./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8 --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 5486e3f63bfe23a44d43a7bb73e094c79a86db839c48318d8de3614bb7e48420 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:27:46,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:27:46,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:27:46,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:27:46,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:27:46,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:27:46,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:27:46,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:27:46,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:27:46,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:27:46,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:27:46,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:27:46,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:27:46,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:27:46,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:27:46,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:27:46,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:27:46,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:27:46,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:27:46,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:27:46,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:27:46,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:27:46,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:27:46,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:27:46,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:27:46,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:27:46,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:27:46,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:27:46,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:27:46,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:27:46,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:27:46,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:27:46,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:27:46,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:27:46,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:27:46,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:27:46,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:27:46,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:27:46,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:27:46,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:27:46,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:27:46,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 12:27:46,344 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:27:46,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:27:46,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:27:46,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:27:46,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:27:46,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:27:46,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:27:46,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:27:46,346 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:27:46,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:27:46,346 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:27:46,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:27:46,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:27:46,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:27:46,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:27:46,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:27:46,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:27:46,347 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:27:46,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:27:46,347 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:27:46,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:27:46,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:27:46,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:27:46,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:27:46,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:27:46,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:27:46,348 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5486e3f63bfe23a44d43a7bb73e094c79a86db839c48318d8de3614bb7e48420 [2022-12-13 12:27:46,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:27:46,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:27:46,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:27:46,531 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:27:46,531 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:27:46,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem07_label49.c [2022-12-13 12:27:49,211 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:27:50,232 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:27:50,233 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/sv-benchmarks/c/eca-rers2012/Problem07_label49.c [2022-12-13 12:27:50,365 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/data/266755783/8e8ef4997a774ac0a9362d93845d46bf/FLAG057fd03bd [2022-12-13 12:27:50,376 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/data/266755783/8e8ef4997a774ac0a9362d93845d46bf [2022-12-13 12:27:50,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:27:50,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:27:50,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:27:50,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:27:50,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:27:50,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:27:50" (1/1) ... [2022-12-13 12:27:50,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6404f904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:50, skipping insertion in model container [2022-12-13 12:27:50,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:27:50" (1/1) ... [2022-12-13 12:27:50,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:27:50,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:28:00,754 WARN L237 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_a643069d-4620-4224-bc78-86b83df082cd/sv-benchmarks/c/eca-rers2012/Problem07_label49.c[2771201,2771214] [2022-12-13 12:28:00,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:28:00,817 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:28:06,726 WARN L237 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_a643069d-4620-4224-bc78-86b83df082cd/sv-benchmarks/c/eca-rers2012/Problem07_label49.c[2771201,2771214] [2022-12-13 12:28:06,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:28:07,387 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:28:07,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07 WrapperNode [2022-12-13 12:28:07,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:28:07,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:28:07,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:28:07,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:28:07,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:07,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:09,126 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2022-12-13 12:28:09,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:28:09,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:28:09,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:28:09,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:28:09,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:09,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:09,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:09,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:10,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:10,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:10,344 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:10,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:10,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:28:10,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:28:10,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:28:10,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:28:10,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (1/1) ... [2022-12-13 12:28:10,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:28:10,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:28:10,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:28:10,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a643069d-4620-4224-bc78-86b83df082cd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:28:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:28:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:28:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:28:10,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:28:10,867 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:28:10,869 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:28:41,363 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:28:41,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:28:41,396 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 12:28:41,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:28:41 BoogieIcfgContainer [2022-12-13 12:28:41,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:28:41,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:28:41,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:28:41,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:28:41,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:27:50" (1/3) ... [2022-12-13 12:28:41,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3176a17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:28:41, skipping insertion in model container [2022-12-13 12:28:41,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:07" (2/3) ... [2022-12-13 12:28:41,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3176a17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:28:41, skipping insertion in model container [2022-12-13 12:28:41,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:28:41" (3/3) ... [2022-12-13 12:28:41,409 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label49.c [2022-12-13 12:28:41,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:28:41,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 12:28:41,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:28:41,547 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2aae2aad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:28:41,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 12:28:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:28:42,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10113 [2022-12-13 12:28:42,288 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:28:42,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:28:42,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:28:42,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:28:42,301 INFO L85 PathProgramCache]: Analyzing trace with hash -626776830, now seen corresponding path program 1 times [2022-12-13 12:28:42,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:28:42,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154782358] [2022-12-13 12:28:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:28:42,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:28:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:11,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:11,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154782358] [2022-12-13 12:29:11,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154782358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:11,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:11,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:29:11,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933361813] [2022-12-13 12:29:11,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:11,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:29:11,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:11,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:29:11,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:29:11,347 INFO L87 Difference]: Start difference. First operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3370.6666666666665) internal successors, (10112), 2 states have internal predecessors, (10112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:29:41,724 INFO L93 Difference]: Finished difference Result 30705 states and 61134 transitions. [2022-12-13 12:29:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:29:41,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3370.6666666666665) internal successors, (10112), 2 states have internal predecessors, (10112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10112 [2022-12-13 12:29:41,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:29:41,799 INFO L225 Difference]: With dead ends: 30705 [2022-12-13 12:29:41,800 INFO L226 Difference]: Without dead ends: 20384 [2022-12-13 12:29:41,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:29:41,814 INFO L413 NwaCegarLoop]: 3649 mSDtfsCounter, 913 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 32216 mSolverCounterSat, 10597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 3702 SdHoareTripleChecker+Invalid, 42813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10597 IncrementalHoareTripleChecker+Valid, 32216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-12-13 12:29:41,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 3702 Invalid, 42813 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10597 Valid, 32216 Invalid, 0 Unknown, 0 Unchecked, 29.8s Time] [2022-12-13 12:29:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20384 states. [2022-12-13 12:29:42,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20384. [2022-12-13 12:29:42,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20384 states, 20383 states have (on average 1.815434430652995) internal successors, (37004), 20383 states have internal predecessors, (37004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 37004 transitions. [2022-12-13 12:29:42,181 INFO L78 Accepts]: Start accepts. Automaton has 20384 states and 37004 transitions. Word has length 10112 [2022-12-13 12:29:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:29:42,191 INFO L495 AbstractCegarLoop]: Abstraction has 20384 states and 37004 transitions. [2022-12-13 12:29:42,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3370.6666666666665) internal successors, (10112), 2 states have internal predecessors, (10112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:42,193 INFO L276 IsEmpty]: Start isEmpty. Operand 20384 states and 37004 transitions. [2022-12-13 12:29:42,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10117 [2022-12-13 12:29:42,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:29:42,811 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:29:42,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:29:42,811 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:29:42,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:42,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2112617258, now seen corresponding path program 1 times [2022-12-13 12:29:42,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:42,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018240496] [2022-12-13 12:29:42,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:30:02,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:02,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018240496] [2022-12-13 12:30:02,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018240496] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:02,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:02,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:30:02,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967738628] [2022-12-13 12:30:02,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:02,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:30:02,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:02,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:30:02,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:30:02,879 INFO L87 Difference]: Start difference. First operand 20384 states and 37004 transitions. Second operand has 3 states, 3 states have (on average 3372.0) internal successors, (10116), 2 states have internal predecessors, (10116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:31,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:30:31,799 INFO L93 Difference]: Finished difference Result 61146 states and 111007 transitions. [2022-12-13 12:30:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:30:31,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3372.0) internal successors, (10116), 2 states have internal predecessors, (10116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10116 [2022-12-13 12:30:31,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:30:31,857 INFO L225 Difference]: With dead ends: 61146 [2022-12-13 12:30:31,858 INFO L226 Difference]: Without dead ends: 40764 [2022-12-13 12:30:31,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:30:31,873 INFO L413 NwaCegarLoop]: 4828 mSDtfsCounter, 13865 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28700 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13865 SdHoareTripleChecker+Valid, 4877 SdHoareTripleChecker+Invalid, 40458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 28700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:30:31,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13865 Valid, 4877 Invalid, 40458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 28700 Invalid, 0 Unknown, 0 Unchecked, 28.4s Time] [2022-12-13 12:30:31,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40764 states. [2022-12-13 12:30:32,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40764 to 40764. [2022-12-13 12:30:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40764 states, 40763 states have (on average 1.6229669062630327) internal successors, (66157), 40763 states have internal predecessors, (66157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 66157 transitions. [2022-12-13 12:30:32,306 INFO L78 Accepts]: Start accepts. Automaton has 40764 states and 66157 transitions. Word has length 10116 [2022-12-13 12:30:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:30:32,307 INFO L495 AbstractCegarLoop]: Abstraction has 40764 states and 66157 transitions. [2022-12-13 12:30:32,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3372.0) internal successors, (10116), 2 states have internal predecessors, (10116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 40764 states and 66157 transitions. [2022-12-13 12:30:32,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10118 [2022-12-13 12:30:32,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:30:32,894 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:32,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:30:32,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:30:32,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash -801426742, now seen corresponding path program 1 times [2022-12-13 12:30:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:32,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899380857] [2022-12-13 12:30:32,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:32,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:30:52,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:52,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899380857] [2022-12-13 12:30:52,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899380857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:52,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:52,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:30:52,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507290031] [2022-12-13 12:30:52,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:52,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:30:52,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:52,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:30:52,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:30:52,846 INFO L87 Difference]: Start difference. First operand 40764 states and 66157 transitions. Second operand has 3 states, 3 states have (on average 3372.3333333333335) internal successors, (10117), 2 states have internal predecessors, (10117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:20,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:31:20,047 INFO L93 Difference]: Finished difference Result 122286 states and 198466 transitions. [2022-12-13 12:31:20,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:31:20,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3372.3333333333335) internal successors, (10117), 2 states have internal predecessors, (10117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10117 [2022-12-13 12:31:20,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:31:20,131 INFO L225 Difference]: With dead ends: 122286 [2022-12-13 12:31:20,131 INFO L226 Difference]: Without dead ends: 81524 [2022-12-13 12:31:20,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:31:20,155 INFO L413 NwaCegarLoop]: 4823 mSDtfsCounter, 13686 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28825 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13686 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 40502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 28825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:31:20,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13686 Valid, 4872 Invalid, 40502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 28825 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2022-12-13 12:31:20,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81524 states. [2022-12-13 12:31:20,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81524 to 81524. [2022-12-13 12:31:20,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81524 states, 81523 states have (on average 1.4781472713222035) internal successors, (120503), 81523 states have internal predecessors, (120503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:20,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81524 states to 81524 states and 120503 transitions. [2022-12-13 12:31:20,917 INFO L78 Accepts]: Start accepts. Automaton has 81524 states and 120503 transitions. Word has length 10117 [2022-12-13 12:31:20,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:31:20,918 INFO L495 AbstractCegarLoop]: Abstraction has 81524 states and 120503 transitions. [2022-12-13 12:31:20,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3372.3333333333335) internal successors, (10117), 2 states have internal predecessors, (10117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 81524 states and 120503 transitions. [2022-12-13 12:31:21,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10124 [2022-12-13 12:31:21,545 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:31:21,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:31:21,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:31:21,548 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:31:21,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:21,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1991564755, now seen corresponding path program 1 times [2022-12-13 12:31:21,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:21,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165057756] [2022-12-13 12:31:21,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:21,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:31:41,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:41,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165057756] [2022-12-13 12:31:41,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165057756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:41,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:41,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:31:41,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146116182] [2022-12-13 12:31:41,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:41,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:31:41,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:41,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:31:41,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:31:41,608 INFO L87 Difference]: Start difference. First operand 81524 states and 120503 transitions. Second operand has 3 states, 3 states have (on average 3373.3333333333335) internal successors, (10120), 2 states have internal predecessors, (10120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:32:11,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:32:11,935 INFO L93 Difference]: Finished difference Result 244566 states and 361504 transitions. [2022-12-13 12:32:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:32:11,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3373.3333333333335) internal successors, (10120), 2 states have internal predecessors, (10120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10123 [2022-12-13 12:32:11,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:32:12,084 INFO L225 Difference]: With dead ends: 244566 [2022-12-13 12:32:12,084 INFO L226 Difference]: Without dead ends: 163044 [2022-12-13 12:32:12,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:32:12,117 INFO L413 NwaCegarLoop]: 8617 mSDtfsCounter, 11070 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31006 mSolverCounterSat, 11008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11070 SdHoareTripleChecker+Valid, 8666 SdHoareTripleChecker+Invalid, 42014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11008 IncrementalHoareTripleChecker+Valid, 31006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:32:12,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11070 Valid, 8666 Invalid, 42014 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11008 Valid, 31006 Invalid, 0 Unknown, 0 Unchecked, 29.4s Time] [2022-12-13 12:32:12,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163044 states. [2022-12-13 12:32:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163044 to 163044. [2022-12-13 12:32:13,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163044 states, 163043 states have (on average 1.3667253423943377) internal successors, (222835), 163043 states have internal predecessors, (222835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:32:13,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163044 states to 163044 states and 222835 transitions. [2022-12-13 12:32:13,523 INFO L78 Accepts]: Start accepts. Automaton has 163044 states and 222835 transitions. Word has length 10123 [2022-12-13 12:32:13,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:32:13,524 INFO L495 AbstractCegarLoop]: Abstraction has 163044 states and 222835 transitions. [2022-12-13 12:32:13,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3373.3333333333335) internal successors, (10120), 2 states have internal predecessors, (10120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:32:13,526 INFO L276 IsEmpty]: Start isEmpty. Operand 163044 states and 222835 transitions. [2022-12-13 12:32:14,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10134 [2022-12-13 12:32:14,474 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:32:14,477 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:32:14,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:32:14,477 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:32:14,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:14,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1050802338, now seen corresponding path program 1 times [2022-12-13 12:32:14,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:14,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673505021] [2022-12-13 12:32:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:14,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:32:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:32:44,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:32:44,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673505021] [2022-12-13 12:32:44,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673505021] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:32:44,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:32:44,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:32:44,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030088091] [2022-12-13 12:32:44,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:32:44,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:32:44,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:32:44,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:32:44,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:32:44,735 INFO L87 Difference]: Start difference. First operand 163044 states and 222835 transitions. Second operand has 3 states, 3 states have (on average 3377.6666666666665) internal successors, (10133), 2 states have internal predecessors, (10133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:33:12,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:12,542 INFO L93 Difference]: Finished difference Result 407606 states and 548036 transitions. [2022-12-13 12:33:12,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:33:12,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3377.6666666666665) internal successors, (10133), 2 states have internal predecessors, (10133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10133 [2022-12-13 12:33:12,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:12,812 INFO L225 Difference]: With dead ends: 407606 [2022-12-13 12:33:12,813 INFO L226 Difference]: Without dead ends: 244564 [2022-12-13 12:33:12,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:33:12,939 INFO L413 NwaCegarLoop]: 9643 mSDtfsCounter, 10411 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29399 mSolverCounterSat, 7489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10411 SdHoareTripleChecker+Valid, 9692 SdHoareTripleChecker+Invalid, 36888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7489 IncrementalHoareTripleChecker+Valid, 29399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:12,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10411 Valid, 9692 Invalid, 36888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7489 Valid, 29399 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2022-12-13 12:33:13,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244564 states. [2022-12-13 12:33:14,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244564 to 244564. [2022-12-13 12:33:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244564 states, 244563 states have (on average 1.2861348609560728) internal successors, (314541), 244563 states have internal predecessors, (314541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:33:15,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244564 states to 244564 states and 314541 transitions. [2022-12-13 12:33:15,270 INFO L78 Accepts]: Start accepts. Automaton has 244564 states and 314541 transitions. Word has length 10133 [2022-12-13 12:33:15,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:15,271 INFO L495 AbstractCegarLoop]: Abstraction has 244564 states and 314541 transitions. [2022-12-13 12:33:15,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3377.6666666666665) internal successors, (10133), 2 states have internal predecessors, (10133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:33:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 244564 states and 314541 transitions. [2022-12-13 12:33:16,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10150 [2022-12-13 12:33:16,147 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:16,149 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:16,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:33:16,149 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:33:16,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1752318342, now seen corresponding path program 1 times [2022-12-13 12:33:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:33:16,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445149217] [2022-12-13 12:33:16,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:16,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:33:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:39,307 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:39,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:33:39,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445149217] [2022-12-13 12:33:39,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445149217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:39,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:39,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:33:39,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821218716] [2022-12-13 12:33:39,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:39,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:33:39,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:33:39,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:33:39,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:33:39,323 INFO L87 Difference]: Start difference. First operand 244564 states and 314541 transitions. Second operand has 3 states, 3 states have (on average 3383.0) internal successors, (10149), 2 states have internal predecessors, (10149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:34:10,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:34:10,677 INFO L93 Difference]: Finished difference Result 733686 states and 943618 transitions. [2022-12-13 12:34:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:34:10,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3383.0) internal successors, (10149), 2 states have internal predecessors, (10149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10149 [2022-12-13 12:34:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:34:11,159 INFO L225 Difference]: With dead ends: 733686 [2022-12-13 12:34:11,159 INFO L226 Difference]: Without dead ends: 489124 [2022-12-13 12:34:11,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:34:11,239 INFO L413 NwaCegarLoop]: 5700 mSDtfsCounter, 13739 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27430 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13739 SdHoareTripleChecker+Valid, 5749 SdHoareTripleChecker+Invalid, 40460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:34:11,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13739 Valid, 5749 Invalid, 40460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27430 Invalid, 0 Unknown, 0 Unchecked, 29.1s Time] [2022-12-13 12:34:11,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489124 states. [2022-12-13 12:34:15,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489124 to 489124. [2022-12-13 12:34:15,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489124 states, 489123 states have (on average 1.2033353573640986) internal successors, (588579), 489123 states have internal predecessors, (588579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:34:16,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489124 states to 489124 states and 588579 transitions. [2022-12-13 12:34:16,209 INFO L78 Accepts]: Start accepts. Automaton has 489124 states and 588579 transitions. Word has length 10149 [2022-12-13 12:34:16,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:34:16,210 INFO L495 AbstractCegarLoop]: Abstraction has 489124 states and 588579 transitions. [2022-12-13 12:34:16,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3383.0) internal successors, (10149), 2 states have internal predecessors, (10149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:34:16,211 INFO L276 IsEmpty]: Start isEmpty. Operand 489124 states and 588579 transitions. [2022-12-13 12:34:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10253 [2022-12-13 12:34:17,330 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:34:17,334 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:34:17,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:34:17,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:34:17,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:34:17,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1421678422, now seen corresponding path program 1 times [2022-12-13 12:34:17,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:34:17,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952255364] [2022-12-13 12:34:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:34:17,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:34:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:34:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:34:38,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:34:38,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952255364] [2022-12-13 12:34:38,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952255364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:34:38,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:34:38,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:34:38,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047322098] [2022-12-13 12:34:38,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:34:38,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:34:38,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:34:38,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:34:38,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:34:38,301 INFO L87 Difference]: Start difference. First operand 489124 states and 588579 transitions. Second operand has 3 states, 3 states have (on average 3417.3333333333335) internal successors, (10252), 2 states have internal predecessors, (10252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:35:14,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:35:14,786 INFO L93 Difference]: Finished difference Result 1467366 states and 1765732 transitions. [2022-12-13 12:35:14,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:35:14,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3417.3333333333335) internal successors, (10252), 2 states have internal predecessors, (10252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10252 [2022-12-13 12:35:14,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:35:15,906 INFO L225 Difference]: With dead ends: 1467366 [2022-12-13 12:35:15,907 INFO L226 Difference]: Without dead ends: 978244 [2022-12-13 12:35:16,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:35:16,082 INFO L413 NwaCegarLoop]: 7703 mSDtfsCounter, 11600 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31179 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11600 SdHoareTripleChecker+Valid, 7752 SdHoareTripleChecker+Invalid, 41680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 31179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:35:16,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11600 Valid, 7752 Invalid, 41680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 31179 Invalid, 0 Unknown, 0 Unchecked, 32.4s Time] [2022-12-13 12:35:16,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978244 states. [2022-12-13 12:35:24,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978244 to 978244. [2022-12-13 12:35:24,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978244 states, 978243 states have (on average 1.154575090238315) internal successors, (1129455), 978243 states have internal predecessors, (1129455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:35:26,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978244 states to 978244 states and 1129455 transitions. [2022-12-13 12:35:26,075 INFO L78 Accepts]: Start accepts. Automaton has 978244 states and 1129455 transitions. Word has length 10252 [2022-12-13 12:35:26,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:35:26,075 INFO L495 AbstractCegarLoop]: Abstraction has 978244 states and 1129455 transitions. [2022-12-13 12:35:26,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3417.3333333333335) internal successors, (10252), 2 states have internal predecessors, (10252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:35:26,077 INFO L276 IsEmpty]: Start isEmpty. Operand 978244 states and 1129455 transitions. [2022-12-13 12:35:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10558 [2022-12-13 12:35:27,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:35:27,888 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:35:27,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:35:27,888 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:35:27,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:35:27,890 INFO L85 PathProgramCache]: Analyzing trace with hash 86312013, now seen corresponding path program 1 times [2022-12-13 12:35:27,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:35:27,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491025630] [2022-12-13 12:35:27,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:35:27,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:35:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:35:52,010 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-12-13 12:35:52,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:35:52,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491025630] [2022-12-13 12:35:52,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491025630] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:35:52,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:35:52,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:35:52,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436863241] [2022-12-13 12:35:52,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:35:52,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:35:52,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:35:52,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:35:52,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:35:52,021 INFO L87 Difference]: Start difference. First operand 978244 states and 1129455 transitions. Second operand has 3 states, 3 states have (on average 3467.0) internal successors, (10401), 2 states have internal predecessors, (10401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:36:28,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:28,712 INFO L93 Difference]: Finished difference Result 2445606 states and 2808118 transitions. [2022-12-13 12:36:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:36:28,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3467.0) internal successors, (10401), 2 states have internal predecessors, (10401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10557 [2022-12-13 12:36:28,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:36:30,452 INFO L225 Difference]: With dead ends: 2445606 [2022-12-13 12:36:30,452 INFO L226 Difference]: Without dead ends: 1467364 [2022-12-13 12:36:30,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:36:30,707 INFO L413 NwaCegarLoop]: 5131 mSDtfsCounter, 10928 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30114 mSolverCounterSat, 10732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10928 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 40846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10732 IncrementalHoareTripleChecker+Valid, 30114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:36:30,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10928 Valid, 5180 Invalid, 40846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10732 Valid, 30114 Invalid, 0 Unknown, 0 Unchecked, 30.0s Time] [2022-12-13 12:36:31,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467364 states. [2022-12-13 12:36:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467364 to 1467364. [2022-12-13 12:36:44,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467364 states, 1467363 states have (on average 1.099439606968419) internal successors, (1613277), 1467363 states have internal predecessors, (1613277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:36:46,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467364 states to 1467364 states and 1613277 transitions. [2022-12-13 12:36:46,826 INFO L78 Accepts]: Start accepts. Automaton has 1467364 states and 1613277 transitions. Word has length 10557 [2022-12-13 12:36:46,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:36:46,827 INFO L495 AbstractCegarLoop]: Abstraction has 1467364 states and 1613277 transitions. [2022-12-13 12:36:46,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3467.0) internal successors, (10401), 2 states have internal predecessors, (10401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:36:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1467364 states and 1613277 transitions. [2022-12-13 12:36:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10559 [2022-12-13 12:36:49,271 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:36:49,273 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:36:49,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:36:49,273 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:36:49,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:49,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1698404386, now seen corresponding path program 1 times [2022-12-13 12:36:49,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:49,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196857724] [2022-12-13 12:36:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:49,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:19,080 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 12:37:19,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:19,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196857724] [2022-12-13 12:37:19,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196857724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:19,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:19,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:37:19,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813986265] [2022-12-13 12:37:19,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:19,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:37:19,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:19,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:37:19,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:37:19,098 INFO L87 Difference]: Start difference. First operand 1467364 states and 1613277 transitions. Second operand has 3 states, 3 states have (on average 3512.6666666666665) internal successors, (10538), 2 states have internal predecessors, (10538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)