./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/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_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/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_07cbfd0b-53f7-45ca-806b-7a0bdad560da/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 11f2e72cb8a06a1896873093a1b872fd2dead3c7d91302c62d439cf7642b18a1 --- 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 18:48:41,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:48:41,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:48:41,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:48:41,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:48:41,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:48:41,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:48:41,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:48:41,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:48:41,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:48:41,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:48:41,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:48:41,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:48:41,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:48:41,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:48:41,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:48:41,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:48:41,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:48:41,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:48:41,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:48:41,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:48:41,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:48:41,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:48:41,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:48:41,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:48:41,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:48:41,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:48:41,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:48:41,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:48:41,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:48:41,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:48:41,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:48:41,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:48:41,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:48:41,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:48:41,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:48:41,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:48:41,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:48:41,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:48:41,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:48:41,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:48:41,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:48:41,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:48:41,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:48:41,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:48:41,998 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:48:41,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:48:41,999 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:48:41,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:48:41,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:48:41,999 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:48:41,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:48:42,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:48:42,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:48:42,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:48:42,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:48:42,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:48:42,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:48:42,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:48:42,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:48:42,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:48:42,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:48:42,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:48:42,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:48:42,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:48:42,002 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:48:42,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:48:42,002 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:48:42,002 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_07cbfd0b-53f7-45ca-806b-7a0bdad560da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11f2e72cb8a06a1896873093a1b872fd2dead3c7d91302c62d439cf7642b18a1 [2022-12-13 18:48:42,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:48:42,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:48:42,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:48:42,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:48:42,178 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:48:42,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label08.c [2022-12-13 18:48:44,743 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:48:45,073 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:48:45,073 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label08.c [2022-12-13 18:48:45,093 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/data/714ff3a33/678f332f951b44b8b9d9e6812060e208/FLAG6a2819cf5 [2022-12-13 18:48:45,107 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/data/714ff3a33/678f332f951b44b8b9d9e6812060e208 [2022-12-13 18:48:45,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:48:45,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:48:45,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:48:45,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:48:45,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:48:45,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:48:45" (1/1) ... [2022-12-13 18:48:45,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e205bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:45, skipping insertion in model container [2022-12-13 18:48:45,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:48:45" (1/1) ... [2022-12-13 18:48:45,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:48:45,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:48:45,481 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_07cbfd0b-53f7-45ca-806b-7a0bdad560da/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label08.c[8712,8725] [2022-12-13 18:48:45,521 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_07cbfd0b-53f7-45ca-806b-7a0bdad560da/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label08.c[12219,12232] [2022-12-13 18:48:46,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:48:46,110 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:48:46,129 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_07cbfd0b-53f7-45ca-806b-7a0bdad560da/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label08.c[8712,8725] [2022-12-13 18:48:46,134 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_07cbfd0b-53f7-45ca-806b-7a0bdad560da/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label08.c[12219,12232] [2022-12-13 18:48:46,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:48:46,512 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:48:46,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46 WrapperNode [2022-12-13 18:48:46,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:48:46,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:48:46,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:48:46,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:48:46,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:46,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:46,750 INFO L138 Inliner]: procedures = 36, calls = 21, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 5015 [2022-12-13 18:48:46,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:48:46,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:48:46,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:48:46,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:48:46,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:46,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:46,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:46,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:46,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:46,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:46,951 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:46,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:47,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:48:47,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:48:47,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:48:47,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:48:47,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (1/1) ... [2022-12-13 18:48:47,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:48:47,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:48:47,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:48:47,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:48:47,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:48:47,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:48:47,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:48:47,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:48:47,186 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:48:47,188 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:48:50,647 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:48:50,658 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:48:50,659 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 18:48:50,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:48:50 BoogieIcfgContainer [2022-12-13 18:48:50,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:48:50,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:48:50,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:48:50,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:48:50,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:48:45" (1/3) ... [2022-12-13 18:48:50,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f2b607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:48:50, skipping insertion in model container [2022-12-13 18:48:50,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:46" (2/3) ... [2022-12-13 18:48:50,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f2b607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:48:50, skipping insertion in model container [2022-12-13 18:48:50,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:48:50" (3/3) ... [2022-12-13 18:48:50,667 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label08.c [2022-12-13 18:48:50,680 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:48:50,680 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:48:50,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:48:50,731 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;@4715ec21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:48:50,731 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:48:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 887 states, 884 states have (on average 1.9049773755656108) internal successors, (1684), 886 states have internal predecessors, (1684), 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 18:48:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 18:48:50,742 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:50,742 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] [2022-12-13 18:48:50,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:50,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:50,746 INFO L85 PathProgramCache]: Analyzing trace with hash 593970293, now seen corresponding path program 1 times [2022-12-13 18:48:50,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:50,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956725112] [2022-12-13 18:48:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:50,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:50,878 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 18:48:50,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:50,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956725112] [2022-12-13 18:48:50,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956725112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:50,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:50,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:48:50,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193509100] [2022-12-13 18:48:50,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:50,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:48:50,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:50,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:48:50,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:48:50,909 INFO L87 Difference]: Start difference. First operand has 887 states, 884 states have (on average 1.9049773755656108) internal successors, (1684), 886 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 18:48:50,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:50,982 INFO L93 Difference]: Finished difference Result 1743 states and 3312 transitions. [2022-12-13 18:48:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:48:50,984 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2022-12-13 18:48:50,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:51,000 INFO L225 Difference]: With dead ends: 1743 [2022-12-13 18:48:51,000 INFO L226 Difference]: Without dead ends: 821 [2022-12-13 18:48:51,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:48:51,009 INFO L413 NwaCegarLoop]: 1615 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:51,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:51,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-12-13 18:48:51,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2022-12-13 18:48:51,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 819 states have (on average 1.8937728937728937) internal successors, (1551), 820 states have internal predecessors, (1551), 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 18:48:51,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1551 transitions. [2022-12-13 18:48:51,096 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1551 transitions. Word has length 22 [2022-12-13 18:48:51,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:51,096 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1551 transitions. [2022-12-13 18:48:51,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 18:48:51,097 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1551 transitions. [2022-12-13 18:48:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 18:48:51,097 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:51,097 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] [2022-12-13 18:48:51,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:48:51,098 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:51,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:51,099 INFO L85 PathProgramCache]: Analyzing trace with hash -427098061, now seen corresponding path program 1 times [2022-12-13 18:48:51,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:51,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450694643] [2022-12-13 18:48:51,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:51,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:51,224 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 18:48:51,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:51,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450694643] [2022-12-13 18:48:51,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450694643] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:51,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:51,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:48:51,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104663849] [2022-12-13 18:48:51,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:51,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:48:51,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:51,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:48:51,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:48:51,228 INFO L87 Difference]: Start difference. First operand 821 states and 1551 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 18:48:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:51,329 INFO L93 Difference]: Finished difference Result 863 states and 1615 transitions. [2022-12-13 18:48:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:48:51,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2022-12-13 18:48:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:51,332 INFO L225 Difference]: With dead ends: 863 [2022-12-13 18:48:51,333 INFO L226 Difference]: Without dead ends: 821 [2022-12-13 18:48:51,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:48:51,334 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 3 mSDsluCounter, 4621 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6170 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:51,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6170 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-12-13 18:48:51,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2022-12-13 18:48:51,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 819 states have (on average 1.8656898656898657) internal successors, (1528), 820 states have internal predecessors, (1528), 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 18:48:51,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1528 transitions. [2022-12-13 18:48:51,348 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1528 transitions. Word has length 22 [2022-12-13 18:48:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:51,348 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1528 transitions. [2022-12-13 18:48:51,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 18:48:51,349 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1528 transitions. [2022-12-13 18:48:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 18:48:51,349 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:51,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:48:51,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:48:51,350 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:51,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:51,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1055339155, now seen corresponding path program 1 times [2022-12-13 18:48:51,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:51,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907339369] [2022-12-13 18:48:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:51,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:51,404 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 18:48:51,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:51,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907339369] [2022-12-13 18:48:51,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907339369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:51,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:51,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:48:51,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912807980] [2022-12-13 18:48:51,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:51,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:48:51,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:51,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:48:51,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:48:51,407 INFO L87 Difference]: Start difference. First operand 821 states and 1528 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:48:54,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:54,350 INFO L93 Difference]: Finished difference Result 2325 states and 4401 transitions. [2022-12-13 18:48:54,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:48:54,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-12-13 18:48:54,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:54,354 INFO L225 Difference]: With dead ends: 2325 [2022-12-13 18:48:54,354 INFO L226 Difference]: Without dead ends: 1572 [2022-12-13 18:48:54,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:48:54,356 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 928 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:54,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 204 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-13 18:48:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-12-13 18:48:54,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1572. [2022-12-13 18:48:54,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1570 states have (on average 1.8261146496815286) internal successors, (2867), 1571 states have internal predecessors, (2867), 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 18:48:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2867 transitions. [2022-12-13 18:48:54,381 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2867 transitions. Word has length 30 [2022-12-13 18:48:54,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:54,381 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 2867 transitions. [2022-12-13 18:48:54,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:48:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2867 transitions. [2022-12-13 18:48:54,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 18:48:54,382 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:54,382 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] [2022-12-13 18:48:54,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:48:54,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:54,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash 3301806, now seen corresponding path program 1 times [2022-12-13 18:48:54,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:54,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908292895] [2022-12-13 18:48:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:54,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:54,502 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 18:48:54,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:54,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908292895] [2022-12-13 18:48:54,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908292895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:54,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:54,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:48:54,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6091403] [2022-12-13 18:48:54,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:54,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:48:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:54,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:48:54,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:48:54,505 INFO L87 Difference]: Start difference. First operand 1572 states and 2867 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 18:48:54,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:54,646 INFO L93 Difference]: Finished difference Result 1876 states and 3347 transitions. [2022-12-13 18:48:54,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:48:54,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2022-12-13 18:48:54,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:54,654 INFO L225 Difference]: With dead ends: 1876 [2022-12-13 18:48:54,654 INFO L226 Difference]: Without dead ends: 1838 [2022-12-13 18:48:54,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 18:48:54,656 INFO L413 NwaCegarLoop]: 1522 mSDtfsCounter, 6285 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6285 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:54,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6285 Valid, 2135 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:48:54,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2022-12-13 18:48:54,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1608. [2022-12-13 18:48:54,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1606 states have (on average 1.8206724782067247) internal successors, (2924), 1607 states have internal predecessors, (2924), 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 18:48:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2924 transitions. [2022-12-13 18:48:54,702 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2924 transitions. Word has length 44 [2022-12-13 18:48:54,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:54,702 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2924 transitions. [2022-12-13 18:48:54,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 18:48:54,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2924 transitions. [2022-12-13 18:48:54,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 18:48:54,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:54,704 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] [2022-12-13 18:48:54,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:48:54,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:54,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:54,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1757336638, now seen corresponding path program 1 times [2022-12-13 18:48:54,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:54,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094080751] [2022-12-13 18:48:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:54,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:54,762 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 18:48:54,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:54,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094080751] [2022-12-13 18:48:54,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094080751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:54,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:54,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:48:54,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25356731] [2022-12-13 18:48:54,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:54,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:48:54,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:54,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:48:54,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:48:54,765 INFO L87 Difference]: Start difference. First operand 1608 states and 2924 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 18:48:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:54,806 INFO L93 Difference]: Finished difference Result 1745 states and 3139 transitions. [2022-12-13 18:48:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:48:54,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2022-12-13 18:48:54,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:54,813 INFO L225 Difference]: With dead ends: 1745 [2022-12-13 18:48:54,813 INFO L226 Difference]: Without dead ends: 1671 [2022-12-13 18:48:54,814 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 18:48:54,815 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 1476 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:54,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1577 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:54,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-12-13 18:48:54,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1667. [2022-12-13 18:48:54,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.8102102102102102) internal successors, (3014), 1666 states have internal predecessors, (3014), 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 18:48:54,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 3014 transitions. [2022-12-13 18:48:54,872 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 3014 transitions. Word has length 46 [2022-12-13 18:48:54,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:54,872 INFO L495 AbstractCegarLoop]: Abstraction has 1667 states and 3014 transitions. [2022-12-13 18:48:54,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 18:48:54,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 3014 transitions. [2022-12-13 18:48:54,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 18:48:54,873 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:54,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:48:54,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:48:54,874 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:54,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:54,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1823830150, now seen corresponding path program 1 times [2022-12-13 18:48:54,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:54,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867541814] [2022-12-13 18:48:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:54,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:55,019 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 18:48:55,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:55,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867541814] [2022-12-13 18:48:55,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867541814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:55,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:55,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:48:55,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976516896] [2022-12-13 18:48:55,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:55,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:48:55,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:55,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:48:55,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:48:55,021 INFO L87 Difference]: Start difference. First operand 1667 states and 3014 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 18:48:55,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:55,128 INFO L93 Difference]: Finished difference Result 1802 states and 3222 transitions. [2022-12-13 18:48:55,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:48:55,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2022-12-13 18:48:55,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:55,134 INFO L225 Difference]: With dead ends: 1802 [2022-12-13 18:48:55,134 INFO L226 Difference]: Without dead ends: 1669 [2022-12-13 18:48:55,135 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 18:48:55,136 INFO L413 NwaCegarLoop]: 1522 mSDtfsCounter, 4455 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4455 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:55,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4455 Valid, 1693 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:55,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2022-12-13 18:48:55,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1667. [2022-12-13 18:48:55,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.809009009009009) internal successors, (3012), 1666 states have internal predecessors, (3012), 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 18:48:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 3012 transitions. [2022-12-13 18:48:55,185 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 3012 transitions. Word has length 46 [2022-12-13 18:48:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:55,185 INFO L495 AbstractCegarLoop]: Abstraction has 1667 states and 3012 transitions. [2022-12-13 18:48:55,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 18:48:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 3012 transitions. [2022-12-13 18:48:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-13 18:48:55,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:55,186 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 18:48:55,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:48:55,187 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:55,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:55,187 INFO L85 PathProgramCache]: Analyzing trace with hash 289436656, now seen corresponding path program 1 times [2022-12-13 18:48:55,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:55,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352158706] [2022-12-13 18:48:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:55,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:55,312 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 18:48:55,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:55,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352158706] [2022-12-13 18:48:55,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352158706] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:55,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:55,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:48:55,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181345467] [2022-12-13 18:48:55,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:55,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:48:55,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:55,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:48:55,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:48:55,314 INFO L87 Difference]: Start difference. First operand 1667 states and 3012 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 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 18:48:55,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:55,388 INFO L93 Difference]: Finished difference Result 1796 states and 3206 transitions. [2022-12-13 18:48:55,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:48:55,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 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 18:48:55,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:55,395 INFO L225 Difference]: With dead ends: 1796 [2022-12-13 18:48:55,395 INFO L226 Difference]: Without dead ends: 1794 [2022-12-13 18:48:55,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:48:55,396 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 151 mSDsluCounter, 4586 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 6164 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:55,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 6164 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:55,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2022-12-13 18:48:55,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1673. [2022-12-13 18:48:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1671 states have (on average 1.8055056852184321) internal successors, (3017), 1672 states have internal predecessors, (3017), 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 18:48:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 3017 transitions. [2022-12-13 18:48:55,432 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 3017 transitions. Word has length 47 [2022-12-13 18:48:55,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:55,432 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 3017 transitions. [2022-12-13 18:48:55,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 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 18:48:55,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 3017 transitions. [2022-12-13 18:48:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 18:48:55,433 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:55,433 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 18:48:55,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 18:48:55,433 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:55,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:55,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2036800602, now seen corresponding path program 1 times [2022-12-13 18:48:55,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:55,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119628447] [2022-12-13 18:48:55,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:55,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:55,471 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 18:48:55,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:55,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119628447] [2022-12-13 18:48:55,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119628447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:55,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:55,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:48:55,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573015398] [2022-12-13 18:48:55,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:55,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:48:55,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:55,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:48:55,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:48:55,473 INFO L87 Difference]: Start difference. First operand 1673 states and 3017 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 18:48:55,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:55,509 INFO L93 Difference]: Finished difference Result 1935 states and 3409 transitions. [2022-12-13 18:48:55,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:48:55,509 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 18:48:55,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:55,514 INFO L225 Difference]: With dead ends: 1935 [2022-12-13 18:48:55,514 INFO L226 Difference]: Without dead ends: 1796 [2022-12-13 18:48:55,514 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 18:48:55,515 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 1487 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:55,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1630 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:55,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2022-12-13 18:48:55,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1794. [2022-12-13 18:48:55,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1792 states have (on average 1.7823660714285714) internal successors, (3194), 1793 states have internal predecessors, (3194), 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 18:48:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 3194 transitions. [2022-12-13 18:48:55,568 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 3194 transitions. Word has length 48 [2022-12-13 18:48:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:55,568 INFO L495 AbstractCegarLoop]: Abstraction has 1794 states and 3194 transitions. [2022-12-13 18:48:55,568 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 18:48:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 3194 transitions. [2022-12-13 18:48:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 18:48:55,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:55,569 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 18:48:55,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:48:55,569 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:55,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:55,569 INFO L85 PathProgramCache]: Analyzing trace with hash 42697894, now seen corresponding path program 1 times [2022-12-13 18:48:55,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:55,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765611405] [2022-12-13 18:48:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:55,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:55,605 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 18:48:55,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:55,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765611405] [2022-12-13 18:48:55,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765611405] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:55,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:55,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:48:55,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215475754] [2022-12-13 18:48:55,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:55,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:48:55,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:55,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:48:55,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:48:55,607 INFO L87 Difference]: Start difference. First operand 1794 states and 3194 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 18:48:55,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:55,659 INFO L93 Difference]: Finished difference Result 2282 states and 3912 transitions. [2022-12-13 18:48:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:48:55,660 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 18:48:55,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:55,665 INFO L225 Difference]: With dead ends: 2282 [2022-12-13 18:48:55,665 INFO L226 Difference]: Without dead ends: 2022 [2022-12-13 18:48:55,666 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 18:48:55,667 INFO L413 NwaCegarLoop]: 1563 mSDtfsCounter, 1485 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:55,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1632 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-12-13 18:48:55,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2020. [2022-12-13 18:48:55,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 2018 states have (on average 1.7423191278493557) internal successors, (3516), 2019 states have internal predecessors, (3516), 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 18:48:55,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 3516 transitions. [2022-12-13 18:48:55,730 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 3516 transitions. Word has length 48 [2022-12-13 18:48:55,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:55,730 INFO L495 AbstractCegarLoop]: Abstraction has 2020 states and 3516 transitions. [2022-12-13 18:48:55,731 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 18:48:55,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 3516 transitions. [2022-12-13 18:48:55,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 18:48:55,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:55,731 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 18:48:55,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 18:48:55,731 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:55,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1823630758, now seen corresponding path program 1 times [2022-12-13 18:48:55,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:55,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767430103] [2022-12-13 18:48:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:55,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:55,763 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 18:48:55,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:55,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767430103] [2022-12-13 18:48:55,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767430103] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:55,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:55,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:48:55,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729424579] [2022-12-13 18:48:55,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:55,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:48:55,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:48:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:48:55,765 INFO L87 Difference]: Start difference. First operand 2020 states and 3516 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 18:48:55,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:55,869 INFO L93 Difference]: Finished difference Result 2928 states and 4822 transitions. [2022-12-13 18:48:55,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:48:55,870 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 18:48:55,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:55,878 INFO L225 Difference]: With dead ends: 2928 [2022-12-13 18:48:55,878 INFO L226 Difference]: Without dead ends: 2442 [2022-12-13 18:48:55,880 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 18:48:55,880 INFO L413 NwaCegarLoop]: 1561 mSDtfsCounter, 1483 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:55,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1634 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:55,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2022-12-13 18:48:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2440. [2022-12-13 18:48:55,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 2438 states have (on average 1.6800656275635768) internal successors, (4096), 2439 states have internal predecessors, (4096), 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 18:48:55,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 4096 transitions. [2022-12-13 18:48:55,989 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 4096 transitions. Word has length 48 [2022-12-13 18:48:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:55,989 INFO L495 AbstractCegarLoop]: Abstraction has 2440 states and 4096 transitions. [2022-12-13 18:48:55,990 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 18:48:55,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 4096 transitions. [2022-12-13 18:48:55,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 18:48:55,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:55,990 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 18:48:55,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 18:48:55,990 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:55,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:55,991 INFO L85 PathProgramCache]: Analyzing trace with hash 246335073, now seen corresponding path program 1 times [2022-12-13 18:48:55,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:55,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654211252] [2022-12-13 18:48:55,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:55,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:56,021 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 18:48:56,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:56,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654211252] [2022-12-13 18:48:56,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654211252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:56,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:56,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:48:56,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429596629] [2022-12-13 18:48:56,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:56,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:48:56,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:56,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:48:56,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:48:56,022 INFO L87 Difference]: Start difference. First operand 2440 states and 4096 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 18:48:56,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:56,132 INFO L93 Difference]: Finished difference Result 3407 states and 5494 transitions. [2022-12-13 18:48:56,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:48:56,132 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 18:48:56,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:56,138 INFO L225 Difference]: With dead ends: 3407 [2022-12-13 18:48:56,138 INFO L226 Difference]: Without dead ends: 2876 [2022-12-13 18:48:56,140 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 18:48:56,140 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 1486 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:56,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1631 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2022-12-13 18:48:56,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2874. [2022-12-13 18:48:56,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2872 states have (on average 1.6357938718662952) internal successors, (4698), 2873 states have internal predecessors, (4698), 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 18:48:56,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 4698 transitions. [2022-12-13 18:48:56,260 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 4698 transitions. Word has length 50 [2022-12-13 18:48:56,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:56,261 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 4698 transitions. [2022-12-13 18:48:56,261 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 18:48:56,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 4698 transitions. [2022-12-13 18:48:56,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 18:48:56,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:56,262 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:48:56,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 18:48:56,262 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:56,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:56,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1523853909, now seen corresponding path program 1 times [2022-12-13 18:48:56,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:56,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84663183] [2022-12-13 18:48:56,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:56,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:48:56,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:56,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84663183] [2022-12-13 18:48:56,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84663183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:56,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:56,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:48:56,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975883149] [2022-12-13 18:48:56,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:56,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:48:56,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:56,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:48:56,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:48:56,363 INFO L87 Difference]: Start difference. First operand 2874 states and 4698 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 18:48:56,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:56,926 INFO L93 Difference]: Finished difference Result 8524 states and 12655 transitions. [2022-12-13 18:48:56,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:48:56,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 65 [2022-12-13 18:48:56,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:56,942 INFO L225 Difference]: With dead ends: 8524 [2022-12-13 18:48:56,942 INFO L226 Difference]: Without dead ends: 7186 [2022-12-13 18:48:56,945 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 18:48:56,945 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 4663 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4663 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:56,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4663 Valid, 3368 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:48:56,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7186 states. [2022-12-13 18:48:57,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7186 to 4210. [2022-12-13 18:48:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4210 states, 4208 states have (on average 1.5594106463878328) internal successors, (6562), 4209 states have internal predecessors, (6562), 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 18:48:57,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4210 states to 4210 states and 6562 transitions. [2022-12-13 18:48:57,181 INFO L78 Accepts]: Start accepts. Automaton has 4210 states and 6562 transitions. Word has length 65 [2022-12-13 18:48:57,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:57,181 INFO L495 AbstractCegarLoop]: Abstraction has 4210 states and 6562 transitions. [2022-12-13 18:48:57,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 18:48:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 4210 states and 6562 transitions. [2022-12-13 18:48:57,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 18:48:57,182 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:57,182 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:48:57,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 18:48:57,182 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:57,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:57,183 INFO L85 PathProgramCache]: Analyzing trace with hash 555644587, now seen corresponding path program 1 times [2022-12-13 18:48:57,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:57,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438382283] [2022-12-13 18:48:57,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:57,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 18:48:57,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:57,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438382283] [2022-12-13 18:48:57,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438382283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:57,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:57,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:48:57,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889311533] [2022-12-13 18:48:57,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:57,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:48:57,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:57,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:48:57,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:48:57,268 INFO L87 Difference]: Start difference. First operand 4210 states and 6562 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 18:48:57,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:57,829 INFO L93 Difference]: Finished difference Result 9860 states and 14519 transitions. [2022-12-13 18:48:57,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:48:57,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 65 [2022-12-13 18:48:57,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:57,842 INFO L225 Difference]: With dead ends: 9860 [2022-12-13 18:48:57,843 INFO L226 Difference]: Without dead ends: 8522 [2022-12-13 18:48:57,846 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 18:48:57,846 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 4692 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4692 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:57,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4692 Valid, 3303 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:57,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8522 states. [2022-12-13 18:48:58,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8522 to 6218. [2022-12-13 18:48:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 1.5022522522522523) internal successors, (9338), 6217 states have internal predecessors, (9338), 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 18:48:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 9338 transitions. [2022-12-13 18:48:58,215 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 9338 transitions. Word has length 65 [2022-12-13 18:48:58,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:58,215 INFO L495 AbstractCegarLoop]: Abstraction has 6218 states and 9338 transitions. [2022-12-13 18:48:58,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 18:48:58,216 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 9338 transitions. [2022-12-13 18:48:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 18:48:58,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:58,217 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:48:58,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 18:48:58,217 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:58,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1958389845, now seen corresponding path program 1 times [2022-12-13 18:48:58,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:58,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914239424] [2022-12-13 18:48:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:58,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 18:48:58,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:58,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914239424] [2022-12-13 18:48:58,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914239424] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:58,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:58,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:48:58,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022280827] [2022-12-13 18:48:58,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:58,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:48:58,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:48:58,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:48:58,300 INFO L87 Difference]: Start difference. First operand 6218 states and 9338 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 18:48:58,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:58,963 INFO L93 Difference]: Finished difference Result 11196 states and 16383 transitions. [2022-12-13 18:48:58,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:48:58,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 65 [2022-12-13 18:48:58,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:58,975 INFO L225 Difference]: With dead ends: 11196 [2022-12-13 18:48:58,975 INFO L226 Difference]: Without dead ends: 9858 [2022-12-13 18:48:58,977 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 18:48:58,978 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 4677 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4677 SdHoareTripleChecker+Valid, 3324 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 18:48:58,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4677 Valid, 3324 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:58,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9858 states. [2022-12-13 18:48:59,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9858 to 7554. [2022-12-13 18:48:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7554 states, 7552 states have (on average 1.4833156779661016) internal successors, (11202), 7553 states have internal predecessors, (11202), 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 18:48:59,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7554 states to 7554 states and 11202 transitions. [2022-12-13 18:48:59,449 INFO L78 Accepts]: Start accepts. Automaton has 7554 states and 11202 transitions. Word has length 65 [2022-12-13 18:48:59,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:48:59,449 INFO L495 AbstractCegarLoop]: Abstraction has 7554 states and 11202 transitions. [2022-12-13 18:48:59,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 18:48:59,449 INFO L276 IsEmpty]: Start isEmpty. Operand 7554 states and 11202 transitions. [2022-12-13 18:48:59,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 18:48:59,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:48:59,450 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:48:59,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 18:48:59,450 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:48:59,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:48:59,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1188964029, now seen corresponding path program 1 times [2022-12-13 18:48:59,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:48:59,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277883192] [2022-12-13 18:48:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:48:59,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:48:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:59,506 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:48:59,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:48:59,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277883192] [2022-12-13 18:48:59,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277883192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:48:59,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:48:59,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:48:59,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115603998] [2022-12-13 18:48:59,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:48:59,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:48:59,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:48:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:48:59,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:48:59,508 INFO L87 Difference]: Start difference. First operand 7554 states and 11202 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 18:48:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:59,862 INFO L93 Difference]: Finished difference Result 11896 states and 17343 transitions. [2022-12-13 18:48:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:48:59,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2022-12-13 18:48:59,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:59,871 INFO L225 Difference]: With dead ends: 11896 [2022-12-13 18:48:59,871 INFO L226 Difference]: Without dead ends: 5878 [2022-12-13 18:48:59,875 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 18:48:59,875 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 42 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:59,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3073 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:48:59,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-12-13 18:49:00,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5876. [2022-12-13 18:49:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5876 states, 5874 states have (on average 1.5110657133129044) internal successors, (8876), 5875 states have internal predecessors, (8876), 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 18:49:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5876 states to 5876 states and 8876 transitions. [2022-12-13 18:49:00,246 INFO L78 Accepts]: Start accepts. Automaton has 5876 states and 8876 transitions. Word has length 67 [2022-12-13 18:49:00,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:00,246 INFO L495 AbstractCegarLoop]: Abstraction has 5876 states and 8876 transitions. [2022-12-13 18:49:00,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 18:49:00,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5876 states and 8876 transitions. [2022-12-13 18:49:00,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 18:49:00,247 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:00,247 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:00,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 18:49:00,248 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:49:00,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:00,248 INFO L85 PathProgramCache]: Analyzing trace with hash -733131994, now seen corresponding path program 1 times [2022-12-13 18:49:00,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:00,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775970311] [2022-12-13 18:49:00,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:00,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:49:00,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:00,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775970311] [2022-12-13 18:49:00,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775970311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:49:00,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:49:00,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:49:00,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864949631] [2022-12-13 18:49:00,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:49:00,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:49:00,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:00,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:49:00,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:49:00,335 INFO L87 Difference]: Start difference. First operand 5876 states and 8876 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 18:49:00,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:00,970 INFO L93 Difference]: Finished difference Result 9726 states and 14321 transitions. [2022-12-13 18:49:00,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:49:00,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 67 [2022-12-13 18:49:00,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:00,979 INFO L225 Difference]: With dead ends: 9726 [2022-12-13 18:49:00,979 INFO L226 Difference]: Without dead ends: 8764 [2022-12-13 18:49:00,981 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 18:49:00,981 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 4665 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4665 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:00,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4665 Valid, 3404 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:49:00,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8764 states. [2022-12-13 18:49:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8764 to 6836. [2022-12-13 18:49:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6836 states, 6834 states have (on average 1.495463857184665) internal successors, (10220), 6835 states have internal predecessors, (10220), 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 18:49:01,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6836 states to 6836 states and 10220 transitions. [2022-12-13 18:49:01,424 INFO L78 Accepts]: Start accepts. Automaton has 6836 states and 10220 transitions. Word has length 67 [2022-12-13 18:49:01,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:01,424 INFO L495 AbstractCegarLoop]: Abstraction has 6836 states and 10220 transitions. [2022-12-13 18:49:01,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 18:49:01,424 INFO L276 IsEmpty]: Start isEmpty. Operand 6836 states and 10220 transitions. [2022-12-13 18:49:01,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 18:49:01,426 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:01,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:01,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 18:49:01,426 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:49:01,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:01,426 INFO L85 PathProgramCache]: Analyzing trace with hash 548136257, now seen corresponding path program 1 times [2022-12-13 18:49:01,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:01,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357839071] [2022-12-13 18:49:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:01,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:01,482 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:01,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:01,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357839071] [2022-12-13 18:49:01,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357839071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:49:01,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:49:01,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:49:01,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159036210] [2022-12-13 18:49:01,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:49:01,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:49:01,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:01,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:49:01,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:49:01,483 INFO L87 Difference]: Start difference. First operand 6836 states and 10220 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 18:49:01,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:01,774 INFO L93 Difference]: Finished difference Result 9480 states and 13918 transitions. [2022-12-13 18:49:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:49:01,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2022-12-13 18:49:01,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:01,780 INFO L225 Difference]: With dead ends: 9480 [2022-12-13 18:49:01,780 INFO L226 Difference]: Without dead ends: 4198 [2022-12-13 18:49:01,783 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 18:49:01,784 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 37 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:01,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3058 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:49:01,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2022-12-13 18:49:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 4196. [2022-12-13 18:49:02,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4196 states, 4194 states have (on average 1.5450643776824033) internal successors, (6480), 4195 states have internal predecessors, (6480), 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 18:49:02,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4196 states to 4196 states and 6480 transitions. [2022-12-13 18:49:02,070 INFO L78 Accepts]: Start accepts. Automaton has 4196 states and 6480 transitions. Word has length 68 [2022-12-13 18:49:02,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:02,071 INFO L495 AbstractCegarLoop]: Abstraction has 4196 states and 6480 transitions. [2022-12-13 18:49:02,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 18:49:02,071 INFO L276 IsEmpty]: Start isEmpty. Operand 4196 states and 6480 transitions. [2022-12-13 18:49:02,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 18:49:02,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:02,072 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:02,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 18:49:02,072 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:49:02,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:02,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1967598547, now seen corresponding path program 1 times [2022-12-13 18:49:02,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:02,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371114496] [2022-12-13 18:49:02,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:02,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:02,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:02,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371114496] [2022-12-13 18:49:02,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371114496] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:49:02,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:49:02,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:49:02,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720032958] [2022-12-13 18:49:02,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:49:02,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:49:02,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:02,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:49:02,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:49:02,124 INFO L87 Difference]: Start difference. First operand 4196 states and 6480 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 18:49:02,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:02,253 INFO L93 Difference]: Finished difference Result 5520 states and 8308 transitions. [2022-12-13 18:49:02,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:49:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-12-13 18:49:02,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:02,256 INFO L225 Difference]: With dead ends: 5520 [2022-12-13 18:49:02,256 INFO L226 Difference]: Without dead ends: 2878 [2022-12-13 18:49:02,258 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 18:49:02,258 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 34 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:02,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3043 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:49:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2022-12-13 18:49:02,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2876. [2022-12-13 18:49:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2874 states have (on average 1.6116910229645094) internal successors, (4632), 2875 states have internal predecessors, (4632), 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 18:49:02,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 4632 transitions. [2022-12-13 18:49:02,391 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 4632 transitions. Word has length 70 [2022-12-13 18:49:02,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:02,391 INFO L495 AbstractCegarLoop]: Abstraction has 2876 states and 4632 transitions. [2022-12-13 18:49:02,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 18:49:02,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 4632 transitions. [2022-12-13 18:49:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-13 18:49:02,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:02,392 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:02,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 18:49:02,392 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:49:02,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:02,392 INFO L85 PathProgramCache]: Analyzing trace with hash -673918747, now seen corresponding path program 1 times [2022-12-13 18:49:02,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:02,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599771845] [2022-12-13 18:49:02,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:02,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:02,439 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:02,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:02,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599771845] [2022-12-13 18:49:02,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599771845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:49:02,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:49:02,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:49:02,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396163324] [2022-12-13 18:49:02,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:49:02,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:49:02,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:02,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:49:02,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:49:02,440 INFO L87 Difference]: Start difference. First operand 2876 states and 4632 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 18:49:02,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:02,530 INFO L93 Difference]: Finished difference Result 3540 states and 5536 transitions. [2022-12-13 18:49:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:49:02,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 72 [2022-12-13 18:49:02,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:02,534 INFO L225 Difference]: With dead ends: 3540 [2022-12-13 18:49:02,534 INFO L226 Difference]: Without dead ends: 2218 [2022-12-13 18:49:02,535 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 18:49:02,536 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 31 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:02,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3028 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:49:02,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2022-12-13 18:49:02,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2216. [2022-12-13 18:49:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 2214 states have (on average 1.679765130984643) internal successors, (3719), 2215 states have internal predecessors, (3719), 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 18:49:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 3719 transitions. [2022-12-13 18:49:02,647 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 3719 transitions. Word has length 72 [2022-12-13 18:49:02,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:02,648 INFO L495 AbstractCegarLoop]: Abstraction has 2216 states and 3719 transitions. [2022-12-13 18:49:02,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 18:49:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 3719 transitions. [2022-12-13 18:49:02,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-13 18:49:02,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:02,649 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:02,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 18:49:02,649 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:49:02,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:02,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1516893303, now seen corresponding path program 1 times [2022-12-13 18:49:02,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:02,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368643187] [2022-12-13 18:49:02,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:02,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:03,475 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:03,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:03,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368643187] [2022-12-13 18:49:03,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368643187] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:49:03,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601515844] [2022-12-13 18:49:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:03,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:49:03,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:49:03,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:49:03,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 18:49:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:03,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 18:49:03,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:49:03,796 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:49:03,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:49:03,940 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:49:03,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601515844] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:49:03,941 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:49:03,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2022-12-13 18:49:03,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622264601] [2022-12-13 18:49:03,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:49:03,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 18:49:03,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:03,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 18:49:03,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-12-13 18:49:03,943 INFO L87 Difference]: Start difference. First operand 2216 states and 3719 transitions. Second operand has 19 states, 19 states have (on average 10.789473684210526) internal successors, (205), 19 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 18:49:07,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:07,541 INFO L93 Difference]: Finished difference Result 8951 states and 12504 transitions. [2022-12-13 18:49:07,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 18:49:07,542 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 10.789473684210526) internal successors, (205), 19 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 74 [2022-12-13 18:49:07,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:07,547 INFO L225 Difference]: With dead ends: 8951 [2022-12-13 18:49:07,547 INFO L226 Difference]: Without dead ends: 8289 [2022-12-13 18:49:07,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1550 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=868, Invalid=4102, Unknown=0, NotChecked=0, Total=4970 [2022-12-13 18:49:07,550 INFO L413 NwaCegarLoop]: 1514 mSDtfsCounter, 13742 mSDsluCounter, 7805 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13742 SdHoareTripleChecker+Valid, 9319 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:07,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13742 Valid, 9319 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 18:49:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8289 states. [2022-12-13 18:49:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8289 to 6369. [2022-12-13 18:49:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6369 states, 6367 states have (on average 1.4097691220354955) internal successors, (8976), 6368 states have internal predecessors, (8976), 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 18:49:08,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6369 states to 6369 states and 8976 transitions. [2022-12-13 18:49:08,093 INFO L78 Accepts]: Start accepts. Automaton has 6369 states and 8976 transitions. Word has length 74 [2022-12-13 18:49:08,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:08,094 INFO L495 AbstractCegarLoop]: Abstraction has 6369 states and 8976 transitions. [2022-12-13 18:49:08,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.789473684210526) internal successors, (205), 19 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 18:49:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6369 states and 8976 transitions. [2022-12-13 18:49:08,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 18:49:08,094 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:08,095 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:08,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:49:08,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:49:08,297 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:49:08,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1010952072, now seen corresponding path program 1 times [2022-12-13 18:49:08,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:08,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181285711] [2022-12-13 18:49:08,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:08,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:08,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:08,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181285711] [2022-12-13 18:49:08,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181285711] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:49:08,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558513693] [2022-12-13 18:49:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:08,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:49:08,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:49:08,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:49:08,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 18:49:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:08,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 18:49:08,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:49:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:08,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:49:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:09,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558513693] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:49:09,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:49:09,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-12-13 18:49:09,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614413118] [2022-12-13 18:49:09,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:49:09,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 18:49:09,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:09,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 18:49:09,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-12-13 18:49:09,584 INFO L87 Difference]: Start difference. First operand 6369 states and 8976 transitions. Second operand has 24 states, 24 states have (on average 7.625) internal successors, (183), 23 states have internal predecessors, (183), 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 18:49:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:13,959 INFO L93 Difference]: Finished difference Result 29606 states and 38964 transitions. [2022-12-13 18:49:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-13 18:49:13,959 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.625) internal successors, (183), 23 states have internal predecessors, (183), 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 75 [2022-12-13 18:49:13,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:13,980 INFO L225 Difference]: With dead ends: 29606 [2022-12-13 18:49:13,981 INFO L226 Difference]: Without dead ends: 24833 [2022-12-13 18:49:13,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=627, Invalid=2343, Unknown=0, NotChecked=0, Total=2970 [2022-12-13 18:49:13,986 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 19381 mSDsluCounter, 8165 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19381 SdHoareTripleChecker+Valid, 9709 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:13,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19381 Valid, 9709 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 18:49:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24833 states. [2022-12-13 18:49:16,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24833 to 18755. [2022-12-13 18:49:16,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18755 states, 18753 states have (on average 1.2973924172132458) internal successors, (24330), 18754 states have internal predecessors, (24330), 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 18:49:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18755 states to 18755 states and 24330 transitions. [2022-12-13 18:49:16,364 INFO L78 Accepts]: Start accepts. Automaton has 18755 states and 24330 transitions. Word has length 75 [2022-12-13 18:49:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:16,364 INFO L495 AbstractCegarLoop]: Abstraction has 18755 states and 24330 transitions. [2022-12-13 18:49:16,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.625) internal successors, (183), 23 states have internal predecessors, (183), 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 18:49:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 18755 states and 24330 transitions. [2022-12-13 18:49:16,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 18:49:16,365 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:16,365 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:16,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 18:49:16,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-13 18:49:16,567 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:49:16,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:16,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2028388102, now seen corresponding path program 1 times [2022-12-13 18:49:16,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:16,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25301139] [2022-12-13 18:49:16,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:16,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:16,786 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:16,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:16,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25301139] [2022-12-13 18:49:16,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25301139] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:49:16,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625184699] [2022-12-13 18:49:16,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:16,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:49:16,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:49:16,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:49:16,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 18:49:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:16,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 18:49:16,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:49:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:17,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:49:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:17,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625184699] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:49:17,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:49:17,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2022-12-13 18:49:17,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284090571] [2022-12-13 18:49:17,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:49:17,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 18:49:17,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:17,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 18:49:17,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-12-13 18:49:17,877 INFO L87 Difference]: Start difference. First operand 18755 states and 24330 transitions. Second operand has 23 states, 23 states have (on average 7.782608695652174) internal successors, (179), 22 states have internal predecessors, (179), 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 18:49:21,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:21,925 INFO L93 Difference]: Finished difference Result 38350 states and 48271 transitions. [2022-12-13 18:49:21,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:49:21,926 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.782608695652174) internal successors, (179), 22 states have internal predecessors, (179), 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 75 [2022-12-13 18:49:21,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:21,946 INFO L225 Difference]: With dead ends: 38350 [2022-12-13 18:49:21,946 INFO L226 Difference]: Without dead ends: 24049 [2022-12-13 18:49:21,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 18:49:21,955 INFO L413 NwaCegarLoop]: 1514 mSDtfsCounter, 15352 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15352 SdHoareTripleChecker+Valid, 6156 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:21,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15352 Valid, 6156 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 18:49:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24049 states. [2022-12-13 18:49:24,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24049 to 18051. [2022-12-13 18:49:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18051 states, 18049 states have (on average 1.2826195357083494) internal successors, (23150), 18050 states have internal predecessors, (23150), 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 18:49:24,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18051 states to 18051 states and 23150 transitions. [2022-12-13 18:49:24,725 INFO L78 Accepts]: Start accepts. Automaton has 18051 states and 23150 transitions. Word has length 75 [2022-12-13 18:49:24,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:24,725 INFO L495 AbstractCegarLoop]: Abstraction has 18051 states and 23150 transitions. [2022-12-13 18:49:24,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.782608695652174) internal successors, (179), 22 states have internal predecessors, (179), 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 18:49:24,725 INFO L276 IsEmpty]: Start isEmpty. Operand 18051 states and 23150 transitions. [2022-12-13 18:49:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 18:49:24,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:24,726 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:24,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 18:49:24,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-13 18:49:24,927 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:49:24,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:24,928 INFO L85 PathProgramCache]: Analyzing trace with hash -268185879, now seen corresponding path program 1 times [2022-12-13 18:49:24,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:24,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028462675] [2022-12-13 18:49:24,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:24,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:25,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:25,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028462675] [2022-12-13 18:49:25,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028462675] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:49:25,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072079463] [2022-12-13 18:49:25,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:25,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:49:25,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:49:25,189 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:49:25,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 18:49:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:25,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 18:49:25,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:49:25,893 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:25,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:49:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:26,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072079463] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:49:26,607 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:49:26,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 28 [2022-12-13 18:49:26,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354035742] [2022-12-13 18:49:26,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:49:26,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 18:49:26,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:26,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 18:49:26,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2022-12-13 18:49:26,608 INFO L87 Difference]: Start difference. First operand 18051 states and 23150 transitions. Second operand has 28 states, 28 states have (on average 7.0) internal successors, (196), 28 states have internal predecessors, (196), 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 18:49:36,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:36,317 INFO L93 Difference]: Finished difference Result 61522 states and 76448 transitions. [2022-12-13 18:49:36,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 18:49:36,318 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.0) internal successors, (196), 28 states have internal predecessors, (196), 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 18:49:36,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:36,366 INFO L225 Difference]: With dead ends: 61522 [2022-12-13 18:49:36,366 INFO L226 Difference]: Without dead ends: 47241 [2022-12-13 18:49:36,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=451, Invalid=1441, Unknown=0, NotChecked=0, Total=1892 [2022-12-13 18:49:36,381 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 9372 mSDsluCounter, 6728 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9372 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:36,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9372 Valid, 8265 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 18:49:36,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47241 states. [2022-12-13 18:49:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47241 to 34587. [2022-12-13 18:49:42,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34587 states, 34585 states have (on average 1.2450484314008963) internal successors, (43060), 34586 states have internal predecessors, (43060), 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 18:49:42,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34587 states to 34587 states and 43060 transitions. [2022-12-13 18:49:42,747 INFO L78 Accepts]: Start accepts. Automaton has 34587 states and 43060 transitions. Word has length 76 [2022-12-13 18:49:42,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:42,747 INFO L495 AbstractCegarLoop]: Abstraction has 34587 states and 43060 transitions. [2022-12-13 18:49:42,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.0) internal successors, (196), 28 states have internal predecessors, (196), 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 18:49:42,747 INFO L276 IsEmpty]: Start isEmpty. Operand 34587 states and 43060 transitions. [2022-12-13 18:49:42,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 18:49:42,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:42,749 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:42,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 18:49:42,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-13 18:49:42,950 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:49:42,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:42,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1113650506, now seen corresponding path program 1 times [2022-12-13 18:49:42,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:42,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003509641] [2022-12-13 18:49:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:42,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:43,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003509641] [2022-12-13 18:49:43,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003509641] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:49:43,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005494587] [2022-12-13 18:49:43,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:43,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:49:43,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:49:43,635 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:49:43,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 18:49:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:43,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 18:49:43,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:49:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:44,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:49:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:46,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005494587] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:49:46,476 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:49:46,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 16] total 40 [2022-12-13 18:49:46,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861676837] [2022-12-13 18:49:46,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:49:46,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-13 18:49:46,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:46,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-13 18:49:46,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1398, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 18:49:46,478 INFO L87 Difference]: Start difference. First operand 34587 states and 43060 transitions. Second operand has 40 states, 40 states have (on average 5.375) internal successors, (215), 40 states have internal predecessors, (215), 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 18:50:21,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:50:21,668 INFO L93 Difference]: Finished difference Result 90758 states and 110385 transitions. [2022-12-13 18:50:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 18:50:21,669 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.375) internal successors, (215), 40 states have internal predecessors, (215), 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 77 [2022-12-13 18:50:21,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:50:21,748 INFO L225 Difference]: With dead ends: 90758 [2022-12-13 18:50:21,748 INFO L226 Difference]: Without dead ends: 73248 [2022-12-13 18:50:21,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 122 SyntacticMatches, 5 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9568 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=5342, Invalid=20098, Unknown=0, NotChecked=0, Total=25440 [2022-12-13 18:50:21,771 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 19607 mSDsluCounter, 26207 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19607 SdHoareTripleChecker+Valid, 27837 SdHoareTripleChecker+Invalid, 2533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:50:21,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19607 Valid, 27837 Invalid, 2533 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [114 Valid, 2419 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 18:50:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73248 states. [2022-12-13 18:50:29,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73248 to 27904. [2022-12-13 18:50:29,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27904 states, 27902 states have (on average 1.2476166583040642) internal successors, (34811), 27903 states have internal predecessors, (34811), 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 18:50:29,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27904 states to 27904 states and 34811 transitions. [2022-12-13 18:50:29,082 INFO L78 Accepts]: Start accepts. Automaton has 27904 states and 34811 transitions. Word has length 77 [2022-12-13 18:50:29,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:50:29,082 INFO L495 AbstractCegarLoop]: Abstraction has 27904 states and 34811 transitions. [2022-12-13 18:50:29,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.375) internal successors, (215), 40 states have internal predecessors, (215), 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 18:50:29,083 INFO L276 IsEmpty]: Start isEmpty. Operand 27904 states and 34811 transitions. [2022-12-13 18:50:29,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 18:50:29,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:50:29,084 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:50:29,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 18:50:29,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-13 18:50:29,285 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:50:29,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:50:29,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1164449718, now seen corresponding path program 1 times [2022-12-13 18:50:29,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:50:29,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384880796] [2022-12-13 18:50:29,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:50:29,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:50:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:30,527 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:50:30,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:50:30,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384880796] [2022-12-13 18:50:30,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384880796] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:50:30,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736704559] [2022-12-13 18:50:30,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:50:30,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:50:30,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:50:30,529 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:50:30,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 18:50:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:30,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 18:50:30,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:50:31,279 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:50:31,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:50:33,582 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:50:33,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736704559] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:50:33,582 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:50:33,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 12] total 39 [2022-12-13 18:50:33,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159247687] [2022-12-13 18:50:33,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:50:33,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-12-13 18:50:33,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:50:33,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-12-13 18:50:33,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1351, Unknown=0, NotChecked=0, Total=1482 [2022-12-13 18:50:33,585 INFO L87 Difference]: Start difference. First operand 27904 states and 34811 transitions. Second operand has 39 states, 39 states have (on average 4.9743589743589745) internal successors, (194), 39 states have internal predecessors, (194), 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 18:51:37,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:51:37,801 INFO L93 Difference]: Finished difference Result 83748 states and 102751 transitions. [2022-12-13 18:51:37,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-12-13 18:51:37,802 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.9743589743589745) internal successors, (194), 39 states have internal predecessors, (194), 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 77 [2022-12-13 18:51:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:51:37,873 INFO L225 Difference]: With dead ends: 83748 [2022-12-13 18:51:37,873 INFO L226 Difference]: Without dead ends: 68654 [2022-12-13 18:51:37,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 127 SyntacticMatches, 7 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27503 ImplicationChecksByTransitivity, 37.6s TimeCoverageRelationStatistics Valid=10094, Invalid=55186, Unknown=0, NotChecked=0, Total=65280 [2022-12-13 18:51:37,897 INFO L413 NwaCegarLoop]: 1693 mSDtfsCounter, 17100 mSDsluCounter, 26741 mSDsCounter, 0 mSdLazyCounter, 4737 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17100 SdHoareTripleChecker+Valid, 28434 SdHoareTripleChecker+Invalid, 4840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 4737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:51:37,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17100 Valid, 28434 Invalid, 4840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 4737 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-13 18:51:37,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68654 states. [2022-12-13 18:51:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68654 to 26342. [2022-12-13 18:51:46,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26342 states, 26340 states have (on average 1.2485952923310555) internal successors, (32888), 26341 states have internal predecessors, (32888), 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 18:51:46,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26342 states to 26342 states and 32888 transitions. [2022-12-13 18:51:46,302 INFO L78 Accepts]: Start accepts. Automaton has 26342 states and 32888 transitions. Word has length 77 [2022-12-13 18:51:46,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:51:46,302 INFO L495 AbstractCegarLoop]: Abstraction has 26342 states and 32888 transitions. [2022-12-13 18:51:46,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.9743589743589745) internal successors, (194), 39 states have internal predecessors, (194), 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 18:51:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 26342 states and 32888 transitions. [2022-12-13 18:51:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 18:51:46,303 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:51:46,304 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:51:46,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 18:51:46,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 18:51:46,505 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:51:46,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:51:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1650632284, now seen corresponding path program 1 times [2022-12-13 18:51:46,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:51:46,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447854735] [2022-12-13 18:51:46,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:51:46,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:51:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:51:46,938 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:51:46,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:51:46,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447854735] [2022-12-13 18:51:46,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447854735] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:51:46,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408951540] [2022-12-13 18:51:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:51:46,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:51:46,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:51:46,939 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:51:46,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 18:51:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:51:47,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 18:51:47,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:51:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:51:48,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:51:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:51:51,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408951540] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:51:51,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:51:51,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 17] total 41 [2022-12-13 18:51:51,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375223227] [2022-12-13 18:51:51,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:51:51,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-13 18:51:51,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:51:51,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-13 18:51:51,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1427, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 18:51:51,494 INFO L87 Difference]: Start difference. First operand 26342 states and 32888 transitions. Second operand has 41 states, 41 states have (on average 4.902439024390244) internal successors, (201), 41 states have internal predecessors, (201), 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 18:52:51,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:52:51,198 INFO L93 Difference]: Finished difference Result 93300 states and 115560 transitions. [2022-12-13 18:52:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2022-12-13 18:52:51,199 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 4.902439024390244) internal successors, (201), 41 states have internal predecessors, (201), 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 79 [2022-12-13 18:52:51,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:52:51,284 INFO L225 Difference]: With dead ends: 93300 [2022-12-13 18:52:51,284 INFO L226 Difference]: Without dead ends: 81237 [2022-12-13 18:52:51,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14493 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=6664, Invalid=31556, Unknown=0, NotChecked=0, Total=38220 [2022-12-13 18:52:51,304 INFO L413 NwaCegarLoop]: 1645 mSDtfsCounter, 6947 mSDsluCounter, 28691 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6947 SdHoareTripleChecker+Valid, 30336 SdHoareTripleChecker+Invalid, 2736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:52:51,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6947 Valid, 30336 Invalid, 2736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [132 Valid, 2604 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 18:52:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81237 states. [2022-12-13 18:52:58,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81237 to 18301. [2022-12-13 18:52:58,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18301 states, 18299 states have (on average 1.2641127930488005) internal successors, (23132), 18300 states have internal predecessors, (23132), 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 18:52:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18301 states to 18301 states and 23132 transitions. [2022-12-13 18:52:58,250 INFO L78 Accepts]: Start accepts. Automaton has 18301 states and 23132 transitions. Word has length 79 [2022-12-13 18:52:58,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:52:58,250 INFO L495 AbstractCegarLoop]: Abstraction has 18301 states and 23132 transitions. [2022-12-13 18:52:58,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.902439024390244) internal successors, (201), 41 states have internal predecessors, (201), 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 18:52:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 18301 states and 23132 transitions. [2022-12-13 18:52:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 18:52:58,251 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:52:58,251 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:52:58,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 18:52:58,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:52:58,453 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:52:58,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:52:58,454 INFO L85 PathProgramCache]: Analyzing trace with hash 382349619, now seen corresponding path program 1 times [2022-12-13 18:52:58,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:52:58,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291064821] [2022-12-13 18:52:58,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:52:58,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:52:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:52:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:52:58,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:52:58,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291064821] [2022-12-13 18:52:58,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291064821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:52:58,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:52:58,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:52:58,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225515433] [2022-12-13 18:52:58,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:52:58,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:52:58,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:52:58,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:52:58,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:52:58,557 INFO L87 Difference]: Start difference. First operand 18301 states and 23132 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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 18:53:11,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:53:11,458 INFO L93 Difference]: Finished difference Result 22058 states and 30022 transitions. [2022-12-13 18:53:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:53:11,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2022-12-13 18:53:11,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:53:11,477 INFO L225 Difference]: With dead ends: 22058 [2022-12-13 18:53:11,477 INFO L226 Difference]: Without dead ends: 20554 [2022-12-13 18:53:11,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:53:11,481 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 2353 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2353 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:53:11,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2353 Valid, 800 Invalid, 6302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1148 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-12-13 18:53:11,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20554 states. [2022-12-13 18:53:18,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20554 to 20554. [2022-12-13 18:53:18,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20554 states, 20552 states have (on average 1.277783184118334) internal successors, (26261), 20553 states have internal predecessors, (26261), 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 18:53:18,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20554 states to 20554 states and 26261 transitions. [2022-12-13 18:53:18,384 INFO L78 Accepts]: Start accepts. Automaton has 20554 states and 26261 transitions. Word has length 99 [2022-12-13 18:53:18,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:53:18,384 INFO L495 AbstractCegarLoop]: Abstraction has 20554 states and 26261 transitions. [2022-12-13 18:53:18,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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 18:53:18,384 INFO L276 IsEmpty]: Start isEmpty. Operand 20554 states and 26261 transitions. [2022-12-13 18:53:18,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 18:53:18,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:53:18,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:53:18,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 18:53:18,386 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:53:18,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:53:18,386 INFO L85 PathProgramCache]: Analyzing trace with hash 951130424, now seen corresponding path program 1 times [2022-12-13 18:53:18,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:53:18,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475634339] [2022-12-13 18:53:18,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:53:18,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:53:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:53:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 18:53:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:53:18,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475634339] [2022-12-13 18:53:18,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475634339] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:53:18,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:53:18,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:53:18,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743095165] [2022-12-13 18:53:18,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:53:18,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:53:18,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:53:18,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:53:18,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:53:18,427 INFO L87 Difference]: Start difference. First operand 20554 states and 26261 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:53:28,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:53:28,824 INFO L93 Difference]: Finished difference Result 27315 states and 37313 transitions. [2022-12-13 18:53:28,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:53:28,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-12-13 18:53:28,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:53:28,844 INFO L225 Difference]: With dead ends: 27315 [2022-12-13 18:53:28,844 INFO L226 Difference]: Without dead ends: 23558 [2022-12-13 18:53:28,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:53:28,850 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 814 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:53:28,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 563 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 18:53:28,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23558 states. [2022-12-13 18:53:36,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23558 to 23558. [2022-12-13 18:53:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23558 states, 23556 states have (on average 1.2729240957717778) internal successors, (29985), 23557 states have internal predecessors, (29985), 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 18:53:36,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23558 states to 23558 states and 29985 transitions. [2022-12-13 18:53:36,184 INFO L78 Accepts]: Start accepts. Automaton has 23558 states and 29985 transitions. Word has length 101 [2022-12-13 18:53:36,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:53:36,184 INFO L495 AbstractCegarLoop]: Abstraction has 23558 states and 29985 transitions. [2022-12-13 18:53:36,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:53:36,184 INFO L276 IsEmpty]: Start isEmpty. Operand 23558 states and 29985 transitions. [2022-12-13 18:53:36,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-13 18:53:36,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:53:36,186 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:53:36,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 18:53:36,187 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:53:36,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:53:36,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2006423867, now seen corresponding path program 1 times [2022-12-13 18:53:36,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:53:36,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688815244] [2022-12-13 18:53:36,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:53:36,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:53:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:53:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 22 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:53:36,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:53:36,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688815244] [2022-12-13 18:53:36,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688815244] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:53:36,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096431275] [2022-12-13 18:53:36,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:53:36,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:53:36,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:53:36,824 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:53:36,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cbfd0b-53f7-45ca-806b-7a0bdad560da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 18:53:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:53:36,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 18:53:36,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:53:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 33 proven. 72 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:53:43,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:53:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 31 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:53:45,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096431275] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:53:45,829 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:53:45,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 39 [2022-12-13 18:53:45,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624544907] [2022-12-13 18:53:45,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:53:45,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-13 18:53:45,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:53:45,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-13 18:53:45,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1418, Unknown=3, NotChecked=0, Total=1560 [2022-12-13 18:53:45,830 INFO L87 Difference]: Start difference. First operand 23558 states and 29985 transitions. Second operand has 40 states, 40 states have (on average 8.625) internal successors, (345), 39 states have internal predecessors, (345), 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 18:53:54,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:53:56,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:53:58,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:00,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:02,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:04,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:07,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:09,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:11,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:13,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:15,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:17,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:19,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:21,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:23,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:25,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:27,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:29,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:31,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:33,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:35,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:37,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:39,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:41,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:43,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:47,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:49,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:51,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:53,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:55,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:57,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:54:59,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:01,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:04,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:05,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:07,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:09,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:11,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:13,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:15,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:17,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:19,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:21,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:23,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:26,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:28,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:30,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:32,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:34,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:36,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:38,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:40,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:42,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:44,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:46,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:48,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:50,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:52,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:54,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:56,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:55:58,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:00,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:08,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:10,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:12,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:14,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:16,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:18,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:20,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:23,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:24,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:26,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:28,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:36,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:38,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:41,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:43,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:45,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:47,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:49,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:57,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:56:59,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:01,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:03,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:11,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:13,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:15,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:17,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:26,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:29,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:31,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:33,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:35,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:37,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:45,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:48,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:50,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:52,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:54,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:56,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:57:58,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:00,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:02,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:04,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:06,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:08,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:10,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:12,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:14,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:16,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:18,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:20,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:22,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:24,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:26,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:28,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:30,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:32,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:34,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:36,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:38,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:40,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:43,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:45,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:47,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:49,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:51,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:53,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:55,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:58:58,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:00,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:02,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:04,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:06,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:09,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:11,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:13,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:15,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:17,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:19,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:20,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:22,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:31,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:33,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:35,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:37,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:39,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:41,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:43,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:45,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:47,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:49,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:50,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:52,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:54,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:57,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:59:59,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:01,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:09,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:12,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:14,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:22,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:24,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:26,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:33,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:35,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:37,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:39,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:41,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:43,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:51,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:53,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:55,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:57,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:00:59,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:01,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:04,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:06,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:08,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:10,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:12,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:14,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:22,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:24,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:26,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:28,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:30,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:32,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:34,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:36,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:38,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:46,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:54,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:56,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:58,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:00,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:02,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:11,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:13,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:15,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:17,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:19,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:21,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:29,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:31,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:33,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:35,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:37,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:39,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:42,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:44,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:46,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:48,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0]