./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF --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 216404335c43b82447a03ad9d88ac8bc18e7528b04f40169d87fb26955d8753c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:22:31,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:22:31,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:22:31,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:22:31,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:22:31,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:22:31,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:22:31,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:22:31,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:22:31,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:22:31,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:22:31,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:22:31,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:22:31,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:22:31,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:22:31,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:22:31,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:22:31,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:22:31,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:22:31,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:22:31,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:22:31,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:22:31,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:22:31,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:22:31,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:22:31,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:22:31,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:22:31,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:22:31,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:22:31,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:22:31,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:22:31,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:22:31,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:22:31,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:22:31,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:22:31,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:22:31,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:22:31,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:22:31,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:22:31,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:22:31,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:22:31,528 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:22:31,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:22:31,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:22:31,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:22:31,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:22:31,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:22:31,583 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:22:31,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:22:31,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:22:31,585 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:22:31,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:22:31,586 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:22:31,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:22:31,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:22:31,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:22:31,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:22:31,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:22:31,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:22:31,589 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:22:31,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:22:31,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:22:31,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:22:31,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:22:31,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:22:31,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:22:31,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:22:31,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:22:31,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:22:31,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:22:31,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:22:31,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:22:31,594 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:22:31,594 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:22:31,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:22:31,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:22:31,595 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_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 216404335c43b82447a03ad9d88ac8bc18e7528b04f40169d87fb26955d8753c [2021-11-20 07:22:31,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:22:32,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:22:32,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:22:32,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:22:32,007 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:22:32,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c [2021-11-20 07:22:32,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/data/1d33054ff/596464bfc7994815b3f743d1acd519cb/FLAG8d2ec7745 [2021-11-20 07:22:33,375 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:22:33,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c [2021-11-20 07:22:33,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/data/1d33054ff/596464bfc7994815b3f743d1acd519cb/FLAG8d2ec7745 [2021-11-20 07:22:33,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/data/1d33054ff/596464bfc7994815b3f743d1acd519cb [2021-11-20 07:22:33,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:22:33,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:22:33,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:22:33,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:22:33,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:22:33,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:22:33" (1/1) ... [2021-11-20 07:22:33,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7d841d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:33, skipping insertion in model container [2021-11-20 07:22:33,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:22:33" (1/1) ... [2021-11-20 07:22:33,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:22:33,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:22:36,597 WARN L230 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_064cc88c-319f-45e0-b4c1-300a4b679e9d/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c[378560,378573] [2021-11-20 07:22:36,636 WARN L230 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_064cc88c-319f-45e0-b4c1-300a4b679e9d/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c[383339,383352] [2021-11-20 07:22:37,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:22:37,207 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:22:38,549 WARN L230 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_064cc88c-319f-45e0-b4c1-300a4b679e9d/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c[378560,378573] [2021-11-20 07:22:38,559 WARN L230 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_064cc88c-319f-45e0-b4c1-300a4b679e9d/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c[383339,383352] [2021-11-20 07:22:38,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:22:38,733 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:22:38,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38 WrapperNode [2021-11-20 07:22:38,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:22:38,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:22:38,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:22:38,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:22:38,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:38,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:39,382 INFO L137 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2021-11-20 07:22:39,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:22:39,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:22:39,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:22:39,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:22:39,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:39,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:39,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:39,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:39,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:39,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:40,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:40,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:22:40,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:22:40,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:22:40,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:22:40,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (1/1) ... [2021-11-20 07:22:40,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:22:40,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:22:40,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:22:40,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064cc88c-319f-45e0-b4c1-300a4b679e9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:22:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:22:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-20 07:22:40,419 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-20 07:22:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-20 07:22:40,419 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-20 07:22:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-20 07:22:40,419 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-20 07:22:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-20 07:22:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-20 07:22:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-20 07:22:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-20 07:22:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-20 07:22:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-20 07:22:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:22:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:22:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:22:40,679 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:22:40,696 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:22:50,100 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:22:50,144 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:22:50,145 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-20 07:22:50,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:50 BoogieIcfgContainer [2021-11-20 07:22:50,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:22:50,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:22:50,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:22:50,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:22:50,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:22:33" (1/3) ... [2021-11-20 07:22:50,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c17c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:22:50, skipping insertion in model container [2021-11-20 07:22:50,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:38" (2/3) ... [2021-11-20 07:22:50,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c17c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:22:50, skipping insertion in model container [2021-11-20 07:22:50,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:50" (3/3) ... [2021-11-20 07:22:50,167 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.13.cil-2.c [2021-11-20 07:22:50,177 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:22:50,178 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 07:22:50,269 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:22:50,278 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:22:50,278 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 07:22:50,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-20 07:22:50,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:22:50,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:22:50,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:22:50,406 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:22:50,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:22:50,413 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2021-11-20 07:22:50,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:22:50,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226135719] [2021-11-20 07:22:50,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:22:50,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:22:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:50,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:22:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:50,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:22:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:50,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:22:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:51,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:22:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:51,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:22:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:22:51,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:22:51,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226135719] [2021-11-20 07:22:51,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226135719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:22:51,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:22:51,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:22:51,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086972366] [2021-11-20 07:22:51,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:22:51,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:22:51,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:22:51,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:22:51,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:22:51,288 INFO L87 Difference]: Start difference. First operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:22:54,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:22:54,186 INFO L93 Difference]: Finished difference Result 5325 states and 9765 transitions. [2021-11-20 07:22:54,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:22:54,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:22:54,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:22:54,237 INFO L225 Difference]: With dead ends: 5325 [2021-11-20 07:22:54,237 INFO L226 Difference]: Without dead ends: 2676 [2021-11-20 07:22:54,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:22:54,259 INFO L933 BasicCegarLoop]: 4729 mSDtfsCounter, 1107 mSDsluCounter, 12512 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 17241 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:22:54,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 17241 Invalid, 817 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [62 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 07:22:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2021-11-20 07:22:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2021-11-20 07:22:54,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8243569131832797) internal successors, (4539), 2490 states have internal predecessors, (4539), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-20 07:22:54,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4593 transitions. [2021-11-20 07:22:54,580 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4593 transitions. Word has length 189 [2021-11-20 07:22:54,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:22:54,582 INFO L470 AbstractCegarLoop]: Abstraction has 2523 states and 4593 transitions. [2021-11-20 07:22:54,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:22:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4593 transitions. [2021-11-20 07:22:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:22:54,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:22:54,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:22:54,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:22:54,606 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:22:54,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:22:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1444519429, now seen corresponding path program 1 times [2021-11-20 07:22:54,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:22:54,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364198640] [2021-11-20 07:22:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:22:54,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:22:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:54,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:22:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:54,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:22:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:54,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:22:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:55,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:22:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:55,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:22:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:22:55,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:22:55,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364198640] [2021-11-20 07:22:55,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364198640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:22:55,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:22:55,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:22:55,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660505126] [2021-11-20 07:22:55,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:22:55,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:22:55,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:22:55,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:22:55,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:22:55,080 INFO L87 Difference]: Start difference. First operand 2523 states and 4593 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:22:57,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:22:57,502 INFO L93 Difference]: Finished difference Result 3061 states and 5463 transitions. [2021-11-20 07:22:57,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:22:57,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:22:57,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:22:57,526 INFO L225 Difference]: With dead ends: 3061 [2021-11-20 07:22:57,527 INFO L226 Difference]: Without dead ends: 2676 [2021-11-20 07:22:57,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:22:57,532 INFO L933 BasicCegarLoop]: 4659 mSDtfsCounter, 1093 mSDsluCounter, 12309 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 16968 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:22:57,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 16968 Invalid, 816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 07:22:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2021-11-20 07:22:57,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2021-11-20 07:22:57,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8239549839228295) internal successors, (4538), 2490 states have internal predecessors, (4538), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-20 07:22:57,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4592 transitions. [2021-11-20 07:22:57,669 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4592 transitions. Word has length 189 [2021-11-20 07:22:57,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:22:57,669 INFO L470 AbstractCegarLoop]: Abstraction has 2523 states and 4592 transitions. [2021-11-20 07:22:57,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:22:57,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4592 transitions. [2021-11-20 07:22:57,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:22:57,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:22:57,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:22:57,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:22:57,675 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:22:57,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:22:57,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1347349561, now seen corresponding path program 1 times [2021-11-20 07:22:57,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:22:57,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871195750] [2021-11-20 07:22:57,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:22:57,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:22:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:57,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:22:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:57,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:22:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:57,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:22:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:57,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:22:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:57,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:22:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:22:57,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:22:57,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:22:57,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871195750] [2021-11-20 07:22:57,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871195750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:22:57,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:22:57,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:22:57,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797027819] [2021-11-20 07:22:57,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:22:57,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:22:57,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:22:57,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:22:57,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:22:57,921 INFO L87 Difference]: Start difference. First operand 2523 states and 4592 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:03,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:03,044 INFO L93 Difference]: Finished difference Result 3611 states and 6359 transitions. [2021-11-20 07:23:03,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 07:23:03,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:03,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:03,074 INFO L225 Difference]: With dead ends: 3611 [2021-11-20 07:23:03,074 INFO L226 Difference]: Without dead ends: 3230 [2021-11-20 07:23:03,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:23:03,080 INFO L933 BasicCegarLoop]: 4715 mSDtfsCounter, 5624 mSDsluCounter, 12944 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5644 SdHoareTripleChecker+Valid, 17659 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:03,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5644 Valid, 17659 Invalid, 2215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-20 07:23:03,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2021-11-20 07:23:03,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2925. [2021-11-20 07:23:03,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7948269835721775) internal successors, (5135), 2864 states have internal predecessors, (5135), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2021-11-20 07:23:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5236 transitions. [2021-11-20 07:23:03,273 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5236 transitions. Word has length 189 [2021-11-20 07:23:03,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:03,273 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5236 transitions. [2021-11-20 07:23:03,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:03,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5236 transitions. [2021-11-20 07:23:03,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:03,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:03,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:03,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:23:03,279 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:03,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:03,280 INFO L85 PathProgramCache]: Analyzing trace with hash 671278923, now seen corresponding path program 1 times [2021-11-20 07:23:03,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:03,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505390918] [2021-11-20 07:23:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:03,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:03,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:03,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:03,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:03,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:03,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505390918] [2021-11-20 07:23:03,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505390918] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:03,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:03,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:03,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736983147] [2021-11-20 07:23:03,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:03,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:03,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:03,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:03,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:03,576 INFO L87 Difference]: Start difference. First operand 2925 states and 5236 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:06,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:06,893 INFO L93 Difference]: Finished difference Result 4037 states and 7051 transitions. [2021-11-20 07:23:06,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:23:06,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:06,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:06,926 INFO L225 Difference]: With dead ends: 4037 [2021-11-20 07:23:06,927 INFO L226 Difference]: Without dead ends: 3254 [2021-11-20 07:23:06,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:23:06,945 INFO L933 BasicCegarLoop]: 4656 mSDtfsCounter, 5157 mSDsluCounter, 16826 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5178 SdHoareTripleChecker+Valid, 21482 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:06,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5178 Valid, 21482 Invalid, 1711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 07:23:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2021-11-20 07:23:07,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2925. [2021-11-20 07:23:07,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7941279272981474) internal successors, (5133), 2864 states have internal predecessors, (5133), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2021-11-20 07:23:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5234 transitions. [2021-11-20 07:23:07,123 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5234 transitions. Word has length 189 [2021-11-20 07:23:07,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:07,125 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5234 transitions. [2021-11-20 07:23:07,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:07,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5234 transitions. [2021-11-20 07:23:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:07,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:07,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:07,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:23:07,136 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:07,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:07,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1053329399, now seen corresponding path program 1 times [2021-11-20 07:23:07,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:07,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809722632] [2021-11-20 07:23:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:07,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:07,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:07,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:07,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:07,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:07,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809722632] [2021-11-20 07:23:07,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809722632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:07,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:07,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:07,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510727720] [2021-11-20 07:23:07,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:07,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:07,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:07,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:07,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:07,378 INFO L87 Difference]: Start difference. First operand 2925 states and 5234 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:12,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:12,632 INFO L93 Difference]: Finished difference Result 4586 states and 7932 transitions. [2021-11-20 07:23:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:23:12,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:12,672 INFO L225 Difference]: With dead ends: 4586 [2021-11-20 07:23:12,672 INFO L226 Difference]: Without dead ends: 3803 [2021-11-20 07:23:12,678 INFO L932 BasicCegarLoop]: 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 [2021-11-20 07:23:12,681 INFO L933 BasicCegarLoop]: 5026 mSDtfsCounter, 5655 mSDsluCounter, 17899 mSDsCounter, 0 mSdLazyCounter, 3266 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5675 SdHoareTripleChecker+Valid, 22925 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:12,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5675 Valid, 22925 Invalid, 3351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [85 Valid, 3266 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-11-20 07:23:12,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2021-11-20 07:23:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3299. [2021-11-20 07:23:12,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 3206 states have (on average 1.7694946974422956) internal successors, (5673), 3210 states have internal predecessors, (5673), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2021-11-20 07:23:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 5820 transitions. [2021-11-20 07:23:12,897 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 5820 transitions. Word has length 189 [2021-11-20 07:23:12,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:12,899 INFO L470 AbstractCegarLoop]: Abstraction has 3299 states and 5820 transitions. [2021-11-20 07:23:12,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 5820 transitions. [2021-11-20 07:23:12,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:12,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:12,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:12,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:23:12,905 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:12,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:12,906 INFO L85 PathProgramCache]: Analyzing trace with hash -483057593, now seen corresponding path program 1 times [2021-11-20 07:23:12,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:12,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996900049] [2021-11-20 07:23:12,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:12,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:13,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:13,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:13,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:13,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:13,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996900049] [2021-11-20 07:23:13,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996900049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:13,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:13,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:13,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255487645] [2021-11-20 07:23:13,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:13,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:13,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:13,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:13,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:13,183 INFO L87 Difference]: Start difference. First operand 3299 states and 5820 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:18,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:18,326 INFO L93 Difference]: Finished difference Result 6024 states and 10234 transitions. [2021-11-20 07:23:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:23:18,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:18,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:18,366 INFO L225 Difference]: With dead ends: 6024 [2021-11-20 07:23:18,366 INFO L226 Difference]: Without dead ends: 4867 [2021-11-20 07:23:18,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-11-20 07:23:18,375 INFO L933 BasicCegarLoop]: 5019 mSDtfsCounter, 5651 mSDsluCounter, 17895 mSDsCounter, 0 mSdLazyCounter, 3250 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5671 SdHoareTripleChecker+Valid, 22914 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:18,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5671 Valid, 22914 Invalid, 3336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3250 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-20 07:23:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4867 states. [2021-11-20 07:23:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4867 to 4050. [2021-11-20 07:23:18,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 3899 states have (on average 1.7332649397281354) internal successors, (6758), 3905 states have internal predecessors, (6758), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2021-11-20 07:23:18,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 7001 transitions. [2021-11-20 07:23:18,699 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 7001 transitions. Word has length 189 [2021-11-20 07:23:18,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:18,700 INFO L470 AbstractCegarLoop]: Abstraction has 4050 states and 7001 transitions. [2021-11-20 07:23:18,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:18,702 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 7001 transitions. [2021-11-20 07:23:18,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:18,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:18,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:18,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:23:18,708 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:18,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:18,709 INFO L85 PathProgramCache]: Analyzing trace with hash 920811593, now seen corresponding path program 1 times [2021-11-20 07:23:18,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:18,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397044895] [2021-11-20 07:23:18,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:18,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:18,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:18,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:18,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:18,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:18,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:18,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397044895] [2021-11-20 07:23:18,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397044895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:18,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:18,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:18,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554191746] [2021-11-20 07:23:18,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:18,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:18,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:18,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:18,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:18,959 INFO L87 Difference]: Start difference. First operand 4050 states and 7001 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:21,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:21,405 INFO L93 Difference]: Finished difference Result 6765 states and 11406 transitions. [2021-11-20 07:23:21,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:23:21,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:21,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:21,464 INFO L225 Difference]: With dead ends: 6765 [2021-11-20 07:23:21,464 INFO L226 Difference]: Without dead ends: 4857 [2021-11-20 07:23:21,474 INFO L932 BasicCegarLoop]: 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 [2021-11-20 07:23:21,476 INFO L933 BasicCegarLoop]: 4643 mSDtfsCounter, 5334 mSDsluCounter, 12661 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5355 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:21,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5355 Valid, 17304 Invalid, 1523 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 07:23:21,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2021-11-20 07:23:21,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 4050. [2021-11-20 07:23:21,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 3899 states have (on average 1.7319825596306746) internal successors, (6753), 3905 states have internal predecessors, (6753), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2021-11-20 07:23:21,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 6996 transitions. [2021-11-20 07:23:21,831 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 6996 transitions. Word has length 189 [2021-11-20 07:23:21,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:21,832 INFO L470 AbstractCegarLoop]: Abstraction has 4050 states and 6996 transitions. [2021-11-20 07:23:21,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:21,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 6996 transitions. [2021-11-20 07:23:21,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:21,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:21,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:21,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:23:21,840 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:21,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:21,840 INFO L85 PathProgramCache]: Analyzing trace with hash 134813703, now seen corresponding path program 1 times [2021-11-20 07:23:21,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:21,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645962782] [2021-11-20 07:23:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:21,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:22,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:22,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:22,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:22,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:22,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:22,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645962782] [2021-11-20 07:23:22,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645962782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:22,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:22,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:22,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37405248] [2021-11-20 07:23:22,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:22,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:22,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:22,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:22,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:22,118 INFO L87 Difference]: Start difference. First operand 4050 states and 6996 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:24,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:24,196 INFO L93 Difference]: Finished difference Result 6759 states and 11379 transitions. [2021-11-20 07:23:24,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:23:24,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:24,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:24,223 INFO L225 Difference]: With dead ends: 6759 [2021-11-20 07:23:24,223 INFO L226 Difference]: Without dead ends: 4851 [2021-11-20 07:23:24,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:23:24,235 INFO L933 BasicCegarLoop]: 4595 mSDtfsCounter, 5418 mSDsluCounter, 12660 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5439 SdHoareTripleChecker+Valid, 17255 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:24,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5439 Valid, 17255 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 07:23:24,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2021-11-20 07:23:24,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 4050. [2021-11-20 07:23:24,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 3899 states have (on average 1.7307001795332135) internal successors, (6748), 3905 states have internal predecessors, (6748), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2021-11-20 07:23:24,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 6991 transitions. [2021-11-20 07:23:24,539 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 6991 transitions. Word has length 189 [2021-11-20 07:23:24,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:24,539 INFO L470 AbstractCegarLoop]: Abstraction has 4050 states and 6991 transitions. [2021-11-20 07:23:24,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:24,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 6991 transitions. [2021-11-20 07:23:24,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:24,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:24,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:24,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 07:23:24,546 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:24,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:24,546 INFO L85 PathProgramCache]: Analyzing trace with hash 802195593, now seen corresponding path program 1 times [2021-11-20 07:23:24,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:24,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143346130] [2021-11-20 07:23:24,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:24,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:24,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:24,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:24,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:24,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:24,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:24,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143346130] [2021-11-20 07:23:24,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143346130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:24,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:24,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:24,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737217780] [2021-11-20 07:23:24,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:24,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:24,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:24,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:24,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:24,751 INFO L87 Difference]: Start difference. First operand 4050 states and 6991 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:26,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:26,968 INFO L93 Difference]: Finished difference Result 6753 states and 11352 transitions. [2021-11-20 07:23:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:23:26,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:26,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:26,987 INFO L225 Difference]: With dead ends: 6753 [2021-11-20 07:23:26,987 INFO L226 Difference]: Without dead ends: 4845 [2021-11-20 07:23:26,995 INFO L932 BasicCegarLoop]: 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 [2021-11-20 07:23:26,996 INFO L933 BasicCegarLoop]: 4635 mSDtfsCounter, 5330 mSDsluCounter, 12661 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5351 SdHoareTripleChecker+Valid, 17296 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:26,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5351 Valid, 17296 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 07:23:27,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2021-11-20 07:23:27,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4050. [2021-11-20 07:23:27,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 3899 states have (on average 1.7294177994357527) internal successors, (6743), 3905 states have internal predecessors, (6743), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2021-11-20 07:23:27,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 6986 transitions. [2021-11-20 07:23:27,278 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 6986 transitions. Word has length 189 [2021-11-20 07:23:27,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:27,278 INFO L470 AbstractCegarLoop]: Abstraction has 4050 states and 6986 transitions. [2021-11-20 07:23:27,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 6986 transitions. [2021-11-20 07:23:27,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:27,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:27,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:27,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 07:23:27,284 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:27,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1393033273, now seen corresponding path program 1 times [2021-11-20 07:23:27,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:27,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988351496] [2021-11-20 07:23:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:27,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:27,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:27,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:27,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:27,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:27,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988351496] [2021-11-20 07:23:27,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988351496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:27,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:27,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:27,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837441578] [2021-11-20 07:23:27,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:27,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:27,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:27,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:27,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:27,520 INFO L87 Difference]: Start difference. First operand 4050 states and 6986 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:32,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:32,231 INFO L93 Difference]: Finished difference Result 8781 states and 14543 transitions. [2021-11-20 07:23:32,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:23:32,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:32,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:32,266 INFO L225 Difference]: With dead ends: 8781 [2021-11-20 07:23:32,267 INFO L226 Difference]: Without dead ends: 6873 [2021-11-20 07:23:32,275 INFO L932 BasicCegarLoop]: 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 [2021-11-20 07:23:32,276 INFO L933 BasicCegarLoop]: 4996 mSDtfsCounter, 5629 mSDsluCounter, 17895 mSDsCounter, 0 mSdLazyCounter, 3185 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5649 SdHoareTripleChecker+Valid, 22891 SdHoareTripleChecker+Invalid, 3271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:32,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5649 Valid, 22891 Invalid, 3271 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3185 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-20 07:23:32,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2021-11-20 07:23:32,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 5570. [2021-11-20 07:23:32,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5570 states, 5303 states have (on average 1.6826324721855555) internal successors, (8923), 5313 states have internal predecessors, (8923), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2021-11-20 07:23:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5570 states to 5570 states and 9364 transitions. [2021-11-20 07:23:32,621 INFO L78 Accepts]: Start accepts. Automaton has 5570 states and 9364 transitions. Word has length 189 [2021-11-20 07:23:32,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:32,622 INFO L470 AbstractCegarLoop]: Abstraction has 5570 states and 9364 transitions. [2021-11-20 07:23:32,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:32,623 INFO L276 IsEmpty]: Start isEmpty. Operand 5570 states and 9364 transitions. [2021-11-20 07:23:32,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:32,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:32,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:32,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 07:23:32,629 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:32,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1048205111, now seen corresponding path program 1 times [2021-11-20 07:23:32,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:32,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310884170] [2021-11-20 07:23:32,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:32,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:32,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:32,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:32,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:32,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:32,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:32,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310884170] [2021-11-20 07:23:32,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310884170] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:32,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:32,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:32,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302439386] [2021-11-20 07:23:32,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:32,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:32,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:32,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:32,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:32,847 INFO L87 Difference]: Start difference. First operand 5570 states and 9364 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:38,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:38,054 INFO L93 Difference]: Finished difference Result 14335 states and 23331 transitions. [2021-11-20 07:23:38,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:23:38,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:38,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:38,095 INFO L225 Difference]: With dead ends: 14335 [2021-11-20 07:23:38,095 INFO L226 Difference]: Without dead ends: 10907 [2021-11-20 07:23:38,112 INFO L932 BasicCegarLoop]: 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 [2021-11-20 07:23:38,113 INFO L933 BasicCegarLoop]: 4989 mSDtfsCounter, 5631 mSDsluCounter, 17895 mSDsCounter, 0 mSdLazyCounter, 3174 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5651 SdHoareTripleChecker+Valid, 22884 SdHoareTripleChecker+Invalid, 3263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:38,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5651 Valid, 22884 Invalid, 3263 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [89 Valid, 3174 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-20 07:23:38,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10907 states. [2021-11-20 07:23:38,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10907 to 8611. [2021-11-20 07:23:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8611 states, 8112 states have (on average 1.6372041420118344) internal successors, (13281), 8130 states have internal predecessors, (13281), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2021-11-20 07:23:38,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8611 states to 8611 states and 14136 transitions. [2021-11-20 07:23:38,858 INFO L78 Accepts]: Start accepts. Automaton has 8611 states and 14136 transitions. Word has length 189 [2021-11-20 07:23:38,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:38,858 INFO L470 AbstractCegarLoop]: Abstraction has 8611 states and 14136 transitions. [2021-11-20 07:23:38,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:38,859 INFO L276 IsEmpty]: Start isEmpty. Operand 8611 states and 14136 transitions. [2021-11-20 07:23:38,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:38,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:38,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:38,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 07:23:38,868 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:38,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:38,869 INFO L85 PathProgramCache]: Analyzing trace with hash -67250297, now seen corresponding path program 1 times [2021-11-20 07:23:38,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:38,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142073933] [2021-11-20 07:23:38,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:38,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:38,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:39,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:39,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:39,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142073933] [2021-11-20 07:23:39,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142073933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:39,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:39,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:39,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833124485] [2021-11-20 07:23:39,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:39,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:39,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:39,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:39,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:39,073 INFO L87 Difference]: Start difference. First operand 8611 states and 14136 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:44,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:44,995 INFO L93 Difference]: Finished difference Result 25420 states and 40921 transitions. [2021-11-20 07:23:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:23:44,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:44,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:45,066 INFO L225 Difference]: With dead ends: 25420 [2021-11-20 07:23:45,066 INFO L226 Difference]: Without dead ends: 18951 [2021-11-20 07:23:45,101 INFO L932 BasicCegarLoop]: 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 [2021-11-20 07:23:45,102 INFO L933 BasicCegarLoop]: 4980 mSDtfsCounter, 5626 mSDsluCounter, 17895 mSDsCounter, 0 mSdLazyCounter, 3156 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5646 SdHoareTripleChecker+Valid, 22875 SdHoareTripleChecker+Invalid, 3245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:45,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5646 Valid, 22875 Invalid, 3245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [89 Valid, 3156 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-20 07:23:45,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18951 states. [2021-11-20 07:23:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18951 to 14725. [2021-11-20 07:23:46,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14725 states, 13762 states have (on average 1.6024560383665165) internal successors, (22053), 13796 states have internal predecessors, (22053), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2021-11-20 07:23:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14725 states to 14725 states and 23790 transitions. [2021-11-20 07:23:46,411 INFO L78 Accepts]: Start accepts. Automaton has 14725 states and 23790 transitions. Word has length 189 [2021-11-20 07:23:46,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:46,411 INFO L470 AbstractCegarLoop]: Abstraction has 14725 states and 23790 transitions. [2021-11-20 07:23:46,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:46,412 INFO L276 IsEmpty]: Start isEmpty. Operand 14725 states and 23790 transitions. [2021-11-20 07:23:46,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:46,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:46,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:46,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 07:23:46,427 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:46,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:46,428 INFO L85 PathProgramCache]: Analyzing trace with hash -678519355, now seen corresponding path program 1 times [2021-11-20 07:23:46,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:46,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611330289] [2021-11-20 07:23:46,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:46,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:46,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:46,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:46,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:46,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611330289] [2021-11-20 07:23:46,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611330289] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:46,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:46,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:46,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732627318] [2021-11-20 07:23:46,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:46,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:46,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:46,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:46,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:46,659 INFO L87 Difference]: Start difference. First operand 14725 states and 23790 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:54,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:54,226 INFO L93 Difference]: Finished difference Result 47628 states and 76369 transitions. [2021-11-20 07:23:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:23:54,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:23:54,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:54,369 INFO L225 Difference]: With dead ends: 47628 [2021-11-20 07:23:54,369 INFO L226 Difference]: Without dead ends: 35045 [2021-11-20 07:23:54,422 INFO L932 BasicCegarLoop]: 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 [2021-11-20 07:23:54,424 INFO L933 BasicCegarLoop]: 4975 mSDtfsCounter, 5625 mSDsluCounter, 17895 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5645 SdHoareTripleChecker+Valid, 22870 SdHoareTripleChecker+Invalid, 3237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:54,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5645 Valid, 22870 Invalid, 3237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [89 Valid, 3148 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-20 07:23:54,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35045 states. [2021-11-20 07:23:57,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35045 to 26982. [2021-11-20 07:23:57,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26982 states, 25091 states have (on average 1.5798094934438642) internal successors, (39639), 25157 states have internal predecessors, (39639), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2021-11-20 07:23:57,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26982 states to 26982 states and 43302 transitions. [2021-11-20 07:23:57,385 INFO L78 Accepts]: Start accepts. Automaton has 26982 states and 43302 transitions. Word has length 189 [2021-11-20 07:23:57,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:57,385 INFO L470 AbstractCegarLoop]: Abstraction has 26982 states and 43302 transitions. [2021-11-20 07:23:57,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:23:57,386 INFO L276 IsEmpty]: Start isEmpty. Operand 26982 states and 43302 transitions. [2021-11-20 07:23:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:23:57,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:57,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:57,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 07:23:57,411 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:57,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:57,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2083711033, now seen corresponding path program 1 times [2021-11-20 07:23:57,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:57,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868075461] [2021-11-20 07:23:57,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:57,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:57,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:23:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:57,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:23:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:57,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:23:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:57,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:23:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:57,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:23:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:57,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:57,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:23:57,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868075461] [2021-11-20 07:23:57,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868075461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:57,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:57,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:23:57,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638738002] [2021-11-20 07:23:57,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:57,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:57,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:23:57,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:57,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:23:57,621 INFO L87 Difference]: Start difference. First operand 26982 states and 43302 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:24:08,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:24:08,862 INFO L93 Difference]: Finished difference Result 92043 states and 147863 transitions. [2021-11-20 07:24:08,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:24:08,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:24:08,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:24:09,175 INFO L225 Difference]: With dead ends: 92043 [2021-11-20 07:24:09,175 INFO L226 Difference]: Without dead ends: 67203 [2021-11-20 07:24:09,289 INFO L932 BasicCegarLoop]: 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 [2021-11-20 07:24:09,290 INFO L933 BasicCegarLoop]: 4970 mSDtfsCounter, 5624 mSDsluCounter, 17895 mSDsCounter, 0 mSdLazyCounter, 3140 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5644 SdHoareTripleChecker+Valid, 22865 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:24:09,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5644 Valid, 22865 Invalid, 3229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [89 Valid, 3140 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-20 07:24:09,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67203 states. [2021-11-20 07:24:14,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67203 to 51559. [2021-11-20 07:24:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51559 states, 47812 states have (on average 1.5666569062160127) internal successors, (74905), 47942 states have internal predecessors, (74905), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2021-11-20 07:24:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51559 states to 51559 states and 82906 transitions. [2021-11-20 07:24:15,308 INFO L78 Accepts]: Start accepts. Automaton has 51559 states and 82906 transitions. Word has length 189 [2021-11-20 07:24:15,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:24:15,309 INFO L470 AbstractCegarLoop]: Abstraction has 51559 states and 82906 transitions. [2021-11-20 07:24:15,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:24:15,309 INFO L276 IsEmpty]: Start isEmpty. Operand 51559 states and 82906 transitions. [2021-11-20 07:24:15,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:24:15,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:24:15,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:24:15,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 07:24:15,354 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:24:15,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:15,355 INFO L85 PathProgramCache]: Analyzing trace with hash -189377147, now seen corresponding path program 1 times [2021-11-20 07:24:15,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:15,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981543338] [2021-11-20 07:24:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:15,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:24:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:24:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:15,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 07:24:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:15,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 07:24:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:15,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:24:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:15,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:24:15,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:24:15,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981543338] [2021-11-20 07:24:15,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981543338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:24:15,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:24:15,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:24:15,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36982056] [2021-11-20 07:24:15,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:24:15,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:24:15,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:24:15,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:24:15,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:24:15,582 INFO L87 Difference]: Start difference. First operand 51559 states and 82906 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:24:41,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:24:41,076 INFO L93 Difference]: Finished difference Result 205322 states and 330335 transitions. [2021-11-20 07:24:41,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:24:41,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2021-11-20 07:24:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:24:41,663 INFO L225 Difference]: With dead ends: 205322 [2021-11-20 07:24:41,664 INFO L226 Difference]: Without dead ends: 155905 [2021-11-20 07:24:41,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-11-20 07:24:41,825 INFO L933 BasicCegarLoop]: 4714 mSDtfsCounter, 6241 mSDsluCounter, 17189 mSDsCounter, 0 mSdLazyCounter, 2798 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6275 SdHoareTripleChecker+Valid, 21903 SdHoareTripleChecker+Invalid, 2934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 2798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:24:41,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6275 Valid, 21903 Invalid, 2934 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [136 Valid, 2798 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-20 07:24:41,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155905 states.