./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/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_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/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_38580e67-626c-44e1-8e29-e6a64c48c4da/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 219fae8b2e03d20bcb768458013f321b0dd264dfdc5412ade22b395f9d4baa67 --- 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 21:53:43,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:53:43,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:53:43,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:53:43,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:53:43,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:53:43,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:53:43,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:53:43,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:53:43,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:53:43,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:53:43,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:53:43,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:53:43,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:53:43,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:53:43,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:53:43,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:53:43,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:53:43,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:53:43,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:53:43,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:53:43,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:53:43,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:53:43,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:53:43,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:53:43,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:53:43,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:53:43,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:53:43,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:53:43,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:53:43,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:53:43,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:53:43,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:53:43,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:53:43,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:53:43,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:53:43,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:53:43,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:53:43,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:53:43,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:53:43,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:53:43,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:53:43,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:53:43,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:53:43,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:53:43,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:53:43,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:53:43,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:53:43,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:53:43,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:53:43,488 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:53:43,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:53:43,489 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:53:43,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:53:43,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:53:43,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:53:43,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:53:43,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:53:43,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:53:43,490 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:53:43,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:53:43,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:53:43,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:53:43,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:53:43,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:53:43,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:53:43,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:53:43,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:53:43,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:53:43,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:53:43,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:53:43,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:53:43,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:53:43,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:53:43,493 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:53:43,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:53:43,493 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:53:43,493 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_38580e67-626c-44e1-8e29-e6a64c48c4da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 219fae8b2e03d20bcb768458013f321b0dd264dfdc5412ade22b395f9d4baa67 [2022-12-13 21:53:43,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:53:43,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:53:43,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:53:43,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:53:43,713 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:53:43,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c [2022-12-13 21:53:46,396 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:53:46,756 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:53:46,756 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c [2022-12-13 21:53:46,780 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/data/bc7c8a6c2/c0f54b7521cd499b9b0e0c29c45a9c70/FLAGc94b2cb22 [2022-12-13 21:53:46,791 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/data/bc7c8a6c2/c0f54b7521cd499b9b0e0c29c45a9c70 [2022-12-13 21:53:46,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:53:46,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:53:46,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:53:46,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:53:46,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:53:46,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:53:46" (1/1) ... [2022-12-13 21:53:46,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a033c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:46, skipping insertion in model container [2022-12-13 21:53:46,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:53:46" (1/1) ... [2022-12-13 21:53:46,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:53:46,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:53:47,146 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_38580e67-626c-44e1-8e29-e6a64c48c4da/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c[26888,26901] [2022-12-13 21:53:47,182 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_38580e67-626c-44e1-8e29-e6a64c48c4da/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c[30395,30408] [2022-12-13 21:53:47,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:53:47,828 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:53:47,867 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_38580e67-626c-44e1-8e29-e6a64c48c4da/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c[26888,26901] [2022-12-13 21:53:47,874 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_38580e67-626c-44e1-8e29-e6a64c48c4da/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c[30395,30408] [2022-12-13 21:53:48,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:53:48,295 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:53:48,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48 WrapperNode [2022-12-13 21:53:48,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:53:48,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:53:48,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:53:48,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:53:48,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,598 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5247 [2022-12-13 21:53:48,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:53:48,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:53:48,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:53:48,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:53:48,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,891 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:53:48,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:53:48,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:53:48,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:53:48,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:53:48,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:48,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:48,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38580e67-626c-44e1-8e29-e6a64c48c4da/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:53:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:53:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:53:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:53:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:53:49,146 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:53:49,148 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:53:52,728 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:53:52,742 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:53:52,743 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:53:52,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:53:52 BoogieIcfgContainer [2022-12-13 21:53:52,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:53:52,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:53:52,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:53:52,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:53:52,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:53:46" (1/3) ... [2022-12-13 21:53:52,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b047775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:53:52, skipping insertion in model container [2022-12-13 21:53:52,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (2/3) ... [2022-12-13 21:53:52,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b047775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:53:52, skipping insertion in model container [2022-12-13 21:53:52,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:53:52" (3/3) ... [2022-12-13 21:53:52,754 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c [2022-12-13 21:53:52,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:53:52,773 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 21:53:52,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:53:52,845 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;@45d7d45, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:53:52,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 21:53:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 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 21:53:52,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 21:53:52,861 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:52,861 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] [2022-12-13 21:53:52,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:52,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:52,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1967767115, now seen corresponding path program 1 times [2022-12-13 21:53:52,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:52,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079925357] [2022-12-13 21:53:52,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:52,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:53,105 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 21:53:53,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:53,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079925357] [2022-12-13 21:53:53,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079925357] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:53,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:53,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:53:53,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418092659] [2022-12-13 21:53:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:53,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:53:53,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:53,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:53:53,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:53:53,144 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 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 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 21:53:53,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:53,206 INFO L93 Difference]: Finished difference Result 1829 states and 3468 transitions. [2022-12-13 21:53:53,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:53:53,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2022-12-13 21:53:53,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:53:53,222 INFO L225 Difference]: With dead ends: 1829 [2022-12-13 21:53:53,222 INFO L226 Difference]: Without dead ends: 883 [2022-12-13 21:53:53,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:53:53,230 INFO L413 NwaCegarLoop]: 1731 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:53:53,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:53:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-12-13 21:53:53,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2022-12-13 21:53:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8921679909194098) internal successors, (1667), 882 states have internal predecessors, (1667), 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 21:53:53,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1667 transitions. [2022-12-13 21:53:53,292 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1667 transitions. Word has length 30 [2022-12-13 21:53:53,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:53:53,292 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1667 transitions. [2022-12-13 21:53:53,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 21:53:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1667 transitions. [2022-12-13 21:53:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 21:53:53,294 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:53,294 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] [2022-12-13 21:53:53,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:53:53,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:53,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:53,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2101780621, now seen corresponding path program 1 times [2022-12-13 21:53:53,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:53,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615757963] [2022-12-13 21:53:53,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:53,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:53,450 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 21:53:53,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:53,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615757963] [2022-12-13 21:53:53,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615757963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:53,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:53,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:53:53,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001796596] [2022-12-13 21:53:53,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:53,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:53:53,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:53,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:53:53,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:53:53,453 INFO L87 Difference]: Start difference. First operand 883 states and 1667 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 21:53:53,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:53,580 INFO L93 Difference]: Finished difference Result 949 states and 1771 transitions. [2022-12-13 21:53:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:53:53,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2022-12-13 21:53:53,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:53:53,586 INFO L225 Difference]: With dead ends: 949 [2022-12-13 21:53:53,587 INFO L226 Difference]: Without dead ends: 883 [2022-12-13 21:53:53,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:53:53,589 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 3 mSDsluCounter, 4931 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6596 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:53:53,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6596 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:53:53,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-12-13 21:53:53,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2022-12-13 21:53:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8229284903518728) internal successors, (1606), 882 states have internal predecessors, (1606), 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 21:53:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1606 transitions. [2022-12-13 21:53:53,614 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1606 transitions. Word has length 30 [2022-12-13 21:53:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:53:53,614 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1606 transitions. [2022-12-13 21:53:53,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 21:53:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1606 transitions. [2022-12-13 21:53:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 21:53:53,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:53,616 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] [2022-12-13 21:53:53,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:53:53,616 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:53,617 INFO L85 PathProgramCache]: Analyzing trace with hash -829623699, now seen corresponding path program 1 times [2022-12-13 21:53:53,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:53,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302638477] [2022-12-13 21:53:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:53,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:53,683 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 21:53:53,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:53,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302638477] [2022-12-13 21:53:53,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302638477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:53,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:53,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:53:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178560527] [2022-12-13 21:53:53,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:53,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:53:53,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:53,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:53:53,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:53:53,686 INFO L87 Difference]: Start difference. First operand 883 states and 1606 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 21:53:56,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:56,745 INFO L93 Difference]: Finished difference Result 2387 states and 4479 transitions. [2022-12-13 21:53:56,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:53:56,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2022-12-13 21:53:56,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:53:56,750 INFO L225 Difference]: With dead ends: 2387 [2022-12-13 21:53:56,750 INFO L226 Difference]: Without dead ends: 1634 [2022-12-13 21:53:56,751 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 21:53:56,751 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 930 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 3144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:53:56,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 253 Invalid, 3144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 21:53:56,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-12-13 21:53:56,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2022-12-13 21:53:56,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.8229166666666667) internal successors, (2975), 1633 states have internal predecessors, (2975), 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 21:53:56,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2975 transitions. [2022-12-13 21:53:56,790 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2975 transitions. Word has length 30 [2022-12-13 21:53:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:53:56,791 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 2975 transitions. [2022-12-13 21:53:56,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 21:53:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2975 transitions. [2022-12-13 21:53:56,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-13 21:53:56,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:56,794 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] [2022-12-13 21:53:56,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:53:56,794 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:56,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:56,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1651582301, now seen corresponding path program 1 times [2022-12-13 21:53:56,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:56,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536499676] [2022-12-13 21:53:56,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:56,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:57,105 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 21:53:57,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:57,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536499676] [2022-12-13 21:53:57,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536499676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:57,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:57,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:53:57,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886653358] [2022-12-13 21:53:57,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:57,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:53:57,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:57,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:53:57,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:53:57,108 INFO L87 Difference]: Start difference. First operand 1634 states and 2975 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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 21:53:57,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:57,595 INFO L93 Difference]: Finished difference Result 2626 states and 4575 transitions. [2022-12-13 21:53:57,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 21:53:57,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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 90 [2022-12-13 21:53:57,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:53:57,606 INFO L225 Difference]: With dead ends: 2626 [2022-12-13 21:53:57,606 INFO L226 Difference]: Without dead ends: 2564 [2022-12-13 21:53:57,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-12-13 21:53:57,608 INFO L413 NwaCegarLoop]: 1600 mSDtfsCounter, 13578 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13578 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:53:57,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13578 Valid, 5575 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:53:57,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2022-12-13 21:53:57,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1694. [2022-12-13 21:53:57,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1692 states have (on average 1.8156028368794326) internal successors, (3072), 1693 states have internal predecessors, (3072), 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 21:53:57,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 3072 transitions. [2022-12-13 21:53:57,668 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 3072 transitions. Word has length 90 [2022-12-13 21:53:57,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:53:57,669 INFO L495 AbstractCegarLoop]: Abstraction has 1694 states and 3072 transitions. [2022-12-13 21:53:57,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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 21:53:57,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 3072 transitions. [2022-12-13 21:53:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 21:53:57,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:57,671 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] [2022-12-13 21:53:57,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:53:57,672 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:57,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:57,672 INFO L85 PathProgramCache]: Analyzing trace with hash 551619955, now seen corresponding path program 1 times [2022-12-13 21:53:57,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:57,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952055044] [2022-12-13 21:53:57,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:57,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:57,793 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 21:53:57,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:57,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952055044] [2022-12-13 21:53:57,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952055044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:57,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:57,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:53:57,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607143835] [2022-12-13 21:53:57,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:57,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:53:57,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:57,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:53:57,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:53:57,795 INFO L87 Difference]: Start difference. First operand 1694 states and 3072 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 21:53:57,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:57,843 INFO L93 Difference]: Finished difference Result 1927 states and 3447 transitions. [2022-12-13 21:53:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:53:57,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2022-12-13 21:53:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:53:57,848 INFO L225 Difference]: With dead ends: 1927 [2022-12-13 21:53:57,848 INFO L226 Difference]: Without dead ends: 1805 [2022-12-13 21:53:57,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:53:57,849 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:53:57,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:53:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2022-12-13 21:53:57,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1801. [2022-12-13 21:53:57,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1799 states have (on average 1.802112284602557) internal successors, (3242), 1800 states have internal predecessors, (3242), 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 21:53:57,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 3242 transitions. [2022-12-13 21:53:57,917 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 3242 transitions. Word has length 92 [2022-12-13 21:53:57,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:53:57,918 INFO L495 AbstractCegarLoop]: Abstraction has 1801 states and 3242 transitions. [2022-12-13 21:53:57,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 21:53:57,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 3242 transitions. [2022-12-13 21:53:57,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 21:53:57,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:57,920 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] [2022-12-13 21:53:57,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:53:57,920 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:57,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:57,920 INFO L85 PathProgramCache]: Analyzing trace with hash 618113467, now seen corresponding path program 1 times [2022-12-13 21:53:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:57,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362466670] [2022-12-13 21:53:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:57,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:58,396 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 21:53:58,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:58,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362466670] [2022-12-13 21:53:58,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362466670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:58,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:58,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:53:58,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999502899] [2022-12-13 21:53:58,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:58,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:53:58,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:58,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:53:58,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:53:58,398 INFO L87 Difference]: Start difference. First operand 1801 states and 3242 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 21:53:58,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:58,811 INFO L93 Difference]: Finished difference Result 2032 states and 3610 transitions. [2022-12-13 21:53:58,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:53:58,812 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-12-13 21:53:58,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:53:58,819 INFO L225 Difference]: With dead ends: 2032 [2022-12-13 21:53:58,819 INFO L226 Difference]: Without dead ends: 1803 [2022-12-13 21:53:58,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:53:58,821 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 9138 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9138 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:53:58,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9138 Valid, 2281 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:53:58,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2022-12-13 21:53:58,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1801. [2022-12-13 21:53:58,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1799 states have (on average 1.8010005558643691) internal successors, (3240), 1800 states have internal predecessors, (3240), 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 21:53:58,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 3240 transitions. [2022-12-13 21:53:58,897 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 3240 transitions. Word has length 92 [2022-12-13 21:53:58,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:53:58,898 INFO L495 AbstractCegarLoop]: Abstraction has 1801 states and 3240 transitions. [2022-12-13 21:53:58,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 21:53:58,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 3240 transitions. [2022-12-13 21:53:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-13 21:53:58,900 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:58,900 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] [2022-12-13 21:53:58,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 21:53:58,901 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:58,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:58,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1566925479, now seen corresponding path program 1 times [2022-12-13 21:53:58,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:58,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869718476] [2022-12-13 21:53:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:58,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:59,234 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 21:53:59,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:59,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869718476] [2022-12-13 21:53:59,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869718476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:59,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:59,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:53:59,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554592045] [2022-12-13 21:53:59,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:59,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:53:59,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:59,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:53:59,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:53:59,237 INFO L87 Difference]: Start difference. First operand 1801 states and 3240 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 21:53:59,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:59,341 INFO L93 Difference]: Finished difference Result 2026 states and 3594 transitions. [2022-12-13 21:53:59,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:53:59,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 93 [2022-12-13 21:53:59,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:53:59,346 INFO L225 Difference]: With dead ends: 2026 [2022-12-13 21:53:59,346 INFO L226 Difference]: Without dead ends: 2024 [2022-12-13 21:53:59,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:53:59,347 INFO L413 NwaCegarLoop]: 1696 mSDtfsCounter, 271 mSDsluCounter, 4820 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:53:59,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 6516 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:53:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2022-12-13 21:53:59,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 1807. [2022-12-13 21:53:59,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1805 states have (on average 1.7977839335180055) internal successors, (3245), 1806 states have internal predecessors, (3245), 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 21:53:59,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 3245 transitions. [2022-12-13 21:53:59,389 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 3245 transitions. Word has length 93 [2022-12-13 21:53:59,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:53:59,390 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 3245 transitions. [2022-12-13 21:53:59,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 21:53:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 3245 transitions. [2022-12-13 21:53:59,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:53:59,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:59,391 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] [2022-12-13 21:53:59,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:53:59,391 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:59,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:59,391 INFO L85 PathProgramCache]: Analyzing trace with hash -401487589, now seen corresponding path program 1 times [2022-12-13 21:53:59,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:59,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727568439] [2022-12-13 21:53:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:59,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:59,446 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 21:53:59,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:59,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727568439] [2022-12-13 21:53:59,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727568439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:59,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:59,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:53:59,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351808264] [2022-12-13 21:53:59,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:59,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:53:59,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:59,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:53:59,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:53:59,448 INFO L87 Difference]: Start difference. First operand 1807 states and 3245 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:53:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:59,538 INFO L93 Difference]: Finished difference Result 2261 states and 3957 transitions. [2022-12-13 21:53:59,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:53:59,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2022-12-13 21:53:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:53:59,552 INFO L225 Difference]: With dead ends: 2261 [2022-12-13 21:53:59,552 INFO L226 Difference]: Without dead ends: 2026 [2022-12-13 21:53:59,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:53:59,554 INFO L413 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:53:59,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:53:59,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2022-12-13 21:53:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2024. [2022-12-13 21:53:59,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2024 states, 2022 states have (on average 1.771513353115727) internal successors, (3582), 2023 states have internal predecessors, (3582), 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 21:53:59,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 3582 transitions. [2022-12-13 21:53:59,661 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 3582 transitions. Word has length 94 [2022-12-13 21:53:59,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:53:59,662 INFO L495 AbstractCegarLoop]: Abstraction has 2024 states and 3582 transitions. [2022-12-13 21:53:59,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:53:59,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 3582 transitions. [2022-12-13 21:53:59,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:53:59,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:59,664 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] [2022-12-13 21:53:59,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 21:53:59,664 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:59,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:59,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1540581915, now seen corresponding path program 1 times [2022-12-13 21:53:59,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:59,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484287499] [2022-12-13 21:53:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:59,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:59,760 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 21:53:59,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:59,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484287499] [2022-12-13 21:53:59,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484287499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:59,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:59,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:53:59,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500477296] [2022-12-13 21:53:59,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:59,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:53:59,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:59,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:53:59,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:53:59,762 INFO L87 Difference]: Start difference. First operand 2024 states and 3582 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:53:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:59,862 INFO L93 Difference]: Finished difference Result 2896 states and 4940 transitions. [2022-12-13 21:53:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:53:59,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2022-12-13 21:53:59,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:53:59,868 INFO L225 Difference]: With dead ends: 2896 [2022-12-13 21:53:59,868 INFO L226 Difference]: Without dead ends: 2444 [2022-12-13 21:53:59,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:53:59,870 INFO L413 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:53:59,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:53:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2022-12-13 21:53:59,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2442. [2022-12-13 21:53:59,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 2440 states have (on average 1.7311475409836066) internal successors, (4224), 2441 states have internal predecessors, (4224), 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 21:53:59,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 4224 transitions. [2022-12-13 21:53:59,969 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 4224 transitions. Word has length 94 [2022-12-13 21:53:59,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:53:59,969 INFO L495 AbstractCegarLoop]: Abstraction has 2442 states and 4224 transitions. [2022-12-13 21:53:59,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:53:59,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 4224 transitions. [2022-12-13 21:53:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:53:59,970 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:53:59,970 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] [2022-12-13 21:53:59,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 21:53:59,971 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:53:59,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:59,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1967352859, now seen corresponding path program 1 times [2022-12-13 21:53:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:59,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799770779] [2022-12-13 21:53:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:59,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:00,027 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 21:54:00,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:00,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799770779] [2022-12-13 21:54:00,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799770779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:00,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:00,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:54:00,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213419134] [2022-12-13 21:54:00,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:00,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:54:00,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:00,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:54:00,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:00,029 INFO L87 Difference]: Start difference. First operand 2442 states and 4224 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:00,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:54:00,226 INFO L93 Difference]: Finished difference Result 4118 states and 6810 transitions. [2022-12-13 21:54:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:54:00,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2022-12-13 21:54:00,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:54:00,238 INFO L225 Difference]: With dead ends: 4118 [2022-12-13 21:54:00,238 INFO L226 Difference]: Without dead ends: 3248 [2022-12-13 21:54:00,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:00,240 INFO L413 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:54:00,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:54:00,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2022-12-13 21:54:00,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3246. [2022-12-13 21:54:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3244 states have (on average 1.6781750924784218) internal successors, (5444), 3245 states have internal predecessors, (5444), 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 21:54:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 5444 transitions. [2022-12-13 21:54:00,423 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 5444 transitions. Word has length 94 [2022-12-13 21:54:00,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:54:00,423 INFO L495 AbstractCegarLoop]: Abstraction has 3246 states and 5444 transitions. [2022-12-13 21:54:00,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 5444 transitions. [2022-12-13 21:54:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:54:00,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:54:00,424 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] [2022-12-13 21:54:00,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 21:54:00,424 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:54:00,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:00,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1089352421, now seen corresponding path program 1 times [2022-12-13 21:54:00,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:00,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537614283] [2022-12-13 21:54:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:00,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:00,473 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 21:54:00,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:00,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537614283] [2022-12-13 21:54:00,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537614283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:00,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:00,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:54:00,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821914045] [2022-12-13 21:54:00,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:00,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:54:00,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:00,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:54:00,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:00,475 INFO L87 Difference]: Start difference. First operand 3246 states and 5444 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:00,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:54:00,785 INFO L93 Difference]: Finished difference Result 6466 states and 10358 transitions. [2022-12-13 21:54:00,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:54:00,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2022-12-13 21:54:00,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:54:00,796 INFO L225 Difference]: With dead ends: 6466 [2022-12-13 21:54:00,796 INFO L226 Difference]: Without dead ends: 4792 [2022-12-13 21:54:00,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:00,799 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:54:00,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:54:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2022-12-13 21:54:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 4790. [2022-12-13 21:54:01,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4790 states, 4788 states have (on average 1.6198830409356726) internal successors, (7756), 4789 states have internal predecessors, (7756), 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 21:54:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4790 states to 4790 states and 7756 transitions. [2022-12-13 21:54:01,171 INFO L78 Accepts]: Start accepts. Automaton has 4790 states and 7756 transitions. Word has length 94 [2022-12-13 21:54:01,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:54:01,171 INFO L495 AbstractCegarLoop]: Abstraction has 4790 states and 7756 transitions. [2022-12-13 21:54:01,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:01,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4790 states and 7756 transitions. [2022-12-13 21:54:01,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:54:01,172 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:54:01,172 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] [2022-12-13 21:54:01,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 21:54:01,173 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:54:01,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:01,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1523888357, now seen corresponding path program 1 times [2022-12-13 21:54:01,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:01,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813417369] [2022-12-13 21:54:01,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:01,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:01,227 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 21:54:01,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:01,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813417369] [2022-12-13 21:54:01,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813417369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:01,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:01,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:54:01,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066970801] [2022-12-13 21:54:01,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:01,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:54:01,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:01,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:54:01,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:01,229 INFO L87 Difference]: Start difference. First operand 4790 states and 7756 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:54:01,756 INFO L93 Difference]: Finished difference Result 10970 states and 17070 transitions. [2022-12-13 21:54:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:54:01,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2022-12-13 21:54:01,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:54:01,773 INFO L225 Difference]: With dead ends: 10970 [2022-12-13 21:54:01,773 INFO L226 Difference]: Without dead ends: 7752 [2022-12-13 21:54:01,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:01,777 INFO L413 NwaCegarLoop]: 1655 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:54:01,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1784 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:54:01,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7752 states. [2022-12-13 21:54:02,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7752 to 7750. [2022-12-13 21:54:02,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7750 states, 7748 states have (on average 1.5647909137842024) internal successors, (12124), 7749 states have internal predecessors, (12124), 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 21:54:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7750 states to 7750 states and 12124 transitions. [2022-12-13 21:54:02,350 INFO L78 Accepts]: Start accepts. Automaton has 7750 states and 12124 transitions. Word has length 94 [2022-12-13 21:54:02,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:54:02,350 INFO L495 AbstractCegarLoop]: Abstraction has 7750 states and 12124 transitions. [2022-12-13 21:54:02,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 7750 states and 12124 transitions. [2022-12-13 21:54:02,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:54:02,352 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:54:02,352 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] [2022-12-13 21:54:02,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 21:54:02,352 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:54:02,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:02,352 INFO L85 PathProgramCache]: Analyzing trace with hash 990146075, now seen corresponding path program 1 times [2022-12-13 21:54:02,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:02,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113415481] [2022-12-13 21:54:02,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:02,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:02,406 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 21:54:02,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:02,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113415481] [2022-12-13 21:54:02,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113415481] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:02,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:02,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:54:02,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221931438] [2022-12-13 21:54:02,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:02,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:54:02,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:02,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:54:02,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:02,408 INFO L87 Difference]: Start difference. First operand 7750 states and 12124 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:03,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:54:03,506 INFO L93 Difference]: Finished difference Result 19594 states and 29726 transitions. [2022-12-13 21:54:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:54:03,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2022-12-13 21:54:03,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:54:03,525 INFO L225 Difference]: With dead ends: 19594 [2022-12-13 21:54:03,525 INFO L226 Difference]: Without dead ends: 13416 [2022-12-13 21:54:03,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:03,532 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:54:03,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:54:03,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13416 states. [2022-12-13 21:54:04,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13416 to 13414. [2022-12-13 21:54:04,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13414 states, 13412 states have (on average 1.517148821950492) internal successors, (20348), 13413 states have internal predecessors, (20348), 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 21:54:04,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13414 states to 13414 states and 20348 transitions. [2022-12-13 21:54:04,736 INFO L78 Accepts]: Start accepts. Automaton has 13414 states and 20348 transitions. Word has length 94 [2022-12-13 21:54:04,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:54:04,737 INFO L495 AbstractCegarLoop]: Abstraction has 13414 states and 20348 transitions. [2022-12-13 21:54:04,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:04,737 INFO L276 IsEmpty]: Start isEmpty. Operand 13414 states and 20348 transitions. [2022-12-13 21:54:04,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:54:04,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:54:04,737 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] [2022-12-13 21:54:04,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 21:54:04,738 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:54:04,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:04,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1703496475, now seen corresponding path program 1 times [2022-12-13 21:54:04,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:04,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065242055] [2022-12-13 21:54:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:04,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:04,784 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 21:54:04,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:04,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065242055] [2022-12-13 21:54:04,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065242055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:04,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:04,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:54:04,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953288643] [2022-12-13 21:54:04,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:04,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:54:04,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:04,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:54:04,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:04,786 INFO L87 Difference]: Start difference. First operand 13414 states and 20348 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:07,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:54:07,088 INFO L93 Difference]: Finished difference Result 36074 states and 53502 transitions. [2022-12-13 21:54:07,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:54:07,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2022-12-13 21:54:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:54:07,117 INFO L225 Difference]: With dead ends: 36074 [2022-12-13 21:54:07,117 INFO L226 Difference]: Without dead ends: 24232 [2022-12-13 21:54:07,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:07,126 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:54:07,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:54:07,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24232 states. [2022-12-13 21:54:09,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24232 to 24230. [2022-12-13 21:54:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24230 states, 24228 states have (on average 1.4764735017335315) internal successors, (35772), 24229 states have internal predecessors, (35772), 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 21:54:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24230 states to 24230 states and 35772 transitions. [2022-12-13 21:54:09,433 INFO L78 Accepts]: Start accepts. Automaton has 24230 states and 35772 transitions. Word has length 94 [2022-12-13 21:54:09,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:54:09,434 INFO L495 AbstractCegarLoop]: Abstraction has 24230 states and 35772 transitions. [2022-12-13 21:54:09,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 21:54:09,434 INFO L276 IsEmpty]: Start isEmpty. Operand 24230 states and 35772 transitions. [2022-12-13 21:54:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-13 21:54:09,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:54:09,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:09,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 21:54:09,435 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:54:09,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:09,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1603193205, now seen corresponding path program 1 times [2022-12-13 21:54:09,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:09,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476944238] [2022-12-13 21:54:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:09,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:54:09,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:09,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476944238] [2022-12-13 21:54:09,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476944238] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:09,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:09,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:54:09,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345576762] [2022-12-13 21:54:09,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:09,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:54:09,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:09,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:54:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:54:09,576 INFO L87 Difference]: Start difference. First operand 24230 states and 35772 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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 21:54:17,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:54:17,026 INFO L93 Difference]: Finished difference Result 27995 states and 42760 transitions. [2022-12-13 21:54:17,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:54:17,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2022-12-13 21:54:17,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:54:17,051 INFO L225 Difference]: With dead ends: 27995 [2022-12-13 21:54:17,051 INFO L226 Difference]: Without dead ends: 26491 [2022-12-13 21:54:17,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:54:17,055 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 2645 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 3612 mSolverCounterSat, 1529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 5141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1529 IncrementalHoareTripleChecker+Valid, 3612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:54:17,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2645 Valid, 364 Invalid, 5141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1529 Valid, 3612 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-13 21:54:17,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26491 states. [2022-12-13 21:54:19,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26491 to 26483. [2022-12-13 21:54:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26483 states, 26481 states have (on average 1.472678524224916) internal successors, (38998), 26482 states have internal predecessors, (38998), 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 21:54:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26483 states to 26483 states and 38998 transitions. [2022-12-13 21:54:19,872 INFO L78 Accepts]: Start accepts. Automaton has 26483 states and 38998 transitions. Word has length 95 [2022-12-13 21:54:19,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:54:19,872 INFO L495 AbstractCegarLoop]: Abstraction has 26483 states and 38998 transitions. [2022-12-13 21:54:19,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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 21:54:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 26483 states and 38998 transitions. [2022-12-13 21:54:19,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 21:54:19,873 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:54:19,873 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] [2022-12-13 21:54:19,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 21:54:19,873 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:54:19,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:19,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1087415530, now seen corresponding path program 1 times [2022-12-13 21:54:19,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:19,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387074517] [2022-12-13 21:54:19,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:19,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:19,925 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 21:54:19,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:19,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387074517] [2022-12-13 21:54:19,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387074517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:19,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:19,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:54:19,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971992035] [2022-12-13 21:54:19,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:19,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:54:19,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:19,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:54:19,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:19,927 INFO L87 Difference]: Start difference. First operand 26483 states and 38998 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 21:54:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:54:23,698 INFO L93 Difference]: Finished difference Result 50042 states and 73564 transitions. [2022-12-13 21:54:23,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:54:23,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2022-12-13 21:54:23,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:54:23,736 INFO L225 Difference]: With dead ends: 50042 [2022-12-13 21:54:23,736 INFO L226 Difference]: Without dead ends: 37495 [2022-12-13 21:54:23,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:23,748 INFO L413 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:54:23,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:54:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37495 states. [2022-12-13 21:54:27,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37495 to 37493. [2022-12-13 21:54:27,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37493 states, 37491 states have (on average 1.4601904457069697) internal successors, (54744), 37492 states have internal predecessors, (54744), 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 21:54:27,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37493 states to 37493 states and 54744 transitions. [2022-12-13 21:54:27,960 INFO L78 Accepts]: Start accepts. Automaton has 37493 states and 54744 transitions. Word has length 96 [2022-12-13 21:54:27,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:54:27,960 INFO L495 AbstractCegarLoop]: Abstraction has 37493 states and 54744 transitions. [2022-12-13 21:54:27,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 21:54:27,960 INFO L276 IsEmpty]: Start isEmpty. Operand 37493 states and 54744 transitions. [2022-12-13 21:54:27,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 21:54:27,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:54:27,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:27,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 21:54:27,961 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:54:27,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:27,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2006951676, now seen corresponding path program 1 times [2022-12-13 21:54:27,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:27,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313479357] [2022-12-13 21:54:27,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:27,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 21:54:28,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:28,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313479357] [2022-12-13 21:54:28,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313479357] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:28,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:28,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:54:28,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426206546] [2022-12-13 21:54:28,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:28,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:54:28,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:28,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:54:28,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:54:28,026 INFO L87 Difference]: Start difference. First operand 37493 states and 54744 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 21:54:34,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:54:34,792 INFO L93 Difference]: Finished difference Result 44254 states and 66050 transitions. [2022-12-13 21:54:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:54:34,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 101 [2022-12-13 21:54:34,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:54:34,828 INFO L225 Difference]: With dead ends: 44254 [2022-12-13 21:54:34,828 INFO L226 Difference]: Without dead ends: 40497 [2022-12-13 21:54:34,836 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 21:54:34,837 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 892 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 21:54:34,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 689 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 21:54:34,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40497 states. [2022-12-13 21:54:39,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40497 to 40497. [2022-12-13 21:54:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40497 states, 40495 states have (on average 1.4450179034448698) internal successors, (58516), 40496 states have internal predecessors, (58516), 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 21:54:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40497 states to 40497 states and 58516 transitions. [2022-12-13 21:54:39,106 INFO L78 Accepts]: Start accepts. Automaton has 40497 states and 58516 transitions. Word has length 101 [2022-12-13 21:54:39,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:54:39,106 INFO L495 AbstractCegarLoop]: Abstraction has 40497 states and 58516 transitions. [2022-12-13 21:54:39,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 21:54:39,106 INFO L276 IsEmpty]: Start isEmpty. Operand 40497 states and 58516 transitions. [2022-12-13 21:54:39,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 21:54:39,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:54:39,111 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:54:39,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 21:54:39,111 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:54:39,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:54:39,111 INFO L85 PathProgramCache]: Analyzing trace with hash 54573310, now seen corresponding path program 1 times [2022-12-13 21:54:39,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:54:39,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111352198] [2022-12-13 21:54:39,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:54:39,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:54:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:54:39,303 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 21:54:39,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:54:39,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111352198] [2022-12-13 21:54:39,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111352198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:54:39,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:54:39,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:54:39,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664450175] [2022-12-13 21:54:39,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:54:39,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:54:39,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:54:39,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:54:39,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:54:39,305 INFO L87 Difference]: Start difference. First operand 40497 states and 58516 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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 21:55:14,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:55:14,471 INFO L93 Difference]: Finished difference Result 316611 states and 457117 transitions. [2022-12-13 21:55:14,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:55:14,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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 119 [2022-12-13 21:55:14,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:55:14,862 INFO L225 Difference]: With dead ends: 316611 [2022-12-13 21:55:14,862 INFO L226 Difference]: Without dead ends: 282945 [2022-12-13 21:55:14,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:55:14,915 INFO L413 NwaCegarLoop]: 1706 mSDtfsCounter, 11836 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11836 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:55:14,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11836 Valid, 5009 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:55:15,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282945 states. [2022-12-13 21:55:27,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282945 to 74161. [2022-12-13 21:55:27,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74161 states, 74159 states have (on average 1.4397713022020253) internal successors, (106772), 74160 states have internal predecessors, (106772), 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 21:55:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74161 states to 74161 states and 106772 transitions. [2022-12-13 21:55:27,610 INFO L78 Accepts]: Start accepts. Automaton has 74161 states and 106772 transitions. Word has length 119 [2022-12-13 21:55:27,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:55:27,610 INFO L495 AbstractCegarLoop]: Abstraction has 74161 states and 106772 transitions. [2022-12-13 21:55:27,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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 21:55:27,610 INFO L276 IsEmpty]: Start isEmpty. Operand 74161 states and 106772 transitions. [2022-12-13 21:55:27,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 21:55:27,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:55:27,616 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:55:27,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 21:55:27,616 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:55:27,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:55:27,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1996642814, now seen corresponding path program 1 times [2022-12-13 21:55:27,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:55:27,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460941566] [2022-12-13 21:55:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:55:27,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:55:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:55:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 21:55:27,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:55:27,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460941566] [2022-12-13 21:55:27,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460941566] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:55:27,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:55:27,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:55:27,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110698579] [2022-12-13 21:55:27,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:55:27,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:55:27,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:55:27,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:55:27,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:55:27,794 INFO L87 Difference]: Start difference. First operand 74161 states and 106772 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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 21:56:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:56:20,139 INFO L93 Difference]: Finished difference Result 350275 states and 505373 transitions. [2022-12-13 21:56:20,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:56:20,140 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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 119 [2022-12-13 21:56:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:56:20,575 INFO L225 Difference]: With dead ends: 350275 [2022-12-13 21:56:20,575 INFO L226 Difference]: Without dead ends: 316609 [2022-12-13 21:56:20,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:56:20,623 INFO L413 NwaCegarLoop]: 1703 mSDtfsCounter, 11886 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11886 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:56:20,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11886 Valid, 4806 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:56:20,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316609 states. [2022-12-13 21:56:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316609 to 124721. [2022-12-13 21:56:43,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124721 states, 124719 states have (on average 1.4339114329011617) internal successors, (178836), 124720 states have internal predecessors, (178836), 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 21:56:43,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124721 states to 124721 states and 178836 transitions. [2022-12-13 21:56:43,742 INFO L78 Accepts]: Start accepts. Automaton has 124721 states and 178836 transitions. Word has length 119 [2022-12-13 21:56:43,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:56:43,742 INFO L495 AbstractCegarLoop]: Abstraction has 124721 states and 178836 transitions. [2022-12-13 21:56:43,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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 21:56:43,742 INFO L276 IsEmpty]: Start isEmpty. Operand 124721 states and 178836 transitions. [2022-12-13 21:56:43,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 21:56:43,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:56:43,748 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:56:43,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 21:56:43,748 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:56:43,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:56:43,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1871553538, now seen corresponding path program 1 times [2022-12-13 21:56:43,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:56:43,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529525007] [2022-12-13 21:56:43,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:56:43,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:56:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:56:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 21:56:43,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:56:43,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529525007] [2022-12-13 21:56:43,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529525007] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:56:43,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:56:43,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:56:43,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994691788] [2022-12-13 21:56:43,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:56:43,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:56:43,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:56:43,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:56:43,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:56:43,910 INFO L87 Difference]: Start difference. First operand 124721 states and 178836 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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 21:57:50,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:57:50,423 INFO L93 Difference]: Finished difference Result 383939 states and 553629 transitions. [2022-12-13 21:57:50,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:57:50,424 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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 119 [2022-12-13 21:57:50,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:57:50,911 INFO L225 Difference]: With dead ends: 383939 [2022-12-13 21:57:50,911 INFO L226 Difference]: Without dead ends: 350273 [2022-12-13 21:57:50,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:57:50,969 INFO L413 NwaCegarLoop]: 1700 mSDtfsCounter, 11955 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11955 SdHoareTripleChecker+Valid, 4830 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:57:50,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11955 Valid, 4830 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:57:51,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350273 states. [2022-12-13 21:58:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350273 to 158385. [2022-12-13 21:58:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158385 states, 158383 states have (on average 1.4338154978754032) internal successors, (227092), 158384 states have internal predecessors, (227092), 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 21:58:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158385 states to 158385 states and 227092 transitions. [2022-12-13 21:58:22,690 INFO L78 Accepts]: Start accepts. Automaton has 158385 states and 227092 transitions. Word has length 119 [2022-12-13 21:58:22,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:58:22,690 INFO L495 AbstractCegarLoop]: Abstraction has 158385 states and 227092 transitions. [2022-12-13 21:58:22,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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 21:58:22,690 INFO L276 IsEmpty]: Start isEmpty. Operand 158385 states and 227092 transitions. [2022-12-13 21:58:22,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 21:58:22,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:58:22,696 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:58:22,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 21:58:22,696 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:58:22,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:58:22,696 INFO L85 PathProgramCache]: Analyzing trace with hash -633291522, now seen corresponding path program 1 times [2022-12-13 21:58:22,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:58:22,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490195996] [2022-12-13 21:58:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:58:22,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:58:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:58:22,856 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 21:58:22,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:58:22,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490195996] [2022-12-13 21:58:22,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490195996] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:58:22,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:58:22,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:58:22,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590900265] [2022-12-13 21:58:22,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:58:22,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:58:22,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:58:22,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:58:22,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:58:22,858 INFO L87 Difference]: Start difference. First operand 158385 states and 227092 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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 21:59:43,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:59:43,062 INFO L93 Difference]: Finished difference Result 417603 states and 601885 transitions. [2022-12-13 21:59:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:59:43,064 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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 119 [2022-12-13 21:59:43,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:59:43,617 INFO L225 Difference]: With dead ends: 417603 [2022-12-13 21:59:43,618 INFO L226 Difference]: Without dead ends: 383937 [2022-12-13 21:59:43,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:59:43,690 INFO L413 NwaCegarLoop]: 1697 mSDtfsCounter, 12181 mSDsluCounter, 3037 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12181 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:59:43,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12181 Valid, 4734 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:59:43,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383937 states. [2022-12-13 22:00:24,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383937 to 192049. [2022-12-13 22:00:24,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192049 states, 192047 states have (on average 1.4337531958322702) internal successors, (275348), 192048 states have internal predecessors, (275348), 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 22:00:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192049 states to 192049 states and 275348 transitions. [2022-12-13 22:00:24,658 INFO L78 Accepts]: Start accepts. Automaton has 192049 states and 275348 transitions. Word has length 119 [2022-12-13 22:00:24,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:00:24,658 INFO L495 AbstractCegarLoop]: Abstraction has 192049 states and 275348 transitions. [2022-12-13 22:00:24,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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 22:00:24,658 INFO L276 IsEmpty]: Start isEmpty. Operand 192049 states and 275348 transitions. [2022-12-13 22:00:24,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 22:00:24,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:00:24,664 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 22:00:24,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 22:00:24,665 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:00:24,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:00:24,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1067827458, now seen corresponding path program 1 times [2022-12-13 22:00:24,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:00:24,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741797747] [2022-12-13 22:00:24,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:00:24,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:00:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:00:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 22:00:24,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:00:24,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741797747] [2022-12-13 22:00:24,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741797747] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:00:24,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:00:24,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 22:00:24,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693850620] [2022-12-13 22:00:24,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:00:24,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 22:00:24,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:00:24,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 22:00:24,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:00:24,914 INFO L87 Difference]: Start difference. First operand 192049 states and 275348 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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 22:02:03,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:02:03,875 INFO L93 Difference]: Finished difference Result 451267 states and 650141 transitions. [2022-12-13 22:02:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 22:02:03,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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 119 [2022-12-13 22:02:03,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:02:04,523 INFO L225 Difference]: With dead ends: 451267 [2022-12-13 22:02:04,523 INFO L226 Difference]: Without dead ends: 417601 [2022-12-13 22:02:04,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:02:04,605 INFO L413 NwaCegarLoop]: 1696 mSDtfsCounter, 12022 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12022 SdHoareTripleChecker+Valid, 4801 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:02:04,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12022 Valid, 4801 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:02:04,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417601 states. [2022-12-13 22:02:57,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417601 to 225713. [2022-12-13 22:02:57,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225713 states, 225711 states have (on average 1.433709478049364) internal successors, (323604), 225712 states have internal predecessors, (323604), 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 22:02:57,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225713 states to 225713 states and 323604 transitions. [2022-12-13 22:02:57,824 INFO L78 Accepts]: Start accepts. Automaton has 225713 states and 323604 transitions. Word has length 119 [2022-12-13 22:02:57,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:02:57,824 INFO L495 AbstractCegarLoop]: Abstraction has 225713 states and 323604 transitions. [2022-12-13 22:02:57,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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 22:02:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 225713 states and 323604 transitions. [2022-12-13 22:02:57,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 22:02:57,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:02:57,950 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 22:02:57,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 22:02:57,950 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:02:57,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:02:57,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1446206974, now seen corresponding path program 1 times [2022-12-13 22:02:57,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:02:57,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595370975] [2022-12-13 22:02:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:02:57,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:02:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:02:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 22:02:58,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:02:58,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595370975] [2022-12-13 22:02:58,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595370975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:02:58,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:02:58,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 22:02:58,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312454793] [2022-12-13 22:02:58,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:02:58,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 22:02:58,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:02:58,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 22:02:58,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:02:58,124 INFO L87 Difference]: Start difference. First operand 225713 states and 323604 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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 22:04:48,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:04:48,436 INFO L93 Difference]: Finished difference Result 484931 states and 698397 transitions. [2022-12-13 22:04:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 22:04:48,437 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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 119 [2022-12-13 22:04:48,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:04:49,149 INFO L225 Difference]: With dead ends: 484931 [2022-12-13 22:04:49,149 INFO L226 Difference]: Without dead ends: 451265 [2022-12-13 22:04:49,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:04:49,238 INFO L413 NwaCegarLoop]: 1702 mSDtfsCounter, 11787 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11787 SdHoareTripleChecker+Valid, 4981 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:04:49,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11787 Valid, 4981 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:04:49,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451265 states. [2022-12-13 22:05:49,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451265 to 259377. [2022-12-13 22:05:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259377 states, 259375 states have (on average 1.433677108433735) internal successors, (371860), 259376 states have internal predecessors, (371860), 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 22:05:50,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259377 states to 259377 states and 371860 transitions. [2022-12-13 22:05:50,321 INFO L78 Accepts]: Start accepts. Automaton has 259377 states and 371860 transitions. Word has length 119 [2022-12-13 22:05:50,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:50,321 INFO L495 AbstractCegarLoop]: Abstraction has 259377 states and 371860 transitions. [2022-12-13 22:05:50,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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 22:05:50,321 INFO L276 IsEmpty]: Start isEmpty. Operand 259377 states and 371860 transitions. [2022-12-13 22:05:50,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 22:05:50,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:50,328 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 22:05:50,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 22:05:50,328 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:05:50,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:50,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2135409922, now seen corresponding path program 1 times [2022-12-13 22:05:50,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:05:50,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766174376] [2022-12-13 22:05:50,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:50,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:05:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:50,595 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 22:05:50,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:05:50,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766174376] [2022-12-13 22:05:50,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766174376] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:50,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:50,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 22:05:50,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454984292] [2022-12-13 22:05:50,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:50,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 22:05:50,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:05:50,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 22:05:50,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:05:50,597 INFO L87 Difference]: Start difference. First operand 259377 states and 371860 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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)