./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label14.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_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/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_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/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_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/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 459b3de65954f02af19d1ad6196a5c348b6b445599144da2850cf226fa2b8d40 --- 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 21:42:48,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:42:48,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:42:48,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:42:48,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:42:48,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:42:48,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:42:48,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:42:48,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:42:48,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:42:48,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:42:48,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:42:48,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:42:48,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:42:48,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:42:48,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:42:48,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:42:48,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:42:48,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:42:48,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:42:48,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:42:48,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:42:48,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:42:48,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:42:48,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:42:48,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:42:48,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:42:48,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:42:48,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:42:48,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:42:48,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:42:48,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:42:48,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:42:48,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:42:48,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:42:48,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:42:48,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:42:48,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:42:48,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:42:48,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:42:48,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:42:48,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:42:48,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:42:48,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:42:48,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:42:48,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:42:48,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:42:48,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:42:48,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:42:48,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:42:48,570 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:42:48,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:42:48,571 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:42:48,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:42:48,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:42:48,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:42:48,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:42:48,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:42:48,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:42:48,572 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:42:48,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:42:48,572 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:42:48,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:42:48,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:42:48,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:42:48,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:42:48,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:42:48,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:42:48,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:42:48,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:42:48,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:42:48,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:42:48,574 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:42:48,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:42:48,575 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:42:48,575 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:42:48,575 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:42:48,575 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_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 459b3de65954f02af19d1ad6196a5c348b6b445599144da2850cf226fa2b8d40 [2022-12-13 21:42:48,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:42:48,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:42:48,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:42:48,807 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:42:48,807 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:42:48,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-programs/Problem101_label14.c [2022-12-13 21:42:51,383 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:42:52,600 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:42:52,600 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/sv-benchmarks/c/eca-programs/Problem101_label14.c [2022-12-13 21:42:52,717 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/data/704affcc7/8e7f181673e04ac5b42d0d6b822ce75c/FLAG69ddf8803 [2022-12-13 21:42:52,965 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/data/704affcc7/8e7f181673e04ac5b42d0d6b822ce75c [2022-12-13 21:42:52,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:42:52,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:42:52,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:42:52,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:42:52,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:42:52,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:42:52" (1/1) ... [2022-12-13 21:42:52,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291a2d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:52, skipping insertion in model container [2022-12-13 21:42:52,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:42:52" (1/1) ... [2022-12-13 21:42:53,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:42:53,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:43:03,629 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_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/sv-benchmarks/c/eca-programs/Problem101_label14.c[2767479,2767492] [2022-12-13 21:43:03,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:43:03,692 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:43:09,552 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_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/sv-benchmarks/c/eca-programs/Problem101_label14.c[2767479,2767492] [2022-12-13 21:43:09,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:43:10,178 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:43:10,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10 WrapperNode [2022-12-13 21:43:10,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:43:10,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:43:10,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:43:10,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:43:10,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:10,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:11,839 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83780 [2022-12-13 21:43:11,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:43:11,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:43:11,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:43:11,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:43:11,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:11,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:12,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:12,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:12,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:12,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:12,746 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:12,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:13,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:43:13,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:43:13,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:43:13,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:43:13,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (1/1) ... [2022-12-13 21:43:13,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:43:13,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:43:13,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:43:13,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6fa163-29c5-4f5c-be3c-7a675ced1ca2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:43:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:43:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:43:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:43:13,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:43:13,291 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:43:13,292 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:43:44,640 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:43:44,673 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:43:44,673 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:43:44,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:43:44 BoogieIcfgContainer [2022-12-13 21:43:44,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:43:44,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:43:44,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:43:44,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:43:44,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:42:52" (1/3) ... [2022-12-13 21:43:44,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e64d9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:43:44, skipping insertion in model container [2022-12-13 21:43:44,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:43:10" (2/3) ... [2022-12-13 21:43:44,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e64d9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:43:44, skipping insertion in model container [2022-12-13 21:43:44,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:43:44" (3/3) ... [2022-12-13 21:43:44,685 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label14.c [2022-12-13 21:43:44,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:43:44,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:43:44,816 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:43:44,821 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;@292def42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:43:44,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:43:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:43:45,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10093 [2022-12-13 21:43:45,302 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:43:45,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:43:45,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:43:45,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:43:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1513014258, now seen corresponding path program 1 times [2022-12-13 21:43:45,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:43:45,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878284581] [2022-12-13 21:43:45,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:43:45,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:43:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:18,532 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 21:44:18,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:18,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878284581] [2022-12-13 21:44:18,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878284581] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:18,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:18,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:44:18,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213489174] [2022-12-13 21:44:18,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:18,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:44:18,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:18,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:44:18,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:44:18,600 INFO L87 Difference]: Start difference. First operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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 21:44:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:44:48,558 INFO L93 Difference]: Finished difference Result 30716 states and 61145 transitions. [2022-12-13 21:44:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:44:48,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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 10092 [2022-12-13 21:44:48,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:44:48,632 INFO L225 Difference]: With dead ends: 30716 [2022-12-13 21:44:48,632 INFO L226 Difference]: Without dead ends: 20384 [2022-12-13 21:44:48,646 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 21:44:48,648 INFO L413 NwaCegarLoop]: 5117 mSDtfsCounter, 1992 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 33578 mSolverCounterSat, 7054 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 5170 SdHoareTripleChecker+Invalid, 40632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7054 IncrementalHoareTripleChecker+Valid, 33578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:44:48,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 5170 Invalid, 40632 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7054 Valid, 33578 Invalid, 0 Unknown, 0 Unchecked, 29.4s Time] [2022-12-13 21:44:48,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20384 states. [2022-12-13 21:44:49,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20384. [2022-12-13 21:44:49,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20384 states, 20383 states have (on average 1.7444929598194574) internal successors, (35558), 20383 states have internal predecessors, (35558), 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 21:44:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 35558 transitions. [2022-12-13 21:44:49,120 INFO L78 Accepts]: Start accepts. Automaton has 20384 states and 35558 transitions. Word has length 10092 [2022-12-13 21:44:49,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:44:49,130 INFO L495 AbstractCegarLoop]: Abstraction has 20384 states and 35558 transitions. [2022-12-13 21:44:49,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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 21:44:49,132 INFO L276 IsEmpty]: Start isEmpty. Operand 20384 states and 35558 transitions. [2022-12-13 21:44:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10097 [2022-12-13 21:44:49,702 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:44:49,705 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:49,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:44:49,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:44:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1517208038, now seen corresponding path program 1 times [2022-12-13 21:44:49,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689091489] [2022-12-13 21:44:49,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:49,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:45:11,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:45:11,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:45:11,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689091489] [2022-12-13 21:45:11,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689091489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:45:11,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:45:11,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:45:11,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393082343] [2022-12-13 21:45:11,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:45:11,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:45:11,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:45:11,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:45:11,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:45:11,837 INFO L87 Difference]: Start difference. First operand 20384 states and 35558 transitions. Second operand has 3 states, 3 states have (on average 3365.3333333333335) internal successors, (10096), 2 states have internal predecessors, (10096), 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 21:45:42,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:45:42,668 INFO L93 Difference]: Finished difference Result 61146 states and 106669 transitions. [2022-12-13 21:45:42,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:45:42,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3365.3333333333335) internal successors, (10096), 2 states have internal predecessors, (10096), 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 10096 [2022-12-13 21:45:42,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:45:42,724 INFO L225 Difference]: With dead ends: 61146 [2022-12-13 21:45:42,724 INFO L226 Difference]: Without dead ends: 40764 [2022-12-13 21:45:42,737 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 21:45:42,738 INFO L413 NwaCegarLoop]: 4835 mSDtfsCounter, 13865 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28700 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13865 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 40458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 28700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:45:42,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13865 Valid, 4884 Invalid, 40458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 28700 Invalid, 0 Unknown, 0 Unchecked, 30.2s Time] [2022-12-13 21:45:42,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40764 states. [2022-12-13 21:45:43,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40764 to 40764. [2022-12-13 21:45:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40764 states, 40763 states have (on average 1.5682113681524912) internal successors, (63925), 40763 states have internal predecessors, (63925), 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 21:45:43,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 63925 transitions. [2022-12-13 21:45:43,172 INFO L78 Accepts]: Start accepts. Automaton has 40764 states and 63925 transitions. Word has length 10096 [2022-12-13 21:45:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:45:43,173 INFO L495 AbstractCegarLoop]: Abstraction has 40764 states and 63925 transitions. [2022-12-13 21:45:43,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3365.3333333333335) internal successors, (10096), 2 states have internal predecessors, (10096), 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 21:45:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 40764 states and 63925 transitions. [2022-12-13 21:45:43,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10098 [2022-12-13 21:45:43,747 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:45:43,750 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:45:43,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:45:43,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:45:43,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:45:43,752 INFO L85 PathProgramCache]: Analyzing trace with hash -240089670, now seen corresponding path program 1 times [2022-12-13 21:45:43,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:45:43,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171342254] [2022-12-13 21:45:43,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:45:43,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:45:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:46:05,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:46:05,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:46:05,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171342254] [2022-12-13 21:46:05,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171342254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:46:05,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:46:05,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:46:05,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751540119] [2022-12-13 21:46:05,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:46:05,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:46:05,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:46:05,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:46:05,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:46:05,657 INFO L87 Difference]: Start difference. First operand 40764 states and 63925 transitions. Second operand has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 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 21:46:33,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:46:33,794 INFO L93 Difference]: Finished difference Result 122286 states and 191770 transitions. [2022-12-13 21:46:33,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:46:33,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 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 10097 [2022-12-13 21:46:33,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:46:33,868 INFO L225 Difference]: With dead ends: 122286 [2022-12-13 21:46:33,869 INFO L226 Difference]: Without dead ends: 81524 [2022-12-13 21:46:33,902 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 21:46:33,903 INFO L413 NwaCegarLoop]: 6214 mSDtfsCounter, 12828 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29360 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12828 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 41037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 29360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:46:33,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12828 Valid, 6263 Invalid, 41037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 29360 Invalid, 0 Unknown, 0 Unchecked, 27.5s Time] [2022-12-13 21:46:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81524 states. [2022-12-13 21:46:34,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81524 to 81524. [2022-12-13 21:46:34,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81524 states, 81523 states have (on average 1.437373501956503) internal successors, (117179), 81523 states have internal predecessors, (117179), 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 21:46:34,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81524 states to 81524 states and 117179 transitions. [2022-12-13 21:46:34,627 INFO L78 Accepts]: Start accepts. Automaton has 81524 states and 117179 transitions. Word has length 10097 [2022-12-13 21:46:34,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:46:34,628 INFO L495 AbstractCegarLoop]: Abstraction has 81524 states and 117179 transitions. [2022-12-13 21:46:34,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 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 21:46:34,630 INFO L276 IsEmpty]: Start isEmpty. Operand 81524 states and 117179 transitions. [2022-12-13 21:46:35,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10104 [2022-12-13 21:46:35,267 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:46:35,270 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:46:35,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:46:35,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:46:35,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:46:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1677837205, now seen corresponding path program 1 times [2022-12-13 21:46:35,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:46:35,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554655491] [2022-12-13 21:46:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:46:35,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:46:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:47:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:47:00,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:47:00,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554655491] [2022-12-13 21:47:00,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554655491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:47:00,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:47:00,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:47:00,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58981048] [2022-12-13 21:47:00,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:47:00,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:47:00,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:47:00,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:47:00,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:47:00,471 INFO L87 Difference]: Start difference. First operand 81524 states and 117179 transitions. Second operand has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 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 21:47:29,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:47:29,534 INFO L93 Difference]: Finished difference Result 244566 states and 351532 transitions. [2022-12-13 21:47:29,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:47:29,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 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 10103 [2022-12-13 21:47:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:47:29,700 INFO L225 Difference]: With dead ends: 244566 [2022-12-13 21:47:29,700 INFO L226 Difference]: Without dead ends: 163044 [2022-12-13 21:47:29,733 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 21:47:29,734 INFO L413 NwaCegarLoop]: 6168 mSDtfsCounter, 13400 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27533 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13400 SdHoareTripleChecker+Valid, 6217 SdHoareTripleChecker+Invalid, 40563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:47:29,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13400 Valid, 6217 Invalid, 40563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27533 Invalid, 0 Unknown, 0 Unchecked, 28.1s Time] [2022-12-13 21:47:29,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163044 states. [2022-12-13 21:47:30,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163044 to 163044. [2022-12-13 21:47:30,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163044 states, 163043 states have (on average 1.3137699870586288) internal successors, (214201), 163043 states have internal predecessors, (214201), 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 21:47:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163044 states to 163044 states and 214201 transitions. [2022-12-13 21:47:31,296 INFO L78 Accepts]: Start accepts. Automaton has 163044 states and 214201 transitions. Word has length 10103 [2022-12-13 21:47:31,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:47:31,297 INFO L495 AbstractCegarLoop]: Abstraction has 163044 states and 214201 transitions. [2022-12-13 21:47:31,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 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 21:47:31,299 INFO L276 IsEmpty]: Start isEmpty. Operand 163044 states and 214201 transitions. [2022-12-13 21:47:32,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10114 [2022-12-13 21:47:32,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:47:32,052 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:32,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:47:32,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:47:32,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:32,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1415751570, now seen corresponding path program 1 times [2022-12-13 21:47:32,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:32,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478416908] [2022-12-13 21:47:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:32,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:48:05,857 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:48:05,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:48:05,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478416908] [2022-12-13 21:48:05,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478416908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:48:05,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:48:05,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:48:05,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841771081] [2022-12-13 21:48:05,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:48:05,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:48:05,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:48:05,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:48:05,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:48:05,870 INFO L87 Difference]: Start difference. First operand 163044 states and 214201 transitions. Second operand has 3 states, 3 states have (on average 3371.0) internal successors, (10113), 2 states have internal predecessors, (10113), 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 21:48:32,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:48:32,515 INFO L93 Difference]: Finished difference Result 407606 states and 527576 transitions. [2022-12-13 21:48:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:48:32,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3371.0) internal successors, (10113), 2 states have internal predecessors, (10113), 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 10113 [2022-12-13 21:48:32,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:48:32,779 INFO L225 Difference]: With dead ends: 407606 [2022-12-13 21:48:32,779 INFO L226 Difference]: Without dead ends: 244564 [2022-12-13 21:48:32,828 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 21:48:32,829 INFO L413 NwaCegarLoop]: 8007 mSDtfsCounter, 11128 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28480 mSolverCounterSat, 7491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11128 SdHoareTripleChecker+Valid, 8056 SdHoareTripleChecker+Invalid, 35971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7491 IncrementalHoareTripleChecker+Valid, 28480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:48:32,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11128 Valid, 8056 Invalid, 35971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7491 Valid, 28480 Invalid, 0 Unknown, 0 Unchecked, 25.4s Time] [2022-12-13 21:48:32,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244564 states. [2022-12-13 21:48:34,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244564 to 244564. [2022-12-13 21:48:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244564 states, 244563 states have (on average 1.243888077918573) internal successors, (304209), 244563 states have internal predecessors, (304209), 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 21:48:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244564 states to 244564 states and 304209 transitions. [2022-12-13 21:48:35,228 INFO L78 Accepts]: Start accepts. Automaton has 244564 states and 304209 transitions. Word has length 10113 [2022-12-13 21:48:35,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:48:35,228 INFO L495 AbstractCegarLoop]: Abstraction has 244564 states and 304209 transitions. [2022-12-13 21:48:35,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3371.0) internal successors, (10113), 2 states have internal predecessors, (10113), 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 21:48:35,230 INFO L276 IsEmpty]: Start isEmpty. Operand 244564 states and 304209 transitions. [2022-12-13 21:48:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10143 [2022-12-13 21:48:36,053 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:48:36,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:48:36,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:48:36,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:48:36,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:48:36,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1546974151, now seen corresponding path program 1 times [2022-12-13 21:48:36,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:48:36,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866321597] [2022-12-13 21:48:36,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:48:36,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:48:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:48:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:48:58,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:48:58,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866321597] [2022-12-13 21:48:58,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866321597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:48:58,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:48:58,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:48:58,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066762823] [2022-12-13 21:48:58,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:48:58,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:48:58,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:48:58,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:48:58,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:48:58,162 INFO L87 Difference]: Start difference. First operand 244564 states and 304209 transitions. Second operand has 3 states, 3 states have (on average 3380.6666666666665) internal successors, (10142), 2 states have internal predecessors, (10142), 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 21:49:28,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:49:28,846 INFO L93 Difference]: Finished difference Result 733686 states and 912622 transitions. [2022-12-13 21:49:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:49:28,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3380.6666666666665) internal successors, (10142), 2 states have internal predecessors, (10142), 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 10142 [2022-12-13 21:49:28,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:49:29,407 INFO L225 Difference]: With dead ends: 733686 [2022-12-13 21:49:29,408 INFO L226 Difference]: Without dead ends: 489124 [2022-12-13 21:49:29,566 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 21:49:29,567 INFO L413 NwaCegarLoop]: 7238 mSDtfsCounter, 11829 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 30502 mSolverCounterSat, 11086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11829 SdHoareTripleChecker+Valid, 7288 SdHoareTripleChecker+Invalid, 41588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11086 IncrementalHoareTripleChecker+Valid, 30502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:49:29,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11829 Valid, 7288 Invalid, 41588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11086 Valid, 30502 Invalid, 0 Unknown, 0 Unchecked, 28.7s Time] [2022-12-13 21:49:29,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489124 states. [2022-12-13 21:49:33,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489124 to 489124. [2022-12-13 21:49:33,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489124 states, 489123 states have (on average 1.1869223078857465) internal successors, (580551), 489123 states have internal predecessors, (580551), 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 21:49:34,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489124 states to 489124 states and 580551 transitions. [2022-12-13 21:49:34,792 INFO L78 Accepts]: Start accepts. Automaton has 489124 states and 580551 transitions. Word has length 10142 [2022-12-13 21:49:34,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:49:34,793 INFO L495 AbstractCegarLoop]: Abstraction has 489124 states and 580551 transitions. [2022-12-13 21:49:34,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3380.6666666666665) internal successors, (10142), 2 states have internal predecessors, (10142), 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 21:49:34,794 INFO L276 IsEmpty]: Start isEmpty. Operand 489124 states and 580551 transitions. [2022-12-13 21:49:36,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10280 [2022-12-13 21:49:36,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:49:36,021 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:49:36,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 21:49:36,022 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:49:36,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:49:36,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1584312141, now seen corresponding path program 1 times [2022-12-13 21:49:36,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:49:36,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180994039] [2022-12-13 21:49:36,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:49:36,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:49:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:49:59,545 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:49:59,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:49:59,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180994039] [2022-12-13 21:49:59,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180994039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:49:59,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:49:59,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:49:59,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703337942] [2022-12-13 21:49:59,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:49:59,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:49:59,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:49:59,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:49:59,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:49:59,557 INFO L87 Difference]: Start difference. First operand 489124 states and 580551 transitions. Second operand has 3 states, 3 states have (on average 3426.3333333333335) internal successors, (10279), 2 states have internal predecessors, (10279), 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 21:50:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:50:32,271 INFO L93 Difference]: Finished difference Result 1467366 states and 1741648 transitions. [2022-12-13 21:50:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:50:32,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3426.3333333333335) internal successors, (10279), 2 states have internal predecessors, (10279), 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 10279 [2022-12-13 21:50:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:50:33,587 INFO L225 Difference]: With dead ends: 1467366 [2022-12-13 21:50:33,587 INFO L226 Difference]: Without dead ends: 978244 [2022-12-13 21:50:33,802 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 21:50:33,804 INFO L413 NwaCegarLoop]: 6467 mSDtfsCounter, 12281 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30671 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12281 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 41172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 30671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:50:33,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12281 Valid, 6516 Invalid, 41172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 30671 Invalid, 0 Unknown, 0 Unchecked, 28.7s Time] [2022-12-13 21:50:34,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978244 states. [2022-12-13 21:50:42,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978244 to 978244. [2022-12-13 21:50:42,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978244 states, 978243 states have (on average 1.1423388667232988) internal successors, (1117485), 978243 states have internal predecessors, (1117485), 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 21:50:44,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978244 states to 978244 states and 1117485 transitions. [2022-12-13 21:50:44,401 INFO L78 Accepts]: Start accepts. Automaton has 978244 states and 1117485 transitions. Word has length 10279 [2022-12-13 21:50:44,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:50:44,403 INFO L495 AbstractCegarLoop]: Abstraction has 978244 states and 1117485 transitions. [2022-12-13 21:50:44,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3426.3333333333335) internal successors, (10279), 2 states have internal predecessors, (10279), 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 21:50:44,404 INFO L276 IsEmpty]: Start isEmpty. Operand 978244 states and 1117485 transitions. [2022-12-13 21:50:46,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10502 [2022-12-13 21:50:46,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:50:46,394 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:50:46,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:50:46,394 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:50:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:50:46,396 INFO L85 PathProgramCache]: Analyzing trace with hash -380157739, now seen corresponding path program 1 times [2022-12-13 21:50:46,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:50:46,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457616795] [2022-12-13 21:50:46,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:50:46,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:50:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:51:13,289 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-12-13 21:51:13,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:51:13,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457616795] [2022-12-13 21:51:13,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457616795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:51:13,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:51:13,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:51:13,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321029913] [2022-12-13 21:51:13,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:51:13,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:51:13,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:51:13,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:51:13,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:51:13,305 INFO L87 Difference]: Start difference. First operand 978244 states and 1117485 transitions. Second operand has 3 states, 3 states have (on average 3460.0) internal successors, (10380), 2 states have internal predecessors, (10380), 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 21:51:52,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:51:52,937 INFO L93 Difference]: Finished difference Result 2934726 states and 3352450 transitions. [2022-12-13 21:51:52,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:51:52,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3460.0) internal successors, (10380), 2 states have internal predecessors, (10380), 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 10501 [2022-12-13 21:51:52,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:51:55,749 INFO L225 Difference]: With dead ends: 2934726 [2022-12-13 21:51:55,750 INFO L226 Difference]: Without dead ends: 1956484 [2022-12-13 21:51:56,212 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 21:51:56,212 INFO L413 NwaCegarLoop]: 6685 mSDtfsCounter, 10529 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30606 mSolverCounterSat, 12522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10529 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 43128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12522 IncrementalHoareTripleChecker+Valid, 30606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:51:56,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10529 Valid, 6734 Invalid, 43128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12522 Valid, 30606 Invalid, 0 Unknown, 0 Unchecked, 32.2s Time] [2022-12-13 21:51:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956484 states. [2022-12-13 21:52:13,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956484 to 1956484. [2022-12-13 21:52:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1956484 states, 1956483 states have (on average 1.1169189816625036) internal successors, (2185233), 1956483 states have internal predecessors, (2185233), 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 21:52:17,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956484 states to 1956484 states and 2185233 transitions. [2022-12-13 21:52:17,569 INFO L78 Accepts]: Start accepts. Automaton has 1956484 states and 2185233 transitions. Word has length 10501 [2022-12-13 21:52:17,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:52:17,570 INFO L495 AbstractCegarLoop]: Abstraction has 1956484 states and 2185233 transitions. [2022-12-13 21:52:17,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3460.0) internal successors, (10380), 2 states have internal predecessors, (10380), 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 21:52:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1956484 states and 2185233 transitions. [2022-12-13 21:52:20,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10705 [2022-12-13 21:52:20,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:52:20,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:52:20,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 21:52:20,528 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:52:20,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:52:20,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1664800529, now seen corresponding path program 1 times [2022-12-13 21:52:20,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:52:20,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044203712] [2022-12-13 21:52:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:52:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:52:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:52:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 609 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-12-13 21:52:55,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:52:55,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044203712] [2022-12-13 21:52:55,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044203712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:52:55,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:52:55,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:52:55,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695888973] [2022-12-13 21:52:55,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:52:55,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:52:55,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:52:55,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:52:55,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:52:55,693 INFO L87 Difference]: Start difference. First operand 1956484 states and 2185233 transitions. Second operand has 3 states, 3 states have (on average 3506.0) internal successors, (10518), 2 states have internal predecessors, (10518), 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)