./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.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_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/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_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/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_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/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 8e8985b7b99a6dec53be0ba16cc0e7b241934830d919fef1f601cc1b51084525 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:59:20,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:59:20,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:59:20,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:59:20,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:59:20,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:59:20,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:59:20,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:59:20,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:59:20,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:59:20,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:59:20,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:59:20,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:59:20,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:59:20,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:59:20,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:59:20,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:59:20,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:59:20,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:59:20,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:59:20,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:59:20,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:59:20,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:59:20,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:59:20,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:59:20,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:59:20,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:59:20,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:59:20,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:59:20,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:59:20,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:59:20,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:59:20,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:59:20,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:59:20,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:59:20,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:59:20,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:59:20,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:59:20,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:59:20,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:59:20,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:59:20,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 12:59:20,485 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:59:20,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:59:20,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:59:20,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:59:20,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:59:20,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:59:20,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:59:20,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:59:20,487 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:59:20,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:59:20,488 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:59:20,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:59:20,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:59:20,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:59:20,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:59:20,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:59:20,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:59:20,489 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:59:20,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:59:20,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:59:20,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:59:20,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:59:20,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:59:20,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:59:20,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:59:20,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:59:20,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:59:20,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:59:20,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:59:20,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:59:20,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:59:20,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:59:20,491 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:59:20,491 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:59:20,492 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:59:20,492 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_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e8985b7b99a6dec53be0ba16cc0e7b241934830d919fef1f601cc1b51084525 [2022-12-13 12:59:20,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:59:20,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:59:20,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:59:20,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:59:20,699 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:59:20,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-12-13 12:59:23,297 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:59:23,479 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:59:23,480 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-12-13 12:59:23,488 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/data/ff528369f/a846ac43522c4671a66c7bf36c8e04ef/FLAGf66517705 [2022-12-13 12:59:23,502 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/data/ff528369f/a846ac43522c4671a66c7bf36c8e04ef [2022-12-13 12:59:23,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:59:23,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:59:23,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:59:23,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:59:23,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:59:23,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482bcdfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23, skipping insertion in model container [2022-12-13 12:59:23,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:59:23,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:59:23,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[4900,4913] [2022-12-13 12:59:23,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:59:23,753 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:59:23,776 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_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[4900,4913] [2022-12-13 12:59:23,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:59:23,799 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:59:23,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23 WrapperNode [2022-12-13 12:59:23,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:59:23,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:59:23,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:59:23,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:59:23,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,830 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 342 [2022-12-13 12:59:23,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:59:23,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:59:23,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:59:23,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:59:23,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,863 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:59:23,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:59:23,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:59:23,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:59:23,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (1/1) ... [2022-12-13 12:59:23,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:59:23,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:59:23,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:59:23,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:59:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:59:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:59:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:59:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:59:24,020 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:59:24,021 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:59:24,281 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:59:24,286 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:59:24,286 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:59:24,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:59:24 BoogieIcfgContainer [2022-12-13 12:59:24,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:59:24,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:59:24,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:59:24,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:59:24,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:59:23" (1/3) ... [2022-12-13 12:59:24,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ef233f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:59:24, skipping insertion in model container [2022-12-13 12:59:24,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:59:23" (2/3) ... [2022-12-13 12:59:24,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ef233f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:59:24, skipping insertion in model container [2022-12-13 12:59:24,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:59:24" (3/3) ... [2022-12-13 12:59:24,294 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-12-13 12:59:24,308 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:59:24,308 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 12:59:24,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:59:24,348 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;@7e4a14d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:59:24,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 12:59:24,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 77 states have (on average 1.7272727272727273) internal successors, (133), 79 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:24,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-13 12:59:24,357 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:24,357 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] [2022-12-13 12:59:24,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:24,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:24,362 INFO L85 PathProgramCache]: Analyzing trace with hash -347547403, now seen corresponding path program 1 times [2022-12-13 12:59:24,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:24,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37716065] [2022-12-13 12:59:24,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:24,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:24,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37716065] [2022-12-13 12:59:24,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37716065] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:24,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:24,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:59:24,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094080458] [2022-12-13 12:59:24,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:24,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:59:24,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:24,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:59:24,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:24,618 INFO L87 Difference]: Start difference. First operand has 80 states, 77 states have (on average 1.7272727272727273) internal successors, (133), 79 states have internal predecessors, (133), 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 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:24,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:24,669 INFO L93 Difference]: Finished difference Result 180 states and 286 transitions. [2022-12-13 12:59:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:59:24,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2022-12-13 12:59:24,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:24,677 INFO L225 Difference]: With dead ends: 180 [2022-12-13 12:59:24,677 INFO L226 Difference]: Without dead ends: 116 [2022-12-13 12:59:24,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:24,682 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 91 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:24,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 277 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:24,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-12-13 12:59:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2022-12-13 12:59:24,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.4424778761061947) internal successors, (163), 113 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions. [2022-12-13 12:59:24,716 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 47 [2022-12-13 12:59:24,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:24,716 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 163 transitions. [2022-12-13 12:59:24,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:24,717 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions. [2022-12-13 12:59:24,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 12:59:24,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:24,718 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] [2022-12-13 12:59:24,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:59:24,718 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:24,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:24,719 INFO L85 PathProgramCache]: Analyzing trace with hash -391185874, now seen corresponding path program 1 times [2022-12-13 12:59:24,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:24,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12144617] [2022-12-13 12:59:24,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:24,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:24,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:24,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12144617] [2022-12-13 12:59:24,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12144617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:24,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:24,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:59:24,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972387079] [2022-12-13 12:59:24,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:24,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:59:24,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:24,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:59:24,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:24,807 INFO L87 Difference]: Start difference. First operand 114 states and 163 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:24,850 INFO L93 Difference]: Finished difference Result 274 states and 411 transitions. [2022-12-13 12:59:24,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:59:24,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-12-13 12:59:24,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:24,852 INFO L225 Difference]: With dead ends: 274 [2022-12-13 12:59:24,852 INFO L226 Difference]: Without dead ends: 186 [2022-12-13 12:59:24,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:24,853 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 61 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:24,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 228 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:24,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-12-13 12:59:24,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2022-12-13 12:59:24,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.4808743169398908) internal successors, (271), 183 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:24,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 271 transitions. [2022-12-13 12:59:24,889 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 271 transitions. Word has length 48 [2022-12-13 12:59:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:24,890 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 271 transitions. [2022-12-13 12:59:24,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:24,890 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 271 transitions. [2022-12-13 12:59:24,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 12:59:24,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:24,891 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] [2022-12-13 12:59:24,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:59:24,891 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:24,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:24,892 INFO L85 PathProgramCache]: Analyzing trace with hash -2047730124, now seen corresponding path program 1 times [2022-12-13 12:59:24,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:24,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76222361] [2022-12-13 12:59:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:24,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:24,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:24,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:24,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76222361] [2022-12-13 12:59:24,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76222361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:24,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:24,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:59:24,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938121215] [2022-12-13 12:59:24,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:24,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:59:24,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:24,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:59:24,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:24,961 INFO L87 Difference]: Start difference. First operand 184 states and 271 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:25,015 INFO L93 Difference]: Finished difference Result 468 states and 709 transitions. [2022-12-13 12:59:25,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:59:25,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2022-12-13 12:59:25,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:25,019 INFO L225 Difference]: With dead ends: 468 [2022-12-13 12:59:25,019 INFO L226 Difference]: Without dead ends: 310 [2022-12-13 12:59:25,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:25,020 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 56 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:25,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:25,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-12-13 12:59:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 308. [2022-12-13 12:59:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.495114006514658) internal successors, (459), 307 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:25,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 459 transitions. [2022-12-13 12:59:25,049 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 459 transitions. Word has length 49 [2022-12-13 12:59:25,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:25,050 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 459 transitions. [2022-12-13 12:59:25,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 459 transitions. [2022-12-13 12:59:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 12:59:25,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:25,051 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] [2022-12-13 12:59:25,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:59:25,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:25,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:25,052 INFO L85 PathProgramCache]: Analyzing trace with hash -415311335, now seen corresponding path program 1 times [2022-12-13 12:59:25,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:25,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711803968] [2022-12-13 12:59:25,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:25,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:25,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:25,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711803968] [2022-12-13 12:59:25,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711803968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:25,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:25,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:59:25,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048896627] [2022-12-13 12:59:25,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:25,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:59:25,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:25,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:59:25,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:25,109 INFO L87 Difference]: Start difference. First operand 308 states and 459 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:25,186 INFO L93 Difference]: Finished difference Result 808 states and 1221 transitions. [2022-12-13 12:59:25,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:59:25,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2022-12-13 12:59:25,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:25,191 INFO L225 Difference]: With dead ends: 808 [2022-12-13 12:59:25,191 INFO L226 Difference]: Without dead ends: 526 [2022-12-13 12:59:25,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:25,193 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 51 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:25,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 220 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:25,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-12-13 12:59:25,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 524. [2022-12-13 12:59:25,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 523 states have (on average 1.4894837476099427) internal successors, (779), 523 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 779 transitions. [2022-12-13 12:59:25,267 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 779 transitions. Word has length 50 [2022-12-13 12:59:25,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:25,268 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 779 transitions. [2022-12-13 12:59:25,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 779 transitions. [2022-12-13 12:59:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 12:59:25,270 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:25,270 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] [2022-12-13 12:59:25,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:59:25,270 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:25,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:25,271 INFO L85 PathProgramCache]: Analyzing trace with hash -103942672, now seen corresponding path program 1 times [2022-12-13 12:59:25,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:25,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622513209] [2022-12-13 12:59:25,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:25,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:25,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:25,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622513209] [2022-12-13 12:59:25,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622513209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:25,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:25,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:59:25,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060054168] [2022-12-13 12:59:25,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:25,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:59:25,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:25,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:59:25,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:59:25,383 INFO L87 Difference]: Start difference. First operand 524 states and 779 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:25,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:25,940 INFO L93 Difference]: Finished difference Result 4508 states and 6803 transitions. [2022-12-13 12:59:25,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 12:59:25,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2022-12-13 12:59:25,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:25,949 INFO L225 Difference]: With dead ends: 4508 [2022-12-13 12:59:25,950 INFO L226 Difference]: Without dead ends: 4010 [2022-12-13 12:59:25,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 12:59:25,952 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 756 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:25,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 979 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:59:25,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2022-12-13 12:59:26,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 1020. [2022-12-13 12:59:26,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 1019 states have (on average 1.4867517173699705) internal successors, (1515), 1019 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:26,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1515 transitions. [2022-12-13 12:59:26,084 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1515 transitions. Word has length 51 [2022-12-13 12:59:26,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:26,084 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1515 transitions. [2022-12-13 12:59:26,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:26,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1515 transitions. [2022-12-13 12:59:26,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 12:59:26,086 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:26,086 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] [2022-12-13 12:59:26,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:59:26,086 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:26,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:26,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2026482100, now seen corresponding path program 1 times [2022-12-13 12:59:26,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:26,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114538362] [2022-12-13 12:59:26,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:26,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:26,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:26,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:26,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114538362] [2022-12-13 12:59:26,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114538362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:26,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:26,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:59:26,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557738764] [2022-12-13 12:59:26,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:26,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:59:26,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:26,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:59:26,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:26,159 INFO L87 Difference]: Start difference. First operand 1020 states and 1515 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:26,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:26,281 INFO L93 Difference]: Finished difference Result 2506 states and 3743 transitions. [2022-12-13 12:59:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:59:26,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2022-12-13 12:59:26,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:26,285 INFO L225 Difference]: With dead ends: 2506 [2022-12-13 12:59:26,285 INFO L226 Difference]: Without dead ends: 1512 [2022-12-13 12:59:26,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:59:26,287 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 45 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:26,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 196 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:26,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-12-13 12:59:26,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1510. [2022-12-13 12:59:26,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 1.4824387011265738) internal successors, (2237), 1509 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:26,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2237 transitions. [2022-12-13 12:59:26,390 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2237 transitions. Word has length 53 [2022-12-13 12:59:26,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:26,391 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 2237 transitions. [2022-12-13 12:59:26,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:26,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2237 transitions. [2022-12-13 12:59:26,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 12:59:26,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:26,392 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] [2022-12-13 12:59:26,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:59:26,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:26,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:26,392 INFO L85 PathProgramCache]: Analyzing trace with hash -2005479445, now seen corresponding path program 1 times [2022-12-13 12:59:26,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:26,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214144689] [2022-12-13 12:59:26,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:26,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:26,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:26,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:26,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214144689] [2022-12-13 12:59:26,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214144689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:26,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:26,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:59:26,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174487684] [2022-12-13 12:59:26,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:26,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:59:26,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:26,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:59:26,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:59:26,569 INFO L87 Difference]: Start difference. First operand 1510 states and 2237 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:26,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:26,771 INFO L93 Difference]: Finished difference Result 2994 states and 4447 transitions. [2022-12-13 12:59:26,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:59:26,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2022-12-13 12:59:26,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:26,777 INFO L225 Difference]: With dead ends: 2994 [2022-12-13 12:59:26,777 INFO L226 Difference]: Without dead ends: 1512 [2022-12-13 12:59:26,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:59:26,780 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 200 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:26,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 319 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:26,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-12-13 12:59:26,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1510. [2022-12-13 12:59:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 1.4665341285619615) internal successors, (2213), 1509 states have internal predecessors, (2213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2213 transitions. [2022-12-13 12:59:26,917 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2213 transitions. Word has length 53 [2022-12-13 12:59:26,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:26,917 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 2213 transitions. [2022-12-13 12:59:26,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:26,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2213 transitions. [2022-12-13 12:59:26,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 12:59:26,918 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:26,918 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] [2022-12-13 12:59:26,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:59:26,918 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:26,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:26,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2042230043, now seen corresponding path program 1 times [2022-12-13 12:59:26,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:26,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745196990] [2022-12-13 12:59:26,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:26,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:26,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:26,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:26,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745196990] [2022-12-13 12:59:26,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745196990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:26,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:26,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:59:26,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625955607] [2022-12-13 12:59:26,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:26,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:59:26,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:26,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:59:26,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:59:26,985 INFO L87 Difference]: Start difference. First operand 1510 states and 2213 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:27,166 INFO L93 Difference]: Finished difference Result 2992 states and 4398 transitions. [2022-12-13 12:59:27,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:59:27,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2022-12-13 12:59:27,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:27,173 INFO L225 Difference]: With dead ends: 2992 [2022-12-13 12:59:27,173 INFO L226 Difference]: Without dead ends: 1510 [2022-12-13 12:59:27,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:59:27,175 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 266 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:27,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 64 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2022-12-13 12:59:27,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1510. [2022-12-13 12:59:27,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 1.445328031809145) internal successors, (2181), 1509 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:27,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2181 transitions. [2022-12-13 12:59:27,300 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2181 transitions. Word has length 54 [2022-12-13 12:59:27,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:27,301 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 2181 transitions. [2022-12-13 12:59:27,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:27,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2181 transitions. [2022-12-13 12:59:27,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 12:59:27,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:27,301 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] [2022-12-13 12:59:27,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:59:27,302 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:27,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:27,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1489873546, now seen corresponding path program 1 times [2022-12-13 12:59:27,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:27,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606188283] [2022-12-13 12:59:27,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:27,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:27,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:27,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606188283] [2022-12-13 12:59:27,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606188283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:27,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:27,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:59:27,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182191408] [2022-12-13 12:59:27,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:27,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:59:27,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:27,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:59:27,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:59:27,365 INFO L87 Difference]: Start difference. First operand 1510 states and 2181 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:27,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:27,661 INFO L93 Difference]: Finished difference Result 2992 states and 4334 transitions. [2022-12-13 12:59:27,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:59:27,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2022-12-13 12:59:27,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:27,667 INFO L225 Difference]: With dead ends: 2992 [2022-12-13 12:59:27,667 INFO L226 Difference]: Without dead ends: 1510 [2022-12-13 12:59:27,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:59:27,670 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 250 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:27,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 72 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:27,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2022-12-13 12:59:27,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1510. [2022-12-13 12:59:27,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 1.4294234592445327) internal successors, (2157), 1509 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:27,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2157 transitions. [2022-12-13 12:59:27,886 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2157 transitions. Word has length 54 [2022-12-13 12:59:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:27,887 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 2157 transitions. [2022-12-13 12:59:27,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:27,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2157 transitions. [2022-12-13 12:59:27,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 12:59:27,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:27,888 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] [2022-12-13 12:59:27,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:59:27,888 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:27,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:27,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1617958853, now seen corresponding path program 1 times [2022-12-13 12:59:27,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:27,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123561576] [2022-12-13 12:59:27,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:27,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:27,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:27,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123561576] [2022-12-13 12:59:27,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123561576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:27,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:27,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:59:27,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505778034] [2022-12-13 12:59:27,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:27,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:59:27,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:27,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:59:27,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:59:27,968 INFO L87 Difference]: Start difference. First operand 1510 states and 2157 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:28,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:28,226 INFO L93 Difference]: Finished difference Result 2992 states and 4286 transitions. [2022-12-13 12:59:28,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:59:28,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2022-12-13 12:59:28,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:28,231 INFO L225 Difference]: With dead ends: 2992 [2022-12-13 12:59:28,231 INFO L226 Difference]: Without dead ends: 1510 [2022-12-13 12:59:28,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:59:28,234 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 234 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:28,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 80 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:28,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2022-12-13 12:59:28,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1510. [2022-12-13 12:59:28,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 1.4135188866799204) internal successors, (2133), 1509 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2133 transitions. [2022-12-13 12:59:28,441 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2133 transitions. Word has length 54 [2022-12-13 12:59:28,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:28,441 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 2133 transitions. [2022-12-13 12:59:28,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:28,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2133 transitions. [2022-12-13 12:59:28,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 12:59:28,442 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:28,442 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] [2022-12-13 12:59:28,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:59:28,442 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:28,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:28,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1811476054, now seen corresponding path program 1 times [2022-12-13 12:59:28,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:28,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303522822] [2022-12-13 12:59:28,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:28,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:28,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:28,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303522822] [2022-12-13 12:59:28,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303522822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:28,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:28,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:59:28,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782114980] [2022-12-13 12:59:28,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:28,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:59:28,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:28,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:59:28,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:59:28,587 INFO L87 Difference]: Start difference. First operand 1510 states and 2133 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:28,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:28,862 INFO L93 Difference]: Finished difference Result 2216 states and 3117 transitions. [2022-12-13 12:59:28,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:59:28,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2022-12-13 12:59:28,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:28,867 INFO L225 Difference]: With dead ends: 2216 [2022-12-13 12:59:28,867 INFO L226 Difference]: Without dead ends: 2214 [2022-12-13 12:59:28,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:59:28,868 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 133 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:28,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 447 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:28,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-12-13 12:59:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1542. [2022-12-13 12:59:29,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1541 states have (on average 1.3893575600259571) internal successors, (2141), 1541 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2141 transitions. [2022-12-13 12:59:29,029 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2141 transitions. Word has length 54 [2022-12-13 12:59:29,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:29,029 INFO L495 AbstractCegarLoop]: Abstraction has 1542 states and 2141 transitions. [2022-12-13 12:59:29,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:29,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2141 transitions. [2022-12-13 12:59:29,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 12:59:29,030 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:29,030 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 12:59:29,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:59:29,030 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:29,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1690284398, now seen corresponding path program 1 times [2022-12-13 12:59:29,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:29,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103196966] [2022-12-13 12:59:29,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:29,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 12:59:29,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:29,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103196966] [2022-12-13 12:59:29,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103196966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:29,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:29,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:59:29,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506887341] [2022-12-13 12:59:29,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:29,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:59:29,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:29,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:59:29,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:59:29,156 INFO L87 Difference]: Start difference. First operand 1542 states and 2141 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:30,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:30,035 INFO L93 Difference]: Finished difference Result 7366 states and 10257 transitions. [2022-12-13 12:59:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:59:30,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 76 [2022-12-13 12:59:30,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:30,046 INFO L225 Difference]: With dead ends: 7366 [2022-12-13 12:59:30,046 INFO L226 Difference]: Without dead ends: 6340 [2022-12-13 12:59:30,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:59:30,048 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 449 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:30,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 520 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:30,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2022-12-13 12:59:30,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 2814. [2022-12-13 12:59:30,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 1.3839317454674724) internal successors, (3893), 2813 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:30,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 3893 transitions. [2022-12-13 12:59:30,454 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 3893 transitions. Word has length 76 [2022-12-13 12:59:30,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:30,455 INFO L495 AbstractCegarLoop]: Abstraction has 2814 states and 3893 transitions. [2022-12-13 12:59:30,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 3893 transitions. [2022-12-13 12:59:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 12:59:30,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:30,456 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 12:59:30,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 12:59:30,456 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:30,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:30,456 INFO L85 PathProgramCache]: Analyzing trace with hash -34257664, now seen corresponding path program 1 times [2022-12-13 12:59:30,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:30,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948271054] [2022-12-13 12:59:30,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:30,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:30,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 12:59:30,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:30,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948271054] [2022-12-13 12:59:30,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948271054] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:30,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:30,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:59:30,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393169732] [2022-12-13 12:59:30,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:30,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:59:30,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:59:30,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:59:30,542 INFO L87 Difference]: Start difference. First operand 2814 states and 3893 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:31,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:31,581 INFO L93 Difference]: Finished difference Result 8878 states and 12353 transitions. [2022-12-13 12:59:31,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:59:31,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 76 [2022-12-13 12:59:31,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:31,598 INFO L225 Difference]: With dead ends: 8878 [2022-12-13 12:59:31,598 INFO L226 Difference]: Without dead ends: 7364 [2022-12-13 12:59:31,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:59:31,600 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 461 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:31,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 579 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:31,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7364 states. [2022-12-13 12:59:32,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7364 to 4822. [2022-12-13 12:59:32,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 4821 states have (on average 1.3816635552789878) internal successors, (6661), 4821 states have internal predecessors, (6661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:32,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 6661 transitions. [2022-12-13 12:59:32,255 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 6661 transitions. Word has length 76 [2022-12-13 12:59:32,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:32,256 INFO L495 AbstractCegarLoop]: Abstraction has 4822 states and 6661 transitions. [2022-12-13 12:59:32,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:32,256 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 6661 transitions. [2022-12-13 12:59:32,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 12:59:32,257 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:32,257 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 12:59:32,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 12:59:32,257 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:32,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:32,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1119688442, now seen corresponding path program 1 times [2022-12-13 12:59:32,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:32,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485361618] [2022-12-13 12:59:32,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:32,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 12:59:32,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:32,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485361618] [2022-12-13 12:59:32,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485361618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:32,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:32,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:59:32,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189183562] [2022-12-13 12:59:32,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:32,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:59:32,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:32,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:59:32,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:59:32,377 INFO L87 Difference]: Start difference. First operand 4822 states and 6661 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:33,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:33,790 INFO L93 Difference]: Finished difference Result 10390 states and 14441 transitions. [2022-12-13 12:59:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:59:33,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 76 [2022-12-13 12:59:33,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:33,801 INFO L225 Difference]: With dead ends: 10390 [2022-12-13 12:59:33,801 INFO L226 Difference]: Without dead ends: 8876 [2022-12-13 12:59:33,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:59:33,804 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 415 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:33,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 613 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:33,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8876 states. [2022-12-13 12:59:34,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8876 to 6334. [2022-12-13 12:59:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6334 states, 6333 states have (on average 1.3814937628296227) internal successors, (8749), 6333 states have internal predecessors, (8749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6334 states to 6334 states and 8749 transitions. [2022-12-13 12:59:34,722 INFO L78 Accepts]: Start accepts. Automaton has 6334 states and 8749 transitions. Word has length 76 [2022-12-13 12:59:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:34,722 INFO L495 AbstractCegarLoop]: Abstraction has 6334 states and 8749 transitions. [2022-12-13 12:59:34,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6334 states and 8749 transitions. [2022-12-13 12:59:34,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 12:59:34,724 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:34,724 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 12:59:34,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 12:59:34,724 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:34,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:34,724 INFO L85 PathProgramCache]: Analyzing trace with hash 261787764, now seen corresponding path program 1 times [2022-12-13 12:59:34,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:34,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875100117] [2022-12-13 12:59:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:34,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:34,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:59:34,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:34,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875100117] [2022-12-13 12:59:34,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875100117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:59:34,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:59:34,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:59:34,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523128680] [2022-12-13 12:59:34,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:59:34,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:59:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:34,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:59:34,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:59:34,809 INFO L87 Difference]: Start difference. First operand 6334 states and 8749 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:36,370 INFO L93 Difference]: Finished difference Result 11902 states and 16529 transitions. [2022-12-13 12:59:36,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:59:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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 76 [2022-12-13 12:59:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:36,382 INFO L225 Difference]: With dead ends: 11902 [2022-12-13 12:59:36,382 INFO L226 Difference]: Without dead ends: 10388 [2022-12-13 12:59:36,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:59:36,385 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 447 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:36,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 615 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:59:36,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10388 states. [2022-12-13 12:59:37,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10388 to 7846. [2022-12-13 12:59:37,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7846 states, 7845 states have (on average 1.381389420012747) internal successors, (10837), 7845 states have internal predecessors, (10837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7846 states to 7846 states and 10837 transitions. [2022-12-13 12:59:37,496 INFO L78 Accepts]: Start accepts. Automaton has 7846 states and 10837 transitions. Word has length 76 [2022-12-13 12:59:37,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:37,497 INFO L495 AbstractCegarLoop]: Abstraction has 7846 states and 10837 transitions. [2022-12-13 12:59:37,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:37,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7846 states and 10837 transitions. [2022-12-13 12:59:37,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-13 12:59:37,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:37,498 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 12:59:37,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 12:59:37,498 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:37,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:37,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2122663330, now seen corresponding path program 1 times [2022-12-13 12:59:37,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:37,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394369957] [2022-12-13 12:59:37,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:37,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:37,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:37,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394369957] [2022-12-13 12:59:37,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394369957] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:59:37,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535138772] [2022-12-13 12:59:37,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:37,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:59:37,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:59:37,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:59:37,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:59:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:37,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 12:59:37,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:59:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:38,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:59:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:38,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535138772] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:59:38,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:59:38,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 22 [2022-12-13 12:59:38,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134654345] [2022-12-13 12:59:38,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:59:38,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 12:59:38,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:59:38,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 12:59:38,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2022-12-13 12:59:38,997 INFO L87 Difference]: Start difference. First operand 7846 states and 10837 transitions. Second operand has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 22 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:55,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:59:55,079 INFO L93 Difference]: Finished difference Result 62631 states and 85863 transitions. [2022-12-13 12:59:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-12-13 12:59:55,080 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 22 states have internal predecessors, (172), 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 78 [2022-12-13 12:59:55,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:59:55,160 INFO L225 Difference]: With dead ends: 62631 [2022-12-13 12:59:55,160 INFO L226 Difference]: Without dead ends: 54813 [2022-12-13 12:59:55,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 140 SyntacticMatches, 2 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3965 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2701, Invalid=9509, Unknown=0, NotChecked=0, Total=12210 [2022-12-13 12:59:55,177 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 5351 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5351 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:59:55,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5351 Valid, 1242 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 12:59:55,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54813 states. [2022-12-13 12:59:59,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54813 to 17250. [2022-12-13 12:59:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17250 states, 17249 states have (on average 1.3742825671053394) internal successors, (23705), 17249 states have internal predecessors, (23705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:59,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17250 states to 17250 states and 23705 transitions. [2022-12-13 12:59:59,084 INFO L78 Accepts]: Start accepts. Automaton has 17250 states and 23705 transitions. Word has length 78 [2022-12-13 12:59:59,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:59:59,084 INFO L495 AbstractCegarLoop]: Abstraction has 17250 states and 23705 transitions. [2022-12-13 12:59:59,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 22 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:59:59,085 INFO L276 IsEmpty]: Start isEmpty. Operand 17250 states and 23705 transitions. [2022-12-13 12:59:59,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-13 12:59:59,087 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:59:59,087 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 12:59:59,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:59:59,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 12:59:59,289 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:59:59,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:59:59,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1826617902, now seen corresponding path program 1 times [2022-12-13 12:59:59,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:59:59,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910930748] [2022-12-13 12:59:59,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:59,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:59:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:59:59,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:59:59,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910930748] [2022-12-13 12:59:59,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910930748] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:59:59,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810546486] [2022-12-13 12:59:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:59:59,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:59:59,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:59:59,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:59:59,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:59:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:59:59,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 12:59:59,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:00:00,031 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:00:00,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:00:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:00:00,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810546486] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:00:00,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:00:00,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2022-12-13 13:00:00,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480288711] [2022-12-13 13:00:00,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:00:00,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 13:00:00,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:00:00,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 13:00:00,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-12-13 13:00:00,497 INFO L87 Difference]: Start difference. First operand 17250 states and 23705 transitions. Second operand has 23 states, 23 states have (on average 8.304347826086957) internal successors, (191), 22 states have internal predecessors, (191), 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 13:00:29,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:00:29,268 INFO L93 Difference]: Finished difference Result 111711 states and 151355 transitions. [2022-12-13 13:00:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-13 13:00:29,268 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.304347826086957) internal successors, (191), 22 states have internal predecessors, (191), 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 78 [2022-12-13 13:00:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:00:29,389 INFO L225 Difference]: With dead ends: 111711 [2022-12-13 13:00:29,389 INFO L226 Difference]: Without dead ends: 94489 [2022-12-13 13:00:29,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 798 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=974, Invalid=2566, Unknown=0, NotChecked=0, Total=3540 [2022-12-13 13:00:29,412 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 1618 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:00:29,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 879 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:00:29,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94489 states. [2022-12-13 13:00:41,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94489 to 41421. [2022-12-13 13:00:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41421 states, 41420 states have (on average 1.3704732013520038) internal successors, (56765), 41420 states have internal predecessors, (56765), 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 13:00:41,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41421 states to 41421 states and 56765 transitions. [2022-12-13 13:00:41,127 INFO L78 Accepts]: Start accepts. Automaton has 41421 states and 56765 transitions. Word has length 78 [2022-12-13 13:00:41,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:00:41,127 INFO L495 AbstractCegarLoop]: Abstraction has 41421 states and 56765 transitions. [2022-12-13 13:00:41,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.304347826086957) internal successors, (191), 22 states have internal predecessors, (191), 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 13:00:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 41421 states and 56765 transitions. [2022-12-13 13:00:41,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-13 13:00:41,130 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:00:41,130 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:00:41,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:00:41,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 13:00:41,331 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:00:41,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:00:41,331 INFO L85 PathProgramCache]: Analyzing trace with hash -518393884, now seen corresponding path program 1 times [2022-12-13 13:00:41,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:00:41,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936223106] [2022-12-13 13:00:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:00:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:00:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:00:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:00:41,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:00:41,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936223106] [2022-12-13 13:00:41,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936223106] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:00:41,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818952029] [2022-12-13 13:00:41,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:00:41,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:00:41,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:00:41,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:00:41,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09c08066-6bd8-44cc-bab3-8be16f6dd6fd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:00:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:00:41,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 13:00:41,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:00:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:00:42,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:00:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:00:43,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818952029] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:00:43,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:00:43,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2022-12-13 13:00:43,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506015289] [2022-12-13 13:00:43,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:00:43,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-13 13:00:43,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:00:43,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-13 13:00:43,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1143, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 13:00:43,252 INFO L87 Difference]: Start difference. First operand 41421 states and 56765 transitions. Second operand has 36 states, 36 states have (on average 5.694444444444445) internal successors, (205), 36 states have internal predecessors, (205), 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 13:10:45,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:10:45,950 INFO L93 Difference]: Finished difference Result 1054972 states and 1402545 transitions. [2022-12-13 13:10:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1836 states. [2022-12-13 13:10:45,951 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.694444444444445) internal successors, (205), 36 states have internal predecessors, (205), 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 78 [2022-12-13 13:10:45,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:10:48,161 INFO L225 Difference]: With dead ends: 1054972 [2022-12-13 13:10:48,161 INFO L226 Difference]: Without dead ends: 1013579 [2022-12-13 13:10:49,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2001 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1867 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1822640 ImplicationChecksByTransitivity, 177.2s TimeCoverageRelationStatistics Valid=240388, Invalid=3250904, Unknown=0, NotChecked=0, Total=3491292 [2022-12-13 13:10:49,000 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 50092 mSDsluCounter, 7535 mSDsCounter, 0 mSdLazyCounter, 10575 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50092 SdHoareTripleChecker+Valid, 7826 SdHoareTripleChecker+Invalid, 11371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 10575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:10:49,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50092 Valid, 7826 Invalid, 11371 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [796 Valid, 10575 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-12-13 13:10:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013579 states.