFO L225 Difference]: With dead ends: 11253 [2022-11-18 19:57:33,521 INFO L226 Difference]: Without dead ends: 8671 [2022-11-18 19:57:33,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:57:33,535 INFO L413 NwaCegarLoop]: 4421 mSDtfsCounter, 5210 mSDsluCounter, 17403 mSDsCounter, 0 mSdLazyCounter, 2762 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5226 SdHoareTripleChecker+Valid, 21824 SdHoareTripleChecker+Invalid, 2825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:57:33,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5226 Valid, 21824 Invalid, 2825 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2762 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-18 19:57:33,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8671 states. [2022-11-18 19:57:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8671 to 7001. [2022-11-18 19:57:34,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7001 states, 6568 states have (on average 1.6610840438489647) internal successors, (10910), 6587 states have internal predecessors, (10910), 313 states have call successors, (313), 103 states have call predecessors, (313), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2022-11-18 19:57:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 11631 transitions. [2022-11-18 19:57:34,195 INFO L78 Accepts]: Start accepts. Automaton has 7001 states and 11631 transitions. Word has length 146 [2022-11-18 19:57:34,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:57:34,196 INFO L495 AbstractCegarLoop]: Abstraction has 7001 states and 11631 transitions. [2022-11-18 19:57:34,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:34,196 INFO L276 IsEmpty]: Start isEmpty. Operand 7001 states and 11631 transitions. [2022-11-18 19:57:34,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:34,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:34,201 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:34,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:57:34,202 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:34,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash 104019770, now seen corresponding path program 1 times [2022-11-18 19:57:34,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:34,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6385320] [2022-11-18 19:57:34,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:34,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:34,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:34,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:34,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:34,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6385320] [2022-11-18 19:57:34,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6385320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:34,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:34,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:34,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527550285] [2022-11-18 19:57:34,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:34,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:34,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:34,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:34,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:34,501 INFO L87 Difference]: Start difference. First operand 7001 states and 11631 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:39,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:57:39,412 INFO L93 Difference]: Finished difference Result 19532 states and 31675 transitions. [2022-11-18 19:57:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:57:39,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:57:39,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:57:39,483 INFO L225 Difference]: With dead ends: 19532 [2022-11-18 19:57:39,483 INFO L226 Difference]: Without dead ends: 14669 [2022-11-18 19:57:39,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:57:39,508 INFO L413 NwaCegarLoop]: 4256 mSDtfsCounter, 5291 mSDsluCounter, 16867 mSDsCounter, 0 mSdLazyCounter, 2452 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5307 SdHoareTripleChecker+Valid, 21123 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:57:39,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5307 Valid, 21123 Invalid, 2547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [95 Valid, 2452 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-18 19:57:39,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14669 states. [2022-11-18 19:57:40,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14669 to 11578. [2022-11-18 19:57:40,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11578 states, 10745 states have (on average 1.621591437878083) internal successors, (17424), 10780 states have internal predecessors, (17424), 601 states have call successors, (601), 199 states have call predecessors, (601), 230 states have return successors, (874), 630 states have call predecessors, (874), 599 states have call successors, (874) [2022-11-18 19:57:40,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 18899 transitions. [2022-11-18 19:57:40,629 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 18899 transitions. Word has length 146 [2022-11-18 19:57:40,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:57:40,630 INFO L495 AbstractCegarLoop]: Abstraction has 11578 states and 18899 transitions. [2022-11-18 19:57:40,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:40,631 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 18899 transitions. [2022-11-18 19:57:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:40,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:40,640 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:40,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:57:40,640 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:40,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:40,641 INFO L85 PathProgramCache]: Analyzing trace with hash -988615432, now seen corresponding path program 1 times [2022-11-18 19:57:40,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:40,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485650123] [2022-11-18 19:57:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:40,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:40,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:40,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:40,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:40,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:40,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:40,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:40,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:40,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485650123] [2022-11-18 19:57:40,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485650123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:40,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:40,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:40,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746798426] [2022-11-18 19:57:40,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:40,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:40,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:40,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:40,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:40,918 INFO L87 Difference]: Start difference. First operand 11578 states and 18899 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:44,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:57:44,160 INFO L93 Difference]: Finished difference Result 24276 states and 39482 transitions. [2022-11-18 19:57:44,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:57:44,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:57:44,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:57:44,225 INFO L225 Difference]: With dead ends: 24276 [2022-11-18 19:57:44,226 INFO L226 Difference]: Without dead ends: 14836 [2022-11-18 19:57:44,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:57:44,264 INFO L413 NwaCegarLoop]: 4207 mSDtfsCounter, 4998 mSDsluCounter, 12485 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5015 SdHoareTripleChecker+Valid, 16692 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:57:44,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5015 Valid, 16692 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-18 19:57:44,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14836 states. [2022-11-18 19:57:45,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14836 to 11578. [2022-11-18 19:57:45,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11578 states, 10745 states have (on average 1.6185202419730107) internal successors, (17391), 10780 states have internal predecessors, (17391), 601 states have call successors, (601), 199 states have call predecessors, (601), 230 states have return successors, (874), 630 states have call predecessors, (874), 599 states have call successors, (874) [2022-11-18 19:57:45,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 18866 transitions. [2022-11-18 19:57:45,609 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 18866 transitions. Word has length 146 [2022-11-18 19:57:45,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:57:45,610 INFO L495 AbstractCegarLoop]: Abstraction has 11578 states and 18866 transitions. [2022-11-18 19:57:45,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:45,610 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 18866 transitions. [2022-11-18 19:57:45,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:45,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:45,626 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:45,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:57:45,627 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:45,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:45,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2024179578, now seen corresponding path program 1 times [2022-11-18 19:57:45,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:45,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055070051] [2022-11-18 19:57:45,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:45,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:45,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:45,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:45,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:45,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:45,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055070051] [2022-11-18 19:57:45,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055070051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:45,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:45,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:45,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788441379] [2022-11-18 19:57:45,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:45,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:45,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:45,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:45,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:45,910 INFO L87 Difference]: Start difference. First operand 11578 states and 18866 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:53,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:57:53,043 INFO L93 Difference]: Finished difference Result 36057 states and 58041 transitions. [2022-11-18 19:57:53,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:57:53,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:57:53,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:57:53,166 INFO L225 Difference]: With dead ends: 36057 [2022-11-18 19:57:53,166 INFO L226 Difference]: Without dead ends: 26617 [2022-11-18 19:57:53,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:57:53,205 INFO L413 NwaCegarLoop]: 4421 mSDtfsCounter, 5201 mSDsluCounter, 17403 mSDsCounter, 0 mSdLazyCounter, 2711 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5217 SdHoareTripleChecker+Valid, 21824 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:57:53,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5217 Valid, 21824 Invalid, 2774 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2711 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-18 19:57:53,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26617 states. [2022-11-18 19:57:55,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26617 to 20796. [2022-11-18 19:57:55,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20796 states, 19163 states have (on average 1.5898867609455722) internal successors, (30467), 19230 states have internal predecessors, (30467), 1177 states have call successors, (1177), 391 states have call predecessors, (1177), 454 states have return successors, (1968), 1238 states have call predecessors, (1968), 1175 states have call successors, (1968) [2022-11-18 19:57:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20796 states to 20796 states and 33612 transitions. [2022-11-18 19:57:56,027 INFO L78 Accepts]: Start accepts. Automaton has 20796 states and 33612 transitions. Word has length 146 [2022-11-18 19:57:56,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:57:56,028 INFO L495 AbstractCegarLoop]: Abstraction has 20796 states and 33612 transitions. [2022-11-18 19:57:56,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:57:56,028 INFO L276 IsEmpty]: Start isEmpty. Operand 20796 states and 33612 transitions. [2022-11-18 19:57:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:57:56,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:57:56,046 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:57:56,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:57:56,046 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:57:56,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:56,047 INFO L85 PathProgramCache]: Analyzing trace with hash 181703864, now seen corresponding path program 1 times [2022-11-18 19:57:56,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:56,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504691307] [2022-11-18 19:57:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:56,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:56,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:57:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:56,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:57:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:56,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:57:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:56,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:57:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:56,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:57:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:56,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:56,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:56,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504691307] [2022-11-18 19:57:56,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504691307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:56,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:56,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:56,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104606931] [2022-11-18 19:57:56,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:56,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:56,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:56,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:56,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:56,307 INFO L87 Difference]: Start difference. First operand 20796 states and 33612 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:58:07,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:58:07,212 INFO L93 Difference]: Finished difference Result 69177 states and 111649 transitions. [2022-11-18 19:58:07,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:58:07,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:58:07,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:58:07,449 INFO L225 Difference]: With dead ends: 69177 [2022-11-18 19:58:07,449 INFO L226 Difference]: Without dead ends: 50519 [2022-11-18 19:58:07,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:58:07,507 INFO L413 NwaCegarLoop]: 4421 mSDtfsCounter, 5206 mSDsluCounter, 17403 mSDsCounter, 0 mSdLazyCounter, 2693 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5222 SdHoareTripleChecker+Valid, 21824 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:58:07,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5222 Valid, 21824 Invalid, 2756 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2693 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-18 19:58:07,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50519 states. [2022-11-18 19:58:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50519 to 39293. [2022-11-18 19:58:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39293 states, 36060 states have (on average 1.5726289517470882) internal successors, (56709), 36191 states have internal predecessors, (56709), 2329 states have call successors, (2329), 775 states have call predecessors, (2329), 902 states have return successors, (4642), 2454 states have call predecessors, (4642), 2327 states have call successors, (4642) [2022-11-18 19:58:13,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39293 states to 39293 states and 63680 transitions. [2022-11-18 19:58:13,418 INFO L78 Accepts]: Start accepts. Automaton has 39293 states and 63680 transitions. Word has length 146 [2022-11-18 19:58:13,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:58:13,419 INFO L495 AbstractCegarLoop]: Abstraction has 39293 states and 63680 transitions. [2022-11-18 19:58:13,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:58:13,420 INFO L276 IsEmpty]: Start isEmpty. Operand 39293 states and 63680 transitions. [2022-11-18 19:58:13,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 19:58:13,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:58:13,452 INFO L195 NwaCegarLoop]: 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] [2022-11-18 19:58:13,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:58:13,453 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:58:13,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:13,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1540298822, now seen corresponding path program 1 times [2022-11-18 19:58:13,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:13,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429623204] [2022-11-18 19:58:13,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:13,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:13,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:58:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:58:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:13,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:58:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:13,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:58:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:58:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:13,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:13,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429623204] [2022-11-18 19:58:13,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429623204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:13,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:13,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:58:13,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797468145] [2022-11-18 19:58:13,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:13,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:58:13,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:13,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:58:13,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:58:13,885 INFO L87 Difference]: Start difference. First operand 39293 states and 63680 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:58:39,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:58:39,924 INFO L93 Difference]: Finished difference Result 151030 states and 244645 transitions. [2022-11-18 19:58:39,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:58:39,927 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 146 [2022-11-18 19:58:39,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:58:40,760 INFO L225 Difference]: With dead ends: 151030 [2022-11-18 19:58:40,760 INFO L226 Difference]: Without dead ends: 113875 [2022-11-18 19:58:40,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:58:40,894 INFO L413 NwaCegarLoop]: 4418 mSDtfsCounter, 5283 mSDsluCounter, 17392 mSDsCounter, 0 mSdLazyCounter, 3212 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5298 SdHoareTripleChecker+Valid, 21810 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:58:40,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5298 Valid, 21810 Invalid, 3277 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3212 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-18 19:58:40,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113875 states.